发明名称 |
Method to produce natural gas liquids NGLs at gas Pressure Reduction Stations |
摘要 |
A method to recover NGL's at gas Pressure Reducing Stations. A first step involve providing at least one heat exchanger having a flow path for passage of high pressure natural gas with a counter current depressurized lean cold gas. A second step involves passing the high pressure natural gas stream in a counter current flow with the lean cold gas and cooling it before de-pressurization. A third step involves the expansion of the high pressure cooled gas in a gas expander. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure and cold gas enters a separator where NGL's are recovered. This process results in the recovery NGL's, electricity and the displacement of a slipstream of natural that is presently used to pre-heat gas at Pressure Reduction Stations. |
申请公布号 |
US8640494(B2) |
申请公布日期 |
2014.02.04 |
申请号 |
US20080121486 |
申请日期 |
2008.05.15 |
申请人 |
LOURENCO JOSE;MILLAR MACKENZIE |
发明人 |
LOURENCO JOSE;MILLAR MACKENZIE |
分类号 |
F25J3/00;F25J1/00 |
主分类号 |
F25J3/00 |
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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