Wet-based catalytic system for CO2 capture, sequestration, and transportation
12312700 ยท 2025-05-27
Inventors
Cpc classification
C25B9/17
CHEMISTRY; METALLURGY
International classification
C25B9/00
CHEMISTRY; METALLURGY
B01D53/32
PERFORMING OPERATIONS; TRANSPORTING
C25B9/17
CHEMISTRY; METALLURGY
Abstract
A catalytic system for CO.sub.2 capture and sequestration. The system includes a reduction cell for separating a liquid or vapor carrier medium having an anode generating oxygen, a CO.sub.2 cathode, and a CO precursor generating hydrogen, oxides of carbon or a hydrocarbon precursor from the carrier medium. In addition, the system includes a power supply for providing electrical power to the anode and the cathode. An electrolysis process occurs where oxygen, hydrogen, and the hydrocarbon precursors are produced. The anode and the cathode include a plurality of geometrical constructs to increase an active surface area of a catalytic surface of the anode and cathode to increase an efficiency of the electrolysis process.
Claims
1. A catalytic system for capture, sequestration and transformation, the system comprising: a cell for containing material in a carrier medium, the cell having an electrode generating oxygen, hydrocarbons, oxides of carbon or hydrogen from the material in the carrier medium; a power supply for providing electrical power to the electrode, wherein an electrolytic process occurs whereby oxygen, hydrogen, oxides of carbon or hydrocarbon precursors are produced; wherein the electrode includes a plurality of geometrical constructs to increase an active surface area of a catalytic surface of the electrode to increase an efficiency of an electrolytic process; wherein the electrode includes through via constructs: wherein each geometrical construct of the plurality of geometrical constructs provides electrical, catalytic and capillary control.
2. The catalytic system according to claim 1 wherein the catalytic system is placed in an carrier system to convert CO.sub.2 based materials into repurposed material.
3. The catalytic system according to claim 2 further comprising a structure configured to located in the catalytic system in-situ with the structure; wherein the structure is configured to enable CO.sub.2 flow over or through the electrode for converting CO.sub.2 based substances to transformed material.
4. The catalytic system according to claim 1 wherein: the plurality of geometric constructs includes a plurality of vias or pillars to increase the surface area of the catalytic surface; the plurality of vias provides additional capillary action across the catalytic surface.
5. The catalytic system according to claim 1 wherein the electrode includes three dimensional constructs.
6. The catalytic system according to claim 5 wherein the three dimensional electrode removes or transforms CO.sub.2 carried in a liquid, gas or solid.
7. The catalytic system according to claim 5 wherein the three dimensional electrode facilitates the transformation of CO.sub.2 into hydrocarbons, hydrogen, and oxides of carbon.
8. The catalytic system according to claim 6 wherein the three dimensional electrode converts the hydrocarbons and oxides of carbon to long chain carbon compounds.
9. The catalytic system according to claim 1 wherein the electrode supports separating gases in a cell into oxygen and fuel gases for an underwater breathing or propulsion system.
10. The catalytic system according to claim 1 wherein high density catalytic features are fabricated on an electrode the anode or the cathode, the high density catalytic features being fabricated using microfabrication techniques.
11. The catalytic system according to claim 1 wherein the through via of the electrode is a three dimensional electrode configured for use in an internal combustion engine for reverting NOx, SOx or COx into fuels, oxidizer or inert materials.
12. A catalytic system for CO.sub.2 capture, sequestration and transformation, the system comprising: a cell for separating a liquid or vapor carrier medium, the cell having a first electrode generating oxygen, and a second electrode generating hydrocarbons, oxides of carbon or hydrogen from CO.sub.2 in the carrier medium; an electrical power supply to the first and second electrodes, wherein an electrolytic process occurs whereby oxygen, hydrogen, oxides of carbon or hydrocarbon precursors are produced; wherein the first and second electrodes include a plurality of geometrical constructs to increase an active surface area of a catalytic surface of the first and electrodes to increase an efficiency of an electrolytic process; wherein the first and second electrodes are through via constructs; wherein each geometrical construct of the plurality of geometrical constructs provides electrolytic and capillary control.
13. The catalytic system according to claim 12 wherein the second electrode is a three dimensional electrode configured for converting carbonic acid to simple hydrocarbons.
