Process for desulfurizing a catalytic cracking or steam cracking effluent
    1.
    发明授权
    Process for desulfurizing a catalytic cracking or steam cracking effluent 失效
    催化裂化或蒸汽裂解流出物脱硫的方法

    公开(公告)号:US4397739A

    公开(公告)日:1983-08-09

    申请号:US235799

    申请日:1981-02-19

    CPC分类号: C10G69/02 C10G2400/02

    摘要: Catalytic cracking or steam cracking effluents are desulfurized without substantial decrease of their octane number by subdividing said effluent into two fractions of different boiling ranges, the heavier of which is admixed with hydrogen, the resulting mixture being completely vaporized and fed to a hydrodesulfurization zone containing a first bed of selective catalyst formed of cobalt and molybdenum, or cobalt and tungsten, or nickel and molybdenum or nickel and tungsten deposited on a non-acid carrier, and a second bed of conventional hydrodesulfurization catalyst, the effluent from the hydrodesulfurization zone being cooled down and fractionated to separate a hydrocarbon fraction of the gasoline range which is recombined with the lighter fraction of said effluent.

    摘要翻译: 催化裂化或蒸汽裂解废水通过将所述流出物细分为两个不同沸点范围的两个馏分进行脱硫而基本上不降低其辛烷值,其中较重的馏分与氢气混合,所得混合物完全蒸发,并进料至加氢脱硫区, 由钴和钼或钴和钨或沉积在非酸性载体上的镍和钼或镍和钨形成的选择性催化剂的第一床和常规加氢脱硫催化剂的第二床,来自加氢脱硫区的流出物被冷却 并分馏以分离汽油范围的烃馏分,其与所述流出物的较轻馏分重组。