专利名称：Selective separation of naphthenes from
paraffins by membrane extraction
发明人：Tan-Jen Chen,James R. Sweet申请号：US07/622442申请日：19901205公开号：US05107056A公开日：19920421
摘要：Naphthenic hydrocarbons are separated from aliphatic rich hydrocarbon feedscomprising mixtures of naphthenes with paraffinic hydrocarbons by a membrane
extraction process whereby the hydrocarbon feed is contacted with one face of a porous,non-selective partition barrier membrane while simultaneously contacting the other sideof said membrane with a polar solvent such as ethylenediamine. The naphthenichydrocarbon preferentially migrates through the porous membrane partition barrier inresponse to the polar solvent present on the permeate side of the barrier.
申请人：EXXON RESEARCH AND ENGINEERING COMPANY
代理人：Joseph J. Allocca
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