14. The catalytic system according to claim 12 wherein the system is configured to utilize a Fischer-Tropsch (FT) process for converting CO.sub.2 hydrocarbons into more complex chemicals or hydrocarbons.
15. The catalytic system according to claim 12 wherein the system is configured for use in biological filtration of blood, cells, tissue and organisms.
16. The catalytic system according to claim 12 wherein the through via constructs is stacked to support transformation and sorting for reaction cycles.
17. The catalytic system according to claim 12 wherein the system is configured for utilizing carbonated rocks to generate CO.sub.2 for transformation into fuel and H.sub.2 for fuel cells and batteries.
18. The catalytic system according to claim 12 wherein the geometric constructs are configured to be utilized as a membrane for a rechargeable battery or fuel cell.
19. The catalytic system according to claim 18 wherein the catalytic features form a catalytic membrane and electrolyte layer.
20. The catalytic system according to claim 18 wherein the catalytic features includes a surface or subsurface structure.
21. The catalytic system according to claim 20 wherein the surface or subsurface structure includes a pillar, routing, trench or via.
22. The catalytic system according to claim 18 wherein the catalytic system is powered by in-situ solid state structures.
23. The catalytic system according to claim 18 wherein the catalytic system generates power in series or parallel on a single layer.
24. The catalytic system according to claim 18 further comprising an electrical routing having a trench and a catalytically active area.
25. The catalytic system according to claim 12 wherein the second electrode is a three dimensional electrode separating reactants from starting solutions.
26. The catalytic system according to claim 15 wherein the system is configured to use metals and other materials the biological filtration.
27. The catalytic system according to claim 12 wherein the through via of the second electrode is a three dimensional electrode configured for use in an internal combustion engine for reverting NOx, SOx or COx into fuels, oxidizer or inert materials.
28. The catalytic system according to claim 12 wherein the second electrode supports separating gases in a cell into oxygen and fuel gases for an underwater breathing or propulsion system.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DESCRIPTION OF THE INVENTION
(36) The present invention is a wet-based catalytic system for carbon dioxide (CO2) capture, sequestration and transformation using high surface area electrodes with emphasis on the cathode plates. There are two types of applications which may be utilized, direct air capture as well as wet solutions. The present invention utilizes wet solutions. Competitive CO.sub.2 capture systems may use gels, amines, and even water to capture and hold CO.sub.2. Some systems require subsequent reprocessing of the absorbents to release the CO.sub.2 forming carbonates and other materials that are typically discarded instead of repurposed, cost effective cathodes (CEC) cathodes. CEC cathodes, interposers (substrates) support the transformation of CO.sub.2 into useful materials instead of treating CO.sub.2 as a wasteful material to be discarded; our interposer supports transformation, a transposer. An analogy. In the past gasoline was disposed as an annoying byproduct during the production of kerosene. Prior to CEC, CO.sub.2 was treated as gasoline in the past, an unwelcome by-product to dispose. In the present invention, this direct air capture solution turns CO.sub.2 into planet saving useful products. Instead of using sorbents to capture and transform CO.sub.2, CEC plates use an active catalytic and material movement approach to transformational CO.sub.2 solutions. As anyone that has been in an elevator or tall building realizes, these structures generate natural air movement (wind/convection) the higher you go. This natural convection occurs due to changes in atmospheric pressure, temperature and outside winds that combine to provide strong air movement in a given space. This air movement can be calculated using various equations and design tools. Useful application of this movement of air is demonstrated in towers used for cooling and exhausting smoke from a point of source to higher elevations, typically from ground to hundreds of feet. In this explanation, towers and building or other structures can be assumed to be the same or a similar application. This movement of air supports a direct air capture approach where stand-alone CO.sub.2 or a CO.sub.2 laden carrier is passed over or through catalytic plates to transform CO.sub.2 or other gases into other products. In some cases, electrical potential is required but in others an improved catalyst alone, with or without solid state energy, might singularty become a transformative solution, eliminating the need for an external electrical bias. It is also possible that CO.sub.2 may be repurposed in a carrier free solution eliminating the need for aqueous solute/solvent. Dissociation of CO.sub.2 with high potential three dimensional (3D) cathodes may also be utilized.
