METHOD AND APPARATUS FOR THERMAL PROCESSING
20220018538 · 2022-01-20
Inventors
Cpc classification
F23G5/12
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B01D1/14
PERFORMING OPERATIONS; TRANSPORTING
F23G5/46
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F23G7/008
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F23G5/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F23G7/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B01D1/14
PERFORMING OPERATIONS; TRANSPORTING
F23G5/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F23G5/12
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F23G5/38
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A method and apparatus for thermal processing of contaminated liquids is disclosed. The system employs an efficient and robust pulse jet burner as its basic energy source. This energy is then used to generate steam which may subsequently be used for a variety of processing and purification steps. A multiple-chamber approach is used: a burner chamber contains the pulse jet burner, a neighboring heat exchanger chamber uses this heat energy to initiate the purification process which started in a third neighboring coagulator chamber into which the contaminated fluids are initially introduced to the system. Combustible liquids which are separated from the contaminated fluids may be used to power the pulse jet for self-contained operation. High temperature flue gases from the pulse jet pass through a supercharger box and then into a vortex dryer which may have a secondary vortex dryer for initial drying of wet solid fuels.
Claims
1. A thermal processing apparatus for processing contaminated liquids and solid wastes, comprising: a first chamber, comprising: a water-filled burner chamber, comprising: a burner, fully immersed in the water and having an inlet and an outlet; and a first steam outlet; and an air-filled supercharger box configured to provide air to the inlet and outlet of the burner; a second chamber, comprising an array of heat exchanger tubes having a first steam inlet and a second steam outlet, wherein the first steam inlet is configured to receive steam from the first steam outlet; and a third chamber, comprising an array of coagulator tubes or plates having a second steam inlet, wherein the second steam inlet is configured to receive steam from the second steam outlet.
2. The thermal processing apparatus of claim 1, the supercharger box further comprising a fan configured to raise the air pressure within the supercharger box up to 3 atmospheres pressure to enhance the combustion efficiency of the burner.
3. The thermal processing apparatus of claim 1, the burner comprising a combustion chamber having inner and outer walls, wherein the inner wall is thermally insulated from the outer wall and is comprised of high temperature metal, and wherein the outer wall is in contact with the water.
4. The thermal processing apparatus of claim 3, the combustion chamber further comprising an injector for injecting fuel between the inner and outer walls for pre-heating, and wherein the inner wall is configured with a multiplicity of openings to enable the pre-heated fuel to enter the combustion chamber.
4. (canceled)
5. The thermal processing apparatus of claim 1, wherein the first, second, and third chambers are open at the bottom into a common volume.
6. The thermal processing apparatus of claim 5, further comprising an array of electrically-biased plates configured in the common volume to remove dissolved metals from the liquid in the common volume, to magnetically remove iron, and to hydrolyze water.
7. The thermal processing apparatus of claim 5, further comprising an auger for removal of solid waste accumulated within the common volume.
8. The thermal processing apparatus of claim 1, further comprising a gas outlet at the top of the third chamber for venting of “light ends”.
9. The thermal processing apparatus of claim 1, further comprising a fourth chamber, configured as a dryer for wet solid wastes and comprising: an inner chamber; an outer chamber surrounding the inner chamber; a first inlet configured to receive a first portion of hot flue gas from the supercharger box and to inject the first portion into the inner chamber tangentially, thereby inducing vortex motion of gases within the inner chamber; a steam generating coil configured in the space outside the inner chamber and inside the outer chamber; and a second inlet configured to receive a second portion of hot flue gas from the supercharger box and to inject the second portion into the space outside the inner chamber and inside the outer chamber, thereby heating the steam generating coil to produce steam.
10. The thermal processing apparatus of claim 9, wherein the fourth chamber further comprises an auger for removal of solid waste accumulated at the bottom of the inner chamber.
11. The thermal processing apparatus of claim 9, wherein the fourth chamber further comprises a secondary dryer for partially drying wet solid waste, wherein the secondary dryer is configured to inject the partially dried solid wastes into the inner chamber.
12. The thermal processing apparatus of claim 11, wherein the secondary dryer is configured with an auger for feeding wet solid waste into the secondary dryer.
13. The thermal processing apparatus of claim 1, in which the burner comprises a pulse jet burner and further comprising tuning cones for controlling the pulse frequency of the pulse jet burner, independently of the power output from the pulse jet burner.
