IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0552685
(2009-09-02)
|
등록번호 |
US-8137439
(2012-03-20)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Air Liquide Process & Construction, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
2 |
초록
▼
A process for the recovery of CO2 from a flue gas is provided. This process includes compressing a flue gas to a first pressure, cooling the flue gas to a first temperature, and drying flue gas by a drying means. This process includes adsorbing CO2 in a first adsorbent bed, wherein the first adsorbe
A process for the recovery of CO2 from a flue gas is provided. This process includes compressing a flue gas to a first pressure, cooling the flue gas to a first temperature, and drying flue gas by a drying means. This process includes adsorbing CO2 in a first adsorbent bed, wherein the first adsorbent bed is isothermally maintained by a first cooling means. The process includes pressurizing the first adsorbent bed to a second pressure with CO2 at a second temperature, wherein the second pressure is greater than the initial pressure, wherein the second temperature is greater than the initial temperature.
대표청구항
▼
1. A process for the recovery of CO2 from a flue gas, comprising, a) compressing a flue gas to a first pressure,b) cooling the flue gas to a first temperature,c) adsorbing CO2 in a first adsorbent bed, wherein said first adsorbent bed is at said first temperature and said first pressure, wherein sai
1. A process for the recovery of CO2 from a flue gas, comprising, a) compressing a flue gas to a first pressure,b) cooling the flue gas to a first temperature,c) adsorbing CO2 in a first adsorbent bed, wherein said first adsorbent bed is at said first temperature and said first pressure, wherein said first adsorbent bed is isothermally maintained by a first cooling means,d) pressurizing said first adsorbent bed to a second pressure with CO2 at a second temperature, wherein said second pressure is greater than said first pressure, wherein said second temperature is greater than said first temperature,e) heating said first adsorbent bed to a third temperature with a first heating means, thereby increasing said first adsorbent bed to a third pressure, wherein said third temperature is greater than said second temperature, wherein said third pressure is greater than said second pressure, thereby releasing a first portion of adsorbed CO2,f) lowering the pressure of said first adsorbent bed in at least one more stage, while said first adsorbent bed is isothermally maintained at said third temperature by a second heating means, thereby releasing at least a second portion of adsorbed CO2,g) cooling the released CO2 with at least a second cooling means,h) sending said cooled CO2 to one or more surge drums,i) purging said first adsorption bed with a N2 stream, simultaneously cooling said first adsorption bed with a third cooling means,j) compressing said cooled CO2 from said surge drums in a multi-stage compressor, wherein the pressure of the CO2 from each surge drum is approximately equal to the inter-stage pressure into which it is admitted, andk) regenerating said first adsorption bed with a N2 stream, wherein said regeneration stream is heated by a third heating means. 2. The process of claim 1, further comprising b′) drying flue gas by a drying means. 3. The process of claim 1, wherein said first pressure is between about 0.1 and about 2.0 barg. 4. The process of claim 3, wherein said first pressure is between about 0.3 and about 0.7 barg. 5. The process of claim 1, wherein said first temperature is between about 5 and about 25 C. 6. The process of claim 1, wherein said first temperature is between about 5 and about 10 C. 7. The process of claim 2, wherein said drying means is selected from the group consisting of silica gel, alumina, molecular sieve, and any combination thereof. 8. The process of claim 2, wherein said drying means is contact with a glycol solution. 9. The process of claim 1, wherein said first cooling means comprises cooling said first adsorption bed with glycol circulating in coils. 10. The process of claim 1, wherein said second pressure is between about 10 and about 10 bar. 11. The process of claim 1, wherein said first adsorption bed pressurization comprises either 3 or 4 stages of pressurization. 12. The process of claim 1, wherein said pressurization is obtained from CO2 stored in said surge drums. 13. The process of claim 1, wherein at least one of said first heating means, said second heating means, or said third heating means comprises hot glycol. 14. The process of claim 1, wherein said third temperature is between about 250 and about 350 c. 15. The process of claim 1, wherein said third pressure is between about 20 and about 25 barg. 16. The process of claim 1, wherein said second cooling means comprises glycol. 17. The process of claim 1, wherein said third cooling means comprises glycol. 18. The process of claim 1, wherein adsorption step c) is performed in multiple vessels in parallel. 19. The process of claim 18, wherein there are one or more vessels simultaneously performing regeneration steps d-k. 20. The process of claim 1, wherein the heat required for at least one of said first heating means, said second heating means, and said third heating means is obtained by indirect heat exchange with a source selected from the group consisting of flue gas, process syngas of SMR, compressor inter-stage coolers and steam.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.