公开(公告)号：US06174428B1

公开(公告)日：2001-01-16

申请号：US09285777

申请日：1999-04-05

申请人： Jean-Louis Ambrosino ,  Blaise Didillon ,  Pierre Marache ,  Jean-Charles Viltard ,  G{acute over (e)}rald Witte

发明人： Jean-Louis Ambrosino ,  Blaise Didillon ,  Pierre Marache ,  Jean-Charles Viltard ,  G{acute over (e)}rald Witte

IPC分类号： C10G700

CPC分类号： C10G45/44 ,  C10G49/00

摘要： The invention provides a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing a bottom effluent and a vapour distillate, associated with an at least partially external reaction zone comprising at least one catalytic bed, in which at least one reaction for converting at least a portion of at least one hydrocarbon is carried out in the presence of a catalyst and a gas stream comprising hydrogen, the feed for the reaction zone being drawn off at the height of at least one draw-off level and representing at least a portion of the liquid flowing in the distillation zone, at least part of the effluent from the reaction zone being re-introduced into the distillation zone at the height of at least one re-introduction level, so as to ensure continuity of the distillation, and so as to withdraw a distillate from the distillation zone and to recover a bottom effluent from the bottom of the distillation zone, said process being characterized in that the temperature of the portion of effluent re-introduced into the distillation zone is lower than that of the feed to the reaction zone drawn off at the height of a draw-off level located below the re-introduction level. This process can be used to reduce the benzene content in a hydrocarbon cut.

摘要翻译： 本发明提供了一种转化烃进料的方法，其中所述进料在蒸馏区中处理，产生底部流出物和蒸气馏出物，其与包含至少一个催化床的至少部分外部反应区相关联，其中至少一个 用于转化至少一部分至少一种烃的反应在催化剂和包含氢气的气流的存在下进行，反应区的进料在至少一个排出水平的高度被排出，并表示 在蒸馏区中流动的液体的至少一部分，至少部分来自反应区的流出物在至少一个再引入水平的高度被重新引入蒸馏区，以确保连续性 蒸馏并且从蒸馏区抽出馏出物并从蒸馏区的底部回收底部流出物，所述方法的特征在于t 重新引入蒸馏区的流出物部分的温度比在重新引入水平以下的排出水平高度排出的反应区的进料的温度低。 该方法可用于降低烃馏分中的苯含量。