CN115382339A - Supersonic carbon capture energy recovery device and system for industrial hydrogen production - Google Patents

Supersonic carbon capture energy recovery device and system for industrial hydrogen production Download PDF

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CN115382339A
CN115382339A CN202210880917.XA CN202210880917A CN115382339A CN 115382339 A CN115382339 A CN 115382339A CN 202210880917 A CN202210880917 A CN 202210880917A CN 115382339 A CN115382339 A CN 115382339A
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gas
carbon capture
energy recovery
supersonic
inlet
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CN115382339B (en
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蒋文明
韩晨玉
刘杨
董涛
赵文学
胡展昭
宋茂森
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China University of Petroleum East China
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China University of Petroleum East China
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • 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
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
    • C01B3/506—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification at low temperatures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
    • C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/08—Separating gaseous impurities from gases or gaseous mixtures or from liquefied gases or liquefied gaseous mixtures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/80—Organic bases or salts

Abstract

The invention relates to the technical field of carbon dioxide capture, and particularly discloses a supersonic carbon capture energy recovery device for industrial hydrogen production. Comprises a vertical gas-liquid cyclone separator and a Laval nozzle. The vertical gas-liquid cyclone separator comprises a cylinder, an inlet pipe, a rotary gas-liquid separation component, a gas phase outlet pipe and a liquid phase outlet pipe. The outlet of the inlet pipe is communicated with the inlet of the rotary gas-liquid separation assembly, and the inlet of the gas phase outlet pipe is communicated with the gas outlet of the rotary gas-liquid separation assembly. The outlet of the Laval nozzle is connected with the inlet of the inlet pipe, and the outlet of the inlet pipe is provided with an impeller for energy recovery. And a refrigerating coil is arranged below the rotary gas-liquid separation assembly and is connected into a refrigerating circulation system. The invention also discloses a carbon capture system. The invention effectively overcomes the defects of the traditional carbon trapping technology of the hydrogen-rich stream, realizes the complete removal of carbon dioxide and has low energy consumption.

Description

Supersonic carbon capture energy recovery device and system for industrial hydrogen production
Technical Field
The invention relates to the technical field of carbon dioxide capture, in particular to a supersonic carbon capture energy recovery device and a supersonic carbon capture energy recovery system for industrial hydrogen production.
Background
The hydrogen production by fossil fuel (coal hydrogen production, natural gas reforming hydrogen production and petroleum hydrogen production) is a main production mode of hydrogen raw material gas, and accounts for 72-96% of the total output of the hydrogen raw material gas, and the hydrogen production mode enables the hydrogen raw material gas to contain a large amount of carbon dioxide impurities. In order to prevent the greenhouse effect caused by the secondary emission of carbon dioxide and effectively utilize hydrogen energy, the capture and removal of the carbon dioxide in the hydrogen-rich stream are important.
The traditional hydrogen-rich stream carbon capture technology mainly comprises a pressure swing adsorption method, a low-temperature separation method, a solvent absorption method and a membrane separation method (a metal palladium membrane diffusion method, a polymer membrane separation method, porous inorganic membrane separation and MOF membrane separation), but all of the methods have certain defects. For example, the pressure swing adsorption method is widely used for purification processes after preparation of various crude hydrogen such as methanol cracking, coke oven gas and the like, and has large occupied area and high investment cost. The cryogenic separation method is suitable for large-scale hydrogen purification industry with low hydrogen content, and requires a compressor for continuous cooling, so that the energy consumption is high and the temperature control operation difficulty is high. The solvent absorption method has a relatively mature process and high carbon dioxide removal rate, but the absorption solution is lossy and the energy consumption of equipment is high.
Disclosure of Invention
The invention aims to provide a supersonic carbon capture energy recovery device for industrial hydrogen production, which effectively overcomes the defects of the traditional hydrogen-rich stream carbon capture technology.
