CN207299713U - A kind of co 2 liquefaction device of flue gas carbon trapping system - Google Patents
A kind of co 2 liquefaction device of flue gas carbon trapping system Download PDFInfo
- Publication number
- CN207299713U CN207299713U CN201720965373.1U CN201720965373U CN207299713U CN 207299713 U CN207299713 U CN 207299713U CN 201720965373 U CN201720965373 U CN 201720965373U CN 207299713 U CN207299713 U CN 207299713U
- Authority
- CN
- China
- Prior art keywords
- entrance
- low temperature
- gas
- outlet
- compressor
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model discloses a kind of co 2 liquefaction device of flue gas carbon trapping system, the device includes surge tank, surge tank entrance is connected with the regeneration feed channel from carbon trapping system, surge tank outlet is connected with low temperature dehumidification device high temperature side entrance, and low temperature dehumidification device high temperature side outlet is sequentially connected activated carbon tower, molecular sieve tower, the first CO2Compressor, condenser, throttle valve and gas-liquid separator, gas-liquid separator liquid outlet are connected with booster pump inlet, boosting pump discharge and liquid CO2Reservoir inlet is connected, and gas-liquid separator gas vent is connected with low temperature dehumidification device low temperature side entrance, low temperature dehumidification device low temperature side outlet and the 2nd CO2Suction port of compressor is connected, the 2nd CO2Compressor outlet is connected with condenser inlet；The utility model utilizes High-pressure supercritical CO2Throttling expansion realizes that itself liquefies, and then realizes liquid CO by booster supercharging2Supercooling, so as to eliminate independent ammonia cold refrigeration system.
Description
Technical field
The utility model belongs to reduction of greenhouse gas discharge and gas liquefaction technical field, and in particular to a kind of flue gas carbon trapping
The co 2 liquefaction device of system.
Background technology
Carbon dioxide (CO2) it is most important greenhouse gases.During industrial production (oil, electric power, chemical industry, cement etc.)
Substantial amounts of carbon dioxide is discharged to air, causes global climate change, threatens the sustainable development of human civilization society
Exhibition.
Smoke carbon dioxide capture, using with sealing (CCUS) technology up for safekeeping be widely regarded as realizing that extensive greenhouse gases subtract
Row, the important technology approach of containment climate change.Being as the chemical absorption method of carbon dioxide absorption solvent using organic amine ought
The smoke carbon dioxide capture technology of preceding mainstream, has developed megaton technical grade demonstration plant.Due in CCUS technology chains
Carbon dioxide utilize and have a certain distance with the geographical location of capturing device, it is necessary to by CO with sealing up for safekeeping often2Transported from trap sites
It is defeated to utilization/seal place up for safekeeping.For the ease of transporting the CO, it is necessary to by trapping2Gas liquefies, and is then transported by tank car
It is defeated.
Trapped and regenerated from flue gas by chemical absorption method come carbon dioxide regeneration gas temperature be about 40-50 DEG C,
Pressure is about 150-200kPa (absolute pressure), CO2Purity is about 95%, in addition also nearly 5% moisture and micro O2、N2、
The foreign gases such as NO, ammonia.Conventional liquefaction mode is as shown in Figure 1.
The technological process of conventional liquefaction system is as follows：
CO from carbon trapping system2The buffered tank 1 of regeneration gas (150kPa, 40 DEG C) enters low temperature dehumidification device 2 after buffering
Cool-down dehumidification, removes in regeneration gas about 5% moisture；CO after dehumidifying2Gas is by CO2Compressor 3 is compressed to about
2.5MPa, compressor carry cooling system, by compressed gas cooling to 35~40 DEG C；Compressed CO2Gas, which enters, lives
Property charcoal tower 4 remove the trace amount of foreign gas such as organic volatile VOCs and ammonia, carry out depth dehumidifying subsequently into molecular sieve tower 5,
To meet technical grade CO2Standard；Purified gas is cooled to about -20 DEG C (subcooled liquids) into ammonia cooler 6, and CO is subcooled2Liquid
Then liquid CO is injected under the action of system pressure2Storage tank 7 is stored.
Conventional CO2Liquifying method is that core equipment is ammonia cooling system, it is by ammonia compressor 8, ammonia condenser 9, throttle valve 10
Formed with ammonia cooler 6.Ammonia cooler 6 is also known as ammonia evaporator, in ammonia cooler 6, cold side liquefied ammonia evaporation endothermic at -33 DEG C, by heat
Survey high pressure CO2Gas-condensate liquid.The low temperature ammonia steam of 6 cold side outlet port of ammonia cooler enters low temperature dehumidification device 2, will flow through low temperature and removes
The CO that the wet heat of device 2 is surveyed2Air-flow cool-down dehumidification；The ammonia of 2 cold side outlet port of low temperature dehumidification device enters ammonia compressor 8, is compressed to about 1.5
~2MPa, then condenses to 35~40 DEG C, by 10 throttling expansion of throttle valve cooling part occurs for high pressure ammonia by condenser 9
Liquefaction, liquefied ammonia enter ammonia cooler 6, the CO to flowing through ammonia cooler 62Gas carries out cooling liquefaction, completes ammonia refrigeration circulation.
