Cyclic thermal swing adsorption with direct heat transfer
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/04
B01J-020/22
B01J-020/26
B01J-020/18
B01J-020/32
B01D-053/14
출원번호
US-0274382
(2016-09-23)
등록번호
US-9968882
(2018-05-15)
발명자
/ 주소
Weston, Simon C.
Afeworki, Mobae
Minhas, Bhupender S.
Gupta, Ramesh
Caram, Hugo S.
Chaudhury, Manoj K.
Thomann, Hans
Vroman, Hilda B.
Nines, Meghan
출원인 / 주소
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
대리인 / 주소
Ward, Andrew T.
인용정보
피인용 횟수 :
0인용 특허 :
8
초록▼
A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reduci
A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.
대표청구항▼
1. A method for adsorbing a gas component, comprising: exposing an input fluid comprising a first gas component and a heat transfer liquid to adsorbent particles to produce an adsorbent effluent having a lower concentration of the first gas component than the input fluid, the input fluid comprising
1. A method for adsorbing a gas component, comprising: exposing an input fluid comprising a first gas component and a heat transfer liquid to adsorbent particles to produce an adsorbent effluent having a lower concentration of the first gas component than the input fluid, the input fluid comprising a first temperature prior to contacting the adsorbent particles, a loading of adsorbed first gas component in the adsorbent particles at the end of the exposing being at least about 0.01 mol/kg; anddesorbing at least a portion of the first gas component from the adsorbent particles at a desorption temperature greater than the first temperature. 2. The method of claim 1, wherein the first gas component comprises CO2. 3. The method of claim 1, wherein the adsorbent particles comprise a Type V adsorbent. 4. The method of claim 1, wherein a loading of adsorbed first gas component in the adsorbent particles after the desorbing is less than 50% of the loading of first gas component in the adsorbent particles at the end of the exposing. 5. The method of claim 1, wherein the desorption temperature is greater than the first temperature by at least about 25° C. 6. The method of claim 1, wherein the adsorbent particles are exposed to the heat transfer liquid at a second temperature for a period of time prior to the exposing the adsorbent particles to the input fluid at the first temperature. 7. The method of claim 6, wherein the second temperature differs from the first temperature by about 10° C. or less. 8. The method of claim 1, wherein the loading of the adsorbed first gas component in the adsorbent particles after the desorbing is about 0.5 mol/kg or less. 9. The method of claim 1, wherein the loading of the adsorbed first gas component in the adsorbent particles after the desorbing is about 0.5 mol/kg to about 3.0 mol/kg. 10. The method of claim 1, wherein the adsorbent particles comprise a Type I adsorbent, a Type V adsorbent, or a combination thereof. 11. The method of claim 1, wherein the exposing the input fluid to the adsorbent particles comprises exposing the input fluid to the adsorbent particles in a slurry contactor, a fluidized bed contactor, a trickle bed contactor, or a combination thereof. 12. The method of claim 11, wherein the input fluid is exposed to the adsorbent particles in a trickle bed contactor, the first gas component and the input fluid being introduced into the trickle bed contactor as separate fluids. 13. The method of claim 1, wherein the input fluid comprises a variable amount of the heat transfer liquid during the exposing. 14. The method of claim 13, wherein the input fluid comprises one or more pulses of the heat transfer liquid, a flow rate of the heat transfer liquid during a pulse being at least about 25% greater than an average flow rate of the heat transfer liquid during the exposing. 15. The method of claim 1, wherein the adsorbent particles comprise functionalized adsorbent particles. 16. The method of claim 15, wherein the heat transfer liquid does not substantially wet the functionalized adsorbent particles. 17. The method of claim 1, wherein the desorbing of the adsorbed first gas component comprises forming a desorption effluent comprising at least about 90 vol % of the first gas component. 18. The method of claim 1, wherein the adsorbent particles are coated with an omniphobic coating. 19. The method of claim 1 or 18, wherein the adsorbent particles comprise one of Zeolite 5A, mmen-Mg2(dobpdc), and Zeolite 13X. 20. The method of claim 18, wherein the omniphobic coating is applied via one of chemical vapor deposition and rotary chemical vapor deposition. 21. The method of claim 18, wherein the omniphobic coating is trichloro(1H,1H,2H,2H-perfluorooctyl)silane. 22. A method for adsorbing CO2, comprising: exposing an input fluid comprising CO2 and a heat transfer liquid to adsorbent particles to produce an adsorbent effluent having a lower concentration of CO2 than the input fluid, the input fluid comprising a first temperature prior to contacting the adsorbent particles, a loading of adsorbed CO2 in the adsorbent particles at the end of the exposing being at least about 0.01 mol/kg; anddesorbing CO2 from the adsorbent particles at a desorption temperature greater than the first temperature. 23. A method for adsorbing a gas component, comprising: exposing an input fluid comprising a first gas component and a heat transfer liquid to adsorbent particles having a Type V adsorption isotherm to produce an adsorbent effluent having a lower concentration of the first gas component than the input fluid, the input fluid comprising a first temperature prior to contacting the adsorbent particles, a loading of adsorbed first gas component in the adsorbent particles at the end of the exposing being at least about 0.01 mol/kg; anddesorbing at least a portion of the first gas component from the adsorbent particles at a desorption temperature greater than the first temperature. 24. A method for adsorbing a gas component, comprising: exposing an input fluid comprising a first gas component and a heat transfer liquid to adsorbent particles to produce an adsorbent effluent having a lower concentration of the first gas component than the input fluid, the input fluid comprising a first temperature prior to contacting the adsorbent particles, a loading of adsorbed first gas component in the adsorbent particles at the end of the exposing being at least about 0.01 mol/kg; anddesorbing at least a portion of the first gas component from the adsorbent particles at a desorption temperature, the desorption temperature being less than about 10° C. different from the first temperature. 25. A system for separation of CO2 from a gas flow, the system comprising: a contactor comprising a bed of adsorbent particles, the adsorbent particles comprising mmen-Mg2(dobpdc) having an adsorbent loading of at least about 3.0 moles of CO2 per kilogram of adsorbent; anda heat transfer liquid in fluid connectivity with the contactor. 26. The system of claim 25, wherein the contactor comprises a trickle bed contactor.
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이 특허에 인용된 특허 (8)
Gupta Ramesh ; Frederick Jeffrey W., Fluid distribution across a particulate bed.
Eddaoudi, Mohamed; Zaworotko, Michael J.; Nugent, Patrick; Burd, Stephen; Belmabkhout, Youssef; Shekhah, Osama, Metal-organic materials (MOMs) for CO2 adsorption and methods of using MOMs.
Yeganeh, Mohsen S; Minhas, Bhupender S.; Mizan, Tahmid I; Zhao, Sufang; Flynn, Richard W., Method of protecting a solid adsorbent and a protected solid adsorbent.
Leta, Daniel P.; Kamakoti, Preeti; Deckman, Harry W.; Ravikovitch, Peter I.; Anderson, Thomas N., Temperature swing adsorption process for the separation of target species from a gas mixture.
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