CN115263478A - Carbon fixation, industrial waste gas purification and waste heat power generation combined system based on liquid air - Google Patents
Carbon fixation, industrial waste gas purification and waste heat power generation combined system based on liquid air Download PDFInfo
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- CN115263478A CN115263478A CN202210863430.0A CN202210863430A CN115263478A CN 115263478 A CN115263478 A CN 115263478A CN 202210863430 A CN202210863430 A CN 202210863430A CN 115263478 A CN115263478 A CN 115263478A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/69—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side without movement with respect to the filter elements, e.g. fixed nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a carbon fixation, industrial waste gas purification and waste heat power generation combined system based on liquid air, which mainly comprises a liquid inlet control valve, a liquid air storage tank, a liquid pump, a multistage heat exchanger, a turbine generator, a smoke filter, a dryer, an air pump, a plurality of groups of gas-liquid separators, a nitrogen oxide collecting container, a sulfur oxide collecting container, a mesh screen, a dry ice collecting container and the like. Liquid air exchanges heat with high-temperature industrial waste gas step by step through a heat exchanger, and the liquid air absorbs heat and then is heated and expanded, and then is input into a turbine generator to push a turbine to rotate and generate power. High-temperature industrial waste gas is subjected to solid filtration of smoke dust and dehydration by a drier and then pumped into a heat exchanger, liquid nitrogen dioxide and sulfur dioxide are successively obtained after liquid air is cooled step by step, and solid carbon dioxide can be obtained by desublimation after continuous cooling. The exhaust gas passing through the mesh screen has obvious cold quantity and can be further used as a refrigerant for cooling other working media.
Description
Technical Field
The invention belongs to the field of novel energy storage, power generation, environmental protection and emission reduction application, and particularly relates to a carbon fixation, industrial waste gas purification and waste heat power generation combined system based on liquid air.
Background
Industrial waste gas emission is an important environmental problem faced in numerous fields such as chemical production, power generation, transportation at present, because the waste gas contains a large amount of carbon dioxide, nitrogen oxide, sulfur oxide and a plurality of components harmful to the environment such as smoke dust particles, the direct emission can aggravate the environmental problem and harm the human health, and the waste gas often has a higher temperature, and the influence of greenhouse effect can be aggravated, therefore the treatment and the innocent measure to the waste gas are very important, mainly include several parts such as filtration collection of smoke dust solid, poisonous and harmful gas removal and carbon dioxide's entrapment work. The smoke dust solid can be filtered and collected by a filter; according to different types of toxic and harmful gases, common treatment methods comprise activated carbon adsorption, direct combustion, catalytic combustion, physical or chemical absorption, plasma decomposition and the like; common capture methods for carbon dioxide include chemical absorption, physical absorption, adsorption, membrane separation, chemical bond separation, and the like. At present, related applications are widely applied in actual production, but the problems of complex system structure, high working cost, high energy consumption and the like exist at the same time. If the temperature of the waste gas is reduced step by adopting a cryogenic method, the temperature of the waste gas reaches the boiling points of various harmful gases and the freezing point of carbon dioxide in turn, and the waste gas can be separated from the waste gas step by step in a phase change mode. The residual low-temperature exhaust gas after separation still contains remarkable cold quantity, and can be used as a refrigerant for other application scenes needing cooling.
Liquid air is an important industrial product, the temperature of the liquid air is generally below 192 ℃, a large amount of heat can be absorbed in the gasification process, the liquid air has a remarkable refrigerating effect, meanwhile, the pressure is rapidly increased in the expansion process after heat absorption, the liquid air can be used for driving a turbine generator to generate electric energy, the method is called liquid air energy storage, and the heat source condition in the air heat absorption process is an important factor for limiting the working efficiency and the economic benefit of the energy storage system. Considering that industrial waste gas often carries a large amount of waste heat, the liquid air is used for cooling the high-heat waste gas, so that heat required by expansion power generation can be recovered, and low-cost power generation is realized while the temperature of the waste gas is reduced. The system can simultaneously realize the aims of removing harmful pollutants in the waste gas, fixing and capturing carbon dioxide, recovering and reducing the emission of industrial waste heat, storing energy and expanding power generation by liquid air and the like during the operation, and has good ecological and economic benefits and wide application prospect.
