CN115193246A - Amine adsorbent desorption carbon dioxide capture device - Google Patents

Amine adsorbent desorption carbon dioxide capture device Download PDF

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Publication number
CN115193246A
CN115193246A CN202210980445.5A CN202210980445A CN115193246A CN 115193246 A CN115193246 A CN 115193246A CN 202210980445 A CN202210980445 A CN 202210980445A CN 115193246 A CN115193246 A CN 115193246A
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Prior art keywords
desorption
adsorbent
carbon dioxide
amine
negative pressure
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邱峰
刘英聚
姜帅
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Beijing Derunchen Environmental Protection Technology Co ltd
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Beijing Derunchen Environmental Protection Technology Co ltd
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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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/06—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/10—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B01D53/12—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
    • 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
    • B01D53/346—Controlling the process
    • 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
    • B01D53/81—Solid phase processes
    • B01D53/83—Solid phase processes with moving reactants
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/80—Organic bases or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/20—Organic adsorbents
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Dispersion Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention provides an amine adsorbent desorption carbon dioxide capture device, which comprises an adsorption device filled with a carbon dioxide adsorbent, a settler communicated with a riser of the adsorption device, and a desorption device arranged between the settler and the adsorption device; the desorption device has a multi-stage desorption structure and at least comprises a pre-desorption device for heating and desorbing the adsorbent adsorbing the carbon dioxide and a negative pressure desorption device for carrying out negative pressure desorption on the adsorbent adsorbing the carbon dioxide. The flue gas containing carbon dioxide is adsorbed by the adsorption device, is sent into the settler by the riser and is further sent into the desorption device for carbon dioxide desorption, and the desorption efficiency of carbon dioxide is improved and the energy consumption is reduced by combining a heating pre-desorption mode and a negative pressure desorption mode.

Description

Amine adsorbent desorption carbon dioxide capture device
Technical Field
The invention relates to the technical field of carbon capture, in particular to an amine adsorbent desorption carbon dioxide capture device.
Background
At present, the most mature scheme is to use organic amine to capture carbon dioxide in flue gas, but the technology for capturing carbon dioxide by organic amine has the defects of overlarge desorption energy consumption, toxic reaction solvent, large occupied area, incapability of capturing low-concentration carbon dioxide and the like.
The carbon dioxide recovered from the flue gas can be used for enhanced oil displacement of an oil field or coal bed gas displacement of a coal mine or prepared into industrial raw materials such as methanol and the like.
In addition, for a closed space, when the concentration of carbon dioxide reaches 1%, people feel stuffy, dizziness and palpitation; when the concentration reaches 4-5%, people can feel asthma, headache and dizziness, and when the concentration reaches 10%, the human body can be seriously confused, and people can lose consciousness, have obnubilation and stop breathing to die. Especially, the timely removal of carbon dioxide is particularly important for the manned closed spaces such as submarines, space shuttles, space stations, civil air defense places and the like.
Disclosure of Invention
In view of this, the invention provides an amine adsorbent desorption carbon dioxide capture device to improve the adsorption effect of carbon dioxide in flue gas.
In order to achieve the purpose, the invention provides the following technical scheme:
an amine-based adsorbent desorption carbon dioxide capture device comprises an adsorption device filled with a carbon dioxide adsorbent, a settler communicated with a riser of the adsorption device, and a desorption device arranged between the settler and the adsorption device;
the desorption device is provided with a multi-stage desorption structure and at least comprises a pre-desorption device for heating and desorbing the adsorbent adsorbing the carbon dioxide and a negative pressure desorption device for carrying out negative pressure desorption on the adsorbent adsorbing the carbon dioxide.
Preferably, a steam heating structure for heating the input adsorbent is arranged in the pre-desorption device, and the heating temperature of the steam heating structure to the adsorbent is 100-130 ℃;
and a desorption gas outlet is arranged at the top of the pre-desorption device.
Preferably, the negative pressure desorption device is a vacuum device arranged between the pre-desorption device and the adsorption device, and the vacuum device receives the pre-desorbed adsorbent, performs secondary desorption in a negative pressure state, and outputs the desorbed adsorbent.