14. (canceled)
15. (canceled)
16. (canceled)
17. (canceled)
18. (canceled)
19. (canceled)
20. A thermal processing apparatus for processing contaminated liquids and solid wastes, comprising: a first chamber, comprising: a water-filled burner chamber, comprising: a forced draft burner, fully immersed in the water and comprising: a first outlet; a second outlet; and a combustion chamber; and a first steam outlet; and an air-filled supercharger box configured to provide pressurized air to the first and second outlets; a second chamber, comprising an array of heat exchanger tubes having a first steam inlet and a second steam outlet, wherein the first steam inlet is configured to receive steam from the first steam outlet; a third chamber, comprising an array of coagulator tubes or plates having a second steam inlet, wherein the second steam inlet is configured to receive steam from the second steam outlet; and a fourth chamber, configured as a dryer for wet solid wastes and comprising: an inner chamber; an outer chamber surrounding the inner chamber; a first inlet configured to receive a first portion of hot flue gas from the supercharger box and to inject the first portion into the inner chamber tangentially, thereby inducing vortex motion of gases within the inner chamber; a steam generating coil configured in the space outside the inner chamber and inside the outer chamber; a second inlet configured to receive a second portion of hot flue gas from the supercharger box and to inject the second portion into the space outside the inner chamber and inside the outer chamber, thereby heating the steam generating coil to produce steam; and a secondary dryer for partially drying wet solid waste, wherein the secondary dryer is configured to inject the partially dried solid wastes into the inner chamber, and wherein the secondary dryer comprises an auger configured to inject wet solid waste into the secondary dryer.
21. The thermal processing apparatus of claim 20, the supercharger box further comprising a fan configured to raise the air pressure within the supercharger box up to 3 atmospheres pressure to enhance the combustion efficiency of the forced draft burner.
22. The thermal processing apparatus of claim 20, wherein the first, second, and third chambers are open at the bottom into a common volume, and wherein an array of electrically-biased plates is configured in the common volume to remove dissolved metals from the liquid in the common volume.
23. The thermal processing apparatus of claim 22, further comprising: an auger for removal of solid waste accumulated within the common volume; and a gas outlet at the top of the third chamber for venting of “light ends”.
24. The thermal processing apparatus of claim 20, wherein the fourth chamber further comprises: an auger for removal of solid waste accumulated at the bottom of the inner chamber; and a secondary dryer for drying wet solid waste, and configured to inject the dried solid wastes into the inner chamber.
25. (canceled)
26. (canceled)
27. The thermal processing apparatus of claim 1, wherein the second chamber further comprises a demister at the top of the chamber for removing carry-over liquid droplets from the gas flow exiting from the second chamber through the demister.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] For a more thorough understanding of the present invention, and advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
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DETAILED DESCRIPTION
[0041] The subject apparatus and methods are described in the context of representative embodiments that are not intended to be limiting in any way.
[0042] In the following description, certain terms may be used such as “up”, “down”, “upper”, “lower”, “horizontal”, “vertical”, “left”, “right,” and the like. These terms are used, where applicable, to provide some clarity of description when dealing with relative relationships. But, these terms are not intended to imply absolute relationships, positions, and/or orientations. For example, with respect to an object, an “upper” surface can become a “lower” surface simply by turning the object over. Nevertheless, it is still the same object.
[0043] Embodiments of the invention can eliminate the need for injection wells and storage of contaminated materials, enabling responsible and technically affordable solutions. This will free future generations from the burden of a damaged and polluted environment. The correction and rehabilitation of the environment can be accomplished with these new environmentally friendly processes.
[0044] Embodiments of the invention provide a high pressure burner for use in submerged combustion thermal processor for processing oil production waters.
[0045] Embodiments of the invention can provide an energy source compatible with the thermal recovery of waste processing gases for processing production and fracking water into a pure distillate for enhanced oil recovery (EOR). In some embodiments, prior art thermal processes are modified with a unique twist that accommodates remedies these processes' shortcomings. These shortcomings directly enhance production and become assets in the thermal processor of the present invention.
[0046] A thermal processor developed by the inventor in the early 1990's demonstrated the ability to process many fluids with various contaminants and emulsions that were costly to crack and offered thermal recovery of value to add to this unique distillation process. Oil fields that had low grade gases which were being flared off could easily handle this processing needed to increase viability and provide gases for EOR. The problems of shallow recovery wells and deeper wells can be accommodated by the availability of byproducts of this enhanced distillation. Pressures and simplified injection are products of this method of recovery.
[0047] In some embodiments, the process begins with a dynamic compressor-less (“valveless pulse jet”) burner. The burner uses a shock wave to act as a valve (instead of an actual valve) to draw gases into the combustion chamber. The inlet can have a valve or a specially-shaped orifice that accommodates the shock wave, creating an interruption of flow into the burner chamber. The pulse created by this wave creates a suction as the gases from combustion move through the burner. The shock wave also stops incoming gas or fluid by means of the dynamic increase in energy as the shock wave expands. The combustion chamber depends on the motion of the gas moving through the tube with a lower pressure at one end to create the flow of gases during the expansion of the shock wave. This use of gases eliminates the need for a compressor to add air or create flow at the same time providing enough air to maintain a proper stoichiometric fuel-air ratio.