Disclosure of Invention
In view of the above, the invention provides a liquid air-based carbon sequestration, industrial waste gas purification and cogeneration combined system, which has the following specific technical scheme:
a combined system for carbon sequestration, industrial waste gas purification and waste heat power generation based on liquid air comprises a liquid inlet control valve, a liquid-air storage tank, a liquid pump, a first heat exchanger, a second heat exchanger, a third heat exchanger, a turbine generator, a smoke filter, a dryer, an air pump, a first gas-liquid separator, a nitrogen oxide collecting container, a second gas-liquid separator, a sulfur oxide collecting container, a mesh screen, a dry ice collecting container and a fourth heat exchanger,
the liquid air flow path is composed of a liquid inlet control valve, a liquid air storage tank, a liquid pump, a first heat exchanger, a second heat exchanger, a third heat exchanger and a turbine generator; liquid air enters a liquid-air storage tank through a liquid inlet control valve, an outlet of the liquid-air storage tank is connected with an inlet of a liquid pump, an outlet of the liquid pump is connected with a cold-end inlet of a first heat exchanger, a cold-end outlet of the first heat exchanger is connected with a cold-end inlet of a second heat exchanger, a cold-end outlet of the second heat exchanger is connected with a cold-end inlet of a third heat exchanger, and a cold-end outlet of the third heat exchanger is connected with an inlet of a turbine generator;
the waste gas flow path is composed of a smoke filter, a dryer, an air pump, a heat exchanger III, a gas-liquid separator I, a nitrogen oxide collecting container, a heat exchanger II, a gas-liquid separator II, a sulfur oxide collecting container, a heat exchanger I, a mesh screen, a dry ice collecting container and a heat exchanger IV.
The system can simultaneously remove the smoke dust solids and main toxic and harmful gases in the industrial waste gas, capture and fix carbon dioxide, reduce the discharge temperature of the waste gas and realize liquid air expansion power generation.
Preferably, the type of the first heat exchanger, the second heat exchanger and the third heat exchanger is a double-pipe heat exchanger or a plate-fin heat exchanger.
Preferably, the industrial waste gas after impurity removal, carbon fixation and cold energy recovery is directly discharged from a cold end outlet of the heat exchanger IV.
Preferably, the system can flexibly adjust the refrigeration temperature interval and the stages of the heat exchanger and the gas-liquid separator according to the type of the waste gas which needs to be treated actually so as to separate and remove impurity gases with various boiling points.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of a combined system of carbon sequestration, industrial waste gas purification and cogeneration based on liquid air according to the present invention.
Reference numerals:
the method comprises the following steps of 1-liquid inlet control valve, 2-liquid air storage tank, 3-liquid pump, 4-heat exchanger I, 5-heat exchanger II, 6-heat exchanger III, 7-turbine generator, 8-smoke dust filter, 9-dryer, 10-air pump, 11-gas-liquid separator I, 12-nitrogen oxide collecting container, 13-gas-liquid separator II, 14-sulfur oxide collecting container, 15-mesh sieve, 16-dry ice collecting container and 17-heat exchanger IV.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example (b):
as shown in fig. 1, a combined system for carbon sequestration, industrial waste gas purification and cogeneration based on liquid air according to an embodiment of the present invention includes a liquid inlet control valve 1, a liquid air storage tank 2, a liquid pump 3, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 6, a turbine generator 7, a soot filter 8, a dryer 9, an air pump 10, a first gas-liquid separator 11, a nitrogen oxide collection container 12, a second gas-liquid separator 13, a sulfur oxide collection container 14, a mesh screen 15, a dry ice collection container 16, and a fourth heat exchanger 17.
The liquid air flow path is composed of a liquid inlet control valve 1, a liquid air storage tank 2, a liquid pump 3, a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 6 and a turbine generator 7. Liquid air prepared by the liquefaction procedure enters a liquid air storage tank 2 through a liquid inlet control valve 1, an outlet of the liquid air storage tank 2 is connected with an inlet of a liquid pump 3, an outlet of the liquid pump 3 is connected with a cold end inlet of a heat exchanger I4, a cold end outlet of the heat exchanger I4 is connected with a cold end inlet of a heat exchanger II 5, a cold end outlet of the heat exchanger II 5 is connected with a cold end inlet of a heat exchanger III 6, and a cold end outlet of the heat exchanger III 6 is connected with an inlet of a turbine generator 7.
