Conversion of aromatic and olefins
    2.
    发明授权
    Conversion of aromatic and olefins 失效
    芳烃和烯烃的转化

    公开(公告)号:US5792894A

    公开(公告)日:1998-08-11

    申请号:US932377

    申请日:1997-09-07

    CPC分类号: C10G50/00 C07C2/66

    摘要: A process is disclosed for alkylating a volatile aromatic compound with a light aliphatic mono-olefinic alkylating agent and concurrently condensing the alkylating agent in the presence of a solid alkylation- and condensation-promoting catalyst and at a temperature of at least the critical temperature of the reactant mixture and at a total pressure that is above the critical pressure of the reactant mixture.

    摘要翻译: 公开了一种用轻脂肪族单烯烃烷基化剂烷基化挥发性芳香族化合物的方法,并且在固体烷基化和缩合促进催化剂的存在下并在至少临界温度的温度下同时缩合烷基化剂 反应物混合物和高于反应物混合物的临界压力的总压力。

    Multistage alkylation process
    3.
    发明授权
    Multistage alkylation process 失效
    多级烷基化方法

    公开(公告)号:US5849965A

    公开(公告)日:1998-12-15

    申请号:US861475

    申请日:1997-05-22

    摘要: In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a portion of the effluent from the primary stage is used as a diluent in the secondary stage. The alkylation reaction in each stage is catalyzed by an acid catalyst which is adsorbed on a particulate solid support.

    摘要翻译: 在多级方法中,相对非反应性的链烷基底物在初级阶段被烷基化,而较活泼的芳族底物在次级阶段被烷基化,其中至少一部分来自初级阶段的流出物在次级阶段用作稀释剂。 每个阶段的烷基化反应由吸附在颗粒状固体载体上的酸催化剂催化。

    Hydrocarbon conversion process
    4.
    发明授权
    Hydrocarbon conversion process 有权
    烃转化过程

    公开(公告)号:US6111159A

    公开(公告)日:2000-08-29

    申请号:US203019

    申请日:1998-12-01

    摘要: A method is provided for putting a fresh bed of solid phosphoric acid catalyst into service to catalyze a hydrocarbon conversion process. The method involves establishing hydrocarbon conversion conditions of temperature and pressure in the catalyst bed while it is immersed in a hydrocarbon liquid which is substantially free of water and compounds which can yield water upon contact with the catalyst. Thereafter, the catalyst bed is used to catalyze the conversion of a hydrocarbon feedstock which contains a minor amount of a hydrating agent which is effective to provide a desired level of catalyst hydration. The method permits the catalyst to be rapidly brought to an optimum level of activity for the specific hydrocarbon conversion process.

    摘要翻译: 提供了一种将新鲜的固体磷酸催化剂床用于催化烃转化过程的方法。 该方法包括在浸入基本上不含水的烃液体中和在与催化剂接触时可产生水的化合物时,在催化剂床中建立温度和压力的烃转化条件。 此后,催化剂床用于催化含有少量水合剂的烃原料的转化,其有效提供所需水平的催化剂水合。 该方法允许催化剂快速地达到特定烃转化过程的最佳活性水平。

    Olefin polymerization process
    5.
    发明授权
    Olefin polymerization process 失效
    烯烃聚合工艺

    公开(公告)号:US06025534A

    公开(公告)日:2000-02-15

    申请号:US56212

    申请日:1998-04-07

    摘要: A method is provided for regenerating a fixed bed of olefin polymerization catalyst which can be performed without taking the catalyst bed out of service. The method involves the use of two different olefin-containing feedstocks, wherein the first feedstock is a conventional olefin-containing feedstock which contains little if any content of aromatic compounds. The second feedstock contains a significant concentration of aromatic compounds. In the practice of the invention, the second feedstock is substituted for the first feedstock whenever catalyst regeneration is deemed appropriate, and the flow of the second feedstock to the catalyst bed is continued for a period of time which is effective to at least partially regenerate the catalyst.

    摘要翻译: 提供了一种用于再生烯烃聚合催化剂固定床的方法,其可以在不使催化剂床停止使用的情况下进行。 该方法涉及使用两种不同的含烯烃原料,其中第一种原料是常规的含烯烃原料,其含有少量芳族化合物。 第二原料含有显着浓度的芳族化合物。 在本发明的实践中,当催化剂再生被认为合适时,第二原料代替第一原料,并且将第二原料流向催化剂床的流程持续一段时间,这一时间段至少部分地再生 催化剂。

    Unit, system and process for catalytic cracking
    10.
    发明授权
    Unit, system and process for catalytic cracking 有权
    单元,系统和催化裂化过程

    公开(公告)号:US08137631B2

    公开(公告)日:2012-03-20

    申请号:US12333262

    申请日:2008-12-11

    IPC分类号: F27B15/08 C10G51/00

    摘要: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.

    摘要翻译: 一个示例性实施方案可以是流化催化裂化装置。 流化催化裂化装置可以包括第一提升管,第二提升管和分离区。 第一提升管可适于接收终止于具有第一容积的第一反应容器的第一进料。 第二提升管可以适于接收在具有第二容积的第二反应容器处终止的第二进料。 通常,第一体积大于第二体积。 此外,分离区可以用于接收包含至少一种催化剂和来自第一反应容器的一种或多种产物的第一混合物,以及包含至少一种催化剂和来自第二反应容器的一种或多种产物的第二混合物。 通常,第一混合物与第二混合物分离。