发明名称 |
Recovery of nitrogen and light hydrocarbons from polyalkene purge gas |
摘要 |
<p>A method for the separation of a gas mixture comprises (a) obtaining a feed gas mixture comprising nitrogen and at least one hydrocarbon having two to six carbon atoms; (b) introducing the feed gas mixture at a temperature of about 60 DEG F to about 105 DEG F into an adsorbent bed containing adsorbent material which selectively adsorbs the hydrocarbon, and withdrawing from the adsorbent bed an effluent gas enriched in nitrogen; (c) discontinuing the flow of the feed gas mixture into the adsorbent bed and depressurizing the adsorbent bed by withdrawing depressurization gas therefrom; (d) purging the adsorbent bed by introducing a purge gas into the bed and withdrawing therefrom an effluent gas comprising the hydrocarbon, wherein the purge gas contains nitrogen at a concentration higher than that of the nitrogen in the feed gas mixture; (e) pressurizing the adsorbent bed by introducing pressurization gas into the bed; and (f) repeating (b) through (e) in a cyclic manner. <IMAGE></p> |
申请公布号 |
EP1302233(A3) |
申请公布日期 |
2003.10.01 |
申请号 |
EP20020022575 |
申请日期 |
2002.10.08 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
ZWILLING, DANIEL PATRICK;GOLDEN, TIMOTHY CHRISTOPHER;WEIST, EDWARD LANDIS JR.;LUDWIG, KEITH ALAN |
分类号 |
B01D53/04;B01D53/047;F25J3/06;(IPC1-7):B01D53/047;C07C7/13 |
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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