Natural gas liquefaction method with enhanced propane recovery
作者： Anne Lucquin , Pierre-Yves Martin , Jerome Pigourier , Gilles Ferschneider , Beatrice Fischer
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摘要: The liquefaction method provides fractionation of the natural gas with ethane recycle in order to enhance propane recovery and increase critical pressure be liquefied. is partly liquefied by cooling E 1 , then separated fractionating column 2 into a methane-rich stream rich hydrocarbons heavier than methane. 3 condensates drum 4 are recycled top through line 7 . fraction from exchanger produce gas. methane deethanizer an ethane-enriched hydrocarbons. According invention, at least liquefied, part separating or reflux 7.
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