Cryogenic extraction process for natural gas liquids
阅读：266发布：2023-05-10
专利汇可以提供Cryogenic extraction process for natural gas liquids专利检索，专利查询，专利分析的服务。并且A process for the cryogenic extraction of natural gas liquids through the vaporization and direct heat exchange of liquefied natural gas with a wet natural gas.，下面是Cryogenic extraction process for natural gas liquids专利的具体信息内容。
1. A PROCESS FOR THE EXTRACTION OF ETHANE AND HEAVIER HYDROCARBONS FROM A WET NATURAL GAS CONTAINING METHANEM ETHANE AND PROPANE AND THE VAPORIZATION OF A PORTION OF A LIQUEFIED NATURAL GAS CONTAINING METHANE, ETHANE AND PROPANE, COMPRISING: PASSING A FIRST STREAM OF THE LIQUEFIED NATURAL GAS AND A SECOND STREAM OF THE WET NATURAL GSS INTO A MIXING ZONE SO AS TO VAPORIZE A PORTION OF THE LIQUEFIED NATURAL GAS AND CONDENSE A PORTION OF THE WET NATURAL GAS; REMOVING FROM THE MIXING ZONE A THIRD STREAM COMPRISING THE VAPORIZED LIQUEFIED NATURAL GAS AND THE WET NATURAL GAS WHICH IS NOT CONDENSED; REMOVING FROM THE MIXING ZONE A FOURTH STREAM COMPRISING THE CONDENSED WET NATURAL GAS AND THE LIQUEFIED NATURAL GAS WHICH IS NOT VAPORIZED; PASSING THE FOURTH STREAM TO A DEMETHANIZER; REMOVING A FIFTH STREAM COMPRISING METHANE FROM THE DEMETHANIZER; AND REMOVING A SIXTH STREAM FROM THE DEMETHANIZER COMPRISING HYDROCARBONS IN THE FOURTH STREAM HEAVIER THAN METHANE.
2. The process of claim 1 wherein the third stream is passed in indirect heat exchange relationship with the second stream.
3. The process of claim 2 wherein the second stream is removed from a pipeline, and at least a portion of the third stream and at least a portion of the fifth stream are returned to the pipeline.
4. The process of claim 3 wherein said wet natural gas comprises about 95 percent methane.
5. The process of claim 1 wherein the ratio of liquefied natural gas to the wet natural gas is in the range of about 10 to about 20 percent by volume.
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