The exhaust gas flow path is composed of a smoke filter 8, a dryer 9, an air pump 10, a heat exchanger III 6, a gas-liquid separator I11, a nitrogen oxide collecting container 12, a heat exchanger II 5, a gas-liquid separator II 13, a sulfur oxide collecting container 14, a heat exchanger I4, a mesh screen 15, a dry ice collecting container 16 and a heat exchanger IV 17. The waste gas firstly passes through a smoke filter 8, an outlet of the smoke filter 8 is connected with an inlet of a dryer 9, an outlet of the dryer 9 is connected with an inlet of an air pump 10, an outlet of the air pump 10 is connected with a hot end inlet of a heat exchanger III 6, a hot end outlet of the heat exchanger III 6 is connected with an inlet of a gas-liquid separator I11, a liquid phase outlet of the gas-liquid separator I11 is connected with a nitrogen oxide collecting container 12, a gas phase outlet of the gas-liquid separator I11 is connected with a hot end inlet of a heat exchanger II 5, a hot end outlet of the heat exchanger II 5 is connected with an inlet of a gas-liquid separator II 13, a liquid phase outlet of the gas-liquid separator II 13 is connected with a sulfur oxide collecting container 14, a gas phase outlet of the gas-liquid separator II 13 is connected with a hot end inlet of a heat exchanger I4, a hot end outlet of the heat exchanger I4 is connected with an inlet of a mesh screen 15, an outlet of the mesh screen 15 close to one end of the heat exchanger I4 is connected with a dry ice collecting container 16, an outlet far away from one end of the heat exchanger I4 is connected with a cold end inlet of a heat exchanger IV 17, and other working media needing cooling are input by the hot end inlet of the heat exchanger IV 17 (shown in a thick line on the upper side in figure 1 for heat exchange and cooling.
The pipelines involved in the invention have good pressure resistance and heat insulation performance, and can bear long-time work under high-pressure and low-temperature conditions.
Further, the heat exchanger used in the present invention may use, and is not limited to, a double pipe heat exchanger, a plate fin heat exchanger, and the like.
Meanwhile, the industrial waste gas after impurity removal, carbon fixation and cold quantity recovery can be directly discharged from a cold end outlet of the heat exchanger IV 17, and the requirement of environmental protection indexes is met.
Industrial waste gases are often rich in a variety of impurities such as soot solids, water vapor, nitrogen oxides, sulfur oxides, carbon oxides, and hydrocarbon combustibles. The embodiment of the invention is represented by common categories, nitrogen oxide is mainly nitrogen dioxide, sulfur oxide is mainly sulfur dioxide, and combustible impurities are removed in advance through measures such as oxygen-enriched combustion and the like. Under the condition of normal pressure, the boiling point of nitrogen dioxide is 21 ℃, the melting point is-11 ℃, the boiling point of sulfur dioxide is-10 ℃, the melting point is-75.5 ℃, carbon dioxide can only be desublimated, the melting point is-78.5 ℃, by taking the concept of fractionation as reference, after the waste gas is gradually cooled to be below the boiling point of each component, liquid impurities are discharged through a gas-liquid separator, and the solid impurities are solidified in the last step to obtain a dry ice product.
When the system operates, liquid air prepared in the liquefaction process is input into a liquid air storage tank 2 through a liquid inlet control valve 1 to be temporarily stored, then is pressurized through a liquid pump 3, and then sequentially passes through a heat exchanger I4, a heat exchanger II 5 and a heat exchanger III 6 to exchange heat with high-temperature waste gas input from the other side step by step, the liquid air is heated and expanded and increased in pressure after absorbing heat, the air is in a high-temperature and high-pressure state when being output by the heat exchanger III 6 and then is input into a turbine generator 7 to push a turbine to rotate for power generation, and then is discharged to the atmosphere or enters an air liquefaction circulating system again.
The method comprises the following steps that high-temperature industrial waste gas is filtered to remove contained solid impurities through a smoke filter 8, then water is removed through a dryer 9, the dried waste gas is pressurized to 3-4bar through an air pump 10, then primary cooling is carried out through a heat exchanger III 6, the temperature is reduced to 15 ℃, then the dried waste gas enters a gas-liquid separator I11, and liquid-phase nitrogen dioxide obtained through separation is discharged; the gas phase is output to enter a second heat exchanger 5 to carry out second-stage cooling, the temperature is reduced to-15 ℃, then the gas phase enters a second gas-liquid separator 13, and sulfur dioxide in a liquid phase obtained by separation is discharged; and (3) outputting the gas phase into a first heat exchanger (4) for third-stage cooling, obtaining solid carbon dioxide (dry ice) after the temperature is reduced to-80 ℃, and sorting the dry ice into a dry ice collecting container (16) for storage by utilizing the blowing of the pressure of the waste gas and the filtering action of a mesh screen (15). The exhaust gas passing through the mesh screen 15 carries significant cold energy due to extremely low temperature, and can be further used as a refrigerant for cooling other working mediums.