(37) Tower and tall structures improves efficiency in that air movement is supplied naturally without consuming capital resources (electrical power, materials, and equipment) to install fans or blowers to facilitate air movement. The vias in the through glass via (TGV) coated cathode solutions also provides additional material movement due to the high capillary effects of the vias. Similar to the methods used to scrub exhaust air, CO.sub.2 density in a carbonic acid system in these towers can be increased by using spray misting systems to incorporate in a liquid water matrix. CO.sub.2 in air, water vapor is not as high, but will work as well. In the present invention, the catalytic plates provide a better solution as the improved efficiency support smaller and more electrically efficient solutions compared to traditional cathode plate solutions. As a result, the water carrier density requirements might not need be as high. In other embodiments, any material other than glass may also be used as an interposer. Thus, all reference to TGVs may be through vias constructed of other materials in alternate embodiments of the present invention.
(38) In the present invention, the wet-based solution focuses on carbonic acid electrolysis. With the water-based solution, water to CO.sub.2 ratios are much higher with liquid water, compared to vapor, and is the primary carrier for CO.sub.2. Where CO.sub.2 is dissolved in water, the solute, such as a carbonic acid solution is the basis for most electrolysis-like solutions. This solution is more in line with the traditional electrolysis process where cathode and anode pairs generate the targeted materials. The goal in the direct air approach is to minimize water usage and possibly eliminate it, except as when needed to form other hydrocarbon, carbon oxides and exotic materials. The water-based solution is applicable to capture systems in cooling towers, terrestrial aquatic sources, atmospheric CO.sub.2 in rain, and finally exhaust waste systems of various sorts. A hybrid wet and dry solution can theoretically support a recirculating and reclamation system where CO.sub.2 is converted to a reconstituted fuel improving process efficiency. Such a solution would also support running a vehicle on water and a CO.sub.2 tank where CO.sub.2 is bubbled into the water and green energy supports efficient hydrocarbon and carbon monoxide (CO) generation for fuel. In a steam hydrogen process where methane is reacted with water at high temperature, hydrogen is produced with large amounts of CO.sub.2. That CO.sub.2 could be reconstituted to other transformed materials with the proper cathode system. Such plates, with high capillary forces, may also be used to remove CO.sub.2 from the ocean, terrestrial and atmospheric water sources, using the improved catalytic and ultra-high capillary forces. On the other hand, for direct air capture applications, towers may be placed in high population density locations or in remote locations. Either solution supports the decentralized distribution of biofuels, CO, and hydrocarbons from the conversion of CO.sub.2.
(39) In the present invention, a CEC plate is utilized. The electrochemical reduction of carbon dioxide, also known as electrolysis of carbon dioxide, is the conversion of carbon dioxide (CO.sub.2) to more reduced chemical species using electrical energy. Enhanced control is realized using semiconductor processing to add reactive nano-like structures to cathodes. For example, pillars are grown after seed metals are deposited. This can be accomplished by seed and plate or by depositing structures using liftoff like solution. In another technique, vias can also be fabricated by various wet or dry etch solution, even by laser drill. The vias can then be coated using various deposition techniques such as electrolytic and electroless plating, atomic layer deposition (ALD), chemical vapor deposition %CVD), ebeam, sputtering, and other deposition techniques. Such solutions add benefit in that various solid state solutions can be used to make semiconducting, thermoelectric (Seebeck, photovoltaic etc.), and galvanic/voltaic/galvanic solutions for in-situ power generation. Glass (transparent) solutions help improve the photo reaction parts of the process by not blocking light. Such plates may be used to remove CO.sub.2 from ocean, terrestrial and atmospheric water sources. A 3D cathode provides several advantages. First, by utilizing 3D cathode plates, better control in feature size is obtained. Feature size control is maintained when the catalyst is applied in a controlled manner. Semiconductor features can be fabricated with the utmost control down to the nanometer. In other fabrication solution, the catalyst might be fabricated first, then applied to a catalytic plate. This requires more fabrication steps but most of all feature size statistical distribution varies greatly. By fabricating structures directly on the catalytic plates, variation across trillions of features is within less than tenths of microns to support greatly improved catalytic structures and catalytic functionality from cathode to cathode just as the efficiency of each die on a wafer and from wafer to wafer is greatly maintained.