Conventional CO2For liquefaction system using ammonia cold as refrigeration system, ammonia cold needs timing supplement liquefied ammonia, therefore, needs
The storage and transport of liquefied ammonia are carried out in power plant.Liquefied ammonia is a kind of inflammable, with penetrating odor hazardous chemical, therefore electricity
Management and use of the factory for ammonia are very stringent.As it can be seen that seek a kind of CO without using ammonia cold2Liquefaction system, improves power plant
The security of carbon trapping system, is very significant.
The content of the invention
In order to overcome the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of trapping of flue gas carbon
The co 2 liquefaction device of system, utilizes High-pressure supercritical CO2Throttling expansion realizes that itself liquefies, and is then increased by booster
Pressure realizes liquid CO2Supercooling, so as to eliminate independent ammonia cold refrigeration system.
In order to achieve the above object, the utility model adopts the following technical solution：
A kind of co 2 liquefaction device of flue gas carbon trapping system, including surge tank 1,1 entrance of surge tank is with coming from carbon
The regeneration feed channel of trapping system is connected, and the outlet of surge tank 1 is connected with 2 high temperature side entrance of low temperature dehumidification device, and low temperature dehumidification device 2 is high
Warm side outlet is connected with 3 entrance of activated carbon tower, activated carbon tower 3 outlet is connected with 4 entrance of molecular sieve tower, molecular sieve tower 4 outlet and
First CO25 entrance of compressor is connected, the first CO2The outlet of compressor 5 is connected with 6 entrance of condenser, and condenser 6 exports and throttle valve
7 entrances are connected, and the outlet of throttle valve 7 is connected with 8 entrance of gas-liquid separator, 8 liquid outlet of gas-liquid separator and 9 entrance phase of booster
Even, the outlet of booster 9 and liquid CO210 entrance of storage tank is connected, 8 gas vent of gas-liquid separator and 2 low temperature side of low temperature dehumidification device
Entrance is connected, 2 low temperature side outlet of low temperature dehumidification device and the 2nd CO211 entrance of compressor is connected, the 2nd CO2Compressor 11 export with
6 entrance of condenser is connected.
The co 2 liquefaction method of the co 2 liquefaction device of flue gas carbon trapping system described in utility model：
CO from carbon trapping system2The buffered tank 1 of regeneration gas (150kPa, 40 DEG C) enters low temperature dehumidification device 2 after buffering
Cool-down dehumidification, removes in regeneration gas about 5% moisture；；CO after dehumidifying2Gas removes organic wave into activated carbon tower 3
Stimulating food VOCs and trace amount of foreign gas, carry out depth dehumidifying, to meet technical grade CO subsequently into molecular sieve tower 42Standard；Molecule
Sieve the CO that tower 4 flows out2Gas is by the first CO2Compressor 5 is compressed to the supercriticality of 10~15Mpa, then by condenser 6
35~40 DEG C are cooled to, supercritical CO2By 7 throttling expansion of throttle valve, pressure is down to 1.5~2MPa, and temperature is down to -25 DEG C,
CO2Generation partial liquefaction；CO after liquefaction2Separated by knockout drum 8, then boost to 2.5MPa by booster 9, obtain
To the liquid CO of supercooling2, and it is pressed into liquid CO2Storage tank 10 is stored；The not liquefied low temperature that knockout drum 8 is separated
CO2Gas passes through low temperature dehumidification device 2, and CO is surveyed to heat2Gas carries out cool-down dehumidification, then through the 2nd CO2Compressor 11 is compressed to 10
~15MPa's is overcritical, with the first CO2The supercritical CO that compressor 5 exports2Enter condenser 6 after mixing, then throttle
Expansion liquefaction.
With conventional CO2Liquefying plant is compared, and the utility model has following characteristics：
1) routine CO2Liquefying plant is by independent kind of refrigeration cycle, to CO2Product gas carries out indirect heat exchange and reaches cooling
Liquefied purpose；And CO described in the utility model2Liquefying plant does not have independent kind of refrigeration cycle, but by CO2Product gas into
Row compression, throttling expansion reach itself cooling liquefaction.