The system can flexibly adjust the refrigeration temperature interval and the stages of the heat exchanger and the gas-liquid separator according to the type of the waste gas to be treated actually so as to separate and remove impurity gases with various boiling points.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A carbon sequestration, industrial waste gas purification and waste heat power generation combined system based on liquid air is characterized by comprising a liquid inlet control valve (1), a liquid air storage tank (2), a liquid pump (3), a first heat exchanger (4), a second heat exchanger (5), a third heat exchanger (6), a turbine generator (7), a smoke filter (8), a dryer (9), an air pump (10), a first gas-liquid separator (11), a nitrogen oxide collecting container (12), a second gas-liquid separator (13), a sulfur oxide collecting container (14), a mesh sieve (15), a dry ice collecting container (16) and a fourth heat exchanger (17), wherein,
the liquid air flow route is composed of a liquid inlet control valve (1), a liquid air storage tank (2), a liquid pump (3), a first heat exchanger (4), a second heat exchanger (5), a third heat exchanger (6) and a turbine generator (7); liquid air enters a liquid air storage tank (2) through a liquid inlet control valve (1), an outlet of the liquid air storage tank (2) is connected with an inlet of a liquid pump (3), an outlet of the liquid pump (3) is connected with a cold end inlet of a first heat exchanger (4), a cold end outlet of the first heat exchanger (4) is connected with a cold end inlet of a second heat exchanger (5), a cold end outlet of the second heat exchanger (5) is connected with a cold end inlet of a third heat exchanger (6), and a cold end outlet of the third heat exchanger (6) is connected with an inlet of a turbine generator (7);
the waste gas flow path is composed of a smoke filter (8), a dryer (9), an air pump (10), a heat exchanger III (6), a gas-liquid separator I (11), a nitrogen oxide collecting container (12), a heat exchanger II (5), a gas-liquid separator II (13), a sulfur oxide collecting container (14), a heat exchanger I (4), a mesh sieve (15), a dry ice collecting container (16) and a heat exchanger IV (17), waste gas firstly passes through the smoke filter (8), the outlet of the smoke filter (8) is connected with the inlet of the dryer (9), the outlet of the dryer (9) is connected with the inlet of the air pump (10), the outlet of the air pump (10) is connected with the hot end inlet of the heat exchanger III (6), the hot end outlet of the heat exchanger III (6) is connected with the inlet of the gas-liquid separator I (11), the liquid phase outlet of the gas-liquid separator I (11) is connected with the nitrogen oxide collecting container (12), the gas phase outlet of the gas-liquid separator I (11) is connected with the hot end inlet of the heat exchanger II (5), the outlet of the heat exchanger II (5) is connected with the inlet of the gas-liquid separator II (13), the hot end outlet of the heat exchanger II (14) is connected with the hot end inlet of the heat exchanger III) of the heat exchanger III, an outlet of the meshed screen (15) close to one end of the first heat exchanger (4) is connected with the dry ice collecting container (16), an outlet far away from one end of the first heat exchanger (4) is connected with a cold end inlet of the fourth heat exchanger (17), and other working media needing cooling are input from a hot end inlet of the fourth heat exchanger (17) to be subjected to heat exchange and cooling.
2. The combined liquid air-based carbon sequestration, industrial waste gas purification and cogeneration system of claim 1, wherein the types of the first heat exchanger (4), the second heat exchanger (5) and the third heat exchanger (6) are double-pipe heat exchangers or plate-fin heat exchangers.
3. The liquid air-based carbon sequestration, industrial waste gas purification and cogeneration combined system according to claim 1, wherein the industrial waste gas after impurity removal, carbon sequestration and cold recovery is directly discharged from a cold end outlet of the heat exchanger four (17).
4. The combined liquid air-based carbon sequestration, industrial waste gas purification and cogeneration system of claim 1, wherein the system can flexibly adjust the refrigeration temperature range and the number of stages of the heat exchanger and the gas-liquid separator according to the type of waste gas to be treated in practice, so as to separate and remove impurity gases with various boiling points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210863430.0A CN115263478A (en) | 2022-07-20 | 2022-07-20 | Carbon fixation, industrial waste gas purification and waste heat power generation combined system based on liquid air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210863430.0A CN115263478A (en) | 2022-07-20 | 2022-07-20 | Carbon fixation, industrial waste gas purification and waste heat power generation combined system based on liquid air |
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| CN115263478A true CN115263478A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210863430.0A Pending CN115263478A (en) | 2022-07-20 | 2022-07-20 | Carbon fixation, industrial waste gas purification and waste heat power generation combined system based on liquid air |
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- 2022-07-20 CN CN202210863430.0A patent/CN115263478A/en active Pending
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