Hydrocarbons cracking process and catalyst for use in same
    3.
    发明授权
    Hydrocarbons cracking process and catalyst for use in same 失效
    碳氢化合物裂解过程和催化剂用于其中

    公开(公告)号:US4971935A

    公开(公告)日:1990-11-20

    申请号:US418616

    申请日:1990-01-08

    IPC分类号: B01J29/06 B01J29/08 C10G11/05

    摘要: In a catalytic cracking process which includes contacting a hydrocarbon feedstock in a contacting zone in the presence of solid composition containing molecular sieve-containing catalyst capable of promoting hydrocarbon cracking at conditions effective to crack the hydrocarbon feedstock to lower boiling components, the improvement comprising conducting the contacting in the presence of at least one metal component, other than the catalyst, containing calcium and tin. A composition of matter comprising such catalyst and metal component is also disclosed.

    摘要翻译: 在催化裂化方法中,包括在含有分子筛的催化剂的固体组合物的存在下使烃原料接触,所述分子筛催化剂能够在有效裂解烃原料以降低沸点组分的条件下促进烃裂解,所述改进包括进行 在至少一种含有钙和锡的催化剂以外的金属组分的存在下接触。 还公开了包含这种催化剂和金属组分的物质组合物。

    Zeolitized composite bodies and manufacture thereof
    4.
    发明授权
    Zeolitized composite bodies and manufacture thereof 失效
    沸石复合体及其制造

    公开(公告)号:US4235753A

    公开(公告)日:1980-11-25

    申请号:US21214

    申请日:1979-03-16

    摘要: An improved process for the production of mechanically strong shaped crystalline zeolitic aluminosilicate bodies from precursor bodies composed of kaolin clay calcined at elevated temperature, the crystallized bodies having essentially the same size and shape as the precursor bodies. Conversion of the calcined clay contained in the precursor bodies to a mixture of crystalline zeolitic alluminosilicate component and a porous amorphous silica-alumina component takes place as a result of reaction between the calcined clay and an aqueous alkaline liquid in which the bodies are immersed. The improved process features the presence of a solution of aluminosilicate nucleation centers during such reaction.

    摘要翻译: 一种用于在由高温煅烧的高岭土组成的前体体中生产机械强力形状的结晶沸石铝硅酸盐体的改进方法,结晶体具有与前体体基本相同的尺寸和形状。 作为煅烧粘土与浸渍体的水性碱性液体之间的反应的结果,将前驱体中包含的煅烧粘土转化为结晶沸石硅铝酸盐组分和多孔无定形二氧化硅 - 氧化铝组分的混合物。 改进的方法特征在于这种反应期间硅铝酸盐成核中心的溶液的存在。

    Conversion of nitrogen oxides
    5.
    发明授权
    Conversion of nitrogen oxides 失效
    氮氧化物的转化

    公开(公告)号:US4157375A

    公开(公告)日:1979-06-05

    申请号:US891503

    申请日:1978-03-30

    摘要: Zeolite catalyzed reduction of nitrogen oxides in exhaust gases is conducted with catalytic elements in the form of multi-channel structures in which parallel channels are defined by thin walls constituted by refractory oxides having zeolite dispersed therein and accessable to diffusion from surfaces of the channel walls. Such structures, preferably monolithic honeycomb forms, are prepared by calcining extruded or cast forms or kaolin at elevated temperatures and treating the calcined kaolin honeycomb with a caustic solution to develop a desired zeolite within the wall members and etch the wall surfaces to provide diffusion paths to and from the embedded zeolite. Such structures are peculiarly suited to high space velocity processes such as reduction of nitrogen oxides in providing for protection of the zeolite catalyst against erosion by high velocity gas streams while also providing adequate diffusivity for reactants at the high space velocities typical of the known reaction between oxides of nitrogen and a reducing agent such as ammonia.

    摘要翻译: 沸石催化的废气中的氮氧化物的还原是以多通道结构形式的催化元素进行的,其中平行通道由易失性氧化物构成的薄壁限定,其中沸石分散在其中并可从通道壁的表面扩散。 这种结构,优选整体式蜂窝形式,通过在升高的温度下煅烧挤出或浇铸的形式或高岭土来制备,并用苛性碱溶液处理煅烧的高岭土蜂窝体,以在壁构件内形成所需的沸石,并蚀刻壁表面以提供扩散路径 和嵌入沸石。 这样的结构特别适用于高空间速度过程,例如减少氮氧化物,以保护沸石催化剂免受高速气流的侵蚀,同时还为氧化物中已知反应典型的高空速提供了足够的反应物扩散性 的氮气和还原剂如氨。

    Process for production of high octane gasoline from catalytic cracking
unit
    9.
    发明授权
    Process for production of high octane gasoline from catalytic cracking unit 失效
    从催化裂化装置生产高辛烷值汽油的方法

    公开(公告)号:US4325813A

    公开(公告)日:1982-04-20

    申请号:US173532

    申请日:1980-07-30

    IPC分类号: C10G11/05 C10G11/18

    CPC分类号: C10G11/05 C10G2400/02

    摘要: This invention provides an improvement in the operation of an FCCU such as to maintain the octane rating of the gasoline fraction from the cracker at a high level over repeated cycles of cracking charge and regeneration by using fresh zeolitic catalyst particles having an alkali metal oxide less than about 1.5% (based on the zeolite content) and controlling the amount of alkali metal oxide that comes into contact with catalyst inventory throughout cracking, stripping and regeneration so as to maintain alkali metal oxide content of equilibrium catalyst below 2.0%, based on the weight of zeolite in the fresh zeolitic catalyst.

    摘要翻译: 本发明提供了一种FCCU操作的改进,例如,通过使用碱金属氧化物的新沸石催化剂颗粒小于或等于的新沸石催化剂颗粒,在裂化装料和再生的重复循环中,将来自裂化器的汽油馏分的辛烷值保持在高水平 约1.5%(基于沸石含量),并且控制在开裂,汽提和再生期间与催化剂存量接触的碱金属氧化物的量,以便将平衡催化剂的碱金属氧化物含量保持在2.0%以下,基于重量 的新沸石催化剂中的沸石。