Multiple riser fluidized catalytic cracking process utilizing a C.sub.3
-C.sub.4 paraffin-rich co-feed and mixed catalyst system
    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 失效
    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

    公开(公告)号:US4966681A

    公开(公告)日:1990-10-30

    申请号:US332418

    申请日:1989-03-30

    摘要: 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.

    摘要翻译: 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。

    Process of stripping in a catalytic cracking operation employing a
catalyst mixture which includes a shape selective medium pore silicate
zeolite component
    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 失效
    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

    公开(公告)号:US4888103A

    公开(公告)日:1989-12-19

    申请号:US903365

    申请日:1986-09-03

    IPC分类号: B01J8/00 B01J8/12 C10G11/18

    CPC分类号: B01J8/12 B01J8/005 C10G11/18

    摘要: 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.

    摘要翻译: 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。

    Process of preparing high purity alumina bodies
    6.
    发明授权
    Process of preparing high purity alumina bodies 失效
    制备高纯氧化铝体的工艺

    公开(公告)号:US4379134A

    公开(公告)日:1983-04-05

    申请号:US347336

    申请日:1982-02-11

    IPC分类号: B01J21/04 C01F7/02

    摘要: High purity alpha-alumina bodies useful as catalyst supports are made by peptizing boehmite alumina in an acidic mixture containing fluoride anions, extruding the peptized alumina into shaped bodies and drying and calcining the bodies. The alpha-alumina bodies are characterized by a narrow pore-size distribution, having 85 percent of the total pore volume comprising pores of a diameter of from 10,000 to 200,000 Angstroms and by a surface area of less than one square meter per gram.

    摘要翻译: 用作催化剂载体的高纯度α-氧化铝体是通过将勃姆石氧化铝在含氟阴离子的酸性混合物中胶化,将胶体化氧化铝挤出成型体并干燥和煅烧体来制备的。 α-氧化铝体的特征在于窄的孔径分布,其总孔体积的85%包括直径为10,000至200,000埃的孔,并且表面积小于1平方米/克。

    Catalytic conversion with improved catalyst
    7.
    发明授权
    Catalytic conversion with improved catalyst 失效
    催化转化催化剂改进

    公开(公告)号:US5348643A

    公开(公告)日:1994-09-20

    申请号:US090872

    申请日:1993-07-13

    摘要: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises clay and a zeolite component, at least one of which has been treated with a phosphorus-containing compound, for example, ammonium dihydrogen phosphate or phosphoric acid, and which is spray dried at a low pH, preferably lower than about 3. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline and increased lower olefins, especially propylene and butylene.

    摘要翻译: 提供了一种用于在包含粘土和沸石组分的催化剂组合物中转化原料烃化合物的方法,其中至少一种已经用含磷化合物,例如磷酸二氢铵或磷酸二氢铵处理,并且是喷雾 在低pH,优选低于约3℃下干燥。本发明的一个实施方案包括改进的催化裂化方法以产生高辛烷值汽油和增加的低级烯烃,特别是丙烯和丁烯。

    Catalytic cracking process utilizing a zeolite beta catalyst synthesized
with a chelating agent
    8.
    发明授权
    Catalytic cracking process utilizing a zeolite beta catalyst synthesized with a chelating agent 失效
    使用与螯合剂合成的沸石β催化剂的催化裂化方法

    公开(公告)号:US5232579A

    公开(公告)日:1993-08-03

    申请号:US715189

    申请日:1991-06-14

    IPC分类号: B01J29/70 B01J29/80 C01B39/48

    摘要: A catalytic cracking process for converting a hydrocarbon fraction, preferably boiling in the range of a heavy gas oil, is disclosed in which the cracking catalyst is a large crystal fully crystalline zeolite Beta having a broad range of silica-to-alumina mole ratios, i.e. 20->1000. The zeolite Beta catalyst is synthesized with a nitrogenous organic chelating agent, such as a tertiary alkanolamine, preferably triethanolamine, in the synthesis mixture along with at least one source of organic directing agent such as tetraethylammonium hydroxide, tetraethylammonium bromide and tetraethylammonium fluoride. The zeolite Beta can be used as a stand alone catalyst or an additive catalyst for hydrocarbon cracking reactions along with another molecular seive type catalyst such as a faujasite catalyst or ZSM-5. The large crystal zeolite Beta can also be treated with a source of phosphorus to enhance the properties of the zeolite.

    摘要翻译: 公开了一种用于转化优选在重质瓦斯油范围内沸腾的烃馏分的催化裂化方法,其中裂化催化剂是具有宽范围二氧化硅与氧化铝摩尔比的大晶体完全结晶沸石β,即 20-> 1000。 沸石β催化剂与合成混合物中的含氮有机螯合剂如叔链烷醇胺,优选三乙醇胺一起,与至少一种有机导向剂如四乙基氢氧化铵,四乙基溴化铵和四乙基氟化铵源一起合成。 β沸石可以用作独立催化剂或用于烃裂化反应的添加剂催化剂以及另一种分子筛型催化剂如八面沸石催化剂或ZSM-5。 也可以用磷源处理大的晶体沸石β以增强沸石的性能。