In order to solve the technical problems, the invention adopts the technical scheme that:
the supersonic carbon trapping energy recovering apparatus for industrial hydrogen production includes vertical gas-liquid cyclone separator and Laval nozzle, and the vertical gas-liquid cyclone separator has cylinder, inlet pipe, rotating gas-liquid separating assembly inside the cylinder, gas phase outlet pipe in the upper part of the cylinder and liquid phase outlet pipe in the bottom of the cylinder.
The outlet of the inlet pipe is communicated with the inlet of the rotary gas-liquid separation assembly, and the inlet of the gas phase outlet pipe is communicated with the gas outlet of the rotary gas-liquid separation assembly.
The outlet of the Laval nozzle is connected with the inlet of the inlet pipe, and the outlet of the inlet pipe is provided with an impeller for energy recovery.
And a refrigerating coil is arranged below the rotary gas-liquid separation assembly and is connected into a refrigerating circulation system.
Further, an impeller shaft is arranged on the impeller, penetrates through the cylinder and is connected with a generator at the end part.
Furthermore, the refrigeration cycle system is a propane refrigeration cycle system and comprises a compressor, a heat exchanger and an expansion valve which are sequentially connected, an air outlet pipe of the expansion valve is connected with an air inlet of the refrigeration coil pipe, and an air outlet of the refrigeration coil pipe is connected with an air return pipe of the compressor.
Furthermore, the rotary gas-liquid separation component comprises a vertical cylindrical inner cylinder and a spiral plate positioned in an annular space between the outer side wall of the inner cylinder and the inner side wall of the cylinder, one side of the spiral plate is connected with the outer side wall of the inner cylinder, and the top of the inner cylinder extends to the outer periphery to be connected with the inner side wall of the cylinder.
Furthermore, the left part and the right part of the top of the inner cylinder have a height difference, wherein an arc surface is formed between the higher part and the lower part, two side edges of the arc surface respectively extend outwards vertically to be connected with the inner side wall of the cylinder body, and the arc surface is opposite to the outlet of the inlet pipe; the lower is the start of the helix of the spiral plate and the top end of the lower is located below the inlet of the gas phase outlet pipe.
Further, the generator is connected with the refrigeration cycle system to provide electric energy for the refrigeration cycle system.
Further, the liquid phase outlet pipe is connected with a collecting bottle for collecting condensed carbon dioxide.
The invention also aims to provide a supersonic energy recovery carbon capture system for industrial hydrogen production, which effectively overcomes the defects of the traditional hydrogen-rich stream carbon capture technology.
The supersonic energy recovery carbon capture system for industrial hydrogen production comprises the supersonic carbon capture energy recovery device for industrial hydrogen production and the secondary carbon capture system, wherein the gas phase outlet pipe is connected with the inlet of the secondary carbon capture system.
Further, the secondary carbon capture system is an alcohol amine solvent absorption carbon capture system.
The beneficial technical effects of the invention are as follows:
(1) The supersonic carbon capture energy recovery device is constructed by using the Laval nozzle structure, the energy recovery impeller and the vertical gas-liquid cyclone separator in a matching manner, so that the kinetic energy of supersonic airflow is effectively recovered, and the energy utilization rate is improved; but also realizes the carbon capture of the hydrogen feed gas. In addition, compared with the traditional carbon capture device of hydrogen raw material gas, the supersonic carbon capture energy recovery device has the advantages of simple structure and operation, small equipment volume and investment, large treatment capacity and no solvent loss.
(2) The supersonic carbon capture energy recovery device is matched with the traditional alcohol amine solvent absorption carbon capture system for use, so that the energy consumption is effectively reduced while the carbon dioxide in the hydrogen raw material gas is completely removed, and the solvent loss of a single alcohol amine solvent absorption method is saved by at least 50%.
Drawings
The invention will be further described with reference to the accompanying drawings and detailed description.
Fig. 1 is a cross-sectional view of the supersonic carbon capture energy recovery apparatus of the present invention (the solid arrows in the figure indicate the flow direction of the gas phase and the liquid phase).
FIG. 2 is a perspective view of the supersonic carbon capture energy recovery device of the present invention.
FIG. 3 is a block diagram of the supersonic energy recovery carbon capture system of the present invention.
