Selective hydrogenation method using a nickel-based catalyst produced using an additive comprising a carboxylic acid function
申请人:IFP Energies nouvelles
公开号:US10927310B2
公开(公告)日:2021-02-23
A process for the selective hydrogenation of polyunsaturated compounds containing at least 2 carbon atoms per molecule, contained in a hydrocarbon feedstock having a final boiling point below or equal to 300° C. in the presence of a catalyst comprising an alumina support and an active phase comprising nickel, said active phase not comprising a metal from Group VIB, said catalyst being prepared by a process comprising at least:
i) a step of bringing said support into contact with at least one solution containing at least one nickel precursor;
ii) a step of bringing said support into contact with at least one solution containing at least one organic compound comprising at least one carboxylic acid function;
iii) a step of drying said impregnated support at a temperature below 250° C.;
steps i) and ii) being carried out separately, in any order.
一种用于选择性氢化烃类原料中所含的每分子至少含 2 个碳原子的多不饱和化合物的工艺,该烃类原料的最终沸点低于或等于 300 摄氏度,催化剂由氧化铝载体和含镍的活性相组成,所述活性相不含 VIB 族金属,所述催化剂的制备工艺至少包括: 1:
i) 使所述载体与至少一种含有至少一种镍前体的溶液接触的步骤;
ii) 使所述载体与至少一种含有至少一种羧酸功能的有机化合物的溶液接触的步骤;
iii) 在低于 250 摄氏度的温度下干燥所述浸渍支撑物;
步骤 i) 和 ii) 可以任意顺序分别进行。