CN115382339B - Ultrasonic carbon capture energy recovery device and system for industrial hydrogen production - Google Patents

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

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CN115382339B
CN115382339B CN202210880917.XA CN202210880917A CN115382339B CN 115382339 B CN115382339 B CN 115382339B CN 202210880917 A CN202210880917 A CN 202210880917A CN 115382339 B CN115382339 B CN 115382339B
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inlet
carbon capture
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separation assembly
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CN115382339A (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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    • 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

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Abstract

The invention relates to the technical field of carbon dioxide trapping, and particularly discloses a supersonic carbon trapping energy recovery device for industrial hydrogen production. Comprises a vertical gas-liquid cyclone separator and a Laval nozzle. The vertical gas-liquid cyclone separator is provided with a cylinder body, an inlet pipe, a rotary gas-liquid separation assembly, 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 trapping system. The invention effectively solves the defects of the traditional hydrogen-rich stream carbon trapping technology, realizes complete removal of carbon dioxide and has low energy consumption.

Description

Ultrasonic carbon capture energy recovery device and system for industrial hydrogen production
Technical Field
The invention relates to the technical field of carbon dioxide trapping, in particular to a supersonic carbon trapping energy recovery device and system for industrial hydrogen production.
Background
Fossil fuel hydrogen production (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 yield 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 simultaneously, the hydrogen energy is effectively utilized, and the capture and removal of the carbon dioxide in the hydrogen-rich stream are important.
The traditional hydrogen-rich stream carbon trapping 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, a porous inorganic membrane separation method and a MOF membrane separation method), but the methods have certain defects. For example, the pressure swing adsorption method is widely used for purifying processes after various crude hydrogen preparation such as methanol cracking and coke oven gas, and the like, and has large occupied area and high investment cost. The cryogenic separation process is suitable for the large-scale hydrogen purification industry where hydrogen content is low, and requires continuous cooling using a compressor, so that energy consumption is large and the difficulty of temperature control operation is large. The solvent absorption method has relatively mature process and high carbon dioxide removal rate, but the absorption solution is lossy and the equipment energy consumption is higher.
Disclosure of Invention
The invention aims to provide a supersonic carbon capture energy recovery device for industrial hydrogen production, which effectively solves the defects of the traditional hydrogen-rich stream carbon capture technology.
In order to solve the technical problems, the invention adopts the following technical scheme:
A supersonic carbon capture energy recovery device for industrial hydrogen production comprises a vertical gas-liquid cyclone separator and a Laval nozzle, 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 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 body, and a generator is connected to the end portion of the impeller shaft.
Further, 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 a refrigeration coil, and an air outlet of the refrigeration coil is connected with an air return pipe of the compressor.
Further, the rotary gas-liquid separation assembly 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 periphery to be connected with the inner side wall of the cylinder.
Further, the left and right parts of the top of the inner cylinder are provided with 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 and vertically to be connected with the inner side wall of the cylinder, and the arc surface is opposite to the outlet of the inlet pipe; the lower part is the spiral starting point of the spiral plate, and the top end of the lower part is positioned 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 further aims to provide a supersonic energy recovery carbon trapping system for industrial hydrogen production, which effectively solves the defects of the traditional hydrogen-rich stream carbon trapping technology.
A supersonic energy recovery carbon capture system for industrial hydrogen production comprising a supersonic carbon capture energy recovery device for industrial hydrogen production and a secondary carbon capture system as described in the above embodiments, the gas phase outlet pipe being connected to an 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 Laval nozzle structure, the energy recovery impeller and the vertical gas-liquid cyclone separator are matched to construct a supersonic carbon capture energy recovery device, so that the kinetic energy of supersonic airflow is effectively recovered, and the energy utilization rate is improved; and 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, small investment, large treatment capacity and no solvent loss.
(2) The supersonic carbon capture energy recovery device is matched with a traditional alcohol amine solvent absorption carbon capture system, so that the energy consumption is effectively reduced while the complete removal of carbon dioxide in hydrogen raw material gas is realized, and the solvent loss of at least 50% of a single alcohol amine solvent absorption method is saved.
Drawings
The invention will be further described with reference to the drawings and detailed description.
FIG. 1 is a cross-sectional view of a supersonic carbon capture energy recovery device of the invention (solid arrows in the figure indicate the flow direction of the gas and liquid phases).
FIG. 2 is a perspective view of a supersonic carbon capture energy recovery device of the invention.
FIG. 3 is a block diagram of a supersonic energy recovery carbon capture system of the invention.
Detailed Description