Detailed Description
As shown in fig. 1 and 2, the supersonic carbon capture energy recovery device for industrial hydrogen production comprises a vertical gas-liquid cyclone separator 1, a laval nozzle 2 and an impeller 3 for energy recovery.
The vertical gas-liquid cyclone separator 1 comprises a cylindrical body 11, a top plate 12, a bottom plate 13, an inlet pipe 14, a rotary gas-liquid separation assembly positioned in the cylindrical body, a gas phase outlet pipe 15 positioned at the upper part of the cylindrical body and a liquid phase outlet pipe 16 positioned at the bottom of the cylindrical body. The outlet of the inlet pipe 14 is communicated with the inlet of the rotary gas-liquid separation assembly, and the inlet of the gas phase outlet pipe 15 is communicated with the gas outlet of the rotary gas-liquid separation assembly.
The rotating gas-liquid separation assembly comprises a vertical cylindrical inner barrel 17 and a spiral plate 18 positioned in an annular space between the outer side wall of the inner barrel and the inner side wall of the barrel. Spiral channels are formed among the inner side wall of the cylinder body 11, the outer side wall of the inner cylinder 17 and the two adjacent circles of spiral plates 18. The inner cylinder 17 is provided with an upper opening and a lower opening, one side of the spiral plate 18 is connected with the outer side wall of the inner cylinder 17, and the top of the inner cylinder 17 extends to the outer periphery to be connected with the inner side wall of the cylinder body 11. The left and right parts of the top of the inner cylinder 17 have a height difference, as shown by points a and B in fig. 1, wherein an arc surface 19 is formed between a higher part a and a lower part B, two side edges of the arc surface 19 respectively extend outwards and vertically to be connected with the inner side wall of the cylinder 11, and the arc surface 19 is opposite to the outlet of the inlet pipe 14. The lower part B is the start of the spiral plate 18 and the top end of the lower part B is located below the inlet of said gas phase outlet pipe 15.
The outlet of the laval nozzle 2 is connected to the inlet of the inlet pipe 14. As shown in figure 1, the front part of the Laval nozzle 2 is contracted from big to small to the middle to a narrow throat, and then the narrow throat is expanded from small to big to the tail part of the nozzle. The pressure of the hydrogen raw material gas can reach 3-6MPa after the hydrogen raw material gas comes out from the well mouth, the hydrogen raw material gas coming out from the well mouth flows into the Laval nozzle 2 under high pressure, the hydrogen raw material gas contracts firstly and then expands, and unbalanced condensation occurs in the expansion process. The speed of the airflow is also changed due to the change of the cross section area of the jet, so that the airflow is accelerated from subsonic speed to sonic speed to supersonic speed. After the hydrogen raw gas entering the inlet pipe 14 from the laval nozzle 2 is subjected to the above-mentioned change process, the temperature of the hydrogen raw gas can reach-70 ℃.
In order to control shock waves, prevent the kinetic energy of the hydrogen feed gas from being converted into heat energy, and ensure that the hydrogen feed gas entering the vertical gas-liquid cyclone 1 is kept at a low temperature, an impeller 3 for energy recovery is provided at an outlet of the inlet pipe 14, and further, an impeller shaft 31 is provided on the impeller 3, and the impeller shaft 31 penetrates through a cylinder 11 of the vertical gas-liquid cyclone. Preferably, the end of the impeller shaft 31 is connected to the generator 9. The impeller 3 is driven to rotate by the kinetic energy of the hydrogen feed gas, so as to drive the generator 9 to generate electricity, and the kinetic energy of the hydrogen feed gas is recovered and converted into electric energy.
The condensation point of the carbon dioxide is-60 ℃, so the carbon dioxide in the hydrogen feed gas entering the vertical gas-liquid cyclone separator 1 is condensed into liquid. The gas-liquid mixture continues to move downwards along the spiral channel, in order to ensure the continuous low temperature in the vertical gas-liquid cyclone separator, a refrigeration coil 4 is arranged below the inner cylinder 17, and the refrigeration coil 4 is connected into a refrigeration cycle system.
