Method of circulating catalyst between a catalyst regenerator and an external catalyst cooler
    42.
    发明授权
    Method of circulating catalyst between a catalyst regenerator and an external catalyst cooler 有权
    在催化剂再生器和外部催化剂冷却器之间循环催化剂的方法

    公开(公告)号:US07906697B2

    公开(公告)日:2011-03-15

    申请号:US12059717

    申请日:2008-03-31

    IPC分类号: C07C2/04

    摘要: This invention relates to efficiently regenerating catalyst particles by minimizing the formation of localized “hot spots” and “cold spots” in a regeneration zone. Specifically this invention relates to a method for controlling regenerator temperature in an oxygenates-to-olefins system, comprising the steps of: contacting an oxygenate feed in a reactor with a catalytically effective amount of molecular sieve-containing catalyst under conditions effective for converting said oxygenate to a product containing light olefins and forming a coked catalyst; contacting a portion of the coked catalyst in a regenerator, having a catalyst bed height (Hc), an inlet height (Hi), and an outlet height (Ho), with an oxygen-containing regeneration medium under conditions effective to at least partially regenerate the coked catalyst; and conducting a portion of the catalyst from the regenerator to a catalyst cooler to form a cooled catalyst portion, wherein Ho is greater than Hi.

    摘要翻译: 本发明涉及通过最小化再生区中局部“热点”和“冷点”的形成来有效地再生催化剂颗粒。 具体地说,本发明涉及一种用于控制含氧化合物至烯烃体系中的再生器温度的方法,其包括以下步骤:在有效转化所述含氧化合物的条件下使反应器中的含氧化合物进料与催化有效量的含分子筛催化剂接触 涉及含有轻质烯烃并形成焦化催化剂的产品; 在具有催化剂床高度(Hc),入口高度(Hi)和出口高度(Ho))的再生器中使一部分焦化催化剂与含氧再生介质在有效至少部分再生的条件下接触 焦化催化剂; 并将催化剂的一部分从再生器导入催化剂冷却器以形成冷却的催化剂部分,其中Ho大于Hi。

    Processes for lifting spent catalyst into a regenerator in an oxygenate to olefins reaction system
    46.
    发明授权
    Processes for lifting spent catalyst into a regenerator in an oxygenate to olefins reaction system 有权
    将废催化剂提升到含氧化合物到烯烃反应体系中的再生器的方法

    公开(公告)号:US07459595B2

    公开(公告)日:2008-12-02

    申请号:US11050199

    申请日:2005-02-03

    IPC分类号: C07C1/00 B01J20/34

    摘要: This invention provides processes for transporting catalyst, preferably in an oxygenate to olefins reaction system. In one embodiment, an oxygenate contacts molecular sieve catalyst particles in a reactor under conditions effective to form an effluent stream comprising light olefins and forming coked catalyst particles. At least a portion of the coked catalyst particles are transported from the reactor or a device associated therewith to a catalyst regenerator through a conduit in a fluidized manner with a fluidizing medium comprising air and steam. At least a portion of the coked catalyst particles are regenerated in the catalyst regenerator to form regenerated catalyst particles, which are ultimately directed back to the reactor.

    摘要翻译: 本发明提供了将催化剂,优选在含氧化合物转化为烯烃反应体系的方法。 在一个实施方案中,含氧化合物在有效形成包含轻质烯烃和形成焦化催化剂颗粒的流出物流的条件下在反应器中与分子筛催化剂颗粒接触。 焦化的催化剂颗粒的至少一部分从反应器或与其相关的装置通过管道以流化方式通过导管从包含空气和蒸汽的流化介质输送到催化剂再生器。 焦化催化剂颗粒的至少一部分在催化剂再生器中再生以形成再生的催化剂颗粒,其最终被引导回反应器。

    Isoparaffin/olefin alkylation
    49.
    发明授权
    Isoparaffin/olefin alkylation 失效
    异链烷烃/烯烃烷基化

    公开(公告)号:US5625113A

    公开(公告)日:1997-04-29

    申请号:US365334

    申请日:1994-12-28

    IPC分类号: C07C2/58 C07C2/62 C07C9/16

    摘要: A process is disclosed for alkylating an isoparaffin with an olefin comprising the steps of:(a) reacting an isoparaffin having from 4 to 8 carbon atoms with an olefin having from 2 to 12 carbon atoms in a first alkylation reaction stage at temperature from about -40.degree. C. to about 500.degree. C. and overall isoparaffin:olefin feed weight ratio of from about 1:1 to about 250:1 with a solid alkylation catalyst comprising a synthetic porous crystalline material characterized by an X-ray diffraction pattern including values substantially as set forth in Table I of the specification and having a composition comprising the molar relationshipX.sub.2 O.sub.3 :(n)YO.sub.2,wherein n is less than about 35, X is a trivalent element and Y is a tetravalent element;(b) mixing the effluent from said first alkylation stage with additional olefin to evolve an intermediate stream having an isoparaffin:olefin weight ratio of from about 2:1 to about 100:1; and(c) reacting said intermediate stream in a second alkylation stage in the absence of intermediate fractionation with a liquid acid catalyst comprising H.sub.2 SO.sub.4 to produce C.sub.5 + alkylate.

    摘要翻译: 公开了一种用烯烃烷基化异链烷烃的方法,该方法包括以下步骤:(a)使第一烷基化反应阶段中具有4至8个碳原子的异链烷烃与具有2至12个碳原子的烯烃反应, 40℃至约500℃,总异构链烷烃:烯烃进料重量比为约1:1至约250:1,其中固体烷基化催化剂包含合成多孔结晶材料,其特征在于X射线衍射图包括值 基本上如说明书的表I所述,并且具有包含摩尔关系X 2 O 3:(n)YO 2的组成,其中n小于约35,X是三价元素,Y是四价元素; (b)将来自所述第一烷基化阶段的流出物与另外的烯烃混合以产生具有约2:1至约100:1的异链烷烃:烯烃重量比的中间料流; 和(c)在不与中间分级分离的第二烷基化阶段中使所述中间物流与包含H 2 SO 4的液体酸催化剂反应,以产生C5 +烷基化物。