发明名称 |
TWO STAGE PROCESS FOR PRODUCING PURIFIED GAS |
摘要 |
The present invention provides a process for producing purified gas from a feed gas stream comprising methane and gaseous contaminants, the process comprising the steps of : 1) providing the feed gas stream; 2) cooling the feed gas stream to a temperature at which at least part of the feed gas stream is present in the liquid phase; 3) separating the cooled feed gas stream by means of cryogenic distillation into a bottom stream rich in contaminants and lean in methane, and into a top stream rich in methane and lean in gaseous contaminants, in which the bottom stream contains between 0.5 and 15 % of the methane present in the feed gas stream; 4) cooling the stream rich in methane to a temperature at which solid and/or liquid phase contaminants are formed; 5) introducing the cooled stream of step 4) into a gas/liquid/solids separation vessel, and 6) removing from the gas/liquid/solids separation vessel the purified gas and a stream rich in contaminants. |
申请公布号 |
WO2010006934(A2) |
申请公布日期 |
2010.01.21 |
申请号 |
WO2009EP58400 |
申请日期 |
2009.07.03 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;BEAUMONT, ANDREW MALCOLM;GEERS, HENRICUS ABRAHAM |
发明人 |
BEAUMONT, ANDREW MALCOLM;GEERS, HENRICUS ABRAHAM |
分类号 |
F25J3/02;C10L3/10 |
主分类号 |
F25J3/02 |
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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