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    Dual riser fluid catalytic cracking process
    7.
    发明公开
    Dual riser fluid catalytic cracking process 失效
    双升流体催化裂化工艺

    公开(公告)号：EP0142900A3

    公开(公告)日：1986-01-22

    申请号：EP84201664

    申请日：1984-11-16

    申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

    发明人： Crocoll, James Fred

    IPC分类号： C10G11/18 ,  C10G51/02

    CPC分类号： C10G51/026 ,  C10G11/18

    摘要： An improved fluid catalytic cracking process for achieving high conversions of low quality feedstocks (containing metal contaminants, basic nitrogen and/or coke precursors) at relatively low severities, by passing the feedstock in series through a dual riser reactor system having a common catalyst stripper and regenerator, in contact with freshly regenerated catalyst which is passed in parallel from the regenerator through each of the riser reactors.

    Vented riser for stripping spent catalyst
    8.
    发明公开
    Vented riser for stripping spent catalyst 失效
    BelüftetesSteigrohrfürdie Strippung von gebrauchten Katalysatoren。

    公开(公告)号：EP0137998A2

    公开(公告)日：1985-04-24

    申请号：EP84110257.7

    申请日：1984-08-29

    申请人： ASHLAND OIL, INC.

    发明人： Hettinger, William P., Jr.

    IPC分类号： C10G11/18 ,  B01J8/22

    CPC分类号： C10G51/026 ,  B01J8/228 ,  C10G11/18

    摘要： A process for economically converting carbo-metallic oils to lighter products. The carbo-metallic oils contain 343°C+ (650°F+) material which is characterized by a carbon residue on pyrolysis of at least about 1 and a Nickel Equivalents of heavy metals content of at least about 4 parts per million. This process comprises flowing the carbo-metallic oil together with particulate cracking catalyst through a progressive flow type reactor having an elongated reaction chamber, which is at least in part vertical or inclined, for a predetermined vapor riser residence time in the range of about 0.5 to about 10 seconds, at a temperature of about 482°C (900°F) to about 760°C (1400°F), and under a pressure of about 10 to about 50 pounds per square inch absolute sufficient for causing a conversion per pass in the range of about 40 to 90% while producing coke in amounts in the range of about 6 to about 14% by weight based on fresh feed, and laying down coke on the catalyst in amounts in the range of about 0.3 to about 3% by weight. The spent, coke-laden catalyst from the stream of hydrocarbons formed by vaporized feed and resultant cracking products is separated, the sorbed hydrocarbons are stripped from the spent catalyst particles by mixing them with hot regenerated catalyst particles and passing the mixture through an elongated stripping chamber where desorbed hydrocarbons are cracked by regenerated catalyst particles which are present. The stripped catalyst is regenerated in one or more regeneration beds in one or more regeneration zones by burning the coke on the spent catalyst with oxygen. The catalyst particles are retained in the regeneration zone or zones in contact with the combustion-supporting gas for an average total residence time in said zone or zones of about 5 to about 30 minutes to reduce the level of carbon on the catalyst to about 0.25% by weight or less. The regenerated catalyst is recycled to the reactor and contacted with fresh carbo-metallic oil.

    摘要翻译： 将碳金属油经济转化为轻质产品的方法。 碳金属油。 含有343℃+（650°F +）的材料，其特征在于热分解时的碳残余量至少为约1，重金属含量的镍当量为至少约4ppm。 该方法包括使碳金属油与颗粒裂化催化剂一起通过具有细长反应室的逐步流动型反应器，所述反应室至少部分垂直或倾斜，预定蒸气提升管停留时间在约0.5至 约在900℃至约760℃（1400°F）的温度下进行，并且在约10至约50磅/平方英寸的压力下绝对足以引起每次转化 在约40至90％的范围内，同时以基于新鲜进料的约6至约14重量％的范围内的量生产焦炭，并且将催化剂上的焦炭以约0.3至约3重量％ 重量。 从蒸发进料和产生的裂解产物形成的烃流中消耗的焦炭催化剂被分离，通过将它们与热再生催化剂颗粒混合并将混合物通过细长的汽提室 其中解吸的烃被存在的再生催化剂颗粒破裂。 汽提催化剂在一个或多个再生区中的一个或多个再生床中通过用氧气在废催化剂上燃烧焦炭来再生。 催化剂颗粒保留在与燃烧载体气体接触的再生区或区域中，在所述区域中的平均总停留时间为约5至约30分钟，以将催化剂上的碳水平降低至约0.25％ 以下。 将再生的催化剂再循环到反应器中并与新鲜的碳 - 金属油接触。

    PROCESSES AND SYSTEMS FOR FLUIDIZED CATALYTIC CRACKING
    10.
    发明公开
    PROCESSES AND SYSTEMS FOR FLUIDIZED CATALYTIC CRACKING 审中-公开

    公开(公告)号：EP3362536A1

    公开(公告)日：2018-08-22

    申请号：EP15794796.1

    申请日：2015-11-06

    申请人： Saudi Arabian Oil Company

    发明人： KOSEOGLU, Omer, Refa

    IPC分类号： C10G51/02

    CPC分类号： C10G11/182 ,  C10G51/026

    摘要： Methods and systems for cracking a light fuel fraction and a heavy fuel fraction by fluidized catalytic cracking are described herein. The method for cracking may include feeding the light fuel fraction and a catalyst from a catalyst regenerator into a first reactor, cracking the light fuel fraction in the first reactor to produce an at least partially cracked light fuel fraction, transporting the at least partially cracked light fuel fraction and the catalyst from the first reactor to a second reactor, feeding the heavy fuel fraction into the second reactor, cracking the heavy fuel fraction and the at least partially cracked light fuel fraction in the second reactor to produce at least a product fuel and a spent catalyst, and transporting the spent catalyst to the catalyst regenerator and regenerating the catalyst in the catalyst regenerator.