Dual integrated PSA for simultaneous power plant emission control and enhanced hydrocarbon recovery
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/047
C10L-003/10
F01K-023/10
E21B-043/16
F01K-007/16
F02C-003/00
E21B-041/00
출원번호
US-0339987
(2016-11-01)
등록번호
US-10125641
(2018-11-13)
발명자
/ 주소
Sundaram, Narasimhan
Thomann, Hans
Mittricker, Franklin F.
Starcher, Loren
출원인 / 주소
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
대리인 / 주소
Wrkich, Joseph E.
인용정보
피인용 횟수 :
0인용 특허 :
15
초록▼
Systems and methods are provided for combined cycle power generation and enhanced hydrocarbon production where emission gases during power generation are separated by adsorption and applied to facilitate extraction of hydrocarbons from a reservoir. A power generation plant passes exhaust gas to a fi
Systems and methods are provided for combined cycle power generation and enhanced hydrocarbon production where emission gases during power generation are separated by adsorption and applied to facilitate extraction of hydrocarbons from a reservoir. A power generation plant passes exhaust gas to a first swing adsorption reactor. The first swing adsorption reactor adsorbs the CO2 from the exhaust gas. An adsorption cycle of the first swing adsorption reactor is variable. An injection well injects the CO2 adsorbed by the first swing adsorption reactor in a hydrocarbon reservoir. A production well that is in communication with the injection well produces a mixture of hydrocarbons and CO2. A second swing adsorption reactor purifies the produced hydrocarbons by adsorbing the produced CO2 from the production well.
대표청구항▼
1. A method, comprising: passing exhaust gas from a power generation plant to a first swing adsorption reactor, wherein the exhaust gas includes CO2 and N2;adsorbing the CO2 from the exhaust gas on a first adsorbent material of the first swing adsorption reactor, wherein an adsorption cycle of the f
1. A method, comprising: passing exhaust gas from a power generation plant to a first swing adsorption reactor, wherein the exhaust gas includes CO2 and N2;adsorbing the CO2 from the exhaust gas on a first adsorbent material of the first swing adsorption reactor, wherein an adsorption cycle of the first swing adsorption reactor is variable;injecting the CO2 adsorbed by the first swing adsorption reactor, along with CH4 from a production well, in a hydrocarbon reservoir by using an injection well;producing a mixture of hydrocarbons, including at least CH4, and CO2 by using the production well, which is in communication with the injection well; andpurifying the mixture of hydrocarbons, which includes at least a mixture of CH4and CO2 by adsorbing the CO2 mixed with the mixture of hydrocarbons on a second adsorbent material of a second swing adsorption reactor, wherein a mixture of CO2 adsorbed by the second swing adsorption reactor, steam, and CH4 from the production well are used to purge the first swing adsorption reactor, and an amount of steam used in the purge of the first swing adsorption reactor increases as an amount of CO2 used to produce the mixture hydrocarbons increases. 2. The method of claim 1, wherein a N2 stream unadsorbed by the first swing adsorption reactor exits the first swing adsorption reactor at a pressure that is substantially the same as a pressure of the exhaust gas from the power generation plant. 3. The method of claim 1, further comprising: recovering a N2 stream unadsorbed by the first swing adsorption reactor. 4. The method of claim 1, further comprising: purging the second swing adsorption reactor with a stream of N2 unadsorbed by the first swing adsorption reactor. 5. The method of claim 1, further comprising: feeding at least a portion of the purified hydrocarbons back into the power generation plant and generating power. 6. The method of claim 1, further comprising: varying the adsorption cycle of the first swing adsorption reactor to adjust composition of adsorbed CO2 based on a composition of hydrocarbons in the hydrocarbon reservoir. 7. The method of claim 6, wherein the composition of the hydrocarbons in the hydrocarbon reservoir varies with age of the reservoir. 8. The method of claim 1, wherein at least one of the first swing adsorption reactor and the second swing adsorption reactor is a high-temperature reactor. 9. The method of claim 1, further comprising: purging the second swing adsorption reactor with at least one of a stream of CO2 and a stream of CH4 flowing from the production well. 10. A system, comprising: a power generation plant that produces exhaust gas, wherein the exhaust gas includes CO2 and N2;a first swing adsorption reactor, wherein the power generation plant passes the exhaust gas to the first swing adsorption reactor, wherein the first swing adsorption reactor adsorbs the CO2from the exhaust gas on a first adsorbent material of the first swing adsorption reactor, and wherein an adsorption cycle of the first swing adsorption reactor is variable;an injection well that injects the CO2 adsorbed by the first swing adsorption reactor along with CH4 from a production well, in a hydrocarbon reservoir;the production well that is in communication with the injection well and that produces a mixture of hydrocarbons, including at least CH4, and CO2; anda second swing adsorption reactor that purifies the mixture of hydrocarbons, which includes at least a mixture of CH4 and CO2 , from the production well by adsorbing the CO2 mixed with the mixture of hydrocarbons on a second adsorbent material of the second swing adsorption reactor, wherein a mixture of CO2adsorbed by the second swing adsorption reactor, steam, and CH4 from the production well are used to purge the first swing adsorption reactor, and an amount of steam used in the purge of the first swing adsorption reactor increases as an amount of CO2 used to produce the mixture hydrocarbons increases. 11. The system of claim 10, wherein the adsorption cycle of the first swing adsorption reactor is varied to adjust composition of adsorbed CO2 based on a composition of hydrocarbons in the hydrocarbon reservoir. 12. The system of claim 10, wherein at least a portion of the purified hydrocarbons are fed back into the power generation plant to generate power.
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이 특허에 인용된 특허 (15)
Benkmann Christian (Munich DEX), Adsorption process for the separation of gaseous mixtures.
Keefer, Bowie G.; Babicki, Matthew L.; Boulet, Andre Jason Joseph; Pelman, Aaron M.; Sellars, Brian G.; Roy, Surajit, Gas separation by combined pressure swing and displacement purge.
Northrop, P. Scott; Wu, Francis S.; Wu, legal representative, Margaret; Sundaram, Narasimhan, Method of purifying hydrocarbons and regeneration of adsorbents used therein.
Corma Canos, Avelino; Palomino Roca, Miguel; Rey Garcia, Fernando; Valencia Valencia, Susana, Use of a microporous crystalline material of zeolitic nature with RHO structure in natural gas processing.
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