Device and method for separating a gas mixture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/22
C10L-003/10
출원번호
US-0377231
(2010-04-16)
등록번호
US-8828120
(2014-09-09)
우선권정보
AT-A 900/2009 (2009-06-10)
국제출원번호
PCT/AT2010/000117
(2010-04-16)
§371/§102 date
20120112
(20120112)
국제공개번호
WO2010/141963
(2010-12-16)
발명자
/ 주소
Szivacz, Johannes
Harasek, Michael
출원인 / 주소
Axiom Angewandte Prozesstechnik Ges. m.b.H.
대리인 / 주소
Collard & Roe, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
15
초록▼
A device for separating a gas mixture into product gas and offgas by way of gas permeation includes four membrane units and a compressor connected upstream of the first membrane unit. The membrane units have a gas inlet, a retentate outlet and a permeate outlet. Lines connect the membrane units to e
A device for separating a gas mixture into product gas and offgas by way of gas permeation includes four membrane units and a compressor connected upstream of the first membrane unit. The membrane units have a gas inlet, a retentate outlet and a permeate outlet. Lines connect the membrane units to each other and to the compressor. Product gas is obtained via the permeate outlet of the second membrane unit and offgas via the retentate outlet of the first membrane unit. Additional product gas is obtained via the retentate outlet of an upstream membrane unit and additional offgas is obtained via the permeate outlet of a further upstream membrane unit. A method includes use of the device to separate a gas mixture into product gas and offgas.
대표청구항▼
1. A device for separating a gas mixture into product gas and offgas by way of gas permeation, the device comprising a first membrane unit comprising a gas inlet, a retentate outlet, and a permeate outlet,a second membrane unit comprising a gas inlet, a retentate outlet, and a permeate outlet,a firs
1. A device for separating a gas mixture into product gas and offgas by way of gas permeation, the device comprising a first membrane unit comprising a gas inlet, a retentate outlet, and a permeate outlet,a second membrane unit comprising a gas inlet, a retentate outlet, and a permeate outlet,a first compressor placed upstream from the first membrane unit and comprising an intake side,an upstream membrane unit comprising a gas inlet, a retentate outlet, and a permeate outlet, andat least one other membrane unit comprising a gas inlet, a retentate outlet and a permeate outlet and disposed upstream from the upstream membrane unit,a first line connecting the retentate outlet of the first membrane unit to the gas inlet of the second membrane unit,a second line connecting the permeate outlet of the second membrane unit on the intake side with the first compressor or with a gas supply leading into the first compressor,a third line connecting the first compressor with the gas inlet of the first membrane unit,a fourth line connecting the permeate outlet of the upstream membrane unit with the gas supply of the first compressor, anda fifth line connecting the retentate outlet of the at least one other membrane unit with the gas inlet of the upstream membrane unit,wherein the product gas is obtained via the retentate outlet of the second membrane unit,wherein the offgas is obtained via the permeate outlet of the first membrane unit,wherein additional product gas is obtained via the retentate outlet of the upstream membrane unit, andwherein additional offgas is obtained via the permeate outlet of the at least one other membrane unit. 2. The device according to claim 1, further comprising a sixth line connecting the retentate outlet of the upstream membrane unit with the retentate outlet of the second membrane unit so that the product gas is jointly removed from the second membrane unit and from the upstream membrane unit. 3. The device according to claim 1, further comprising a sixth line connecting the permeate outlet of the at least one other membrane unit with the permeate outlet of the first membrane unit so that the offgas is jointly removed from the first membrane unit and from the at least one other membrane unit. 4. The device according to claim 1, wherein, and wherein the device further comprises a second compressor placed upstream from the gas inlet of the at least one other membrane unit. 5. A method for separating a gas mixture into product gas and offgas by way of gas permeation, the method comprising steps of using retentate of a first membrane unit as feed gas of a second membrane unit,mixing permeate of the second membrane unit with pressurized feed gas of the first membrane unit,removing retentate of the second membrane unit as the product gas,removing permeate of the first membrane unit as the offgas,using permeate of an upstream membrane unit as feed gas of the first membrane unit,using retentate of an additional upstream membrane unit as feed gas of the upstream membrane unit,obtaining retentate of the upstream membrane unit as additional product gas, andobtaining permeate of the additional upstream membrane unit as additional offgas. 6. The method according to claim 5, wherein the gas mixture comprises CH4/CO2, wherein CH4 is the product gas, andwherein CO2 is the offgas. 7. The method according to claim 5, wherein the retentate of the second membrane unit and the retentate of the upstream membrane unit are jointly removed as the product gas. 8. The method according to claim 5, wherein the permeate of the first membrane unit and the permeate of the additional upstream membrane unit are jointly removed as the offgas. 9. The method according to claim 5, wherein feed gas of the additional upstream membrane unit is pressurized.
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