[0048] The normal shortcomings of this type of combustion process are overheating of the burner—this can destroy the metal and constant use will eventually result in failure of the burner. Embodiments of the process of the present invention use submerged combustion to transfer heat directly from the burner to the surrounding waste water material to enable a long lifetime. The combustion chamber has an insulated inner shell to provide a superheated thermal mass to ensure complete oxidation of fuels—this shell may be designed using more expensive alloys or titanium that can resist the rigors of high heat. A second outer wall in direct contact with the surrounding water may then be constructed from less exotic metals. Exothermic reactions and oxidizers can replace the hydrocarbon reaction in the chamber and produce pure steam and carbon dioxide for steam-shift processes. With minor modifications to the valve or valveless intake ports. The inner wall may comprise a catalyzing material such as combinations of ceramic catalysts molded into the required combustion chamber shape. Timed resonance can be specific for certain reactions by using injectors and timing their frequency of fuel delivery to a specific resonance. When using gases and oxidizers or other reactants, a mechanical valve or standard reed-type valves can work, or a sodium-filled valve can be used on the intake port. The normally-closed position is used in most pulse jet engines but the use of a focused shock wave can be used to close a normally-open valve, thus allowing longer life valving for these gas expansion pulse jet engines and devices.
[0049] Other shortcomings of prior art pulse jet type combustion burners are loud noise from the rapid expansion in the combustion chamber and loud closing of the air inlet valves. The vibration of the wall in the combustion tube is dampened by the thermal transmission to the surrounding water and the gases around the tube formed by seam bubbles also create a sound-insulating effect as the sound energy disperses into the surrounding bath. This sound wave also aids in the dissociation of molecules in the distillation/separation process.
[0050] By modifying the fuel-air ratio and the tube diameters and lengths, thereby increasing or decreasing the back pressure, different harmonics can be achieved to enhance production. The optimum frequency may be experimentally determined at which energy flow is maximized for increased production. The use of sound, heat, and resonance vibration from the shock wave induces a separation that can produce an optimized balance of products. The pressure pulse in the system may be used to enhance particular chemical reactions or processes that are pressure-sensitive. A second process chamber may be used to increase thermal production and higher pressures, accepting the high velocity gases from the burner and passing them through a “ram induction Venturi” afterburner with thermal oxidizing agents and the injection of additional fuel to increase pressure and gas velocity in this second processing chamber for increased efficiency.
[0051] The superheated exhaust gases pass into a thermal catalytic chamber where liquid and gases may be processed using various catalysts. If water is to be processed, the resulting steam can be reformed by passing it through, along with the byproducts of combustion, to make hydrogen. This gas can aid in solvent recovery of heavy oil and bitumen, and tar sands recovery processes at the same time, providing pure distillate for these extraction processes and EOR processing. Gases then exit the system and pass through a dryer where superheated gases are cooled and saturated gases give up their heat when liquids from the main tank are sprayed into them to crystallize the solids in the dryer. More liquid is added to the main tank to maintain gas pressure equilibrium and proper balance of suspended solids. Gases the pass back into dispersion tubes to further evaporate liquid to make concentrate for the dryer. Gases are now fully saturated and pass into the distillate recovery section, or can be passed into the atmosphere. Gases are at 193° F., and are fully saturated with deionized water droplets. These microdroplets are very difficult to accumulate. Removing the thermal energy by converting the heat to electrical energy as they pass over thermal-electric Seebeck effect plates creates electrical energy while simultaneously cooling the gases. This electrical energy is used to keep batteries charged and to run electronics and/or to supply supplemental energy to the metals recovery plates at the bottom of the main chamber.
LISTING OF NUMBER CALLOUTS IN FIGURES
[0052] In
[0345]
Structural Elements of the Pulse Jet Burner
[0350] The pulse jet is completely submerged in water. Normal pulse jet engines operate in air in order to maintain sufficiently high wall temperatures to maintain the pulsed combustion process. The pulse jet in embodiments of the present invention may have a double-wall structure enabling an inner wall to remain at sufficiently high temperatures to maintain combustion, but where an outer wall remains substantially cooler, but still above boiling temperature at atmospheric pressure.