(40) Another advantage is improved feature density. Most other catalytic solutions require fabrication of the catalyst, then placement of the catalyst on the cathode. For example, nanoparticles are fabricated as a stand-alone material. These nanoparticles are applied to a cathode, typically by spray or gluing, losing the individual activity of a given particle. The spray paint coating provides no individual control. With feature fabrication by the ultimate control semiconductor fabrication growth practices afford, each particle maintains a distinct identity; such processes also allow fabrication of complex alloys which have shown to have improved catalytic properties. As a result, the overall density of the particles improves. A spray solution has exposed 3D features that are not controlled. In the present invention, individual feature geometry (size, shape, and position) may be controlled to increase both surface area and density per given area.
(41) Another advantage is higher surface areas are utilized. Semiconductor fabrication allows the increase in aspect ratios thus more surface area. Since area is a cube function, simply changing 111 um structure to 222 um increases the area by 8 times. It's not uncommon to go from 1:1 features to 50:1 and 80:1 increasing the area by orders of magnitude while still maintaining discreet individuality. Both surface (pillars for example) and subsurface (vias) benefit from such fabrication solutions. With process control, both surface and subsurface features may be grown. Fabricating features with very high aspect ratio dramatically increases surface area in many cases with similar cycle time and minimal additional cost. It is not uncommon to fabricate over 100:1 aspect ratios with small geometrical constructs in a wide selection of metals or features that have been fabricated then coated. The through via functions also support strong capillary forces eliminating the need for pumping solutions.
(42) Still another advantage is the assembly process is cheaper. Some of the exotic catalytic solutions can be more expensive than platinum plate electrodes. Fabrication of the material, a carrier material, separate cathode, application, and material lost at spray can be quite expensive. Some nanoparticle solutions might cost more per gram than gold. Taking advantage of semiconductor solutions, high efficiency cathodes can be fabricated at a fraction of the cost with multiple catalysts applied during cathode fabrication to take advantage of preferential optimization of reaction chemistry. Such solution take advantage of the capacity to fabricate multiple units in single runs using less expensive active metal catalytic constructs.
(43) The present invention uses a well understood fabrication process. Nanoparticle and other exotic materials require complex and intricate fabrication solutions. Most current processes are new to the market and do not have high volume production adding to the higher costs. Semiconductor fabrication is well understood with millions of wafers produced each year. Fabrication of high density geometrical constructs are the norm in IC fabrication with tools, engineers and factories readily producing material each day. Adapting such a solution to support CO.sub.2 transformation is much simpler than developing exotic materials and processes.
(44) In the present invention, a much wider selection of materials may be utilized. Nanoparticle and CO.sub.2 absorption solutions are only offered in a few materials. Even when new materials do come on-line, techniques for fabrication, high volume production and distribution will be required. IC fabrication supports a diversity of metals, metal-like solutions, metal oxide and other solutions that are easily produced. Multiple materials can be co-deposited for binary, tertiary, and additional solutions of exotic solutions. In the feature sizes capable in IC fabrication, many of these solutions become extremely active compared to their macroscopic counterparts. For example, tin and copper are used in high volumes in IC fabrication for device packaging. Whereas bulk copper and tin are not necessarily great catalytic sources for CO.sub.2 transformation, at micron and submicron scale they become quite active. Even iron, nickel, silver, titanium, etc. becomes a great catalyst for CO.sub.2 transformation.
(45) The present invention provides selective and controlled electrical distribution and selectivity per site. Nanoparticles application involve spraying or gluing the material on a bulk cathode. The entire plate is then activated with electrical bias to form one cathode unit. Individual particles are no longer as active as the original nano-solution. In the present invention utilizing semiconductor fabrication solution, electrical bias may be routed to individual structures, groups of structures, or a solid plane/layer. Such control means each structure sees the same electrical potential. Such fabrication solutions also support direct interaction of contactor to take advantage of the electrochemical and solid state physics. Seebeck, photovoltaic, galvanic, etc. are all means of generating electrical potential. This is helpful as changing the potential changes the output gas. Even though a given voltage might be applied at the point of contract, across the wafer that number can change resulting in a great distribution of current/voltage density. As simple as changing the conductor path (wiring), each feature can be controlled. Other techniques such as daisy chains, parallel connectivity and changing metal conductor can improve control. Electrochemical reduction of carbon dioxide producing chemicals or fuels, converting carbon dioxide (CO.sub.2) to organic feedstocks such as formic acid (HCOOH), carbon monoxide (CO), methane (CH4), ethylene (C2H4) and ethanol (C2H5OH) are possible with the correct catalytic plates. Among the more selective metallic catalysts in this field are tin for formic acid, silver for carbon monoxide and copper for methane, ethylene, or ethanol. Methanol, propanol, and 1-butanol have also been produced via CO.sub.2 electrochemical reduction, albeit in small quantities. Examples of electrochemical reduction of carbon dioxide reduced to carbon monoxide using a zinc cathode demonstrate the broad possibilities.
