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    Production of olefins
    1.
    发明授权
    Production of olefins 失效
    生产烯烃

    公开(公告)号：US08071833B2

    公开(公告)日：2011-12-06

    申请号：US10515559

    申请日：2003-05-22

    申请人： Jacques Grootjans ,  Valérie Vanrysselberghe ,  Walter Vermeiren

    发明人： Jacques Grootjans ,  Valérie Vanrysselberghe ,  Walter Vermeiren

    IPC分类号： C07C4/02

    CPC分类号： C10G11/05 ,  C10G51/04 ,  C10G2300/1044 ,  C10G2300/1088 ,  C10G2300/4018 ,  C10G2300/807 ,  C10G2400/20

    摘要： A process (or steam cracking a hydrocarbon feedstock containing olefins to provide increased light olefins in the steam cracked effluent, the process comprising passing a first hydrocarbon feedstock containing one or more olefins through a reactor containing a crystalline silicate to produce an intermediate effluent with an olefin content of lower molecular weight than that of the feedstock, fractionating the intermediate effluent to provide a lower carbon fraction and a higher carbon fraction, and passing the higher carbon fraction, as a second hydrocarbon feedstock, through a stream cracker to produce a steam cracked effluent.

    摘要翻译： （或蒸汽裂化含有烯烃的烃原料以在蒸汽裂解的流出物中提供增加的轻质烯烃，该方法包括使含有一种或多种烯烃的第一烃原料通过含有结晶硅酸盐的反应器以产生具有烯烃的中间流出物 含量低于原料的分子量，分馏中间体流出物以提供较低碳分数和较高的碳分数，并将作为第二烃原料的较高碳分数通过料流裂化器通过，以产生蒸汽裂解流出物 。

    Production of olefins
    2.
    发明申请
    Production of olefins 失效

    公开(公告)号：US20060100473A1

    公开(公告)日：2006-05-11

    申请号：US10515559

    申请日：2003-05-22

    申请人： Jacques Grootjans ,  Valerie Vanrysselberghe ,  Walter Vermeiren

    发明人： Jacques Grootjans ,  Valerie Vanrysselberghe ,  Walter Vermeiren

    IPC分类号： C07C4/02

    CPC分类号： C10G11/05 ,  C10G51/04 ,  C10G2300/1044 ,  C10G2300/1088 ,  C10G2300/4018 ,  C10G2300/807 ,  C10G2400/20

    摘要： A process for steam cracking a hydrocarbon feedstock containing olefins to provide increased light olefins in the steam cracked effluent, the process comprising passing a first hydrocarbon feedstock containing one or more olefins through a reactor containing a crystalline silicate to produce an intermediate effluent with an olefin content of lower molecular weight than that of the feedstock, fractionating the intermediate effluent to provide a lower carbon fraction and a higher carbon fraction, and passing the higher carbon fraction, as a second hydrocarbon feedstock, through a stream cracker to produce a steam cracked effluent. There is also provided a process for steam cracking a hydrocarbon feedstock containing olefins to provide increased light olefins in the steam cracked effluent, the process comprising passing a first hydrocarbon feedstock containing one or more olefins, which comprises at least one of a hydrotreated raw C4 feedstock, LCCS, a raffinate 2 feedstock, a raffinate 1 feedstock, a raffinate 2 feedstock from a methyl tert-butyl ether (MTBE) or an ethyl tert-butyl ether (ETBE) unit, a raffinate from an olefins metathesis unit, in particular for the production of propylene from ethylene and butene, or a hydrotreated olefin-containing stream from an FCC unit, a visbreaker or a delayed coker, through a reactor containing a crystalline silicate to produce an intermediate effluent with an olefin content of lower molecular weight than that of the feedstock, and passing the intermediate effluent as a second hydrocarbon feedstock through a steam cracker to produce a steam cracked effluent. There is further provided a process for steam cracking a hydrocarbon feedstock containing olefins to provide increased light olefins in the steam cracked effluent, the process comprising steam cracking a first hydrocarbon feedstock comprising a paraffin-containing hydrocarbon feedstock and steam cracking a second hydrocarbon feedstock which contains C4 and higher hydrocarbons, the second hydrocarbon feedstock containing one or more olefins and comprising a bottom fraction of an intermediate effluent produced by catalytic cracking of a third hydrocarbon feedstock in a reactor containing a crystalline silicate to produce the intermediate effluent having an olefin content of lower molecular weight than that of the third feedstock, and combining the two steam-cracked effluents to provide a common effluent.