Moving bed catalytic cracking process with platinum group metal or
rhenium supported directly on the cracking catalyst
    2.
    发明授权
    Moving bed catalytic cracking process with platinum group metal or rhenium supported directly on the cracking catalyst 失效
    用铂族金属或铼直接负载在裂化催化剂上的移动床催化裂解过程

    公开(公告)号:US4473658A

    公开(公告)日:1984-09-25

    申请号:US524103

    申请日:1983-08-17

    CPC classification number: B01J29/061 B01J29/90 B01J38/22

    Abstract: An improved moving bed continuous catalytic cracking process for cracking hydrocarbon feedstocks, such as gas oil, in the absence of added hydrogen, which includes the use of a minute amount of dispersed platinum supported directly on a cracking catalyst. The trace of platinum induces a substantial increase in the heat efficiency with which coke on catalyst is converted to CO.sub.2 in the regenerator section with minimal or no detriment to the cracking reaction.

    Abstract translation: 一种改进的移动床连续催化裂化方法,用于在没有加入氢气的情况下裂化烃原料如瓦斯油,其包括使用微量的分散的铂直接负载在裂化催化剂上。 铂的痕迹导致热效率的显着增加,在该热效率下,催化剂上的焦炭在再生器部分中转化为CO 2,同时对裂解反应的影响最小或没有损害。

    Catalytic cracking of hydrocarbons

    公开(公告)号:US4174272A

    公开(公告)日:1979-11-13

    申请号:US869079

    申请日:1978-01-13

    CPC classification number: B01J29/061 C10G11/05 C10G11/18

    Abstract: Non-hydrogenative endothermic catalytic cracking of hydrocarbon, particularly petroleum, fractions at relatively low pressures and high temperatures in a system where the endothermic heat required for cracking is supplied by catalyst as the heat transfer medium, which catalyst has been heated by burning coke deposited on the catalyst during cracking; and wherein a decomposable compound of platinum, palladium, ruthenium, iridium, osmium, rhodium or rhenium, is introduced into contact with the cracking catalyst during said process.

    Catalytic cracking process
    4.
    发明授权

    公开(公告)号:US4093535A

    公开(公告)日:1978-06-06

    申请号:US806713

    申请日:1977-06-15

    CPC classification number: C10G11/18 Y10S208/01

    Abstract: A catalytic process for cracking of gas oil is disclosed, wherein trace amounts of metals of Periods 5 and 6 of Group VIII or rhenium is added to the total catalyst inventory so as to enhance significant conversion of the CO in the regenerator while maintaining the efficiency of the cracking reaction at high levels.

    Preparation of zeolites
    5.
    发明授权
    Preparation of zeolites 失效
    沸石的制备

    公开(公告)号:US4091007A

    公开(公告)日:1978-05-23

    申请号:US627158

    申请日:1975-10-30

    Abstract: An improved method for preparing a crystalline aluminosilicate zeolite having uniform pores and greater than 40 percent crystallinity which comprises forming a critical reaction mixture containing a source of at least two cations, silica, alumina and water, wherein at least about 70 weight percent of the alumina is provided to the reaction mixture by an alumina-containing clay being added thereto, and maintaining the reaction mixture at a temperature and pressure for a time necessary to crystallize the crystalline aluminosilicate from the reaction mixture. It is desirable to preform said reaction mixture into discrete particles such as pellets or extrudates which retain their shape and acquire substantial strength in the crystallization process.

    Abstract translation: 一种制备具有均匀孔和大于40%结晶度的结晶硅铝酸盐沸石的改进方法,其包括形成含有至少两种阳离子源,二氧化硅,氧化铝和水的临界反应混合物,其中至少约70重量%的氧化铝 通过向其中加入的含氧化铝粘土提供给反应混合物,并将反应混合物保持在温度和压力下使反应混合物中结晶硅铝酸盐结晶所需的时间。 期望将所述反应混合物预制成离散的颗粒,例如颗粒或挤出物,其保持其形状并在结晶过程中获得显着的强度。

    Continuous process for manufacturing crystalline zeolites in
continuously stirred backmixed crystallizers
    7.
    发明授权
    Continuous process for manufacturing crystalline zeolites in continuously stirred backmixed crystallizers 失效
    在连续搅拌的回混结晶器中制造结晶沸石的连续方法

    公开(公告)号:US4818509A

    公开(公告)日:1989-04-04

    申请号:US921704

    申请日:1986-10-21

    CPC classification number: C01B39/02

    Abstract: A continuous process is described for manufacturing a wide variety of zeolites having selected crystal sizes and other desired characteristics. Selected raw materials are fed to a precursor tank of relatively large capacity, wherein the resultant zeolite precursor slurry is held at temperatures of up to 180.degree. F. for 4-16 hours, with high shear agitation, as an induction period. The slurry is sent to a plurality of crystallization tanks before it possesses a total solids content exceeding 10% by weight and a crystalline content exceeding 15% by weight of the total solids content. The crystallization tanks are preferably operated in two stages. The first crystallizing stage is held at a temperature of 180.degree.-250.degree. F. for 2-72 hours. The second crystallizing stage is held at a temperature greater than 250.degree. F. for 2-16 hours.

    Abstract translation: 描述了用于制造具有选定的晶体尺寸和其它期望特性的多种沸石的连续方法。 将选择的原料进料到相对大容量的前体罐中,其中所得沸石前体浆料在高剪切搅拌下作为诱导期保持在高达180°F的温度下4-16小时。 在其具有超过10重量%的总固体含量和超过总固体含量的15重量%的结晶含量之前,将浆料送至多个结晶槽。 结晶槽优选在两个阶段中操作。 第一结晶阶段在180-250°F的温度下保持2-72小时。 第二结晶阶段在大于250°F的温度下保持2-16小时。

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