CN115025595A - CCUS all-in-one - Google Patents
CCUS all-in-one Download PDFInfo
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- CN115025595A CN115025595A CN202210649904.1A CN202210649904A CN115025595A CN 115025595 A CN115025595 A CN 115025595A CN 202210649904 A CN202210649904 A CN 202210649904A CN 115025595 A CN115025595 A CN 115025595A
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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
- B01D53/22—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 diffusion
- B01D53/225—Multiple stage diffusion
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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
- B01D53/14—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 absorption
- B01D53/1425—Regeneration of liquid absorbents
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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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
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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
- B01D53/14—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 absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a CCUS integrated machine, which comprises a filtration and purification treatment system, a compressed air source system, a membrane separation system and a sampling and metering system; the waste gas outlet of the filtering and purifying treatment system is connected with the residual flue gas outlet, and the purifying outlet of the filtering and purifying treatment system is connected with the first membrane treatment system after being connected with the first air compressor; a purification and separation outlet of the first membrane treatment system is connected with a third air compressor and then is connected with a second membrane treatment system, and a tail gas outlet is directly connected with a residual flue gas outlet; the purification and separation outlet of the second membrane treatment system is connected with a second air compressor and then is connected with a capture compressed CO 2 The tail gas outlet of the interface is connected with a sampling and metering system; the sampling and metering system is used for judging CO in the waste gas 2 Whether the content reaches the circulation standard or not, a tail gas outlet is connected with a residual flue gas outlet, a circulation port is connected to an inlet of a first air compressor, and the CCUS all-in-one machine adopts a membrane separation method to carry out CO 2 Trapping, applicable to small-volume and compact-space dischargeAnd (4) a factory.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of flue gas purification, in particular to a CCUS all-in-one machine.
[ background of the invention ]
The currently used CCUS technology in industry is basically capture after combustion, and a chemical adsorption method is adopted. Specifically, after denitration, dust removal and desulfurization of flue gas, clean flue gas is extracted by a draught fan and enters a water washing tower, and the flue gas is washed, cooled and deeply desulfurized in the tower and then enters an absorption tower. The desulfurized flue gas is sent into an absorption tower after the flow is regulated, wherein part of CO 2 Absorbed by chemical solvent, and the tail gas is discharged into the atmosphere from the top of the tower. Absorption of CO 2 The rich liquid is pumped into the lean-rich liquid heat exchanger from the tower bottom, and is sent into the regeneration tower after heat is recovered. Desorption of CO 2 Cooling and separating the CO and the water vapor to remove water to obtain the CO with purity 2 And the product gas is sent to the subsequent working section for use. Condensed water separated by condensation in the regeneration gas is pumped to the regeneration tower. The rich solution enters from the upper part of the regeneration tower, and partial CO is desorbed by stripping 2 Then into the boiler to make CO therein 2 Further desorption is carried out. Desorption of CO 2 And the lean solution flows out from the bottom of the regeneration tower, exchanges heat through a lean and rich solution heat exchanger, is sent to a water cooler by a pump, and enters an absorption tower for absorption after being cooled. The solution circulates back and forth to form continuous absorption and desorption of CO 2 The process of (1). The product gas which is cooled and separated from the regeneration tower enters CO 2 The compressor adopts circulating cooling water for interstage cooling, and compressed CO 2 The gas enters a dehydration skid block for drying. CO from compression unit 2 And (3) dehydrating in a drying tower, cooling and refrigerating the pressurized and dehydrated product gas to below-20 ℃ by a carbon dioxide liquefier, and completely liquefying the product gas and then delivering the product gas to a carbon dioxide spherical tank for storage.
The technical scheme has the following defects:
1. can only be applied to factories with large discharge amount, mainly coal-fired power plants and cement plants.
2. High cost and large energy consumption.
3. The floor space is large, and proper space cannot be provided in many places.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a CCUS all-in-one machine which adopts a membrane separation method to carry out CO 2 The trap can be applied to a plant having a small amount of emissions and a compact space.