As shown in fig. 1 and 2, a 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 is provided with a cylinder 11, a top plate 12, a bottom plate 13, an inlet pipe 14, a rotary gas-liquid separation assembly positioned in the cylinder, a gas phase outlet pipe 15 positioned at the upper part of the cylinder and a liquid phase outlet pipe 16 positioned at the bottom of the cylinder. 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 includes an inner barrel 17 of upright cylindrical shape and a spiral plate 18 positioned in an annular space between an outer sidewall of the inner barrel and an inner sidewall of the barrel. The inner side wall of the cylinder 11, the outer side wall of the inner cylinder 17 and the upper and lower adjacent spiral plates 18 form a spiral channel. The inner cylinder 17 is opened up and down, 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 periphery to be connected with the inner side wall of the cylinder 11. The left and right parts of the top of the inner cylinder 17 have a height difference, as shown in a point a and a point B in fig. 1, wherein an arc surface 19 is formed between the upper part a and the lower part B, two side edges of the arc surface 19 respectively extend to the outer side 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 spiral starting point of the spiral plate 18 and the top end of the lower part B is located below the inlet of the 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 fig. 1, the front portion of the laval nozzle 2 tapers from large to small to a narrow throat and then tapers from small to large to expand outwardly to the rear portion of the nozzle. The pressure of the hydrogen raw material gas after the hydrogen raw material gas comes out of a wellhead can reach 3-6MPa, the hydrogen raw material gas from the wellhead flows into the Laval nozzle 2 under high pressure, and the hydrogen raw material gas is contracted and then expanded, so that unbalanced condensation occurs in the expansion process. The velocity of the air flow also varies due to the variation of the spray cross-sectional area, causing the air flow to accelerate from subsonic to sonic until supersonic. The temperature of the hydrogen feed gas entering the inlet pipe 14 from the laval nozzle 2 can reach-70 ℃ after the above-mentioned change process.
In order to control shock waves, prevent kinetic energy of hydrogen raw material gas from being converted into heat energy, ensure that the hydrogen raw material gas entering the vertical gas-liquid cyclone separator 1 keeps low temperature, an impeller 3 for energy recovery is arranged at the outlet of an inlet pipe 14, and further, an impeller shaft 31 is arranged on the impeller 3, and the impeller shaft 31 penetrates through a cylinder 11 of the vertical gas-liquid cyclone separator. 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 raw material gas, so that the generator 9 is driven to generate electricity, and the kinetic energy of the hydrogen raw material gas is recovered and then converted into electric energy.
Because the condensation point of the carbon dioxide is-60 ℃, the carbon dioxide in the hydrogen raw material 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, and in order to ensure 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 circulation system.
Further, 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 raw material 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 comprises a compressor 5, a heat exchanger 6 and an expansion valve 7 which are sequentially connected, wherein an air outlet pipe of the expansion valve 7 is connected with an air inlet of a refrigeration coil 4, and an air outlet of the refrigeration coil 4 is connected with an air return pipe of the compressor 5.
As shown in fig. 1, after the hydrogen raw material gas enters the vertical gas-liquid cyclone separator 1 through the laval nozzle 2, the gas-liquid mixture moves downwards 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 collection 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 inner part of the inner cylinder 17, and enters the next purification flow.
The ultrasonic carbon capture energy recovery device constructed by utilizing the structure of the Laval nozzle 2 and the cooperation of the energy recovery impeller 3 and the vertical gas-liquid cyclone separator 1 has the capability of pressure recovery compared with the traditional single Laval nozzle, and can effectively solve the problem of overlarge pressure loss of the Laval nozzle. Meanwhile, carbon trapping of the industrial production hydrogen feed gas can be realized. Compared with the traditional hydrogen-rich stream carbon capture technology, the supersonic carbon capture energy recovery device provided by the invention has the advantages of 2-3 meters in height, 40-50 cm in width, simple structure, small equipment volume and investment, simplicity in 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 carbon capture energy recovery device for industrial hydrogen production and a 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. Because the alcohol amine solvent absorption carbon capture system is the existing more mature carbon capture technology, the specific structural arrangement and working principle thereof are not described in detail herein. The supersonic carbon capture energy recovery device and the alcohol amine solvent absorption carbon capture system are combined to form a cascading carbon capture system, so that compared with a traditional single carbon capture mode, 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 a supersonic carbon capture energy recovery device from the inlet of the Laval nozzle 2, firstly, the gas is enabled to reach a supersonic state through the Laval nozzle 2, the temperature is reduced to-70 ℃, and carbon dioxide in the hydrogen raw material gas is condensed into liquid drops under the low temperature condition. The gas-liquid mixture then enters the vertical gas-liquid cyclone separator 1 from the inlet pipe 14, and the supersonic gas flow pushes the impeller 3 to rotate, so that the recovery of the kinetic energy of the hydrogen raw material gas in a supersonic state is realized. The impeller 3 rotates to drive the generator to generate electricity, and kinetic energy is converted into electric energy. The gas-liquid mixture then continues to move down the spiral path, providing low temperature support to the refrigeration coil 4 below the inner drum 17, within the drum 11, effecting condensation of a substantial portion of the carbon dioxide. 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 trapping system, and is deacidified and circulated 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, small investment, large treatment capacity and no solvent loss. The cascade carbon capture system formed by combining the alcohol amine solvent absorption carbon capture system effectively reduces energy consumption while completely removing carbon dioxide.
Parts not described in the present invention can be realized by adopting or referring to the prior art.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.

