VERFAHREN ZUR AUFARBEITUNG VON NAPHTHA
    4.
    发明公开
    VERFAHREN ZUR AUFARBEITUNG VON NAPHTHA 有权
    一种用于处理石脑油

    公开(公告)号:EP1601746A1

    公开(公告)日:2005-12-07

    申请号:EP04705010.9

    申请日:2004-01-24

    摘要: Disclosed is a method for processing naphtha, according to which a) naphtha or a stream generated from naphtha in a preprocessing step is divided into a stream A that is stripped of aromatics and a stream B which is enriched with aromatics in a membrane unit, the aromatics concentration in stream A ranging from 2 to 12 percent by weight (step a); b) partial stream A is directed at least in part into a steam cracker (step b); c) partial stream B is directed at least in part into a unit in which said stream B is divided into a stream C or several streams C' C'', C''',..., which has/have a lower aromatics content than stream B, and a stream D or several streams D', D'', D''',..., which has/have a higher aromatics content than stream B, by means of a thermal process (step c); d) stream C or at least one of the streams C', C'', C''' is delivered as a whole or in part to the feed for the steam cracker or directly to the steam cracker (step d).

    VERFAHREN ZUR AUFARBEITUNG VON NAPHTHA
    5.
    发明授权
    VERFAHREN ZUR AUFARBEITUNG VON NAPHTHA 有权
    一种用于处理石脑油

    公开(公告)号:EP1601746B1

    公开(公告)日:2007-04-11

    申请号:EP04705010.9

    申请日:2004-01-24

    摘要: Disclosed is a method for processing naphtha, according to which a) naphtha or a stream generated from naphtha in a preprocessing step is divided into a stream A that is stripped of aromatics and a stream B which is enriched with aromatics in a membrane unit, the aromatics concentration in stream A ranging from 2 to 12 percent by weight (step a); b) partial stream A is directed at least in part into a steam cracker (step b); c) partial stream B is directed at least in part into a unit in which said stream B is divided into a stream C or several streams C' C'', C''',..., which has/have a lower aromatics content than stream B, and a stream D or several streams D', D'', D''',..., which has/have a higher aromatics content than stream B, by means of a thermal process (step c); d) stream C or at least one of the streams C', C'', C''' is delivered as a whole or in part to the feed for the steam cracker or directly to the steam cracker (step d).