In order to realize the aim, the invention provides a CCUS all-in-one machine, which comprises a filtration and purification treatment system, a compressed air source system, a membrane separation system and a sampling and metering system; the compressed air source system comprises a first air compressor, a second air compressor and a third air compressor, and the membrane separation system comprises a first membrane treatment system and a second membrane treatment system; an inlet of the filtering and purifying treatment system is connected with a flue gas inlet, a waste gas outlet of the filtering and purifying treatment system is connected with a residual flue gas outlet, and a purifying outlet of the filtering and purifying treatment system is connected with the first membrane treatment system after being connected with a first air compressor; a purification separation outlet of the first membrane treatment system is connected with a third air compressor and then connected with a second membrane treatment system, and a tail gas outlet of the first membrane treatment system is directly connected with a residual flue gas outlet; the purification and separation outlet of the second membrane treatment system is connected with a second air compressor and then is connected with a compressed CO collector 2 The tail gas outlet of the second membrane treatment system is connected with a sampling and metering system; the sampling and metering system is used for judging CO in the waste gas 2 Whether the content reaches the circulation standard, the tail gas outlet of the sampling and metering system is connected with the residual smoke outlet, and the circulation port of the sampling and metering system is connected to the inlet of the first air compressor.
Preferably, the principle of judging whether the circulation standard is met by the sampling and metering system is that CO in the exhaust gas is used as the principle 2 Whether the content is lower than a preset value or not, and if the content is lower than the preset value, discharging the waste gas from a tail gas outlet of the sampling and metering system; otherwise, it willThe waste gas is connected into the inlet of the first air compressor for circulation through a circulation port of the sampling and metering system.
Preferably, the filtration purification treatment system includes oil water separator, ultra-precision piece filter and the preheating control system that sets gradually along the flue gas treatment direction, oil water separator and ultra-precision piece filter are used for the preliminary treatment of waste gas, the preheating control system includes temperature controller and tubulose electric heater for heat the regulation of admitting air in the within range of settlement.
Preferably, the first membrane treatment system is provided with a flat organic molecular membrane, and CO is contained in the organic molecular membrane through pressure difference 2 The gas is initially separated.
Preferably, the second membrane treatment system comprises a hollow fiber membrane module, a heating and pyrolysis absorption tank, a rich solution circulating pump and a barren solution circulating pump, the flue gas discharged by the third air compressor is reacted with the MDEA solution through the hollow fiber membrane module, the rich solution is pumped into the heating and desorption tank through the rich solution circulating pump to be heated and desorbed, the desorbed barren solution returns to the hollow fiber membrane module through the barren solution circulating pump, and CO released by desorption is desorbed 2 And is compressed by a second air compressor and then discharged.
Preferably, the sampling and metering system comprises a purity control valve and a flow meter, and the concentration flow of the permeation gas and the tail gas is controlled by adjusting the purity control valve and the flow meter.
Preferably, the system also comprises a container, wherein the filtering and purifying treatment system, the compressed gas source system, the membrane separation system and the sampling and metering system are centralized in the container, and the container is provided with 4 external interfaces comprising a flue gas inlet, a residual flue gas outlet and trapped compressed CO 2 Interface, power supply interface.
The invention has the beneficial effects that:
1. the CCUS all-in-one machine is small in occupied area and capable of being stacked in structural strength. Can be applied to factories with small discharge amount and compact space, such as: paper mills, pulp mills, waste incineration plants, small boiler plants, etc.
2. Can realize many parallelly connected uses, it is convenient to overhaul, can directly enter the mouth and close the isolation maintenance and do not influence wholly if a trouble.
3. The whole machine is convenient to transport, the installation time is saved, the assembly can be completed in a factory, and the quantity can be ordered directly according to the quantity to be processed on site.
