Title: Method of separation C3 -hydrocarbon from gas stream
Application Number: 85109210 Application Date: 1985.12.16
Publication Number: 1002309 Publication Date: 1986.08.13
Approval Pub. Date: 1989.11.29 Granted Pub. Date: 1989.11.29
International Classifi-cation: C10G5/06
Applicant(s) Name: Linde AG Address:
Inventor(s) Name: Sapper Rainer
Attorney & Agent: LIU YUANJIN LUO HONG
Abstract:
    The separation of C3 hydrocarbons from natural gas and the like comprises subjecting the gas under pressure to partial condensation under cooling, separating the uncondensed gaseous phase and engine expanding same while the condensed liquid fraction is subjected to rectification. Additional C3 hydrocarbons are separated from the engine expanded gaseous fraction by scrubbing and then fed to the rectification column. The resultant scrubbed gaseous fraction, whose pressure preferably is above the rectification pressure, can be delivered as C2- product stream.
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