IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0622872
(1990-12-05)
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발명자
/ 주소 |
- Krishnamurthy Ramachandran (Piscataway NJ)
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| 출원인 / 주소 |
- The BOC Group, Inc. (Murray Hill NJ 02)
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| 인용정보 |
피인용 횟수 :
65 인용 특허 :
0 |
초록
▼
The present invention is directed to a method for producing hydrogen and carbon monoxide from a feed mixture comprising hydrogen, carbon monoxide, carbon dioxide, and methane by (a) passing the feed mixture through a first pressure swing adsorption system comprising an adsorbent having a greater aff
The present invention is directed to a method for producing hydrogen and carbon monoxide from a feed mixture comprising hydrogen, carbon monoxide, carbon dioxide, and methane by (a) passing the feed mixture through a first pressure swing adsorption system comprising an adsorbent having a greater affinity for carbon dioxide, methane, and carbon-monoxide than for hydrogen, to separate hydrogen from the carbon dioxide, methane, and carbon monoxide, (b) desorbing carbon monoxide, (c) desorbing carbon dioxide and methane, (d) passing the carbon monoxide to a second pressure swing adsorption system comprising an adsorbent having a greater affinity for carbon monoxide than for hydrogen, carbon dioxide, and methane to separate the carbon monoxide from hydrogen, carbon dioxide, and methane, and (e) desorbing carbon monoxide from the adsorbent. In a second embodiment, the invention is directed to a method which comprises (a) pressure swing adsorption in a first stage comprising an adsorbent having a greater affinity for carbon monoxide than for hydrogen, carbon dioxide, and methane, and pressure swing adsorption in a second stage comprising an adsorbent having a greater affinity for carbon dioxide, methane, and carbon monoxide than for hydrogen.
대표청구항
▼
A method for producing hydrogen and carbon monoxide from a feed mixture comprising hydrogen, carbon monoxide, carbon dioxide, and methane, which comprises the steps of: (a) passing the feed mixture through a first pressure swing adsorption system containing an adsorption bed comprising an adsorbent
A method for producing hydrogen and carbon monoxide from a feed mixture comprising hydrogen, carbon monoxide, carbon dioxide, and methane, which comprises the steps of: (a) passing the feed mixture through a first pressure swing adsorption system containing an adsorption bed comprising an adsorbent having a greater affinity for carbon dioxide, methane, and carbon monoxide than for hydrogen to separate hydrogen as a pure non-adsorbed product and carbon dioxide, methane, and carbon monoxide as an adsorbed fraction; (b) desorbing carbon monoxide from the pressure swing adsorption system in step (a) to form a carbon monoxide-rich fraction; (c) desorbing carbon dioxide and methane from the pressure swing adsorption system in step (a) to form a carbon dioxide-rich fraction; (d) passing the carbon monoxide-rich fraction from step (b) to a second pressure swing adsorption system containing an adsorption bed comprising an adsorbent having a greater affinity for carbon monoxide than for hydrogen, carbon dioxide, and methane to separate carbon monoxide as an adsorbed fraction and hydrogen, carbon dioxide, and methane as a non-adsorbed fraction; and (e) desorbing carbon monoxide from the pressure swing adsorption system in step (d) to form a pure carbon monoxide product.
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