发明名称 |
Nitrogen removal from natural gas using two types of membranes |
摘要 |
A process for treating natural gas or other methane-rich gas to remove excess nitrogen. The invention relies on two-stage membrane separation, using methane-selective membranes for the first stage and nitrogen-selective membranes for the second stage. The process enables the nitrogen content of the gas to be substantially reduced, without requiring the membranes to be operated at very low temperatures.
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申请公布号 |
US6630011(B1) |
申请公布日期 |
2003.10.07 |
申请号 |
US20020245904 |
申请日期 |
2002.09.17 |
申请人 |
MEMBRANE TECHNOLOGY AND RESEARCH, INC. |
发明人 |
BAKER RICHARD W.;LOKHANDWALA KAAEID A.;WIJMANS JOHANNES G.;DA COSTA ANDRE R. |
分类号 |
B01D53/22;(IPC1-7):B01D53/22 |
主分类号 |
B01D53/22 |
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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