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    • 4. 发明授权
    • Multiple riser fluidized catalytic cracking process utilizing a C.sub.3
-C.sub.4 paraffin-rich co-feed and mixed catalyst system
    • 使用C3-C4富石蜡共同进料和混合催化剂体系的多提液流化催化裂化方法
    • US4966681A
    • 1990-10-30
    • US332418
    • 1989-03-30
    • Joseph A. HerbstHartley OwenPaul H. Schipper
    • Joseph A. HerbstHartley OwenPaul H. Schipper
    • B01J8/24B01J29/08B01J29/40B01J29/80C10G11/05C10G11/18C10G35/04C10G51/00C10G59/02C10G59/06
    • B01J29/80C10G11/05C10G11/18C10G51/00B01J2208/00283B01J2208/00442B01J2208/0053B01J29/084B01J29/40
    • A catalytic cracking process is described featuring multiple risers in which a variety of hydrocarbon conversion reactions take place, a stripping unit in which entrained hydrocarbon material is removed from catalyst and a regeneration zone in which spent cracking catalyst is regenerated, which comprises:(a) catalytically cracking a relatively high boiling hydrocarbon charge material in a first riser in the presence of both a first catalyst component which is an amorphous cracking catalyst and/or a large pore crystalline cracking catalyst and a second catalyst component which is selected from zeolite Beta and/or medium pore crystalline silicate zeolite catalyst to provide a variety of products including naphtha and C.sub.3 and/or C.sub.4 olefin;(b) thermally cracking a C.sub.3-6 paraffin-rich charge material introduced to a second riser in a lower region thereof to provide light olefins; and,(c) catalytically converting at least a portion of the light olefins resulting from step (b) within the second riser in a higher region thereof in the presence mainly of a second catalyst component which is at least one member of the group consisting of zeolite Beta and a shape-selective medium pore crystalline silicate zeolite catalyst to provide a relatively high octane gasoline product.
    • 描述了一种催化裂化方法,其特征在于具有多种烃转化反应发生的多个提升管,其中从催化剂除去夹带的烃物质的汽提单元和再生废裂解催化剂的再生区,其包括:(a) 在第一催化剂组分为无定形裂化催化剂和/或大孔结晶裂解催化剂和第二催化剂组分的存在下,在第一提升管中催化裂解相对高沸点的烃装料,所述第二催化剂组分选自沸石β和/ 或中孔结晶硅酸盐沸石催化剂,以提供各种产物,包括石脑油和C3和/或C4烯烃; (b)将引入到其下部区域中的第二提升管的C3-6石蜡富集装料热裂化以提供轻质烯烃; 和(c)在主要由第二催化剂组分存在的第二提升管中在其较高区域催化转化至少部分由步骤(b)产生的轻质烯烃,所述第二催化剂组分是至少一种由 沸石β和形状选择性中孔结晶硅酸盐沸石催化剂,以提供相对高辛烷值的汽油产品。
    • 5. 发明授权
    • Process of stripping in a catalytic cracking operation employing a
catalyst mixture which includes a shape selective medium pore silicate
zeolite component
    • 在使用包括形状选择性中孔孔隙硅酸盐沸石组分的催化剂混合物的催化裂化操作中汽提的方法
    • US4888103A
    • 1989-12-19
    • US903365
    • 1986-09-03
    • Joseph A. HerbstHartley OwenPaul H. Schipper
    • Joseph A. HerbstHartley OwenPaul H. Schipper
    • B01J8/00B01J8/12C10G11/18
    • B01J8/12B01J8/005C10G11/18
    • An improved process for stripping, or desorbing, entrained hydrocarbon material and, where present, sulfur-containing material, from a catalyst mixture recovered from a catalytic cracking reaction zone is described which comprises:(a) providing a quantity of catalyst mixture containing entrained hydrocarbon material and, optionally, sulfur-containing material, in at least one stripping zone in which a stripping gas removes said entrained hydrocarbon material and, where present, sulfur-containing material, the catalyst mixture comprising, as a first catalyst component, an amorphous and/or large pore crystalline cracking catalyst and, as a second catalyst component, a shape selective medium pore crystalline silicate zeolite catalyst, said first and second catalyst components being present in admixture within a common stripping zone or segregated into separate stripping zones; and,(b) conducting an exothermic reaction within the common stripping zone or within the separate stripping zone containing segregated second catalyst component, the heat released by the exothermic reaction providing an increase in the temperature of the catalyst in the stripping zone which results in the removal of a greater quantity of entrained hydrocarbon material and, where present, sulfur-containing material, than that occurring in the absence of such exothermic reaction.
    • 描述了一种用于从催化裂化反应区回收的催化剂混合物中汽提或解吸夹带的烃物质和存在的含硫材料的改进方法,其包括:(a)提供一定量的含有夹带烃的催化剂混合物 材料和任选的含硫材料,在至少一个汽提区中,其中汽提气体除去所述夹带的烃材料,并且在存在的情况下,含硫材料,所述催化剂混合物包含作为第一催化剂组分的无定形和 /或大孔结晶裂解催化剂,以及作为第二催化剂组分的形状选择性中孔结晶硅酸盐沸石催化剂,所述第一和第二催化剂组分以共混汽提区内混合存在或分离成单独的汽提区; 并且(b)在普通汽提区内或在含有分离的第二催化剂组分的单独的汽提区内进行放热反应,通过放热反应释放的热量提供了汽提区中的催化剂温度的升高,这导致了 除了在不存在这种放热反应的情况下,更多量的夹带的烃材料和存在的含硫材料。