[0351] Air and (optionally) fuel enters from the supercharger box through inlet cone 112 leading to inlet tube 108. A boundary layer 118 is established on the inner wall of the cone 112 and tube 108. Superheated exhaust 116 exits into supercharger box through the outlet cone 102 with exit cone 110 at the entrance to the supercharger box
Fuel Injection
[0352] Multiple possible methods for fuel injection into the pulse jet (not mutually-exclusive) fall within the scope of the invention: [0353] a. Fuel may be injected 180 into the boundary layer 118 of the entrance cone 112 [
Combustion Chamber
[0358] The combustion chamber 106 has a novel double-walled design shown in more detail in view 150 for the following purposes: [0359] a. Inner wall (comprised of sections 165, 166, 167, 169) may be formed from catalytic high-temperature metals to facilitate the burning process, enclosing the combustion chamber 228. The inner wall may be separated from the outer wall by thermally-insulating spacers 163. Fuel may be circulated in the space between the inner and outer walls to preheat the fuel prior to burning as described above. Proper functioning of the pulse jet burner requires that the inner wall in contact with the burning fuel is extremely hot (red to white hot). The inner wall may alternatively be molded out of ceramic materials with embedded catalysts, or formed by standard metal-forming processes. By separating the combustion chamber at the joint comprised of flanges 107 and 197, the inner wall may be removed for replacement or cleaning. [0360] b. Outer wall 106 may be fabricated from stainless steel or other metal—it remains much cooler than the inner wall (although still hot enough to potentially generate steam) since it is in direct contact with the boiling water surrounding the pulse jet burner. Heat 155 is conducted from the inner wall to the outer wall by convection and radiation to the outer wall, and then into the boiling water surrounding the pulse jet burner.
Benefits of Pulse Jet Burners over Conventional Burners
[0361] A pulse jet, and in particular the valveless pulse jet shown here, has the substantial advantage of not requiring a blower (typically up to 25 horsepower) to draw air into the combustion chamber, since the pressure waves within the outlet and inlet tubes serve this function. The combustion chamber must be at an extremely high temperature to induce combustion of the fuel in periodic pulses.
Supercharger Box
[0362] The supercharger box adjoins the liquid-filled burner chamber at the right of
[0363] At the entrance cone 130 of the larger pipe 132, a steam eductor 117 may optionally be located. At the entrance cone 132 of the smaller pipe 134, another steam eductor 117 may also optionally be located. The function of the steam eductors is to increase the pressure and velocity of the gases flowing out of the supercharger box into chamber #4, thereby enhancing the generation of vortex air flow (see
[0364] Within larger pipe 132, a first tuning cone 131 may be located; within smaller pipe 136 a second tuning cone 133 may also be located. The functioning of these cones is described in the discussion of
Injection of Fuel and Oxidizers
[0365] Fuel may be introduced into the compressed air within the supercharger box, prior to flowing into the inlet tube of the pulse jet burner. In addition, oxygen may also be injected into the boundary layer in the entrance tube cone 112 to enhance the efficiency of the combustion process in chamber 106.
[0366]
[0367] an inlet cone 112 leading to an inlet tube 108,
[0368] a combustion chamber 106,
[0369] an outlet tube 104, leading to an outlet elbow 101, which connects to an outlet cone 102 and then outlet cone 110,
[0370] wall 115 separating the water-filled chamber #3 from the (air and gas-filled) supercharger box,
[0371] outer wall 152 of chamber #3,
[0372] pulse jet support plates 109 and 111,
[0373] a boundary layer 114 formed inside exit cones 102 and 110,
[0374] a boundary layer 118 formed inside inlet cone 112 and inlet tube 108,
[0375] flanges 113 and 193 connect the outlet elbow 104 to the outlet cone 102,
[0376] optional steam eductors 117 at the entrance cones 130 and 134,
[0377] optional tuning cone 131 in larger pipe 132
[0378] optional tuning cone 133 in smaller pipe 136, and
[0379] section A-A which is shown in
[0380] In some embodiments of the present invention, a forced-draft burner may be employed in place of the pulse jet burner.