(46) The present invention also provides for selective transformation of gases by controlled selectivity of individual catalytic structures. As discussed above, changing the bias on a structure results in a different output material or even no material. Control on electrical bias helps selectivity and purity of output materials. Metals such as palladium also support controlled filtering of H2. Depending on the metal, a more efficient process may be designed. For example, whereas traditional electrolysis uses platinum for both cathode and anode for all gas production, metals may be selected that can be targeted towards optimum gas generation and system electrical efficiency.
(47) U.S. Pat. No. 11,359,296 and U.S. patent application Ser. No. 17/123,416 describes the manufacture, design, and constructs of 3D electrode embodiments. The present invention provides different applications of these cathodes and anodes with 3D structures using such features as pillars, balls and/or vias. These features allow for the conversion of CO.sub.2 into multiple materials, such as CO, ethanol, formic acid, green hydrogen, precursor, etc. These materials can also be recombined in a Fischer-Tropsch (FT) process to generate longer chain carbon based materials such as kerosene, gasoline, jet fuel, up to and including plastics; even electricity and energy are possible. Details and suggested applications are described below. Such 3D electrode systems can also replace catalytic converter embodiments converting NO.sub.x and SO.sub.x similar to current palladium coated converters.
(48) Catalytic cathode conversion solutions for multiple applications may be generally grouped into two areas where process moisture level is the key instrumental factor. Systems that are water intense, such that a liquid water like electrolysis setup using carbonic acid is one path and the other where lower levels of water such as a vapor, misting, steam and even the ambient water levels in air is the counter approach; it is possible that a direct air delivery with near zero to no water is possible even using a different carrier medium instead of an aqueous approach.
(49) In the present invention, a moisture intensive capture system is utilized. Existing moisture intensive capture systems utilize a process similar to liquid water electrolysis setups. CO.sub.2 is dissolved or captured in liquid water system to make carbonic acid. A cathode and anode pair can be used to generate select materials at either electrode with the cathode a primary target in CO.sub.2 repurposing. Industrial sprays systems, existing bodies of water or incorporation bubbling CO.sub.2 solutions are natural and man-made sources of carbonic acid. Separation mechanisms for O.sub.2, H.sub.2, and hydrocarbons are determined at the electrode potentials for various uses and applications. Hyperactive catalyst, with or without solid state energy harvesting, might also eliminate the need for electrical bias and/or aqueous carriers in some applications. In other embodiments, a carrier other than water might also be utilized.
(50) In higher water load CO.sub.2 systems, examples of CO.sub.2 conversion to useful materials with the correct catalyst provide a baseline approach. In one embodiment, fabrication of an underwater breathing apparatus that runs on a battery, or solid state power, where ocean water containing dissolved CO.sub.2 may generate O.sub.2 and H.sub.2. The O.sub.2 can be consumed for breathing and the H.sub.2 can be channeled for fuel cell or battery power with hydrocarbons. In another embodiment, the reduction and removal of CO.sub.2 from oceans to reestablish and balance pH to safe levels while providing valued resources such as hydrocarbons, H.sub.2 and bio precursors may be achieved. Generating useful materials from water sources, fresh and salt, with reductions in power and infrastructure is an economically desirable route. In still another embodiment of the present invention, the filtration of materials, such as blood, with the appropriate via sizes and in some cases, coatings, to kill or catalyze materials may be achieved. Copper and silver are good examples of such medical solutions. In another embodiment, reactive in-line and recirculating processes are utilized for possibly building a CO.sub.2 engine.
