Gasoline sulfur reduction in fluid catalytic cracking
    1.
    发明授权
    Gasoline sulfur reduction in fluid catalytic cracking 有权
    汽油硫化液流化催化裂化

    公开(公告)号:US07153413B2

    公开(公告)日:2006-12-26

    申请号:US09901939

    申请日:2001-07-10

    IPC分类号: C10G11/18

    CPC分类号: C10G11/05 C10G11/02

    摘要: The sulfur content of liquid cracking products, especially the cracked gasoline, is reduced in a catalytic cracking process employing a cracking catalyst containing a high content of vanadium. The cracking process involves introducing at least one vanadium compound into a hydrocarbon-sulfur containing feedstock to be charged to a fluid catalytic cracking reactor operating under steady state conditions and containing an equilibrium fluid cracking catalyst inventory within the reactor. The amount of sulfur in the liquid products, in particular gasoline and LCO fractions, is reduced as a result of the increased vanadium content on the equilibrium catalyst. Advantageously, sulfur reduction is achieved even in the presence of other metal contaminants, such as nickel and iron, on the equilibrium catalyst.

    摘要翻译: 在使用含钒量高的裂化催化剂的催化裂化过程中,液体裂解产物,特别是裂化汽油的硫含量降低。 裂解过程包括将至少一种钒化合物引入含烃 - 硫的原料中,以将其装入在稳态条件下运行并在反应器内含有平衡流体裂解催化剂存量的流化催化裂化反应器。 由于在平衡催化剂上的钒含量增加,液体产物中的硫的量,特别是汽油和LCO馏分的量减少。 有利的是,即使在平衡催化剂上存在其它金属污染物如镍和铁的情况下也能实现硫还原。