[0381]
[0382] Upon initial start-up of the system, typically propane may be used. After the system is running, wellhead gas may be added or substituted for the propane. Optionally, propane may be injected from one or more of the locations listed in
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The top view in
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Alternative Pulse Jet Burner Configuration
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Chamber #3—Burner Chamber
[0399] The structure and operation of chamber #3 (the burner chamber) 402 is described above in
Chamber #2—Condenser or Heat Exchanger Chamber
[0400] The (center) heat exchanger (condenser) chamber 404 is both structurally and functionally very complex. At the top of chamber #2, an array of heat exchanger tubes 456 is connected together by manifolds 457. Each horizontal bank of heat exchanger tubes is electrically connected together, however the banks are electrically insulated from each other and are connected alternately (top to bottom) to a power supply providing equal magnitude and opposite polarity voltages P1 and −P1—these voltages may reverse polarity typically over time frames of a few minutes. The heat exchanger tubes receive steam 502 from the accumulated steam (at a temperature above 192° F.) above the water-steam interface 208 in burner chamber #3 as shown—this steam flows down through the banks of heat exchanger tubes, gradually transferring its latent heat to the surrounding fluid as illustrated and described in more detail in
[0401] At the bottom of the heat exchanger tube array, the remaining steam and condensate flows out through manifold 591 and over to chamber #1, where it is used to heat the coagulation plates (see below). At the bottom of chamber #2, a replaceable array of plates (typically ferrite or other magnetic material) 514 is electrically biased (typically with alternating +30 and −30 V biases). These plates may have three different functions (not necessarily mutually-exclusive), depending on the types of contamination in the water: 1) removal of metallic ions out of solution, 2) magnetic removal of iron particles, and 3) hydrolysis of water to generate oxygen and hydrogen for enhancement of the chemical processes occurring in the upper regions of chamber #2. For some of these three applications, materials will deposit onto these plates—these bias voltages would be periodically reversed to prevent excessive build-up of deposited material. Plates 514 are configured to be easily removable to enable recovery of the valuable deposited metal from solution. In addition, when these plates react with the metallic solution, hydrogen-rich gas and oxygen are generate by the electrolytic decomposition of the water—this gas may be collected (optional collector not shown) or it may be allowed to bubble up through chamber #2 and then to pass through demister 504 into gas flow 506. The downward flow at the bottom of chamber #2 contains solid condensates, and more concentrated liquid waste water. Additional feed water 1310 from the clarifier (see
[0402] The chemical processes in chamber #2 are driven by all the sources of energy from chamber #3: steam heat, superheated exhaust gases, and vibration 512 from the pulsed periodic burning process. Calcium carbonate may be added (typically at the top of chamber #2) to perform the following functions: [0403] 1. Odor reduction, particularly in the case of “sour” waste material (high sulfur content), [0404] 2. Absorption of metallic gases, [0405] 3. Control of pH (typically preferred to be in the range 6.5 to 7.5), and [0406] 4. Binds CO.sub.2.
[0407] Sludge 462 accumulates at the bottom of chamber #2, and an auger 582 and 583 may remove this sludge 584 which may be loaded 723 into the dryer in
[0408] At the top of chamber #2, a demister 504 removes droplets entrained in the rising steam and exhaust gas mixture—the demisted gases 506 may then transmitted to the Peltier effect electrical power generator. Above the level of the accumulated sludge in the bottom of chamber #2, outlet pipe 564 removes concentrates 565 which are fed to the injector (see
[0409] Within pipes 542, optional steam eductors 408 may be located. The function of the steam eductors is to enable initial start-up of the system by facilitating the removal of water from within pipes 542. During system operation after start-up, steam eductors 408 may continue to operate.
[0410]
[0411] Inside the heat exchanger tubes 456, steam from chamber #3 is flowing downwards, gradually condensing 474. The latent heat released by this condensation flows outwards 488 into the surrounding water, where it induces steam formation 472 on the outer walls of the heat exchanger tubes. This process is possible as discussed in
Chamber #1—Coagulator Chamber
[0412] The coagulator chamber (406 chamber #1) is one possible initial entry point 421 for liquid wastes (typically at around 60° F.) into the system for reconditioning. Waste liquids enter chamber #1, passing between coagulator plates 420 (see
[0413]
[0414]
[0415] Insulators 901 separate the pairs of coagulation plates 420 (pairs of tubes in an alternative embodiment), and a bipolar power supply 912 is configured to supply equal magnitude and opposite polarity voltages P1 and—P2 through wires 914 and 916 to alternate plates (or tubes) as shown. The transverse electric fields thus induced between the plates in the fluid between the pairs of plates induces coagulation of oils out of the contaminated waste water entering chamber #1 through tube 421 (see
Dry Solids Processing Chamber (Dryer)
[0416]
[0417] Within the volume between the inner 708 and outer 706 walls of the main dryer, the steam generation coil 713 is supplied at the top through tube 711 with feed water 709 which then flows downwards in the coil 713 to form steam 746 which is then directed through pipe 748 and throttle valve 744 into the secondary dryer 726 for use in breaking up larger chunks of wet solid waste (see
[0418] At the bottom of the main dryer, solid material 716 falls into an auger 719 which removes 718 the dried solids through pipe 720. Alternatives to an auger include a conveyor belt, or a solid collection chamber directly below the main dryer. At the top of the main dryer, an exhaust gas plenum 701 collects the lighter dried material which was circulated within the gas vortex and due to its lower weight has moved inwards (while heavier wet materials flowed outwards until they were dried more). Also flowing 702 out the plenum 701 are superheated flue gas, steam, nitrogen, and carbon dioxide 703. This gas mixture is directed into tubes 542 at the bottom of chamber #2 to drive the heat exchanger and coagulation processes there (see
[0419] At the left of
[0420]
[0421] Optionally, condensate 792 in pipe 790 which is connected to pipe 564 at the bottom of chambers #1-#3 may be entrained and injected into the main dryer. Prior to injection of condensate 792 (i.e., between the exit from chambers #1-#3 and injection into chamber #4), iron nanoparticles may be injected into condensate 792. These iron nanoparticles may enhance the steam reforming (2 H.sub.2O.fwdarw.2 H.sub.2+O.sub.2) which occurs at catalysis plate 798
[0422] Similarly, and also optionally, condensate 743 in pipe 742 which is connected to pipe 564 at the bottom of chambers #1-#3 may be entrained and injected into the main dryer.