Preferably, the negative pressure desorption apparatus includes a plurality of the vacuum vessels arranged in parallel and operated alternately.
Preferably, the vacuum device comprises 2-10 vacuum devices arranged in parallel, and each vacuum device is provided with a suction outlet.
Preferably, the vacuum is operated at a pressure of from 5kPa (a) to 50kPa (a) and at an operating temperature of from 90 ℃ to 100 ℃.
Preferably, the adsorption device is a fluidized bed in which a serpentine tube cooling device is disposed.
Preferably, a preheating device for heating the adsorbent in the settler is arranged at the lower part of the settler;
the preheating device heats the adsorbent to 60-75 ℃.
Preferably, a heat exchanger and a cooler are further arranged between the negative pressure desorption device and the adsorption device;
the temperature of the adsorbent after heat exchange and cooling is 45-70 ℃.
The invention provides an amine adsorbent desorption carbon dioxide capture device, which comprises an adsorption device filled with a carbon dioxide adsorbent, a settler communicated with a riser of the adsorption device, and a desorption device arranged between the settler and the adsorption device; the desorption device has a multi-stage desorption structure and at least comprises a pre-desorption device for heating and desorbing the adsorbent adsorbing the carbon dioxide and a negative pressure desorption device for carrying out negative pressure desorption on the adsorbent adsorbing the carbon dioxide. The flue gas containing carbon dioxide is adsorbed by the adsorption device, is sent into the settler by the riser and is further sent into the desorption device to realize carbon dioxide desorption, and the desorption efficiency of carbon dioxide is improved and the energy consumption is reduced by combining a heating pre-desorption mode and a negative pressure desorption mode.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a first amine-based adsorbent desorption carbon dioxide capture device according to the present invention;
fig. 2 is a schematic diagram of a second amine-based adsorbent desorption carbon dioxide capture device provided by the invention.
The system comprises a flue gas outlet 1, a precipitator 2, a preheating device 3, a first conveying pipe 4, an upper spiral conveyor 5, a feeding valve 5A, a heating coil 6, a distribution pipe 7, a second conveying pipe 8, a middle spiral conveyor 9, a third conveying pipe 10, a feeding valve 11, an exhaust outlet 12, a fourth conveying pipe 13, a discharge valve 14, a heat exchanger 15, a heat exchange pipe 16, a fifth conveying pipe 17, a lower spiral conveyor 18, a riser pipe 19, a desorption gas outlet 20, a pre-desorption device 21, a negative pressure desorption device 22, an adsorption device 23, a cooling device 24, a distributor 25, a flue gas inlet 26, a vacuum device A and a vacuum device B.
Detailed Description
The invention discloses an amine adsorbent desorption carbon dioxide trapping device which improves the adsorption effect of carbon dioxide in flue gas.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic view of a first amine-based adsorbent desorption carbon dioxide capture device provided by the present invention; fig. 2 is a schematic diagram of a second amine-based adsorbent desorption carbon dioxide capture device provided by the invention.
The embodiment provides a carbon dioxide capturing device by amine adsorbent desorption, which comprises an adsorption device 23 filled with carbon dioxide adsorbent, a settler 2 communicated with a riser 19 of the adsorption device 23, and a desorption device arranged between the settler 2 and the adsorption device 23; the desorption device has a multi-stage desorption structure and at least comprises a pre-desorption device 21 for heating and desorbing the adsorbent adsorbing the carbon dioxide and a negative pressure desorption device 22 for carrying out negative pressure desorption on the adsorbent adsorbing the carbon dioxide. The flue gas containing carbon dioxide is adsorbed by the adsorption device 23, is sent into the settler 2 by the riser 19, and is further sent into the desorption device to realize carbon dioxide desorption, and the desorption efficiency of carbon dioxide is improved and the energy consumption is reduced by combining a heating pre-desorption mode and a negative pressure desorption mode.