Furthermore, the generator is connected with the refrigeration cycle system to provide electric energy for the refrigeration cycle system. Therefore, the kinetic energy of the hydrogen feed gas is recovered and converted into electric energy for recycling, and the energy utilization rate is improved.
Preferably, the refrigeration cycle system is a propane refrigeration cycle system, as shown in fig. 3, and includes a compressor 5, a heat exchanger 6, and an expansion valve 7, which are connected in sequence, wherein an air outlet pipe of the expansion valve 7 is connected to an air inlet of the refrigeration coil 4, and an air outlet of the refrigeration coil 4 is connected to an air return pipe of the compressor 5.
As shown in fig. 1, after the hydrogen feed gas enters the vertical gas-liquid cyclone separator 1 through the laval nozzle 2, the gas-liquid mixture moves downward along the spiral channel, and the condensed carbon dioxide moves to the wall surface under the action of gravity and centrifugal force and is discharged from the liquid phase outlet pipe 16. Preferably, a collecting bottle 8 is provided at the liquid phase outlet pipe 16 for collecting condensed carbon dioxide. The hydrogen raw material gas after the preliminary removal of carbon dioxide moves upwards to the gas phase outlet pipe 15 along the inside of the inner cylinder 17, and enters the next stage of purification process.
Compared with the traditional single Laval nozzle, the supersonic carbon capture energy recovery device constructed by using the structure of the Laval nozzle 2, the energy recovery impeller 3 and the vertical gas-liquid cyclone separator 1 in a matching way has the pressure recovery capability, and can effectively solve the problem of overlarge pressure loss of the Laval nozzle. Meanwhile, carbon capture of raw material gas for industrial production of hydrogen can be realized. Compared with the traditional hydrogen-rich flow carbon capture technology, the supersonic speed carbon capture energy recovery device provided by the invention has the advantages of height of only 2-3 m, width of only 40-50 cm, simple structure, small equipment volume and investment, simple operation, large treatment capacity and no solvent loss.
As shown in fig. 3, the invention also provides a supersonic energy recovery carbon capture system for industrial hydrogen production, which comprises the supersonic energy recovery device for industrial hydrogen production and the secondary carbon capture system, wherein the gas phase outlet pipe is connected with the inlet of the secondary carbon capture system. Preferably, the secondary carbon capture system is an alcohol amine solvent absorption carbon capture system. Since the alcohol amine solvent absorption carbon capture system is a mature carbon capture technology in the prior art, the specific structure and working principle thereof are not described herein. The supersonic speed carbon capture energy recovery device and the alcohol amine solvent absorption carbon capture system are combined to form a cascade carbon capture system, compared with the traditional single carbon capture mode, the method has the advantages that carbon dioxide is completely removed, simultaneously, the energy consumption is effectively reduced, and the solvent loss of a single alcohol amine solvent absorption method is reduced by at least 50%.
The working principle of the invention is as follows: (1) The hydrogen raw material gas containing carbon dioxide impurity gas enters the supersonic carbon capture energy recovery device from the inlet of the Laval nozzle 2, firstly, the gas reaches a supersonic state through the Laval nozzle 2, the temperature is reduced to-70 ℃, and the carbon dioxide in the hydrogen raw material gas is condensed into liquid drops under the low temperature condition. Then the gas-liquid mixture enters the vertical gas-liquid cyclone separator 1 from the inlet pipe 14, and the supersonic airflow pushes the impeller 3 to rotate, thereby realizing the recovery of the pneumatic energy of the hydrogen raw material in the supersonic state. The impeller 3 rotates to drive the generator to generate electricity, and kinetic energy is converted into electric energy. Then, the gas-liquid mixture continues to move downwards along the spiral channel, and the refrigeration coil 4 below the inner cylinder 17 provides low-temperature support for the inside of the cylinder 11, so that most of carbon dioxide is condensed. The condensed carbon dioxide moves to the wall surface by gravity and centrifugal force and is discharged from the liquid phase outlet pipe 16 into the collection bottle 8. (2) The decarbonized gas moves upwards to a gas phase outlet pipe 15 to be discharged, enters a next-stage alcohol amine solvent absorption carbon capture system, and is subjected to deacidification circulation by an alcohol amine method to thoroughly remove carbon dioxide.