Floating Dome Digester
[0423]
[0424]
Peltier Effect Power Generation System
[0425]
[0426] At the bottom of
Decanter (Clarifier)
[0427]
Wet Scrubber Subsystem
[0428]
[0429] Some embodiments of the invention provide a thermal processing apparatus for processing contaminated liquids and solid wastes, comprising: [0430] a first chamber, comprising: [0431] a water-filled burner chamber, comprising: [0432] a pulse jet burner, fully immersed in the water and having an inlet and an outlet; and [0433] a first steam outlet; and [0434] an air-filled supercharger box configured to provide air to the inlet and outlet of the pulse jet burner; [0435] a second chamber, comprising an array of heat exchanger tubes having a first steam inlet and a second steam outlet, wherein the first steam inlet is configured to receive steam from the first steam outlet; and [0436] a third chamber, comprising an array of coagulator tubes or plates having a second steam inlet, wherein the second steam inlet is configured to receive steam from the second steam outlet.
[0437] In some embodiments, the supercharger box further comprises a fan configured to raise the air pressure within the supercharger box up to 3 atmospheres pressure to enhance the combustion efficiency of the pulse jet burner.
[0438] In some embodiments, the pulse jet burner comprises a combustion chamber having inner and outer walls, wherein the inner wall is thermally insulated from the outer wall and is comprised of high temperature metal, and wherein the outer wall is in contact with the water.
[0439] In some embodiments, the combustion chamber further comprises an injector for injecting fuel between the inner and outer walls for pre-heating, and wherein the inner wall is configured with a multiplicity of openings to enable the pre-heated fuel to enter the combustion chamber.
[0440] In some embodiments, the second chamber further comprises a demister at the top of the chamber for removing carry-over liquid droplets from the gas flow exiting from the second chamber through the demister.
[0441] In some embodiments, the first, second, and third chambers are open at the bottom into a common volume.
[0442] In some embodiments, the thermal processing apparatus further comprises an array of electrically-biased plates configured in the common volume to remove dissolved metals from the liquid in the common volume, to magnetically remove iron, and to hydrolyze water.
[0443] In some embodiments, the thermal processing apparatus further comprises an auger for removal of solid waste accumulated within the common volume.
[0444] In some embodiments, the thermal processing apparatus further comprises a gas outlet at the top of the third chamber for venting of “light ends”.
[0445] In some embodiments, the thermal processing apparatus further comprises a fourth chamber, configured as a dryer for wet solid wastes and comprising: [0446] an inner chamber; [0447] an outer chamber surrounding the inner chamber; [0448] a first inlet configured to receive a first portion of hot flue gas from the supercharger box and to inject the first portion into the inner chamber tangentially, thereby inducing vortex motion of gases within the inner chamber; [0449] a steam generating coil configured in the space outside the inner chamber and inside the outer chamber; and [0450] a second inlet configured to receive a second portion of hot flue gas from the supercharger box and to inject the second portion into the space outside the inner chamber and inside the outer chamber, thereby heating the steam generating coil to produce steam.
[0451] In some embodiments, the fourth chamber further comprises an auger for removal of solid waste accumulated at the bottom of the inner chamber.
[0452] In some embodiments, wherein the fourth chamber further comprises a secondary dryer for partially drying wet solid waste, wherein the secondary dryer is configured to inject the partially dried solid wastes into the inner chamber.
[0453] In some embodiments, the secondary dryer is configured with an auger for feeding wet solid waste into the secondary dryer.
[0454] In some embodiments, the thermal processing apparatus further comprises tuning cones for controlling the pulse frequency of the pulse jet burner, independently of the power output from the pulse jet burner.
