Apparatus and process for carbon dioxide absorption
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/22
A61M-016/01
출원번호
UP-0536659
(2003-12-01)
등록번호
US-7625427
(2009-12-16)
우선권정보
GB-0228074.1(2002-12-02)
국제출원번호
PCT/GB03/005226
(2003-12-01)
§371/§102 date
20051123
(20051123)
국제공개번호
WO04/050154
(2004-06-17)
발명자
/ 주소
Clarke, Michael John
Hallas, Ian
출원인 / 주소
Molecular Products Limited
대리인 / 주소
Stout, Uxa, Buyan & Mullins
인용정보
피인용 횟수 :
7인용 특허 :
10
초록
Carbon dioxide is separated from a gas stream using a supported carrier liquid membrane having a selected concentration of carrier species, the method being especially suitable for use in anaesthesia under conditions of periodic flow.
대표청구항▼
The invention claimed is: 1. A method of separating CO2 from a gas stream containing CO2 and an anaesthetic gas, which comprises transporting the gas stream at a periodically varying flow rate through a gas separation device, said device comprising a supported carrier liquid membrane in which the c
The invention claimed is: 1. A method of separating CO2 from a gas stream containing CO2 and an anaesthetic gas, which comprises transporting the gas stream at a periodically varying flow rate through a gas separation device, said device comprising a supported carrier liquid membrane in which the carrier species is an organic base present at a concentration sufficient to provide a separation factor α (CO2, a), wherein R represents permeation rate, p partial pressure of a gas in the feed gas stream and a an anaesthetic gas, greater than unity. 2. A method for separating gases in a gas stream, which comprises contacting the gas stream comprising carbon dioxide and an anaesthetic gas with a supported carrier liquid membrane in which the carrier is an organic base present in a concentration of at least 4.5 mol.dm-3. 3. A method ,as claimed in claim 2, in which the gas stream is transported at a periodically varying flow rate over the supported carrier liquid membrane. 4. A method as claimed in claim 1, wherein the device comprises a supported carrier liquid membrane in which the carrier species is present in a concentration of at least 4.5 mol.dm-3. 5. A method as claimed in claim 1, wherein the membrane is a hollow fibre membrane, and is in the form of a fibre bundle. 6. A method as claimed in claim 1, which further comprises generating a sweep gas stream or providing a vacuum on a face of the membrane remote from the gas stream. 7. A method as claimed in claim 6, which further comprises humidifying the sweep gas stream. 8. A method as claimed in claim 2, wherein the membrane is a hollow fibre membrane, and is in the form of a fibre bundle. 9. A method as claimed in claim 2, which further comprises generating a sweep gas stream or providing a vacuum on a face of the membrane remote from the gas stream. 10. A method as claimed in claim 9, which further comprises humidifying the sweep gas stream. 11. Apparatus for separating CO2 from a gas stream containing CO2 and an anaesthetic gas, the apparatus comprising a gas separation device and means comprising a bellows ventilator for transporting the gas stream at a sinusoidally varying flow rate through the gas separation device, the device comprising a supported carrier liquid membrane in which the carrier species is an organic base present at a concentration sufficient to provide a separation factor α (CO2, a), wherein R represents permeation rate, p partial pressure of a gas in the feed gas stream and a an anaesthetic gas, greater than unity. 12. Apparatus as claimed in claim 11, wherein the device comprises a supported carrier liquid membrane in which the carrier is present in a concentration of at least 4.5 mol.dm-3. 13. Apparatus as claimed in claim 11, wherein the membrane is a hollow fibre membrane, and is in the form of a fibre bundle. 14. Apparatus as claimed in claim 11, which further comprises means for generating a sweep gas stream or means for providing a vacuum on a face of the membrane remote from the gas stream. 15. Apparatus as claimed in claim 14, which further comprises means for humidifying the sweep gas stream. 16. A method as claimed in claim 1, wherein the organic base is selected from the group consisting of diethanolamine, ethanolamine and ethylenediamine. 17. Apparatus as claimed in claim 11, wherein the organic base is selected from the group consisting of diethanolamine, ethanolamine and ethylenediamine. 18. Apparatus for separating CO2 from a gas stream containing CO2 and an anaesthetic gas, the apparatus comprising a gas separation device and a means for transporting the gas stream at a sinusoidally varying flow rate through the gas separation device, the means comprising a bellows ventilator, the device comprising a supported carrier liquid membrane in which the carrier is an organic base present in a concentration of at least 4.5 mol.dm-3. 19. Apparatus as claimed in claim 18, wherein the membrane is a hollow fibre membrane, and is in the form of a fibre bundle. 20. Apparatus as claimed in claim 18, which further comprises means for generating a sweep gas stream or means for providing a vacuum on a face of the membrane remote from the gas stream. 21. Apparatus as claimed in claim 20, which further comprises means for humidifying the sweep gas stream. 22. Apparatus as claimed in claim 18, wherein the organic base is selected from the group consisting of diethanolamine, ethanolamine and ethylenediamine.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (10)
Birbara Philip J. (Windsor Locks CT) Nalette Timothy A. (Tolland CT), Continuous carbon dioxide and water removal system.
Matson Stephen L. (Harvard MA) Lee Eric K. L. (Acton MA) Friesen Dwayne T. (Bend OR) Kelly Donald J. (Bend OR), Gas separation by composite solvent-swollen membranes.
Laurila, Santtu, Arrangement in connection with an anaesthesia/ventilation system for a patient and a gas separation unit for an anaesthesia/ventilation system.
Wijmans, Johannes G.; Merkel, Timothy C; Baker, Richard W., Combustion systems and power plants incorporating parallel carbon dioxide capture and sweep-based membrane separation units to remove carbon dioxide from combustion gases.
Baker, Richard W.; Wijmans, Johannes G; Merkel, Timothy C; Lin, Haiqing; Daniels, Ramin; Thompson, Scott, Combustion systems, power plants, and flue gas treatment systems incorporating sweep-based membrane separation units to remove carbon dioxide from combustion gases.
Baker, Richard W; Merkel, Timothy C; Wijmans, Johannes G, Gas separation process using membranes with permeate sweep to remove CO2 from combustion exhaust.
Wijmans, Johannes G.; Merkel, Timothy C.; Baker, Richard W., Process for separating carbon dioxide from flue gas using parallel carbon dioxide capture and sweep-based membrane separation steps.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.