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.
申请公布号
WO0075263(A1)
申请公布日期
2000.12.14
申请号
WO2000EP04997
申请日期
2000.05.30
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;GEUS, EDUARD, RUDOLF;HARRIS, JOHN, WILLIAM;PEK, JOHAN, JAN, BAREND