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    • 61. 发明公开
    • PRODUCTION OF OLEFINS
    • 生产烯烃
    • EP1506271A1
    • 2005-02-16
    • EP03755125.6
    • 2003-05-22
    • ATOFINA Research
    • GROOTJANS, JacquesVANRYSSELBERGHE, ValérieVERMEIREN, Walter
    • C10G51/04C10G11/05
    • C10G11/05C10G51/04C10G2300/1044C10G2300/1088C10G2300/4018C10G2300/807C10G2400/20
    • 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.
    • 63. 发明公开
    • Production of olefins
    • Verfahren zur Herstellung von Olefinen
    • EP1365004A1
    • 2003-11-26
    • EP02076994.9
    • 2002-05-23
    • ATOFINA Research
    • Grootjans, JacquesVanrysselberghe, ValérieVermeiren, Walter
    • C10G51/04C10G11/05
    • C10G11/05C10G51/04C10G2300/1044C10G2300/1088C10G2300/4018C10G2300/807C10G2400/20
    • 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 steam 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 C 4 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 C 4 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.
    • 一种用于蒸汽裂解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的方法,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,以产生具有烯烃含量的中间体流出物 的分子量低于原料,分馏中间体流出物以提供低碳馏分和较高的碳馏分,并将作为第二烃原料的较高碳馏分通过蒸汽裂化器通过,以产生蒸汽裂解的流出物。 还提供了一种用于蒸汽裂解包含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的方法,该方法包括使含有一种或多种烯烃的第一烃原料通过,该烃原料包含加氢处理的原料C4原料中的至少一种 ,LCCS,萃余液2原料,萃余液1原料,来自甲基叔丁基醚(MTBE)或乙基叔丁基醚(ETBE)单元的萃余液2原料,来自烯烃复分解单元的萃余液,特别是 通过含有结晶硅酸盐的反应器,通过含有结晶硅酸盐的反应器,从乙烯和丁烯生产丙烯,或从FCC装置加氢处理的含烯烃流,减粘裂化器或延迟焦化器,以产生具有低于分子量的烯烃含量的中间体流出物。 的原料,并且作为第二烃原料通过中间流出物通过蒸汽裂化器以产生蒸汽裂解的流出物。 进一步提供了一种用于蒸汽裂解含有烯烃的烃原料以在蒸汽裂解流出物中提供增加的轻质烯烃的方法,该方法包括蒸汽裂化包含含链烷烃的烃原料的第一烃​​原料和蒸汽裂化第二烃原料,其含有 C4和高级烃,第二烃原料含有一种或多种烯烃,并且包含通过在含有结晶硅酸盐的反应器中催化裂化第三烃原料而产生的中间流出物的底部馏分,以产生具有较低烯烃含量的中间体流出物 分子量高于第三种原料,并将两种蒸汽裂解废水混合以提供一种常见的流出物。