发明名称 |
PROCESS AND APPARATUS FOR SEPARATION OF HYDROCARBONS AND NITROGEN |
摘要 |
There is provided a process for the separation of a gaseous feed comprising a mixture of nitrogen, hydrocarbons and at least 0.005 mol % carbon dioxide, the process comprising: (i) cooling and at least partially condensing the gaseous feed, and (ii) separating in one or more stages the cooled and at least partially condensed gaseous feed into a hydrocarbon rich product stream low in nitrogen and a nitrogen rich reject stream low in hydrocarbons, and wherein refrigeration is provided to one or more stages of the separation process by a heat pump system in which a heat pump refrigerant fluid is compressed and subsequently expanded at one or more pressure levels below the condensing pressure, and subsequently heated in heat exchange with the gaseous feed and/or one or more streams generated by the separation process to provide refrigeration thereto; and further wherein at least part of the heated refrigerant is recycled through the heat pump system. There is also provided an apparatus for the separation of a gaseous feed comprising a mixture of nitrogen, hydrocarbons and at least 0.005 mol % carbon dioxide. |
申请公布号 |
US2016054054(A1) |
申请公布日期 |
2016.02.25 |
申请号 |
US201414781525 |
申请日期 |
2014.03.24 |
申请人 |
COSTAIN OIL, GAS & PROCESS LIMITED |
发明人 |
Johnson Grant Leigh;Finn Adrian J. |
分类号 |
F25J3/02 |
主分类号 |
F25J3/02 |
代理机构 |
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代理人 |
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主权项 |
1. A process for the separation of a gaseous feed comprising a mixture of nitrogen, hydrocarbons and at least 0.005 mol % carbon dioxide, the process comprising:
(i) cooling and at least partially condensing the gaseous feed, and (ii) separating in one or more stages the cooled and at least partially condensed gaseous feed into a hydrocarbon rich product stream low in nitrogen and a nitrogen rich reject stream low in hydrocarbons,and wherein refrigeration is provided to one or more stages of the separation process by a heat pump system in which a heat pump refrigerant fluid is compressed and subsequently expanded at one or more pressure levels below the condensing pressure, and subsequently heated in heat exchange with the gaseous feed and/or one or more streams generated by the separation process to provide refrigeration thereto;and further wherein at least part of the heated refrigerant is recycled through the heat pump system. |
地址 |
Manchester GB |