Patent classifications
F23G2201/303
Waste incineration method
A basket for incinerating waste inside an incinerator for a duration longer than fifteen minutes with no need for waste to be molten earlier, particularly when waste is introduced inside the incinerator. The basket includes mainly of a glass fiber envelope: it is preferably stiffened by a lightweight metal structure located inside or outside the envelope or built into it. A gripping handle is installed on top of the assembly that is stiffened at the top by a metal tube to which a lightweight metal structure is fixed and by a base formed from a drip pan fixed to the base of the lightweight metal structure.
WASTE PLASTIC SOLID FUEL INCINERATOR
Provided is a plastic waste solid fuel incinerator comprising: an incinerator housing which has, on the upper portion thereof, a gas outlet through which combustion gas is discharged; a fuel supply unit which transfers and supplies a plastic waste solid fuel; a first combustion unit which continuously transfers and burns the supplied plastic waste solid fuel; a first air supply unit which supplies air needed for combustion to the first combustion unit; a combustion gas induction unit which induces the combustion gas generated from the first combustion unit toward the lower portion of a first combustion chamber; a second combustion unit which is arranged in the lower portion of the first combustion unit and comprises a downward injection nozzle unit which downwardly injects the combustion gas supplied through the combustion gas induction unit in order to reburn the combustion gas; and a second air supply unit which is arranged in the lower portion of the second combustion unit and supplies the air needed for combustion to the second combustion unit by downwardly injecting the air. Accordingly, there is an advantage of allowing continuous combustion using combustion gas generated during the combustion of the plastic waste solid fuel without using a separate auxiliary fuel, thereby reducing incineration costs.
Pyrolysis gasification apparatus for solid refuse fuel
Provided is a pyrolysis gasification apparatus for solid refuse fuel. The apparatus includes: a superheated steam housing formed in a cylindrical shape and installed in a horizontal direction, in which superheated steam is injected into the superheated steam housing; a screw casing formed in a tubular shape extending from one end to the other end inside the superheated steam housing and installed in the horizontal direction inside the superheated steam housing, in which solid refuse fuel (SRF) is introduced into the screw casing; a conveying screw with a plurality of screw blades on an outer peripheral surface, the conveying screw being installed inside the screw casing in the horizontal direction and rotating to convey the solid refuse fuel; and a superheated steam supplier for supplying superheated steam into the superheated steam housing, in which the superheated steam may move through a movement pat.
Optimized thermolysis installation and method for implementing same
A waste thermolysis installation includes a first, drying, enclosure able to vacuum dry the incoming waste and a second, calcining, enclosure, able to perform a vacuum calcination treatment on the dried waste coming from the first enclosure, each enclosure including an external-heating system including a combustion chamber and a vacuum pump which makes it possible to maintain the vacuum in the enclosure and is connected to the enclosure by an extraction pipe, the installation being characterized in that it includes a pipe circulating gas coming from the second enclosure to the second enclosure through the system for the external heating of the second enclosure. Thermolysis method implementing the installation.
VOLATILIZATION AND OXIDATION OF ORGANIC WASTE
In a system and process, organic waste is treated in a reactor to volatilize contaminants such as Perfluoroalkyl substances (PFAS) compounds and/or Contaminants of Emerging Concern (CECs) from the organic waste. Biochar may have reduced or undetectable PFAS compounds or CECs. Most or all of the gas may be thermally oxidized to convert PFAS compounds and/or CECs into less harmful and/or less toxic products or elemental compounds, which may be further removed. Energy may be recovered from one or more parts of the herein described system and process.
METHOD AND TREATMENT FACILITY FOR PHYSICAL AND THERMOCHEMICAL TREATMENT OF BIOMASS
In a method for physical and thermochemical treatment of biomass, the biomass moisture content is reduced in a dryer and ammonia (NH.sub.3) is also released from the biomass during drying. The dried biomass is then either pyrolyzed in a pyrolysis reactor and the pyrolysis gas is forwarded to and combusted in a combustion device to form flue gas, or is combusted in a combustion facility unit to form flue gas. In either case the flue gas is fed to a mixer. Oxygen (O.sub.2) is metered to the flue gas in the mixer and is fed directly to the dryer as drying gas. As the drying gas passes through the dryer, the sulfur dioxide (SO.sub.2) contained in the drying gas and/or the sulfur trioxide (SO.sub.3) chemically reacts with the ammonia (NH.sub.3) to form ammonium sulfite ((NH.sub.4).sub.2SO.sub.3) and/or ammonium sulfate ((NH.sub.4).sub.2SO.sub.4). Also a treatment facility physically and thermochemically treats the biomass.
Plastic-powered power generator
Plastic-powered power generator. In an embodiment, the plastic-powered power generator comprises a primary reactor with an air-fuel distribution assembly configured to supply fluidized polymer, air, and oxidizer to a primary reactor chamber, and an ignition system configured to ignite a mixture of the fluidized polymer, air, and oxidizer. The primary reactor chamber extends into a secondary reactor, to, when ignited, heat air flowing through the secondary reactor from a blower to a heat exchanger. The heated air flow may convert fluid, in a coil within the heat exchanger, into steam, which can drive a turbine to generate electrical power.
A METHOD AND SYSTEM FOR PYROLYSIS AND CARBON DEPOSITION
The invention provides a method of sequential pyrolysis and carbon deposition to produce a composite carbonaceous product, the method comprising: a pyrolysis process step comprising pyrolyzing a pyrolyzable organic feed at a pyrolysis temperature in a first reaction zone in the presence of a non-oxidising gas to produce hot char and pyrolysis gas, wherein the pyrolysis gas and the non-oxidising gas combine to form a gas mixture; discharging the gas mixture from the first reaction zone to a combustion zone and combusting at least a portion of the pyrolysis gas therein, wherein heat produced by the combusting of the pyrolysis gas is transmitted from the combustion zone to the first reaction zone to provide at least a portion of the heat of pyrolysis; and a decomposition process step comprising contacting a hydrocarbon-rich organic gas with the hot char directly after its production in the pyrolysis process step, wherein the hydrocarbon-rich organic gas catalytically decomposes on the hot char at a decomposition temperature which is higher than the pyrolysis temperature, thereby producing gaseous decomposition products comprising hydrogen and a composite carbonaceous material comprising the char with carbon deposits thereon.
BIASED BURNER CONTROL FOR REGENERATIVE OXIDIZERS
Methods and systems for oxidizing gas are provided. An example regenerative oxidizer is provided that includes a combustion chamber to heat gas present in the combustion chamber. The regenerative oxidizer also includes a first heat exchange media bed and a second heat exchange media bed. Each of the first heat exchange media bed and the second heat exchange media bed are in fluid communication with the combustion chamber. The regenerative oxidizer further includes two burners disposed within the combustion chamber to provide a total heat input to the gas present in the combustion chamber. At least one of the two burners is independently adjustable based on the airflow direction.
Thermochemical system and method
A thermochemical system & method may be configured to convert an organic feedstock to various products. A thermochemical system may include a solid material feed module, a reactor module, an afterburner module, and a solid product finishing module. The various operational parameters (temperature, pressure, etc.) of the various modules may vary depending on the desired products. The product streams may be gaseous, vaporous, liquid, and/or solid.