PROPENE RECOVERY
    1.
    发明授权
    PROPENE RECOVERY 有权
    提取丙烷

    公开(公告)号:EP1198540B1

    公开(公告)日:2004-04-07

    申请号:EP00938720.0

    申请日:2000-05-30

    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.

    VERFAHREN UND ANLAGE ZUM THERMISCHEN SPALTEN VON KOHLENWASSERSTOFFEN, INSBESONDERE ZUR HERSTELLUNG VON OLEFINEN
    4.
    发明授权
    VERFAHREN UND ANLAGE ZUM THERMISCHEN SPALTEN VON KOHLENWASSERSTOFFEN, INSBESONDERE ZUR HERSTELLUNG VON OLEFINEN 有权
    方法和系统烃的热柱,特别是对烯烃的生产

    公开(公告)号:EP1208183B1

    公开(公告)日:2005-10-26

    申请号:EP00956115.0

    申请日:2000-08-01

    IPC分类号: C10G70/04

    摘要: The invention relates to a method for cracking hydrocarbons, especially for producing olefins, whereby a mixture consisting of hydrocarbons and water vapor is heated in a cracking furnace up to a temperature ranging from 750 °C to 900 °C, and the resulting cracking gas which contains hydrogen is immediately cooled after the heating process in a cracking gas cooler to a temperature lower than approximately 650 °C. If heavy products are present, the cracking gas is subsequently subjected to an additional cooling by quenching and is then liberated by separating out heavy oil and gasoline. Afterwards, water vapor is removed by quenching from the cracking gas containing light products. This cracking gas is compressed to at least 20 bar by a compressor, is liberated from residual water by drying, is cooled in a deep cooling installation, and is fed into a plurality of rectifying columns in order to separate out the light products. Selective membrane diffusion is used to extract a portion of the hydrogen from the cracking gas in the direction of flow of the process medium upstream from the deep cooling installation. The invention also relates to an installation for thermally cracking hydrocarbons, especially for producing olefins.

    PROPENE RECOVERY
    6.
    发明公开
    PROPENE RECOVERY 有权
    提取丙烷

    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

    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.