In a specific embodiment of the present disclosure, a steam heating structure for heating an input adsorbent is disposed in the pre-desorption device 21, and the steam heating structure heats the adsorbent at a temperature of 100 ℃ to 130 ℃; the top of the pre-desorption device 21 is provided with a desorption gas outlet 20. The desorption device comprises a pre-desorption device 21 and a negative pressure desorption device 22 which are sequentially arranged, wherein the pre-desorption device 21 is communicated with the settler 2, and the input adsorbent is heated by a steam heating structure in the pre-desorption device, so that high-concentration carbon dioxide can be desorbed. The top of the pre-desorption device 21 is provided with a desorption gas outlet 20 which can be led out by a fan for subsequent treatment. Preferably, the steam heating structure in the pre-desorption device 21 is a heating coil 6, a fluidized gas distribution pipe 7 is arranged below the heating coil 6, when the heating coil 6 works, hot steam is introduced into the heating coil, the hot steam is condensed into water by utilizing the temperature difference between the inside and the outside of the heating coil 6, the heat of the water is transferred to the inside of the desorber, and the desorber is heated, so that carbon dioxide is desorbed. The lower part of the steam heating structure is provided with a distribution pipe 7, the inflow gas is introduced to lead the adsorbent to be in a fluidized state, and the adsorbent is sent into the vacuum device through a second conveying pipe 8 at the bottom of the pre-desorption device 21.
In one embodiment of the present disclosure, the negative pressure desorption device 22 is a vacuum device disposed between the pre-desorption device 21 and the adsorption device 23, and the vacuum device receives the pre-desorbed adsorbent, performs secondary desorption in a negative pressure state, and outputs a desorbed adsorbent.
The negative pressure desorption apparatus 22 may be provided to include a plurality of vacuums (vacuums a, B, 8230; preferably, the vacuums include 2 to 10 vacuums arranged in parallel, each having a suction outlet 12 provided thereon, which are arranged in parallel and operated alternately.
In a preferred embodiment provided by this embodiment, the vacuum comprises 2 parallel-arranged vacuum vessels, the operating pressure of the vacuum vessel is 5kPa (a) to 50kPa (a), and the operating temperature is 90 ℃ to 100 ℃.
In a first arrangement as shown in fig. 1, a first transport pipe 4 and a feed valve 5A are provided between the settler 2 and the pre-desorption device 21, and the adsorbent is gravity-transported to the pre-desorption device 21 and the flow rate of the adsorbent is controlled; the pre-desorbed adsorbent flows downwards by gravity from the second conveying pipe 8 and is divided by the third conveying pipes 10, each third conveying pipe 10 is provided with a feeding valve 11, the adsorbent is conveyed into a preset vacuum device by controlling the feeding valve 11, preferably 2 vacuum devices are arranged, the vacuum device is alternately operated to carry out negative pressure desorption, in a specific embodiment, the vacuum device A feeds and discharges materials, the vacuum device B carries out negative pressure desorption, namely, the feeding valve 11 and the discharging valve 14 of the vacuum device A are both opened, the materials are fed by gravity, the materials are discharged by the lower spiral conveyor 18, the feeding and discharging are simultaneously carried out, the feeding valve and the discharging valve of the vacuum device B are simultaneously closed, the vacuum device B is ensured to be in a closed state, an air pump is utilized to pump the internal pressure of the vacuum device B to 5-50 kPa (a), and the residual 20-50 CO is desorbed under the condition of an operating temperature of 90 DEG C 2 After the negative pressure desorption is finished, the charging valve and the discharging valve of the vacuum device B are opened to carry out charging and discharging, the charging and discharging valve of the vacuum device A is closed to carry out the negative pressure desorption, the operation is carried out alternately in sequence, and the adsorbent at 90 ℃ after the negative pressure desorption is conveyed to the adsorption device 23 through the screw conveyor 18.
In this embodiment, a cooling device 24 for cooling the desorbed adsorbent is disposed in the adsorption device 23, and the cooling device 24 is a serpentine cooling coil. The high temperature adsorbent enters the adsorption device 23 and is cooled by the cooling coil. Cooling water of 20 ℃ enters the cooling coil, and the temperature is raised to about 40 ℃ after heat exchange, and the cooling water flows out from the outlet. The heat exchange temperature between the adsorbent particles at 90 ℃ in the fluidized bed and the cooling coil is reduced to below 60 ℃, and the adsorption operation is started.
