公开(公告)号：US20030078462A1

公开(公告)日：2003-04-24

申请号：US10265436

申请日：2002-10-07

Applicant: SNAMPROGETTI S.p.A.

Inventor： Marco Di Gerolamo ,  Roberto Catani ,  Mario Marchionna

IPC: C07C002/04

CPC classification number: C10G50/00 ,  C07C5/03 ,  C07C9/16 ,  C07C2523/38 ,  C07C2523/75 ,  C07C2523/755 ,  C07C2523/883 ,  C10G65/04 ,  C10G65/16 ,  C10G69/126

Abstract: A process is described for the hydrogenation of olefinic streams containing sulfurated compounds, obtained starting from hydrocarbon cuts containing isobutene (by means of selective dimerization), characterized by fractionating said streams in one or more distillation columns and hydrogenating separately the two fractions obtained. The stream at the head, with a minimum content of sulfurated compounds, is hydrogenated with conventional catalysts based on nickel or noble metals (Platinum and/or Palladium), extremely active but also very sensitive to sulfur, whereas the bottom of the column, rich in sulfurated compounds, is treated with bimetallic catalysts (for example Ni/Co and/or Ni/Mo), less active but not deactivated by sulfur.

Abstract translation: 描述了一种从包含异丁烯（通过选择性二聚）的烃馏分开始获得的含有硫化物的烯烃流的氢化方法，其特征在于将一个或多个蒸馏塔中的所述物流分馏并分别氢化得到的两个馏分。 具有最低含量的硫化物的头部的料流用基于镍或贵金属（铂和/或钯）的常规催化剂进行氢化，其活性极高，但对硫非常敏感，而塔的底部富含 在硫化物中，用双金属催化剂（例如Ni / Co和/或Ni / Mo）处理，活性较低但未被硫失活。