Process for the joint production of highly pure 1-butene and premium
gasoline from a C.sub.4 olefinic cut
    8.
    发明授权
    Process for the joint production of highly pure 1-butene and premium gasoline from a C.sub.4 olefinic cut 失效
    从C4烯烃切割联合生产高纯度1-丁烯和优质汽油的方法

    公开(公告)号:US4423264A

    公开(公告)日:1983-12-27

    申请号:US392056

    申请日:1982-06-25

    CPC分类号: C07C11/08 C10L1/04 C10L1/06

    摘要: Highly pure 1-butene and premium gasoline are obtained by(a) subjecting a C.sub.4 olefinic cut to a polymerization-disproportionation to partly convert the isobutene thereof to a gasoline which, in turn, by partial disproportionation, yields a jet fuel base and butenes,(b) fractionating the effluent from step (a) to a mixture (.alpha.) of gasoline and jet fuel base and to a fraction (.beta.) containing isobutane, n-butane, butenes, a small amount of isobutene and a minor amount of butadiene,(c) selectively polymerizing fraction (.beta.) to convert more than 90% of the isobutene thereof to gasoline,(d) fractionating the polymerized fraction (.beta.) to a gasoline cut (.gamma.) containing isobutene dimers and trimers and to a fraction (.delta.) containing isobutane, n-butane and butenes,(e) selectively hydrogenating the fraction (.delta.),(f) removing isobutane from the hydrogenated fraction (.delta.) and(g) fractionating the deisobutanized hydrogenated fraction (.delta.) to obtain a fraction containing at least 99% of 1-butene, the mixture (.alpha.) being admixed with the cut (.gamma.).

    摘要翻译: 通过以下方法获得高纯度的1-丁烯和优质汽油:(a)使C4烯烃切割物进行聚合歧化,将其异丁烯部分转化成汽油,然后汽油通过部分歧化产生喷气燃料基体和丁烯, (b)将来自步骤(a)的流出物分馏成汽油和喷气燃料基料的混合物(α)和含有异丁烷,正丁烷,丁烯,少量异丁烯和少量丁二烯的馏分(β) ,(c)选择性地聚合馏分(β)以将其超过90%的异丁烯转化成汽油,(d)将聚合馏分(β)分馏成含有异丁烯二聚体和三聚体的汽油馏分(γ) (e)选择性氢化馏分(δ),(f)从氢化馏分(delta)中除去异丁烷,和(g)分离除异丁氢化氢化馏分(delta)以获得af 反应物含有至少99%的1-丁烯,混合物(α)与切割(γ)混合。