2) routine CO2Liquefying plant uses ammonia as refrigeration working medium；CO described in the utility model2Liquefying plant is without independent
Kind of refrigeration cycle, therefore be not related to the use of refrigeration working medium.
3) conventional CO2Liquefying plant either CO2Compressor or ammonia compressor pressure are all in below 2.5MPa；This reality
With the new CO2Liquefying plant is related to the high-pressure system of more than 10MPa, higher to pressure requirements.
4) CO described in the utility model2Liquefying plant and routine CO2The energy consumption level of liquefying plant is suitable.
Brief description of the drawings
Fig. 1 is conventional flue gas carbon trapping system co 2 liquefaction schematic device.
Fig. 2 is flue gas carbon trapping system co 2 liquefaction schematic device described in the utility model.Utility model is real
It is new with novel practical novel practical novel practical
Embodiment
The utility model to clearly illustrate, with reference to embodiment and attached drawing, carries out the utility model further detailed
Explanation.Skilled in the art realises that the description below is not the limitation to scope of protection of the utility model, it is any new in this practicality
The improvement and change made on the basis of type, all within the scope of protection of the utility model.
According to the utility model preferred embodiment, the co 2 liquefaction device technique flow of flue gas carbon trapping system and
System and device connection structure is as shown in Figure 2.
A kind of co 2 liquefaction device of flue gas carbon trapping system of the utility model, including following equipment：
Surge tank 1, low temperature dehumidification device 2, activated carbon tower 3, molecular sieve tower 4, CO2Compressor 5, condenser 6, throttle valve 7, gas
Liquid knockout drum 8, booster 9, liquid CO2Storage tank 10, CO2Compressor 11.
Each system of the technique and equipment connection mode are as follows：
1 entrance of surge tank is connected with the regeneration feed channel from carbon trapping system, the outlet of surge tank 1 and low temperature dehumidification device 2
High temperature side entrance is connected, and 2 high temperature side outlet of low temperature dehumidification device is connected with 3 entrance of activated carbon tower, and activated carbon tower 3 exports and molecular sieve
4 entrance of tower is connected, the outlet of molecular sieve tower 4 and the first CO25 entrance of compressor is connected, the first CO2Compressor 5 exports and condenser 6
Entrance is connected, and the outlet of condenser 6 is connected with 7 entrance of throttle valve, and the outlet of throttle valve 7 is connected with 8 entrance of gas-liquid separator, gas-liquid point
It is connected from 8 liquid outlet of device with 9 entrance of booster, the outlet of booster 9 and liquid CO210 entrance of storage tank is connected, gas-liquid separator 8
Gas vent is connected with 2 low temperature side entrance of low temperature dehumidification device, 2 low temperature side outlet of low temperature dehumidification device and the 2nd CO2Compressor 11 enters
Mouth is connected, the 2nd CO2The outlet of compressor 11 is connected with 6 entrance of condenser.
The technological process of system described in the utility model is as follows：
CO from carbon trapping system2The buffered tank 1 of regeneration gas (150kPa, 40 DEG C) enters low temperature dehumidification device 2 after buffering
Cool-down dehumidification, removes in regeneration gas about 5% moisture；；CO after dehumidifying2Gas removes organic wave into activated carbon tower 3
The trace amount of foreign gas such as stimulating food VOCs and ammonia, carries out depth dehumidifying, to meet technical grade CO subsequently into molecular sieve tower 42Mark
It is accurate；The CO that molecular sieve tower 4 flows out2Gas is by the first CO2Compressor 5 is compressed to 10~15MPa (overcritical), then by condensation
Device 6 is cooled to 35~40 DEG C, supercritical CO2By 7 throttling expansion of throttle valve, pressure is down to about 1.5~2MPa, and temperature is down to
About -25 DEG C, CO2Generation partial liquefaction.CO after liquefaction2Separate by knockout drum 8, then boosted to by booster 9
2.5MPa, the liquid CO being subcooled2, and it is pressed into liquid CO2Storage tank 10 is stored.The non-liquid that knockout drum 8 is separated
The low temperature CO of change2Gas passes through low temperature dehumidification device 2, and CO is surveyed to heat2Gas carries out cool-down dehumidification, then through the 2nd CO2Compressor 11
10~15MPa (overcritical) is compressed to, with the first CO2The supercritical CO that compressor 5 exports2Enter condenser 6 after mixing, then
Carry out throttling expansion liquefaction.