(51) In one medical embodiment, controlled vias sizes support filtering of blood in applications such as dialysis or other medical applications. The vias may also be coated with metals such as silver and copper that have antimicrobial properties to kill pathogens that pass through the filters. The filters can also block pathogen cells that might be larger than normal cells from passing through a via array or over pillar constructs. A thin 3D metal film has also been constructed using techniques to initially hold the film during processing with or with the film in the final application. In another embodiment for PEM/AEM batteries, an electrolyte with controlled membrane separating electron/proton transport to use thin glass membrane, plugged or unplugged vias, is utilized as a battery. Existing solutions are polymer electrolyte membranes (PEM), using gels, that are not as durable or can carry the duty, density or life that is needed for next generation solutions. A membrane of processed glass or a mesh polymer membranes will have a much higher density approach. Electric Vehicles (EVs) and other membrane requirements can be exceeded including CO.sub.2 systems used in NASA missions. Currently, for ocean revitalization, carbonates are converted to process materials for CO.sub.2 generation in an ineffective cost effective approach. Carbonates can be inexpensively found for less that $20 per ton. In the present invention, ocean water is converted to hydrocarbons and blue hydrogen. Select durable metals, such as titanium, can be used as cathodes in aggressive ocean systems. Large plate metal cathodes are not cost effective options with existing approaches. The present invention may also be used in providing decentralized energy. Working with CO.sub.2 spritzer systems to supply fuel to homes, business and communities that have access to water can supply their own fuel. CO.sub.2 can also be stored from a DAC system to make carbonic acid and a home energy solution.
(52) In still another embodiment, the present invention may be a CO.sub.2 engine. It is possible to make carbonate so an engine can be made to run on hard fresh water or ocean water. By bubbling CO.sub.2 into water, carbonic acid can be produced. If a power source is supplied, CO.sub.2 may be split into fuel. Burning the CO.sub.2 in an engine can produce heat that then can be used to generate electricity from a solid state solution such as Peltier, Seebeck, etc. solutions. Electricity can also be provided from an additional battery or solid state solar cell. Such a system could also replace the catalytic converter to change CO.sub.2 into fuel that can be burned. It is also possible that the correct catalyst, such as the existing palladium, can be used to convert NO.sub.x and SO.sub.x to reduce pollution. This may result in reduced auto/truck exhaust where CO.sub.2 can be upstream or downstream of exhaust gases to convert to usable materials. A small combustion engine may be used as a converter and even downstream to convert materials beyond CO.sub.2.
(53) Direct air capture systems do not necessitate the heavy water load of a baseline electrolysis like carbonic acid process, although both light and an aqueous free system may be employed. A goal in this approach is to have a method and system of reduced water load using pillars or via systems that can repurpose CO.sub.2 with reduced water loads. It should also be understood that these 3D structures may also be used to transform other materials such as SOx and NOx into materials simply by adding palladium as a catalyst similar to existing catalytic converters in cars. Such a system may not be limited to high or low material flow, such as a liquid based water intensive electrolysis like solution. The CO.sub.2 transport, as needed to capture exhaust CO.sub.2, may utilize a vapor system where CO.sub.2 is in a gel, water, or water-less carrier (mist, steam, fumes, etc.), that does not require a full electrolytic-like process. The CO.sub.2 may just be the CO.sub.2 in ambient air with a higher surface area catalyst. Existing CO.sub.2 repurposing solutions do still require electrode bias to separate and transform CO.sub.2 into various components from the carriers. Passing over pillars or through vias for reactivity, either process is an improvement over films and/or gels that capture and release CO.sub.2 or reactive nanoparticle cathodes that are exotic and costly. In the present invention, such a system is also much more flexible in applications where a CO.sub.2 dissolved in a liquid water carrier may be more extensive in cost (fabrication, setup, OEM design, weight limitations, etc.). The direct air approach supports installation in existing structures, stand-alone structures, and support of new designs where low-carbon footprint is critical. Exhaust control on smokestack and similar cooling tower approaches, such as inline systems, can capture and repurpose the exhaust into useful material or simply sequester. A pre-filter may be required to grab larger particles such as soot or debris leaving CO.sub.2 reactive materials for the cathodes. In another application, an air scrubber may be attached to a solar or other energy source to continuously convert CO.sub.2 into usable materials. In another embodiment, direct air capture and wet solutions support recycled CO.sub.2 in a closed loop system for efficient recycling of CO.sub.2. Similar to an air scrubber, in another embodiment of the present invention, an in-line 3D cathode embodiment may use the natural vortex/draft where the tall building creates a flow that forces the CO.sub.2 through a TGV cathode, although pillars may be utilized, a TGV cathode provides a more effective and efficient solution in area, materials and size.