In the second arrangement structure shown in fig. 2, after the vacuum desorbs the adsorbent therein under negative pressure, the adsorbent is output through the fourth delivery pipe 13 at the rear end of the vacuum, the discharge valve 14 is arranged on the fourth delivery pipe 13, and the feed valve 11 and the discharge valve 14 are in open-close fit to input and output the adsorbent, and form a closed environment inside the vacuum, so as to facilitate the evacuation and form negative pressure. If the adsorbent at 90 ℃ after the negative pressure desorption is directly fed into the adsorption apparatus 23, heat loss is caused and the cooling load is also increased.
In one embodiment of the present disclosure, a heat exchanger 15 is disposed between the negative pressure desorption device 22 and the adsorption device 23; the temperature of the adsorbent after heat exchange is 40-70 ℃. A heat exchanger 15 is arranged between a vacuum device and an adsorption device 23, the 90 ℃ adsorbent conveyed by the vacuum device enters the heat exchanger 15, a heat exchange pipe 16 is arranged inside the heat exchanger 15, a part of heat of the adsorbent is recovered through an external cold source, the temperature of the adsorbent is reduced to 40-70 ℃, and then the adsorbent is conveyed to the adsorption device 23 through a fifth conveying pipe 17 by means of a lower screw conveyor 18.
In the embodiment, a preheating device 3 for heating the adsorbent in the settler 2 is arranged at the lower part of the settler; the preheating device 3 preheats the adsorbent by using the low-temperature heat of the device, and then the steam heating structure in the pre-desorption device 21 continuously heats the adsorbent to the temperature required by the desorption process. The preheating device 3 primarily heats the adsorbent by using the low-temperature heat of the device, heats the adsorbent to 60-75 ℃ from 40-50 ℃ by preheating, and further heats the fed adsorbent to 100-130 ℃ by the heating coil 6 after entering the pre-desorption device 21, so that the low-temperature heat utilization rate is improved, the steam consumption in the desorption process is reduced, and the energy consumption of the device is reduced.
By controlling the desorption temperature of the adsorbent by the preheating device 3 and the pre-desorption device 21, about 50-80% of CO in the adsorbent can be desorbed 2 The pre-desorbed adsorbent is gravity-fed to the vacuum vessel 22 through the fourth feed pipe 13.
The heat (low-temperature heat) absorbed by the heat exchange pipe 16 can be sent to the preheating device 3 to heat the adsorbent in the settler, thereby improving the energy efficiency.
A first conveying pipe 4 and an upper screw conveyor 5 are arranged at the bottom of the settler 2, the adsorbent is conveyed into a pre-desorption device 21 for pre-desorption, the pre-desorbed adsorbent is conveyed into a middle screw conveyor 9 through a second conveying pipe 8, the adsorbent is conveyed to a vacuum device A or a vacuum device B through the middle screw conveyor 9, finally the adsorbent discharged from the bottom of the vacuum device is conveyed into a heat exchanger through a fourth conveying pipe 13 and a discharge valve 14, and is conveyed to an adsorption device 23 through a fifth conveying pipe 17 and a lower screw conveying pipe 18 after the temperature of the adsorbent is reduced to 40-70 ℃ through heat exchange with a heat exchange pipe 16; the flue gas is fed through a flue gas inlet 26 at the bottom of the adsorption device 23 and is in gas-solid contact with the desorbed adsorbent through a distributor 25 to adsorb carbon dioxide.
The adsorbent in the adsorption device 23 adsorbs carbon dioxide, the rest flue gas and the adsorbent are conveyed into the settler 2 through the riser 19, the adsorbent falls into the lower part of the settler 2 by gravity, and the flue gas flows upwards and is discharged through the flue gas outlet 1 at the top of the settler 2.
