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    • 57. 发明申请
    • CATALYTIC SYSTEM AND PROCESS FOR THE TOTAL HYDROCONVERSION OF HEAVY OILS
    • 催化体系及重油总氢过程
    • WO2013034642A1
    • 2013-03-14
    • PCT/EP2012/067412
    • 2012-09-06
    • ENI S.P.A.MOLINARI, DanieleBELLUSSI, GiuseppeLANDONI, AlbertoPOLLESEL, Paolo
    • MOLINARI, DanieleBELLUSSI, GiuseppeLANDONI, AlbertoPOLLESEL, Paolo
    • B01J27/051B01J29/78C10G45/12
    • B01J29/89B01J27/051B01J29/7876C10G45/12C10G47/16C10G65/12
    • A catalytic system characterized in that it comprises: a first catalyst, having a hydrogenating function, consisting of solid particles of which at least 95% by volume having an equivalent diameter smaller than 20 μm, containing one or more sulfides of metals of group VI and/or VIII B, possibly prepared starting from an oil- soluble precursor of the same; and a second catalyst, having a cracking function, consisting of solid particles of which at least 90% by volume having an equivalent diameter larger than 5 μm and smaller than 5 mm, containing an amorphous silico- aluminate and/or a crystalline silico-aluminate and/or an alumina, the equivalent average diameter of the solid particles of the second catalyst being greater than the equivalent average diameter of the solid particles of the first catalyst. Said catalytic system can be used in a process for the hydroconversion of heavy oils which comprises sending the heavy oil to a hydroprocessing step carried out in one or more slurry reactors, in the presence of hydrogen or a mixture of hydrogen and H 2 S, obtaining a stream of products in vapour or liquid-vapour phase, and extracting at the bottom, in continuous or discontinuous, a liquid stream containing non-converted products together with the two catalysts of said catalytic system, said liquid stream extracted then being separated into a clarified primary stream containing the first catalyst, which is at least partially recycled to the hydroprocessing step, and a stream rich in the second catalyst, which is regenerated in a regeneration step and at least partially recycled to the hydroprocessing step.
    • 一种催化体系,其特征在于它包括:具有氢化功能的第一催化剂,其由至少95体积%的当量直径小于20μm的固体颗粒组成,其含有一种或多种第VI族金属的硫化物,和 /或VIII B,可能从其油溶性前体开始制备; 和具有裂化功能的第二催化剂,其由固体颗粒组成,其中至少90体积%的当量直径大于5μm且小于5mm,其含有非晶硅铝酸盐和/或结晶硅铝酸盐 和/或氧化铝,所述第二催化剂的固体颗粒的当量平均直径大于所述第一催化剂的固体颗粒的当量平均直径。 所述催化体系可用于重油加氢转化的方法,其包括将重油送入在一种或多种淤浆反应器中,在氢气或氢气和H 2 S的混合物存在下进行的加氢处理步骤,获得流 的蒸气或液相 - 蒸气相中的产物,并且连续或不连续地将含有未转化产物的液体物流与所述催化体系的两种催化剂一起萃取,然后将所述液体流分离成澄清的初级 含有至少部分再循环到加氢处理步骤的第一催化剂的物流和富含第二催化剂的物流,其在再生步骤中再生并且至少部分地循环到加氢处理步骤。