4. And the membrane separation technology is adopted, so that the operation is convenient and the energy consumption is low.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a block diagram of the structure of a CCUS all-in-one machine of the present invention;
FIG. 2 is a flow diagram of the flue gas entering the first membrane separation system of the present invention;
FIG. 3 is a flow diagram of the flue gas entering the first membrane separation system of the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the invention provides a CCUS all-in-one machine, which is characterized in that: comprises a filtering and purifying treatment system 1, a compressed air source system, a membrane separation system and a sampling and metering system 5; the compressed air source system comprises a first air compressor 2, a second air compressor 6 and a third air compressor 7, wherein the first air compressor 2 and the fourth air compressor 7 are used for containing CO 2 For providing the driving force required by the membrane separation system, and a third air compressor 6 for compressing the separated high purity CO 2 The gas is compressed and output, and the membrane separation system comprises a first membrane processing system 3 and a second membrane processing system 4;
an inlet of the filtering and purifying treatment system 1 is connected with a flue gas inlet, a waste gas outlet of the filtering and purifying treatment system 1 is connected with a residual flue gas outlet, and a purifying outlet of the filtering and purifying treatment system 1 is connected with the first membrane treatment system 3 after being connected with the first air compressor 2;
a purification separation outlet of the first membrane treatment system 3 is connected with a third air compressor 7 and then connected with a second membrane treatment system 4, and a tail gas outlet of the first membrane treatment system 3 is directly connected with a residual flue gas outlet;
the purification and separation outlet of the second membrane treatment system 4 is connected to the second membrane treatment systemAfter the two air compressors 6, the compressed CO is collected and compressed 2 The tail gas outlet of the second membrane processing system 4 is connected with a sampling and metering system 5;
the sampling and metering system 5 is used for judging CO in the waste gas 2 Whether the content reaches the circulation standard, the tail gas outlet of the sampling and metering system 5 is connected with the residual flue gas outlet, and the circulation port of the sampling and metering system 5 is connected to the inlet of the first air compressor 2.
Further, the principle of the sampling and metering system 5 for judging whether the circulation standard is met is that CO in the exhaust gas 2 If the content is lower than a preset value (the value can be set manually), the waste gas is discharged from a tail gas outlet of the sampling and metering system 5; otherwise, the exhaust gas is introduced into the inlet of the first air compressor 2 via the circulation port of the sampling and metering system 5 for circulation.
Further, the filtration purification treatment system 1 comprises an oil-water separator 11, an ultra-precision filter 12 and a preheating control system 13 which are sequentially arranged along the flue gas treatment direction, wherein the oil-water separator 11 and the ultra-precision filter 12 are used for pretreating the waste gas and removing micro particles, oil, condensate and the like in the waste gas, and the preheating control system 13 comprises a temperature controller and a tubular electric heater, and is used for adjusting the inlet air heating within a set range so that the membrane separation system works under the most suitable condition.
Further, the first membrane treatment system 3 is provided with a flat organic molecular membrane, which is a gas diffusion membrane. By pressure difference to CO 2 The gas is primarily separated, and CO passes through the membrane 2 The concentration can reach 50%, and the impurity contains N 2 ，CH 4 And the like.
Further, the second membrane treatment system 4 includes a hollow fiber membrane module 41, an MDEA solution, a heating desorption tank 42, a rich solution circulation pump 43, and a lean solution circulation pump 44, wherein the flue gas discharged from the third air compressor 7 passes through the hollow fiber membrane module 41 to react with the MDEA solution, the rich solution is pumped into the heating desorption tank 42 through the rich solution circulation pump 43 to be heated to 60-80 ℃ for desorption, the desorbed lean solution returns to the hollow fiber membrane module 41 through the lean solution circulation pump 44, and the desorbed lean solution is releasedReleased CO 2 Compressed by a second air compressor 6 and discharged, CO at this time 2 Can reach to>90％。
Further, the sampling and metering system 5 comprises a purity control valve and a flow meter, and concentration flow of the permeation gas and the tail gas is controlled by adjusting the purity control valve and the flow meter.
