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    Method for processing naphtha
    1.
    发明授权
    Method for processing naphtha 失效
    石脑油加工方法

    公开(公告)号：US07459072B2

    公开(公告)日：2008-12-02

    申请号：US10544427

    申请日：2004-01-24

    申请人： Stefan Bitterlich ,  Hartwig Voss ,  Gunter Schuch ,  Rudolf Sinnen ,  Heinrich Laib ,  Peter Paessler

    发明人： Stefan Bitterlich ,  Hartwig Voss ,  Gunter Schuch ,  Rudolf Sinnen ,  Heinrich Laib ,  Peter Paessler

    IPC分类号： C10G9/00 ,  C10G7/00 ,  C10G7/08 ,  C10G31/11 ,  C07C4/02

    CPC分类号： B01D61/362 ,  C10G7/00 ,  C10G7/08 ,  C10G9/00 ,  C10G31/11

    摘要： Process for the work-up of naphtha, wherein a) naphtha or a stream produced from naphtha in a pretreatment step is separated in a membrane unit into a stream A which is depleted in aromatics and a stream B which is enriched in aromatics, with the aromatics concentration in stream A being from 2 to 12% by weight (step a), b) at least part of the substream A is fed to a steam cracker (step b), c) at least part of the substream B is fed to a unit in which it is separated by means of a thermal process into a stream C which has a lower aromatics content than stream B or a plurality of streams C′, C″, C′″ . . . which each have lower aromatics contents than stream B and a stream D which has a higher aromatics content than stream B or a plurality of streams D′, D″, D′″ . . . which each have higher aromatics contents than stream B (step c), and d) the stream C or at least one of the streams C′, C″, C′″, in each case in part or in its entirety, is added to the feed to the steam cracker or fed into the steam cracker itself (step d).

    摘要翻译： 用于处理石脑油的方法，其中a）在预处理步骤中将石脑油或由石脑油产生的物流在膜单元中分离成贫的芳烃流A和富含芳族化合物的物流B， 流A中的芳族化合物浓度为2至12重量％（步骤a），b）将至少部分分流A送入蒸汽裂解器（步骤b），c）将至少部分子流B送入 其中通过热处理将其分离成具有比流B或多个流C'，C“，C”的较低芳烃含量的流C的单元。 。 。 其具有比流B更低的芳烃含量和具有比流B或多个流D'，D“，D”'更高的芳族化合物含量的流D. 。 。 它们各自具有比物流B更高的芳烃含量（步骤c），以及d）在各种情况下部分或全部，流C或者流C'，C“，C”'中的至少一个是 添加到蒸汽裂化器的进料中或者进入蒸汽裂化器本身（步骤d）。