Compared with the traditional hydrogen-rich stream carbon capture technology, the supersonic carbon capture energy recovery device has the advantages of simple structure and operation, small equipment volume and investment, large treatment capacity and no solvent loss. The cascade carbon capture system formed by combining the system and the alcohol amine solvent absorption carbon capture system can effectively reduce energy consumption while completely removing carbon dioxide.
Parts not described in the invention can be realized by adopting or referring to the prior art.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims (9)

1. A supersonic carbon capture energy recovery device for industrial hydrogen production comprises a vertical gas-liquid cyclone separator, wherein the vertical gas-liquid cyclone separator is provided with a cylinder body, an inlet pipe, a rotary gas-liquid separation assembly positioned in the cylinder body, a gas phase outlet pipe positioned at the upper part of the cylinder body and a liquid phase outlet pipe positioned at the bottom of the cylinder body;
the outlet of the inlet pipe is communicated with the inlet of the rotary gas-liquid separation component, the inlet of the gas phase outlet pipe is communicated with the gas outlet of the rotary gas-liquid separation component,
the device also comprises a Laval nozzle;
the outlet of the Laval nozzle is connected with the inlet of the inlet pipe, and the outlet of the inlet pipe is provided with an impeller for energy recovery;
and a refrigerating coil is arranged below the rotary gas-liquid separation assembly and is connected into a refrigerating circulation system.
2. The supersonic carbon capture energy recovery device for industrial hydrogen production of claim 1 wherein an impeller shaft is provided on the impeller, the impeller shaft passes through the barrel, and a generator is connected to an end of the impeller shaft.
3. The supersonic carbon capture energy recovery device for industrial hydrogen production according to claim 2, wherein the refrigeration cycle system is a propane refrigeration cycle system, comprising a compressor, a heat exchanger and an expansion valve connected in sequence, wherein an air outlet pipe of the expansion valve is connected with an air inlet of a refrigeration coil, and an air outlet of the refrigeration coil is connected with an air return pipe of the compressor.
4. The supersonic carbon capture energy recovery device for industrial hydrogen production of claim 3, wherein the rotating gas-liquid separation assembly comprises a vertical cylindrical inner barrel and a spiral plate located in an annular space between an outer sidewall of the inner barrel and an inner sidewall of the barrel, wherein one side of the spiral plate is connected with the outer sidewall of the inner barrel, and a top of the inner barrel extends to the outer periphery to be connected with the inner sidewall of the barrel.
5. The supersonic carbon capture energy recovery device for industrial hydrogen production according to claim 4, wherein the top of the inner barrel has a height difference between the left and right parts, wherein a cambered surface is formed between the higher part and the lower part, two side edges of the cambered surface respectively extend outwards vertically to meet the inner side wall of the barrel, and the cambered surface is opposite to the outlet of the inlet pipe; the lower is the start of the helix of the spiral plate and the top end of the lower is located below the inlet of the gas phase outlet pipe.
6. The supersonic carbon capture energy recovery apparatus for industrial hydrogen production of claim 2, wherein the generator is coupled to the refrigeration cycle system to provide electrical power to the refrigeration cycle system.
7. The supersonic carbon capture energy recovery device for industrial hydrogen production of claim 5, wherein the liquid phase outlet pipe is connected to a collection bottle for collecting condensed carbon dioxide.
8. A supersonic energy recovery carbon capture system for industrial hydrogen production, comprising the supersonic carbon capture energy recovery apparatus for industrial hydrogen production of any one of claims 1 to 7 and a secondary carbon capture system, the gas phase outlet pipe being connected to an inlet of the secondary carbon capture system.
9. A supersonic energy recovery carbon capture system for industrial hydrogen production according to claim 8, wherein the secondary carbon capture system is an alcohol amine solvent absorption carbon capture system.
CN202210880917.XA 2022-07-26 2022-07-26 Ultrasonic carbon capture energy recovery device and system for industrial hydrogen production Active CN115382339B (en)

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