Further, still include container 8, filtration purification processing system 1, compressed air source system, membrane separation system and sample measurement system 5 concentrate inside container 8, container 8 is equipped with 4 external interfaces, including flue gas entry, residual flue gas export, entrapment compression CO 2 Interface, power supply interface.
The working process of the invention is as follows:
after the pretreated flue gas B1 is treated by the filtering and purifying treatment system 1, the waste gas B10 directly enters the residual flue gas outlet, and the purified gas B2 passes through the first air compressor 2 and enters the first membrane treatment system 3 for preliminary separation.
CO-containing after separation via the first membrane treatment system 3 2 The gas B4 enters a third air compressor 7 for compression and then enters a second membrane processing system 4 for fine separation, and tail gas B11 separated by the first membrane processing system 3 is directly sent to a residual flue gas outlet.
Clean CO finely separated by the second membrane treatment system 4 2 The gas B6 directly enters the second air compressor 6 for compression, and then CO is compressed by capture 2 Interface output of separated high purity CO 2 The waste gas B5 enters the sampling and metering system 5 for judgment, if the CO in the waste gas B9 2 If the content is lower than a preset value (the value can be set manually), directly discharging; otherwise, the first air compressor 2 is entered for circulation.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. A CCUS all-in-one machine which characterized in that: comprises a filtering and purifying treatment system (1), a compressed air source system, a membrane separation system and a sampling and metering system (5); the compressed air source system comprises a first air compressor (2), a second air compressor (6) and a third air compressor (7), and the membrane separation system comprises a first membrane treatment system (3) and a second membrane treatment system (4);
an inlet of the filtering and purifying treatment system (1) is connected with a flue gas inlet, a waste gas outlet of the filtering and purifying treatment system (1) is connected with a residual flue gas outlet, and a purifying outlet of the filtering and purifying treatment system (1) is connected with the first membrane treatment system (3) after being connected with the first air compressor (2);
a purification separation outlet of the first membrane treatment system (3) is connected with a third air compressor (7) and then connected with a second membrane treatment system (4), and a tail gas outlet of the first membrane treatment system (3) is directly connected with a residual flue gas outlet;
the purification and separation outlet of the second membrane treatment system (4) is connected with a second air compressor (6) and then is connected with a CO capturing and compressing device 2 The tail gas outlet of the second membrane treatment system (4) is connected with a sampling and metering system (5);
the sampling and metering system (5) is used for judging CO in the waste gas 2 Whether the content reaches the circulation standard or not, a tail gas outlet of the sampling and metering system (5) is connected with a residual flue gas outlet, and a circulation port of the sampling and metering system (5) is connected to an inlet of the first air compressor (2).
2. The CCUS integrator of claim 1, wherein: the principle that the sampling and metering system (5) judges whether the circulation standard is met is that CO in the waste gas 2 Whether the content is lower than a preset value or not, if so, discharging the waste gas from a tail gas outlet of the sampling and metering system (5); otherwise, the waste gas is connected into the inlet of the first air compressor (2) for circulation through the circulation port of the sampling and metering system (5).
3. The CCUS all-in-one machine of claim 1, wherein: filtration purification processing system (1) is including oil water separator (11), ultra-precision filter (12) and preheating control system (13) that set gradually along the flue gas treatment direction, oil water separator (11) and ultra-precision filter (12) are used for the preliminary treatment of waste gas, preheating control system (13) are including temperature controller and tubulose electric heater for heat the regulation of admitting air in the within range of settlement.
4. The CCUS all-in-one machine of claim 1, wherein: the first membrane treatment system (3) is provided with a flat organic molecular membrane and is used for treating CO-containing substances through pressure difference 2 The gas is initially separated.