[0455] Some embodiments provide a thermal processing apparatus for processing contaminated liquids and solid wastes, comprising: [0456] a first chamber, comprising: [0457] a water-filled burner chamber, comprising: [0458] a pulse jet burner, fully immersed in the water and comprising: [0459] an inlet; [0460] an outlet; and [0461] a combustion chamber, comprising inner and outer walls, wherein the inner wall is thermally insulated from the outer wall and is comprised of high temperature metal, and wherein the outer wall is in contact with the water; and [0462] a first steam outlet; and [0463] an air-filled supercharger box configured to provide air to the inlet and outlet of the pulse jet burner; [0464] a second chamber, comprising an array of heat exchanger tubes having a first steam inlet and a second steam outlet, wherein the first steam inlet is configured to receive steam from the first steam outlet; [0465] a third chamber, comprising an array of coagulator tubes or plates having a second steam inlet, wherein the second steam inlet is configured to receive steam from the second steam outlet; and [0466] a fourth chamber, configured as a dryer for wet solid wastes and comprising: [0467] an inner chamber; [0468] an outer chamber surrounding the inner chamber; [0469] a first inlet configured to receive a first portion of hot flue gas from the supercharger box and to inject the first portion into the inner chamber tangentially, thereby inducing vortex motion of gases within the inner chamber; [0470] a steam generating coil configured in the space outside the inner chamber and inside the outer chamber; and [0471] a second inlet configured to receive a second portion of hot flue gas from the supercharger box and to inject the second portion into the space outside the inner chamber and inside the outer chamber, thereby heating the steam generating coil to produce steam.
[0472] In some embodiments, the supercharger box further comprises a fan configured to raise the air pressure within the supercharger box up to 3 atmospheres pressure to enhance the combustion efficiency of the pulse jet burner.
[0473] In some embodiments, the combustion chamber further comprises an injector for injecting fuel between the inner and outer walls for pre-heating, and wherein the inner wall is configured with a multiplicity of openings to enable the pre-heated fuel to enter the combustion chamber.
[0474] In some embodiments, the first, second, and third chambers are open at the bottom into a common volume, and wherein an array of electrically-biased plates is configured in the common volume to remove dissolved metals from the liquid in the common volume, to magnetically remove iron, and to hydrolyze water.
[0475] In some embodiments, the thermal processing apparatus further comprises: [0476] an auger for removal of solid waste accumulated within the common volume; and [0477] a gas outlet at the top of the third chamber for venting of “light ends”.
[0478] 19. The thermal processing apparatus of claim 14, wherein the fourth chamber further comprises: [0479] an auger for removal of solid waste accumulated at the bottom of the inner chamber; and [0480] wherein an auger is configured to inject wet solid waste into the secondary dryer.
[0481] Some embodiments of the invention provide a thermal processing apparatus for processing contaminated liquids and solid wastes, comprising: [0482] a first chamber, comprising: [0483] a water-filled burner chamber, comprising: [0484] a forced draft burner, fully immersed in the water and comprising: [0485] a first outlet; [0486] a second outlet; and [0487] a combustion chamber; and [0488] a first steam outlet; and [0489] an air-filled supercharger box configured to provide pressurized air to the first and second outlets; [0490] a second chamber, comprising an array of heat exchanger tubes having a first steam inlet and a second steam outlet, wherein the first steam inlet is configured to receive steam from the first steam outlet; [0491] a third chamber, comprising an array of coagulator tubes or plates having a second steam inlet, wherein the second steam inlet is configured to receive steam from the second steam outlet; and [0492] a fourth chamber, configured as a dryer for wet solid wastes and comprising: [0493] an inner chamber; [0494] an outer chamber surrounding the inner chamber; [0495] a first inlet configured to receive a first portion of hot flue gas from the supercharger box and to inject the first portion into the inner chamber tangentially, thereby inducing vortex motion of gases within the inner chamber; [0496] a steam generating coil configured in the space outside the inner chamber and inside the outer chamber; [0497] a second inlet configured to receive a second portion of hot flue gas from the supercharger box and to inject the second portion into the space outside the inner chamber and inside the outer chamber, thereby heating the steam generating coil to produce steam; and [0498] a secondary dryer for partially drying wet solid waste, wherein the secondary dryer is configured to inject the partially dried solid wastes into the inner chamber, and wherein the secondary dryer comprises an auger configured to inject wet solid waste into the secondary dryer.
[0499] In some embodiments, the supercharger box further comprises a fan configured to raise the air pressure within the supercharger box up to 3 atmospheres pressure to enhance the combustion efficiency of the forced draft burner.
[0500] In some embodiments, the first, second, and third chambers are open at the bottom into a common volume, and wherein an array of electrically-biased plates is configured in the common volume to remove dissolved metals from the liquid in the common volume.