Claims (1)
1. a kind of co 2 liquefaction device of flue gas carbon trapping system, including surge tank (1), surge tank (1) entrance is with coming from
The regeneration feed channel of carbon trapping system is connected, it is characterised in that：Surge tank (1) exports and low temperature dehumidification device (2) high temperature side entrance
It is connected, low temperature dehumidification device (2) high temperature side outlet is connected with activated carbon tower (3) entrance, activated carbon tower (3) outlet and molecular sieve tower
(4) entrance is connected, molecular sieve tower (4) outlet and the first CO2Compressor (5) entrance is connected, the first CO2Compressor (5) export with it is cold
Condenser (6) entrance is connected, and condenser (6) outlet is connected with throttle valve (7) entrance, throttle valve (7) outlet and gas-liquid separator (8)
Entrance is connected, and gas-liquid separator (8) liquid outlet is connected with booster (9) entrance, booster (9) outlet and liquid CO2Storage tank
(10) entrance is connected, and gas-liquid separator (8) gas vent is connected with low temperature dehumidification device (2) low temperature side entrance, low temperature dehumidification device (2)
Low temperature side outlet and the 2nd CO2Compressor (11) entrance is connected, the 2nd CO2Compressor (11) exports and condenser (6) entrance phase
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720965373.1U CN207299713U (en) | 2017-08-04 | 2017-08-04 | A kind of co 2 liquefaction device of flue gas carbon trapping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720965373.1U CN207299713U (en) | 2017-08-04 | 2017-08-04 | A kind of co 2 liquefaction device of flue gas carbon trapping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207299713U true CN207299713U (en) | 2018-05-01 |
Family
ID=62448354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720965373.1U Withdrawn - After Issue CN207299713U (en) | 2017-08-04 | 2017-08-04 | A kind of co 2 liquefaction device of flue gas carbon trapping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207299713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300294A (en) * | 2017-08-04 | 2017-10-27 | 中国华能集团清洁能源技术研究院有限公司 | A kind of co 2 liquefaction device and method of flue gas carbon trapping system |
-
2017
- 2017-08-04 CN CN201720965373.1U patent/CN207299713U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300294A (en) * | 2017-08-04 | 2017-10-27 | 中国华能集团清洁能源技术研究院有限公司 | A kind of co 2 liquefaction device and method of flue gas carbon trapping system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107300294A (en) | A kind of co 2 liquefaction device and method of flue gas carbon trapping system | |
| CN102963893B (en) | CO2Collection method and system | |
| US20070101862A1 (en) | Water-from-air using liquid desiccant and vehicle exhaust | |
| CN101906800B (en) | Vacuum dehumidification membrane based device and method for recovering liquid state water from air | |
| CN103274406B (en) | Novel carbon dioxide trapping device performing liquefaction and sublimation | |
| CN108211671B (en) | Energy-saving carbon dioxide regeneration and compression system and method | |
| CN208269505U (en) | A kind of co 2 liquefaction device of flue gas carbon capture system | |
| CN109078447A (en) | A kind of device and method of off-gas recovery dry ice | |
| CN106170667A (en) | A kind of adsorption type heat pump refrigeration power method of combined supply | |
| CN207299713U (en) | A kind of co 2 liquefaction device of flue gas carbon trapping system | |
| CN107715650A (en) | A kind of carbon trapping system regeneration gas heat recovery structure | |
| CN213556279U (en) | Carbon dioxide ammonia method capturing and low-temperature liquefying system of coal-fired power plant | |
| CN204656279U (en) | The absorption type recycling phenylethylene system that a kind of normal pressure is resolved | |
| CN204079928U (en) | A kind of low-temperature fractionation and embrane method coupling EOR extraction gas separating system | |
| CN102441290A (en) | Oil-gas condensing and recycling method based on refrigeration of turbine expansion engine and device thereof | |
| CN207533246U (en) | A kind of carbon trapping system regeneration gas heat reclaim unit | |
| CN106669355B (en) | Integrated oil gas recovery device based on image identification defrosting technology | |
| CN206508753U (en) | Defrost technology integrated oil gas recovering device is recognized based on image | |
| CN103215060A (en) | Evaporable petroleum gas adsorption condensation and comprehensive recovery device | |
| CN104841245A (en) | Condensation and adsorption type formaldehyde recycling device applied to artificial board manufacturing industry and recycling method | |
| CN204254927U (en) | The CO of eddy current separating liquid and injector injection 2two temp, refrigerating system | |
| CN104841241A (en) | Acetone pressurized condensation adsorption type acetone recovery system and recovery method | |
| CN107129826A (en) | A kind of device for recovering oil and gas for gas station | |
| CN204656288U (en) | The condensation of wood-based plate manufacturing adds absorption type formaldehyde retracting device | |
| CN201954916U (en) | CO2 separation and compression integrated device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180501 Effective date of abandoning: 20230530 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180501 Effective date of abandoning: 20230530 |