发明名称 |
Oxygen production by adsorption |
摘要 |
A process for producing an oxygen enriched product includes: (a) providing a gas separation apparatus having at least one bed containing a mixture of at least two different nitrogen selective adsorbents, wherein the at least one bed is free of lithium cations; (b) feeding a feed gas containing oxygen and nitrogen into the gas separation apparatus to contact the at least one bed; and (c) recovering from the gas separation apparatus the oxygen enriched product. The process is preferably performed above ambient temperature and/or in a simplified four-step cycle. The cycle includes: (a) feeding a feed gas containing oxygen into a gas separation apparatus to contact at least one bed of the apparatus with the feed gas, wherein the feed gas is at a temperature above ambient; (b) countercurrently evacuating the at least one bed following the feeding; (c) countercurrently purging the at least one bed with the oxygen enriched product under vacuum; and (d) simultaneously pressurizing the at least one bed with a countercurrent stream of the oxygen enriched product and a cocurrent stream of the feed gas.
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申请公布号 |
US6468328(B2) |
申请公布日期 |
2002.10.22 |
申请号 |
US20000739150 |
申请日期 |
2000.12.18 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
SIRCAR SHIVAJI;WALDRON WILLIAM EMIL |
分类号 |
B01D53/04;B01J20/18;C01B13/02;(IPC1-7):B01D53/047 |
主分类号 |
B01D53/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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