(54) There are several applications for use of the direct air capture system, possibly hybridized with a wet approach. One such application is utilized with cement production. Cement is the second largest source of expended CO.sub.2. Almost an equal amount of CO.sub.2 is generated processing calcium carbonate to lime (CaO) to cement. CO.sub.2 is also generated in the kiln burners. Here the CO.sub.2 ratio to air concentrated more than most applications, so use of the direct air capture system can be more efficient than a backup water heavy solution. The CO2, already captures, could also be then sequestered to support conversion of a carbonic acid bath to produce an alcohol for fuel or other transformed materials, depending on the need. In addition, the hybrid direct air capture (DAC) or DAC/H2O system may be utilized with green and blue hydrogen. Green and blue hydrogen is fabricated by water electrolysis in one approach but also fabricated by reacting methane with water in high temperature environments. This reaction of methane and water to produce hydrogen also generates a large amount of CO.sub.2. In a blue hydrogen process, the CO.sub.2 is converted to a useful product. 3D catalytic solutions may change that blue process to a bluer process by transforming the CO.sub.2 in simple hydrocarbons and CO or using a FT process to make longer chain hydrocarbons. A palladium (Pd) thin film cap may be positioned on top of via to filtered hydrogen. In another application, the direct air capture system may be utilized with steel. Coke is a key material used in the manufacture of steel. Coke is basically pure carbon formed from bituminous coal. Burning coke generates CO.sub.2 exhaust gas. In one embodiment, a catalyst plate converts the CO.sub.2 to biomaterials, carbon monoxide and hydrocarbons that may be sold, incorporated in a feedback loop, or simply processed to other longer chain carbon solutions. The excess heat from a steel process helps provide the energy for a FT process where heat, H2O and hydrocarbons or CO form longer chain materials. In another application, the present invention may be utilized in coal. Coal is a, critical, readily available low cost energy, and fuel source. Burning of coal, almost pure carbon, results directly in CO.sub.2 as carbon with carbon combustion. Many applications have sought cleaner alternatives to coal usage. In this application, the dirtier particulate matter of coal consumption is eliminated, and the high concentration of CO.sub.2 is then directly burned in a CO.sub.2 catalytic system. CO.sub.2 is then repurposed into other fuels and solutions using a stand-alone DAC or DAC/H2O or aqueous approach as a result of the higher concentrations of CO2. The present invention may be utilized in space travel. CO.sub.2 should be reprocessed efficiently. Current systems capture and then release CO.sub.2 in gels and other materials to prevent CO.sub.2 buildup in breathable atmosphere in space vehicles. For longer term space missions, it might be possible to have plant based solutions to recirculate the air. But a CO.sub.2 system could also supply fuel and energy (Seebeck, PV, galvanic, etc.). In particular, the rocks on the moon and other extraterrestrial bodies where structures are to be fabricated might be carbonate materials. Fabrication to cement and structures would generate that same CO.sub.2 that could then be used as fuel for rockets, for heating and for hydrocarbon based systems.
(55) The present invention may also be used in energy production. Many aspects of energy production are centralized with distribution nodes adding to CO.sub.2. In many areas of the world, people also cannot afford energy that might be produced in their country. Energy production that is decentralized and economical would lead to lower cost, cleaner fuels, and improvements in global CO.sub.2 level when forests are not cut and burned, coal is not consumed, and CO.sub.2 can be pulled from air and industry for hydrocarbon generation. In one embodiment, with in-house and on-house constant fuel generation, CO.sub.2 may be removed using renewable energy, such as solar or small wind turbines and a simple CO.sub.2 soda spritzer-like system. Furthermore, a decentralized energy strategy may be implemented by utilizing a CO.sub.2 spritzer system embodiment to supply fuel to homes, businesses and communities that have access to water, even atmospheric water, to supply their own fuel. Locations that are on oceans or other larger bodies of water may use a carbonic acid electrolysis system to generate fuel, water and base materials for consumption or sale. In another embodiment, an FT engine may be used to recombine separated material to formulate kerosene, jet fuel and others. The alcohol levels in the aqueous could also be burned once the alcohol concentration is high enough to support combustion, typically greater than 40%. This proof can be acquired by distillation. Additionally, existing CO.sub.2 transport pipelines where 3D cathode filling stations may be placed in-line to transform the CO.sub.2 into useful biomaterials and/or fuel. The above mentioned applications and embodiments are all possible with a 3D cathode CO.sub.2 regenerative system. The coated catalytic through glass and pillar plates make all these embodiments possible.