5. The CCUS all-in-one machine of claim 1, wherein: the second membrane treatment system (4) comprises a hollow fiber membrane component (41), a heating desorption tank (42), a rich solution circulating pump (43) and a barren solution circulating pump (44), the flue gas discharged by the third air compressor (7) passes through the hollow fiber membrane component (41) to react with the MDEA solution, the rich solution is pumped into the heating desorption tank (42) through the rich solution circulating pump (43) to be heated for desorption, the desorbed barren solution returns to the hollow fiber membrane component (41) through the barren solution circulating pump (44), and CO released by desorption is desorbed 2 Compressed by a second air compressor (6) and then discharged.
6. The CCUS all-in-one machine of claim 1, wherein: the sampling and metering system (5) comprises a purity control valve and a flowmeter, and concentration flow of the permeating gas and the tail gas is controlled by adjusting the purity control valve and the flowmeter.
7. The CCUS all-in-one machine of claim 1, wherein: still include container (8), filtration purification processing system (1), compressed air source system, membrane separation system and sample measurement system (5) concentrate on inside container (8), container (8) are equipped with 4 external interfaces, including flue gas entry, residual flue gas export, entrapment compression CO 2 Interface, power supply interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210649904.1A CN115025595A (en) | 2022-06-09 | 2022-06-09 | CCUS all-in-one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210649904.1A CN115025595A (en) | 2022-06-09 | 2022-06-09 | CCUS all-in-one |
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| Publication Number | Publication Date |
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| CN115025595A true CN115025595A (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210649904.1A Pending CN115025595A (en) | 2022-06-09 | 2022-06-09 | CCUS all-in-one |
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Citations (6)
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|---|---|---|---|---|
| US20110005272A1 (en) * | 2008-05-12 | 2011-01-13 | Membrane Technology And Research, Inc. | Process for separating carbon dioxide from flue gas using parallel carbon dioxide capture and sweep-based membrane separation steps |
| CN102228772A (en) * | 2011-07-11 | 2011-11-02 | 中国石油化工集团公司 | Process method for capturing carbon dioxide in flue gas through membrane absorption of amino solution |
| CN107708840A (en) * | 2015-05-29 | 2018-02-16 | 俄亥俄州创新基金会 | From gas flow separation CO2Method |
| CN207805334U (en) * | 2017-11-27 | 2018-09-04 | 北京集封环能科技有限责任公司 | The trapping retracting device of carbon dioxide in flue gas |
| CN112588088A (en) * | 2020-10-27 | 2021-04-02 | 中石化南京化工研究院有限公司 | Device and method for inhibiting corrosion of membrane separation carbon dioxide capture process |
| CN112691510A (en) * | 2021-03-24 | 2021-04-23 | 天津市博昱科技服务有限公司 | Water-soluble organic waste gas recovery system and process thereof |
-
2022
- 2022-06-09 CN CN202210649904.1A patent/CN115025595A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110005272A1 (en) * | 2008-05-12 | 2011-01-13 | Membrane Technology And Research, Inc. | Process for separating carbon dioxide from flue gas using parallel carbon dioxide capture and sweep-based membrane separation steps |
| CN102228772A (en) * | 2011-07-11 | 2011-11-02 | 中国石油化工集团公司 | Process method for capturing carbon dioxide in flue gas through membrane absorption of amino solution |
| CN107708840A (en) * | 2015-05-29 | 2018-02-16 | 俄亥俄州创新基金会 | From gas flow separation CO2Method |
| CN207805334U (en) * | 2017-11-27 | 2018-09-04 | 北京集封环能科技有限责任公司 | The trapping retracting device of carbon dioxide in flue gas |
| CN112588088A (en) * | 2020-10-27 | 2021-04-02 | 中石化南京化工研究院有限公司 | Device and method for inhibiting corrosion of membrane separation carbon dioxide capture process |
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Non-Patent Citations (1)
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