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 (9)

1. The amine-based adsorbent desorption carbon dioxide capture device is characterized by comprising an adsorption device filled with a carbon dioxide adsorbent, a settler communicated with a riser of the adsorption device, and a desorption device arranged between the settler and the adsorption device;
the desorption device is provided with a multi-stage desorption structure and at least comprises a pre-desorption device for heating and desorbing the adsorbent adsorbing the carbon dioxide and a negative pressure desorption device for carrying out negative pressure desorption on the adsorbent adsorbing the carbon dioxide.
2. The amine-based adsorbent desorption carbon dioxide capture device of claim 1 wherein the pre-desorption device is provided with a steam heating structure for heating the input adsorbent, and the steam heating structure heats the adsorbent at a temperature of 100 ℃ to 130 ℃;
and a desorption gas outlet is arranged at the top of the pre-desorption device.
3. The amine-based adsorbent desorption carbon dioxide capture device of claim 1, wherein the negative pressure desorption device is a vacuum device disposed between the pre-desorption device and the adsorption device, and the vacuum device receives the pre-desorbed adsorbent, performs secondary desorption in a negative pressure state, and outputs the desorbed adsorbent.
4. The amine-based adsorbent desorbing carbon dioxide capture device of claim 3, wherein said negative pressure desorbing means comprises a plurality of said vacuums arranged in parallel and operated alternately.
5. The amine-based adsorbent desorbing carbon dioxide trap apparatus as claimed in claim 4, wherein said vacuum means comprises 2 to 10 vacuum means arranged in parallel, each of said vacuum means being provided with a suction outlet.
6. The amine-based adsorbent desorbing carbon dioxide capture device of any one of claims 3 to 5, wherein the vacuum is operated at a pressure of 5kPa (a) to 50kPa (a) and at a temperature of 90 ℃ to 100 ℃.
7. The amine-based adsorbent desorbing carbon dioxide capture device of claim 1, wherein said adsorption device is a fluidized bed having a serpentine cooling device disposed therein.
8. The amine-based adsorbent desorbing carbon dioxide capturing apparatus according to claim 1, wherein a preheating device for raising a temperature of the adsorbent in the lower portion of the settler is provided;
the preheating device heats the adsorbent to 60-75 ℃.
9. The amine-based adsorbent desorption carbon dioxide capture device according to claim 1, wherein a heat exchanger and a cooler are further arranged between the negative pressure desorption device and the adsorption device;
the temperature of the adsorbent after heat exchange and cooling is 45-70 ℃.
CN202210980445.5A 2022-08-16 2022-08-16 Amine adsorbent desorption carbon dioxide capture device Pending CN115193246A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115970441A (en) * 2022-11-02 2023-04-18 原初科技（北京）有限公司 Carbon dioxide absorption furnace and using method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107073385A (en) * 2014-11-10 2017-08-18 国际壳牌研究有限公司 Method for capturing CO2 from air-flow
CN112263890A (en) * 2020-09-10 2021-01-26 国电新能源技术研究院有限公司 Flue gas waste heat utilization type carbon capture method and system
CN113813746A (en) * 2021-10-22 2021-12-21 北京德润晨环保科技有限公司 Device and method for directly capturing carbon dioxide from air
CN113856411A (en) * 2021-10-22 2021-12-31 北京德润晨环保科技有限公司 Spherical solid amine multistage thin-layer bubbling bed carbon dioxide capture and desorption system and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107073385A (en) * 2014-11-10 2017-08-18 国际壳牌研究有限公司 Method for capturing CO2 from air-flow
CN112263890A (en) * 2020-09-10 2021-01-26 国电新能源技术研究院有限公司 Flue gas waste heat utilization type carbon capture method and system
CN113813746A (en) * 2021-10-22 2021-12-21 北京德润晨环保科技有限公司 Device and method for directly capturing carbon dioxide from air
CN113856411A (en) * 2021-10-22 2021-12-31 北京德润晨环保科技有限公司 Spherical solid amine multistage thin-layer bubbling bed carbon dioxide capture and desorption system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115970441A (en) * 2022-11-02 2023-04-18 原初科技（北京）有限公司 Carbon dioxide absorption furnace and using method thereof

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