[0501] In some embodiments, the thermal processing apparatus further comprises: [0502] an auger for removal of solid waste accumulated within the common volume; and [0503] a gas outlet at the top of the third chamber for venting of “light ends”.
[0504] In some embodiments, the fourth chamber further comprises: [0505] an auger for removal of solid waste accumulated at the bottom of the inner chamber; and [0506] a secondary dryer for drying wet solid waste, and configured to inject the dried solid wastes into the inner chamber.
[0507] Some embodiments of the invention provide a method for thermal processing of contaminated liquids and solid wastes, comprising: [0508] configuring a thermal processing system to comprise: [0509] a first chamber, comprising: [0510] a water-filled burner chamber, comprising: [0511] a pulse jet burner, fully immersed in the water and comprising: [0512] an inlet; [0513] an outlet; and a combustion chamber; and [0514] a first steam outlet; and [0515] an air-filled supercharger box configured to provide air to the inlet and outlet of the pulse jet burner; [0516] a second chamber, comprising an array of heat exchanger tubes having a first steam inlet and a second steam outlet, wherein the first steam inlet is configured to receive steam from the first steam outlet; [0517] a third chamber, comprising an array of coagulator tubes or plates having a second steam inlet, wherein the second steam inlet is configured to receive steam from the second steam outlet; and wherein the first, second, and third chambers are open at the bottom into a common volume; [0518] an array of electrically-biased plates configured in the common volume to remove dissolved metals from the liquid in the common volume, to magnetically remove iron, and to hydrolyze water; [0519] an auger for removal of solid waste accumulated within the common volume; and [0520] a fourth chamber, comprising: [0521] an inner chamber; [0522] an outer chamber surrounding the inner chamber; [0523] a first inlet configured to receive a first portion of the hot flue gas from the supercharger box and to inject the first portion into the inner chamber tangentially; [0524] a steam generating coil configured in the space outside the inner chamber and inside the outer chamber; and [0525] a second inlet configured to receive a second portion of the hot flue gas from the supercharger box and to inject the second portion into the space outside the inner chamber and inside the outer chamber; and [0526] a secondary dryer for partially drying wet solid waste, wherein the secondary dryer is configured to inject the partially dried solid wastes into the inner chamber, and wherein the secondary dryer comprises an auger configured to inject wet solid waste into the secondary dryer; [0527] burning fuel within the pulse jet burner to: [0528] generate hot flue gases; [0529] heat the pulse jet burner to a temperature sufficient to boil water in contact with the outside surfaces of the pulse jet burner, thereby creating steam; and [0530] generate pressure pulses within the water; [0531] flowing water into the steam generating coil; [0532] directing a first portion of the hot flue gases into the space outside the inner chamber and inside the outer chamber, thereby heating the water in the steam generating coil to produce steam; [0533] injecting wet solid wastes into the secondary dryer; [0534] partially drying the wet solid wastes in the secondary dryer; [0535] injecting the partially dried solid wastes into the inner chamber; [0536] directing a second portion of the hot flue gases into the inner chamber, thereby inducing: [0537] vortex motion of gases within the inner chamber; and [0538] drying of the partially dried solid waste material; [0539] conducting the steam generated by the pulse jet burner to the heat exchanger tubes, thereby heating and boiling the contaminated fluids within the second chamber; and [0540] conducting the steam from the heat exchanger tubes to the coagulator tubes to facilitate initial processing of contaminated fluids.
[0541] Some embodiments provide a method for thermal processing of contaminated liquids and solid wastes, comprising: [0542] burning fuel within a pulse jet burner to: [0543] generate hot flue gases; [0544] heat the pulse jet burner to a temperature sufficient to boil water in contact with the outside surfaces of the pulse jet burner, thereby creating steam; and [0545] generate pressure pulses within the water; [0546] flowing water into a steam generating coil; [0547] directing a first portion of the hot flue gases into a space outside an inner chamber and inside of an outer chamber, thereby heating the water in the steam generating coil to produce steam; [0548] injecting wet solid wastes into a secondary dryer; [0549] partially drying the wet solid wastes in the secondary dryer; [0550] injecting the partially dried solid wastes into the inner chamber; [0551] directing a second portion of the hot flue gases into the inner chamber, thereby inducing: [0552] vortex motion of gases within the inner chamber; and [0553] drying of the partially dried solid waste material; [0554] conducting the steam generated by the pulse jet burner to heat exchanger tubes, thereby heating and boiling the contaminated fluids within a second chamber; and [0555] conducting the steam from the heat exchanger tubes to coagulator tubes to facilitate processing of contaminated fluids.
[0556] Although embodiments of the present invention and their advantages are described in detail above and below, it should be understood that the described embodiments are examples only, and that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention.