CN116809044A - Carbon dioxide adsorbent recycling device with waste heat utilization function - Google Patents
Carbon dioxide adsorbent recycling device with waste heat utilization function Download PDFInfo
- Publication number
- CN116809044A CN116809044A CN202311021597.3A CN202311021597A CN116809044A CN 116809044 A CN116809044 A CN 116809044A CN 202311021597 A CN202311021597 A CN 202311021597A CN 116809044 A CN116809044 A CN 116809044A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- adsorbent
- heat exchange
- temperature
- adsorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000003463 adsorbent Substances 0.000 title claims abstract description 49
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 39
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 39
- 239000002918 waste heat Substances 0.000 title claims abstract description 13
- 238000004064 recycling Methods 0.000 title claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000001179 sorption measurement Methods 0.000 claims abstract description 19
- 238000011069 regeneration method Methods 0.000 claims abstract description 17
- 230000008929 regeneration Effects 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims description 2
- 238000003795 desorption Methods 0.000 abstract description 12
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Of Gases By Adsorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model provides a take waste heat utilization's carbon dioxide adsorbent cyclic utilization device, relates to the adsorbent regeneration field, its characterized in that includes a plurality of sets of adsorption equipment, desorption device, heat transfer device and carbon dioxide storage device, and the adsorbent is after the adsorption saturation, realizes the adsorbent desorption through high temperature nitrogen gas, and the high temperature nitrogen gas after the desorption and carbon dioxide mixed gas are connected to heat transfer device through the gas circuit to realize heating nitrogen gas, so that obtain high temperature nitrogen gas for follow-up adsorbent is dry or is the desorption. The adsorption device is internally provided with an adsorbent for capturing carbon dioxide, and is used for capturing the carbon dioxide in the flue gas, the upper end of the adsorption device is connected with a flue, and the lower end of the adsorption device is connected with a carbon dioxide liquefying storage device and is used for sealing and storing the carbon dioxide desorbed from the adsorbent.
Description
Technical Field
The invention relates to the field of carbon dioxide capture, in particular to a carbon dioxide adsorbent recycling device with heat recovery.
Technical Field
The excessive emission of carbon dioxide causes a greenhouse effect due to the production and living of humans, particularly the combustion of fossil fuels, leading to the rise of sea level, desertification of land, and the reduction of biodiversity, etc. secondary disasters occur.
The existing carbon trapping technology comprises methods such as an adsorption method, an organic solvent absorption method, a low-temperature separation method, a membrane separation method and the like, the existing carbon trapping technology on the market mainly comprises amine group washing, and although the amine group washing is a widely used post-combustion carbon dioxide trapping technology, certain limitations exist, such as amine loss, corrosion and high energy cost, and the adsorption method utilizes a solid adsorbent to trap carbon dioxide and has the characteristics of low cost, simple preparation method and the like, and the carbon trapping technology stands out from a plurality of trapping modes.
The adsorption capacity of the adsorbent to carbon dioxide comes from physical adsorption provided by micropores and chemical adsorption provided by surface functional groups, and after the adsorbent reaches adsorption saturation in industry, the adsorbent is recovered by adopting a thermal regeneration method, a biological regeneration method, a wet oxidation regeneration method, a chemical agent regeneration method and the like to recover the adsorption capacity, wherein the thermal regeneration method is thorough in regeneration, secondary pollutants are less, and a great amount of heat is directly discharged by the thermal regeneration method, a great amount of fossil fuel is consumed by providing the required energy, and a great amount of carbon dioxide is discharged.
There is no method for recycling heat discharged by thermal desorption of the adsorbent in the prior art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an adsorbent regeneration recycling system with heat recovery, which utilizes heat generated by the high-temperature air flow to heat nitrogen flow to purge the adsorbent while desorbing the adsorbent, so as to realize the regeneration of the adsorbent.
The aim of the invention is achieved by the following technology:
carbon dioxide adsorbent cyclic utilization device with waste heat utilization function: including a plurality of sets of adsorption equipment, desorption device, heat transfer device and carbon dioxide storage device, characterized by: after the adsorption saturation, the adsorbent is desorbed through high-temperature nitrogen, and the desorbed high-temperature nitrogen and carbon dioxide mixed gas is connected to a heat exchange device through a gas circuit, so that the nitrogen is heated, and the high-temperature nitrogen is obtained and used for subsequent adsorbent drying or desorption.
The adsorption device is internally provided with an adsorbent for capturing carbon dioxide and is used for capturing carbon dioxide in the flue gas, the lower end of the adsorbent is connected with a flue, and the upper end of the adsorbent is connected with a tail gas treatment device and is used for recycling other harmful components.
The upper end and the lower end of the desorption device are both connected with an airflow pipeline, the lower end is communicated with high-temperature nitrogen airflow for desorption of carbon dioxide in the adsorbent so as to realize regeneration of the adsorbent, and the high-temperature nitrogen and carbon dioxide mixed airflow generated at the upper end reaches the heat exchange device through the pipeline.
The heat exchange device comprises the airflow pipeline, a set of spiral condensing pipe, a set of nitrogen airflow pipeline and a set of high-temperature oil pump.
The heat exchange device drives oil in the spiral condensing tube through the high-temperature oil pump so as to achieve the purpose of heat exchange, thereby realizing cooling of one path of tail gas and heating of the other path of nitrogen.
The beneficial effects are that: in order to realize recycling of the adsorbent, the common industrial mode is high-temperature desorption, and the heating process of nitrogen needs a large amount of energy, and along with the combustion of fossil fuel, a large amount of carbon dioxide is easily discharged in the process, so that the use value of the adsorbent is reduced. The invention utilizes the heat of desorption gas to heat nitrogen for desorption or drying of adsorbent.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention
In the figure, the device comprises a 1-adsorbent regeneration device, a 2-heat exchange device, a 3-carbon dioxide liquefaction storage device, a 4-high-pressure nitrogen source, a 5-high-temperature oil pump and a 6-high-temperature nitrogen outlet.
Referring to fig. 1, the specific embodiment of the carbon dioxide adsorbent recycling device with waste heat utilization provided by the invention is as follows:
the carbon dioxide adsorbent recycling device with the waste heat utilization function comprises an adsorbent regenerating device 1, a heat exchange device 2, a carbon dioxide liquefying and storing device 3, a high-pressure nitrogen source 4, a high-temperature oil pump 5 and a high-temperature nitrogen outlet 6.
The carbon dioxide adsorbent recycling device with the waste heat utilization is characterized in that the adsorbent regenerating device 1 is connected with a spiral heat exchange tube of the heat exchange device 2, and high-temperature waste of the adsorbent reaches the carbon dioxide liquefaction storage device 3 through the spiral heat exchange tube for sealing.
The high-pressure nitrogen gas source 4 is connected with the other spiral heat exchange tube of the heat exchange device 2, and the two spiral heat exchange tubes are fixed in a closed pipeline.
The upper and lower closed pipelines in the heat exchange device 2 are respectively provided with 3 high-temperature oil pumps to drive the oil in the pipelines so as to achieve the purpose of heat exchange.
The high-pressure nitrogen source 4 is connected with a spiral heat exchange tube of the heat exchange device 2, and the generated nitrogen flow is fully contacted with high-temperature oil through the spiral heat exchange tube so as to achieve the purpose of heat exchange.
The high temperature nitrogen outlet 6 can be connected with other devices to achieve the aim of regenerating the adsorbent or pre-treating the adsorbent.
Claims (6)
1. The utility model provides a take carbon dioxide adsorbent cyclic utilization device of waste heat utilization which characterized in that: comprises a 1-adsorbent regeneration device, a 2-heat exchange device, a 3-carbon dioxide liquefaction storage device, a 4-high-pressure nitrogen source, a 5-high-temperature oil pump and a 6-high-temperature nitrogen outlet.
2. The carbon dioxide adsorbent recycling device with waste heat utilization according to claim 1, wherein: the adsorption regeneration device 1 is connected with a spiral pipe in the heat exchange device 2, and the other end of the spiral pipe in the heat exchange device 2 is connected with the carbon dioxide liquefying storage device 3.
3. The carbon dioxide adsorbent recycling device with waste heat utilization according to claim 1, wherein: the high-pressure nitrogen source 4 is connected with a spiral pipe in the heat exchange device 2 through a pipeline, and the other end of the spiral pipe in the heat exchange device 2 is provided with a high-temperature nitrogen outlet 6 for drying treatment before adsorption or regeneration after adsorption of the adsorbent.
4. The carbon dioxide adsorbent recycling device with waste heat utilization according to claim 1, wherein: in the heat exchange device, two spiral pipes are arranged in a closed container filled with oil, and a plurality of high-temperature oil pumps 5 are arranged in the closed container.
5. The carbon dioxide adsorbent recycling apparatus with waste heat utilization according to claim 1, wherein: in the adsorbent regeneration device, the adsorbent is subjected to high-temperature nitrogen purging to realize adsorption performance regeneration, the generated high-temperature tail gas is cooled by the heat exchange device 2, and the high-temperature tail gas is introduced into the carbon dioxide liquefaction storage device to realize liquefaction storage.
6. The carbon dioxide adsorbent recycling apparatus with waste heat utilization according to claim 1, wherein: the high-pressure nitrogen source 4 generates normal-temperature nitrogen flow, and the contact time and the contact area between the high-pressure nitrogen source and high-temperature hot oil are increased by utilizing the spiral heat exchange tube when the high-pressure nitrogen source passes through the heat exchange device 2, so that the effect of heating nitrogen is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311021597.3A CN116809044A (en) | 2023-08-15 | 2023-08-15 | Carbon dioxide adsorbent recycling device with waste heat utilization function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311021597.3A CN116809044A (en) | 2023-08-15 | 2023-08-15 | Carbon dioxide adsorbent recycling device with waste heat utilization function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116809044A true CN116809044A (en) | 2023-09-29 |
Family
ID=88127701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311021597.3A Pending CN116809044A (en) | 2023-08-15 | 2023-08-15 | Carbon dioxide adsorbent recycling device with waste heat utilization function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116809044A (en) |
-
2023
- 2023-08-15 CN CN202311021597.3A patent/CN116809044A/en active Pending
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