公开(公告)号：EP1198540A1

公开(公告)日：2002-04-24

申请号：EP00938720.0

申请日：2000-05-30

申请人： SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.

发明人： GEUS, Eduard, Rudolf ,  HARRIS, John, William ,  PEK, Johan, Jan, Barend

IPC分类号： C10G70/04

CPC分类号： C10G70/045

摘要： Process to separate propene from gaseous fluid catalytic cracking products by performing the following steps: a) separating a feed mixture comprising the gaseous products, propene and other saturated and unsaturated hydrocarbons obtained in a fluid catalytic cracking process into a hydrocarbon-rich liquid fraction and a hydrogen containing gaseous fraction, b) separating the hydrogen containing gaseous fraction into a hydrogen-rich gaseous fraction and a hydrocarbon-rich gaseous fraction by means of a membrane separation, c) supplying the hydrocarbon-rich gaseous fraction obtained in step (b) to an absorber section and obtaining in said absorber section a lower boiling fraction rich in gaseous products having a boiling point of ethane or below and supplying the hydrocarbon-rich liquid fraction obtained in step (a) to a stripper section and obtaining in said stripper section a higher boiling fraction comprising propene and hydrocarbons having a boiling point higher than ethane.