发明名称 |
PROCESS FOR UPGRADING NATURAL GAS WITH IMPROVED MANAGMENT OF CO2 |
摘要 |
Disclosed herein are processes for producing a CO2-depleted product gas stream. The processes involve feeding a natural gas feed stream comprising greater than about 10 vol % CO2 to at least one membrane unit comprising a plurality of polymer membranes to provide a CO2-rich permeate comprising at least 95 vol % CO2 and a CO2-depleted product gas stream. The polymer membranes comprise a crosslinked polyimide polymer having covalent ester crosslinks and have a CO2 permeance of at least 20 GPU and a CO2/CH4 selectivity of greater than 20, at 35 degrees C. and a feed pressure of 100 psia. Also disclosed herein is an apparatus incorporating the crosslinked polyimide polymer for producing a CO2-depleted product gas stream from a natural gas feed stream. |
申请公布号 |
EP2411491(A2) |
申请公布日期 |
2012.02.01 |
申请号 |
EP20100736337 |
申请日期 |
2010.01.27 |
申请人 |
CHEVRON U.S.A. INCORPORATED |
发明人 |
CHINN, DANIEL;OKEOWO, SIJI;EUHUS, JEFF D.;HUSAIN, SHABBIR |
分类号 |
C10L3/08;B01D53/22;B01D53/62;B01D61/00;B01D71/64 |
主分类号 |
C10L3/08 |
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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