Claims (5)

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 assembly, the inlet of the gas-phase outlet pipe is communicated with the gas outlet of the rotary gas-liquid separation assembly, and the rotary gas-liquid separation assembly is characterized in that,
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;
a refrigerating coil is arranged below the rotary gas-liquid separation assembly, and is connected to a refrigerating circulation system;
An impeller shaft is arranged on the impeller, penetrates through the cylinder body, and a generator is connected to the end part of the impeller shaft;
the refrigerating circulation system is a propane refrigerating circulation 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 a refrigerating coil, and an air outlet of the refrigerating coil is connected with an air return pipe of the compressor;
The rotary gas-liquid separation assembly 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 periphery to be connected with the inner side wall of the cylinder;
The left part and the right part of the top of the inner cylinder are provided with height differences, wherein a cambered surface is formed between the higher part and the lower part, two side edges of the cambered surface respectively extend outwards and vertically to be connected with the inner side wall of the cylinder body, and the cambered surface is opposite to the outlet of the inlet pipe; the lower part is the spiral starting point of the spiral plate, and the top end of the lower part is positioned below the inlet of the gas phase outlet pipe.
2. The supersonic carbon capture energy recovery device for industrial hydrogen production of claim 1, wherein said generator is coupled to said refrigeration cycle system to provide electrical energy to the refrigeration cycle system.
3. The ultrasonic carbon capture energy recovery device for industrial hydrogen production of claim 1 wherein said liquid phase outlet tube is connected to a collection bottle for collecting condensed carbon dioxide.
4. A supersonic energy recovery carbon capture system for industrial hydrogen production comprising a supersonic carbon capture energy recovery device for industrial hydrogen production as defined in any one of claims 1-3 and a secondary carbon capture system, said gas phase outlet conduit being connected to an inlet of the secondary carbon capture system.
5. The supersonic energy recovery carbon capture system for industrial hydrogen production of claim 4, wherein said 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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