发明名称 |
METHOD AND SYSTEM FOR REMOVING HYDROGEN SULPHIDE (H2S) FROM A NATURAL GAS STREAM |
摘要 |
A method for removing hydrogen sulphide (H2S) from a natural gas stream comprising methane (CH4) and H2S comprises: - cooling the natural gas stream in a heat exchanger assembly (13,16,18); - feeding at least part of the cooled natural gas stream through a feed conduit (19,21) into a cyclonic expansion and separation device (1) in which the cooled natural gas stream is expanded in a nozzle (4) and thereby further cooled to a temperature and pressure below the dew point of H2S and is separated by inducing the cooled natural gas stream to swirl in a tubular separation chamber (9) thereby inducing centrifugal forces to separate the cooled natural gas stream into a cooled low density fluid fraction, which is H2S depleted and methane enriched, and a cooled high density fluid fraction, which is H2S enriched and methane depleted; - feeding the cooled low density fluid fraction to a product gas conduit (33) which is connected to the heat exchanger assembly (14) for cooling the natural gas stream fed to the cyclonic expansion and separation device (1); and - feeding the cooled high density fluid fraction to a fractionating column (8) for further separation. |
申请公布号 |
WO2009002174(A3) |
申请公布日期 |
2009.02.19 |
申请号 |
WO2008NL50424 |
申请日期 |
2008.06.27 |
申请人 |
TWISTER B.V.;BETTING, MARCO;TJEENK WILLINK, CORNELIS ANTONIE;VAN BAKEL, ROBERT PETRUS |
发明人 |
BETTING, MARCO;TJEENK WILLINK, CORNELIS ANTONIE;VAN BAKEL, ROBERT PETRUS |
分类号 |
C10L3/10;B01D53/24 |
主分类号 |
C10L3/10 |
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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