Hybrid multichannel porous structure for hydrogen separation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-003/28
B01D-053/22
출원번호
US-0538301
(2009-08-10)
등록번호
US-8479487
(2013-07-09)
발명자
/ 주소
Ku, Anthony Yu-Chung
McEvoy, Kevin Paul
Willson, Patrick Daniel
Kulkarni, Parag Parkash
Shisler, Roger Allen
Kurup, Anoop Muralidhara
출원인 / 주소
General Electric Company
대리인 / 주소
Coppa, Francis T.
인용정보
피인용 횟수 :
1인용 특허 :
11
초록▼
A hybrid multichannel porous structure for processing between two fluid streams of different compositions includes a housing and one or more structures disposed within the cavity of the housing in a shell and tube configuration. Each structure includes a body made of a porous, inorganic material and
A hybrid multichannel porous structure for processing between two fluid streams of different compositions includes a housing and one or more structures disposed within the cavity of the housing in a shell and tube configuration. Each structure includes a body made of a porous, inorganic material and a plurality of channels for processing an optional sweep stream. Each channel is coated with a membrane layer. A feed stream introduced into the housing is in direct contact with the structures such that a gas selectively permeates through the body and into the channels. The gas combines with the sweep stream to form a permeate that exits from each channel. The remaining feed stream forms a retentate that exits from the housing. The feed stream may consist of syngas containing hydrogen gas and the sweep stream may contain nitrogen gas. A power plant that incorporates the hybrid structure is disclosed.
대표청구항▼
1. A hybrid multichannel porous structure for processing between two gas streams of different compositions, the structure comprising: a housing having a cavity, an inlet for introducing a feed stream containing a first composition into the cavity, and an outlet for discharging a retentate from the c
1. A hybrid multichannel porous structure for processing between two gas streams of different compositions, the structure comprising: a housing having a cavity, an inlet for introducing a feed stream containing a first composition into the cavity, and an outlet for discharging a retentate from the cavity; andone or more structures disposed within the cavity of the housing, each structure including a body made of a porous, inorganic material and a plurality of channels disposed in the body for processing a sweep stream containing a second composition that is introduced into each channel at one end of the body into a composition comprising the remaining sweep stream and a permeate that exits from each channel at an opposite end of the body,wherein the feed stream is in direct contact with an outer surface of each structure as the feed stream travels from the inlet to the outlet of the housing such that one or more gases in the first composition of the feed stream selectively permeate through the body and into each channel to combine with the second composition of the sweep stream to form a permeate that exits from each channel of the body,wherein the feed stream that does not permeate through the body forms a retentate that exits from the outlet of the housing, andwherein each channel is coated with a membrane layer comprising a first, macro-porous layer disposed on a surface of each channel, a second, meso-porous intermediate layer disposed on the first, macro-porous layer, and a third, micro-porous layer disposed on the second, meso-porous intermediate layer, and wherein the membrane layer selectively separates a gas contained in the first composition of the feed stream, and wherein the separated gas permeates through the body of each structure and combines with the second composition of the sweep stream traveling through each channel of the body. 2. The hybrid structure of claim 1, wherein the first composition of the feed stream comprises syngas containing hydrogen gas, and wherein the second composition of the sweep stream comprises nitrogen gas, and wherein the hydrogen gas contained in the feed stream permeates through the body of each structure and combines with the nitrogen gas of the sweep stream traveling through each channel of the body. 3. The hybrid structure of claim 1, wherein the feed stream is introduced at one end of the housing, and wherein the sweep stream is introduced at the same end of the housing in a co-current flow configuration. 4. The hybrid structure of claim 1, wherein the feed stream is introduced at one end of the housing, and wherein the sweep stream is introduced at an opposite end of the housing in a counter-current flow configuration. 5. A hybrid multichannel porous structure for processing between two gas streams of different compositions, the structure comprising: a housing having a cavity, an inlet for introducing a feed stream containing a first composition into the cavity, and an outlet for discharging a retentate from the cavity; andone or more structures disposed within the cavity of the housing, each structure including a body made of a porous, inorganic material and a plurality of channels disposed in the body for processing a sweep stream containing a second composition that is introduced into each channel at one end of the body into a composition comprising the remaining sweep stream and a permeate that exits from each channel at an opposite end of the body,wherein the feed stream is in direct contact with an outer surface of each structure as the feed stream travels from the inlet to the outlet of the housing such that one or more gases in the first composition of the feed stream selectively permeate through the body and into each channel to combine with the second composition of the sweep stream to form a permeate that exits from each channel of the body,wherein the feed stream that does not permeate through the body forms a retentate that exits from the outlet of the housing, andwherein each channel is coated with a membrane layer comprising a meso-porous layer disposed on a surface of each channel, and a micro-porous layer disposed on the meso-porous layer, and wherein the membrane layer selectively separates a gas contained in the first composition of the feed stream, and wherein the separated gas permeates through the body of each structure and combines with the second composition of the sweep stream traveling through each channel of the body. 6. The hybrid structure of claim 5, wherein the feed stream is introduced at one end of the housing, and wherein the sweep stream is introduced at the same end of the housing in a co-current flow configuration. 7. The hybrid structure of claim 5, wherein the feed stream is introduced at one end of the housing, and wherein the sweep stream is introduced at an opposite end of the housing in a counter-current flow configuration. 8. A power plant, comprising: a gasification unit for producing a syngas;a syngas cleanup section, comprising: a water-gas shift reactor configured to receive the syngas from the gasification unit and to produce a shifted syngas stream enriched in hydrogen; anda hybrid multichannel porous structure for separating hydrogen from the shifted syngas stream produced by the water-gas shift reactor, the structure comprising a housing having a cavity, an inlet for introducing a feed stream containing a first composition into the cavity, and an outlet for discharging a retentate from the cavity; and one or more structures disposed within the cavity of the housing, each structure including a body made of a porous, inorganic material and a plurality of channels disposed in the body for processing a sweep stream containing a second composition that is introduced into each channel at one end of the body into a composition comprising the remaining sweep stream and a permeate that exits from each channel at an opposite end of the body, wherein the feed stream is in direct contact with an outer surface of each structure as the feed stream travels from the inlet to the outlet of the housing such that one or more gases in the first composition of the feed stream selectively permeate through the body and into each channel to combine with the second composition of the sweep stream to form the permeate that exits from each channel of the body, wherein the feed stream that does not permeate through the body forms the retentate that exits from the outlet of the housing, and wherein each channel is coated with a membrane layer comprising a first, macro-porous layer disposed on a surface of each channel, a second, meso-porous intermediate layer disposed on the first, macro-porous layer, and a third, micro-porous layer disposed on the second, meso-porous intermediate layer, and wherein the membrane layer selectively separates a gas contained in the first composition of the feed stream, and wherein the separated gas permeates through the body of each structure and combines with the second composition of the sweep stream traveling through each channel of the body; anda combined cycle power generation unit in flow communication with the syngas cleanup section for receiving a fuel-rich stream from the syngas cleanup section to produce electricity. 9. The power plant of claim 8, wherein the feed stream is introduced at one end of the housing, and wherein the sweep stream is introduced at the same end of the housing in a co-current flow configuration. 10. The power plant of claim 8, wherein the feed stream is introduced at one end of the housing, and wherein the sweep stream is introduced at an opposite end of the housing in a counter-current flow configuration.
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