(56) When a carbonic acid bath is transformed to CO and H.sub.2, that material can then be converted to longer chain hydrocarbons in a FT process. Those transformed materials can also be produced using externally supplied power or using solid state solutions. The resulting gases can then be used to form a combustion-based engine. The hydrogen can also be diverted to make a fuel cell or rechargeable battery. By having a fine mesh that is coated, the 3D structures behave as a PEM/GEM mesh where the size of the small vias trap air and prevent fluid transfer; additional anisotropic coatings can be used as well. The metallic coatings support the movement of ions/electrons back and forth for the battery/fuel cell. Breaking those bubble has the opposite effect supporting strong capillary action for material movement. A gel-based electrolyte will not travel past the small vias whereas the electrolyte charge will transverse.
(57) In another application, NASA scientist are suggesting using rocks on these planets to make cement for structures. That same process for cement production yields CO.sub.2 which could be transformed to hydrocarbons for fuel or even used in a GEM fuel cell.
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(59) Utilizing a cooling structure, such as a tower 10 provides for direct air capture and transformation using natural draft cooling within the tower. A cooling tower supports a natural flow of air without the need of fans or forced flow. The height of a tower is directly proportional to the air movement. A larger tower has more air movement as noted in an elevator. A tall building has a much stronger movement of air compared to a building with fewer floors. In the cooling towers 10 of
(60) Air flow in buildings and structures such as towers is complex, time dependent and multi-directional. The understanding of air flow through and within a structure is based on the requirement for continuity of mass and momentum caused by wind forces, thermal effects (stack action) and forces associated with the operation of mechanical cooling, heating, exhaust, and other ventilation systems. Pressure differential, temperature and design all play a part. Such structures include the following: buildings where the natural draft could be used to capture, transform and repurpose dry or moisture laden air movement in a cost and environmentally efficient manner; towers that have cooling solutions for industrial/manufacturing, power generation and general cooling for homes, factories and high rise structures; direct air capture towers, standalone, for green and blue energy generation of hydrocarbons/CO with CO.sub.2 reduction; and ocean stabilization by removing CO.sub.2 from ocean water. CO.sub.2 dissolved in ocean and terrestrial water sources are sources of carbonic acid reduction with more efficient 3D structured cathodes.
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(74) There are several examples of filtration applications using TGV cathodes. Normal human red blood cells have a biconcave shape having a diameter of approximately 7-8 microns and a thickness of approximately 2.5 microns. Smaller or larger sizes of cells may indicate medical conditions, such as cancer. Additionally, algae filtration may be utilized for renewable fuels. TGV cathodes may also be used for general filtration in many fields as well as electrophoresis.
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(2n+1)H2+nCO.fwdarw.CnH2n+2+nH2O
where n is typically 10-20. The formation of methane (n=1) is unwanted. Most of the alkanes produced tend to be straight-chain, suitable as diesel fuel. In addition to alkane formation, competing reactions give small amounts of alkenes, as well as alcohols and other oxygenated hydrocarbons. The FT reaction is a highly exothermic reaction due to a standard reaction enthalpy (H) of 165 KJ/mol CO combined. In addition, electrodes as described above may be inserted in the intake area above entry point 106 with a power sources. In this system, the cathode side generates CO/H.sub.2/CH.sub.4 while the anode generates oxygen.
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(85) The present invention provides a CO.sub.2 capture and sequestration system which uses semiconductor microfabrication techniques to fabricate high density catalytic features on or within a substrate, a transposer. In addition, the present invention provides various distinct embodiments and applications for use in various industries.
(86) Thus, the present invention has been described herein with reference to a particular embodiment for a particular application. Those having ordinary skill in the art and access to the present teachings will recognize additional modifications, applications, and embodiments within the scope thereof.