IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0846015
(2010-07-29)
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등록번호 |
US-8529674
(2013-09-10)
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발명자
/ 주소 |
- Lee, Sang Kook
- Bukowski, Justin David
- Zelson, Carolyn Taylor
- Levine, Mark Ephraim
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출원인 / 주소 |
- Air Products and Chemicals, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
12 |
초록
▼
Pressure swing adsorption process for the separation of a feed gas mixture comprising (a) providing a pressure swing adsorption system comprising one or more composite beds, each composite bed comprising adsorbent material disposed in two or more vessels in parallel flow configuration, each vessel h
Pressure swing adsorption process for the separation of a feed gas mixture comprising (a) providing a pressure swing adsorption system comprising one or more composite beds, each composite bed comprising adsorbent material disposed in two or more vessels in parallel flow configuration, each vessel having a feed end and a product end; (b) performing cyclic sequential steps comprising adsorption/make product, withdrawing gas at decreasing pressure from the composite bed, purging the composite bed, and introducing gas into the composite bed at increasing pressure; and (c) for any of the sequential steps, setting a flow rate or flow rates of one or more gases selected from the group consisting of gas introduced into or withdrawn from the feed end or ends of any of the two or more vessels and gas introduced into or withdrawn from the product end or ends of any of the two or more vessels.
대표청구항
▼
1. A pressure swing adsorption system comprising one or more composite beds, each composite bed comprising adsorbent material and having a composite bed feed end and a composite bed product end, the one or more composite beds having a composite bed feed end manifold, and a composite bed product end
1. A pressure swing adsorption system comprising one or more composite beds, each composite bed comprising adsorbent material and having a composite bed feed end and a composite bed product end, the one or more composite beds having a composite bed feed end manifold, and a composite bed product end manifold, wherein each of the one or more composite beds comprises two or more vessels arranged in parallel flow configuration having a vessel feed end manifold and a vessel product end manifold, each vessel containing a portion of the adsorbent material and having a vessel feed end and a vessel product end, wherein the composite bed feed end manifold of a composite bed is adapted to place the feed end of that composite bed in flow communication with the feed ends of the two or more vessels via the vessel feed end manifold, wherein the composite bed product end manifold is adapted to place the product end of that composite bed in flow communication with the product ends of the two or more vessels via the respective vessel product end manifold, and wherein (a) any vessel feed end manifold comprises one or more flow restriction devices, each device being adapted to set the gas flow rate into the feed end of a respective vessel and/or to set the gas flow rate withdrawn from the feed end of the respective vessel, and/or(b) any vessel product end manifold comprises one or more flow restriction devices, each device being adapted to set the gas flow rate into the product end of a respective vessel and/or to set gas flow rate withdrawn from the product end of the respective vessel. 2. The system of claim 1 wherein any of one the one or more flow restriction devices is selected or are selected from the group consisting of orifices, adjustable valves, reduced-diameter pipe segments, and adjustable-stop check valves. 3. The system of claim 1 consisting of 2 composite beds of adsorbent material, wherein each composite bed consists of 2 to 20 vessels. 4. The system of claim 2 wherein any of the one or more flow restriction devices is an orifice or are orifices. 5. A pressure swing adsorption system comprising two composite beds, each composite bed comprising adsorbent material and having a composite bed feed end and a composite bed product end, each composite bed having a composite bed feed end manifold, and a composite bed product end manifold, wherein each composite bed comprises 2 to 20 vessels arranged in parallel flow configuration having a vessel feed end manifold and a vessel product end manifold, each vessel containing a portion of the adsorbent material and having a vessel feed end and a vessel product end, wherein the composite bed feed end manifold of a composite bed is adapted to place the feed end of that composite bed in flow communication with the feed ends of the two or more vessels via the vessel feed end manifold, wherein the composite bed product end manifold is adapted to place the product end of that composite bed in flow communication with the product ends of the two or more vessels via the respective vessel product end manifold, and wherein (a) each vessel feed end manifold comprises an orifice, and/or(b) each vessel product end manifold comprises an orifice. 6. A pressure swing adsorption system comprising (a) one or more composite beds, each composite bed comprising adsorbent material and having a composite bed feed end and a composite bed product end;(b) a composite bed feed end manifold adapted to introduce gas into the feed end of each composite bed and withdraw gas from the feed end of each composite bed;(c) a composite bed product end manifold adapted to introduce gas into the product end of each composite bed and withdraw gas from the product end of each composite bed; wherein each of the one or more composite beds comprises portions of the adsorbent material disposed respectively in two or more vessels in parallel flow configuration, each vessel having a feed end and a product end, wherein the two or more vessels include (d) a vessel feed end manifold in flow communication with the composite bed feed end manifold and adapted to divide the gas flow into the feed end of each composite bed into individual gas streams and introduce the individual gas streams into the two or more vessels, respectively, and to withdraw and combine individual gas streams from the two or more vessels to provide the gas flow from the feed end of the composite bed; and(e) a vessel product end manifold in flow communication with the composite bed product end manifold and adapted to divide the gas flow into the product end of each composite bed into individual gas streams and introduce the individual gas streams into the two or more vessels, respectively, and to withdraw and combine individual gas streams from the two or more vessels to provide the gas flow from the product end of the composite bed; and wherein (i) the vessel feed end manifold comprises one or more flow restriction devices, each device being adapted to set a gas flow rate into the feed end of a respective vessel and to set a gas flow rate withdrawn from the feed end of the respective vessel, and/or (ii) the vessel product end manifold comprises one or more flow restriction devices, each device being adapted to set a selected gas flow rate into the product end of a respective vessel and to set a gas flow rate withdrawn from the product end of the respective vessel. 7. The system of claim 6 comprising two or more composite beds.
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