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    Catalytic cracking
    3.
    发明授权
    Catalytic cracking 失效
    催化裂化

    公开(公告)号：US4416765A

    公开(公告)日：1983-11-22

    申请号：US408109

    申请日：1982-08-16

    申请人： Arthur W. Chester ,  William E. Cormier, Jr. ,  William A. Stover

    发明人： Arthur W. Chester ,  William E. Cormier, Jr. ,  William A. Stover

    IPC分类号： C10G11/02 ,  B01J29/08 ,  B01J29/40 ,  B01J29/65 ,  B01J29/70 ,  B01J29/80 ,  B01J37/04 ,  C10G11/00 ,  C10G11/05

    CPC分类号： B01J37/04 ,  B01J29/40 ,  B01J29/80 ,  C10G11/05 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  B01J29/084 ,  B01J29/65 ,  B01J29/70 ,  Y10S208/02

    摘要： Octane and overall product quality improvement in catalytic cracking processes utilizing an essentially entirely amorphous cracking catalyst can be attained by using instead a catalyst comprising a minor amount, e.g. from about 0.01 to about 25 weight percent, of a class of crystalline zeolites characterized by a silica to alumina mole ratio greater than about 12 and a constraint index of about 1 to 12. The crystalline zeolites may be added to the conventional amorphous cracking catalyst in the cracking process by way of adding a separate additive composition in an amount which provides the zeolite component of the additive composition in said minor amount of the total catalyst in the cracking process.

    摘要翻译： 使用基本上完全无定形裂化催化剂的催化裂化方法的辛烷值和总体产品质量改进可以通过使用代替如下的催化剂来实现： 约0.01至约25重量％的一类结晶沸石，其特征在于二氧化硅与氧化铝的摩尔比大于约12，约束指数为约1至12。结晶沸石可以加入常规无定形裂解催化剂中 通过在裂化过程中以提供添加剂组合物的沸石组分在所述少量总催化剂中的量添加单独的添加剂组合物来进行裂化过程。

    Selective high conversion cracking process
    5.
    发明授权
    Selective high conversion cracking process 失效
    选择性高转化裂解过程

    公开(公告)号：US4137152A

    公开(公告)日：1979-01-30

    申请号：US850183

    申请日：1977-11-10

    申请人： Arthur W. Chester ,  Albert B. Schwartz ,  William A. Stover

    发明人： Arthur W. Chester ,  Albert B. Schwartz ,  William A. Stover

    IPC分类号： B01J29/08 ,  B01J29/12 ,  B01J29/18 ,  B01J29/80 ,  C10G11/05 ,  B01J8/24 ,  C07C15/02 ,  C10G11/04

    CPC分类号： C10G11/05 ,  B01J29/80 ,  B01J2229/26 ,  B01J2229/42 ,  B01J29/084 ,  B01J29/126 ,  B01J29/18

    摘要： A catalytic process is provided for cracking a hydrocarbon charge stock containing aromatic nuclei components and non-aromatic nuclei components which involves contacting such chargestock with a catalyst composition having an alkali metal content less than about 1.5 weight percent and containing a mixture of faujasite and mordenite in which contacting takes place under catalytic cracking conditions of such severity that the conversion level exceeds that attributable to conversion of the non-aromatic nuclei portion of the chargestock. Under such conditions, the coke yield is substantially lower than would be obtained with the same catalyst in the absence of mordenite at the same level of conversion.

    摘要翻译： 提供了一种催化方法，用于裂解含有芳族核组分和非芳族核组分的烃电荷原料，其包括使这些电荷与碱金属含量低于约1.5重量％的催化剂组合物接触并含有八面沸石和丝光沸石的混合物 该接触发生在催化裂解条件下，其严重程度使得转化率超过归因于电荷转运的非芳族核部分的转化率。 在这种条件下，焦炭产量基本上低于在不存在丝光沸石时相同催化剂在相同转化水平下获得的焦炭产量。