Oxygenate to olefin process
    1.
    发明授权
    Oxygenate to olefin process 有权
    氧化烯到烯烃工艺

    公开(公告)号:US06965057B2

    公开(公告)日:2005-11-15

    申请号:US10807818

    申请日:2004-03-24

    摘要: The invention relates to a process for converting an oxygenate feedstock into an olefin product stream comprising (a) contacting an oxygenate feedstock with a molecular sieve catalyst in a reactor under conditions effective to convert the feedstock into an olefin product stream and to form carbonaceous deposits on the catalyst; (b) contacting at least a portion of the catalyst having said carbonaceous deposits with an oxygen containing gas under conditions effective to obtain a regenerated catalyst having a reduced carbonaceous deposit level and having an increased molecular oxygen content; (c) removing at least 60% by volume of said molecular oxygen from the regenerated catalyst based upon the total volume of molecular oxygen; (d) returning said regenerated catalyst to said reactor; and (e) repeating steps (a)–(d).

    摘要翻译: 本发明涉及一种将含氧化合物原料转化成烯烃产物流的方法,该方法包括(a)在有效将原料转化成烯烃产物流并形成碳质沉积物的条件下,使反应器中的含氧化合物原料与分子筛催化剂接触 催化剂; (b)在有效获得具有降低的碳沉积物水平并且具有增加的分子氧含量的再生催化剂的条件下使至少一部分具有所述碳质沉积物的催化剂与含氧气体接触; (c)基于分子氧的总体积从再生催化剂中除去至少60体积%的所述分子氧; (d)将所述再生催化剂返回到所述反应器; 和(e)重复步骤(a) - (d)。

    Oxygenate to olefin manufacture and recovery process
    3.
    发明授权
    Oxygenate to olefin manufacture and recovery process 有权
    氧化烯与烯烃的制备和回收过程

    公开(公告)号:US07879920B2

    公开(公告)日:2011-02-01

    申请号:US11097809

    申请日:2005-04-01

    IPC分类号: C07C27/26

    CPC分类号: C07C1/20 C07C11/02

    摘要: This invention is directed to methods for forming an olefin stream from a methanol stream. A lower grade methanol, such as chemical grade or crude methanol, can be used as feed to form the olefin stream. The process uses a relatively simple distillation type step to vaporize a portion of the methanol feed stream and send the resulting vapor stream to a reaction unit to form the olefin stream. In addition, the invention provides the ability to operate the downstream recovery units with reduced fouling or plugging due to the presence of fine solids components.

    摘要翻译: 本发明涉及从甲醇流形成烯烃流的方法。 低级甲醇如化学级或粗甲醇可用作进料以形成烯烃流。 该方法使用相对简单的蒸馏步骤来蒸发一部分甲醇进料流并将所得蒸气流送至反应单元以形成烯烃流。 此外,本发明提供了由于存在细固体组分而使下游回收单元具有减少的结垢或堵塞的能力。

    Method of circulating catalyst between a catalyst regenerator and an external catalyst cooler
    5.
    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
    6.
    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。

    Method Of Circulating Catalyst Between A Catalyst Regenerator And An External Catalyst Cooler
    8.
    发明申请
    Method Of Circulating Catalyst Between A Catalyst Regenerator And An External Catalyst Cooler 有权
    催化剂再生器与外部催化剂冷却器之间循环催化剂的方法

    公开(公告)号:US20090192341A1

    公开(公告)日:2009-07-30

    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,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的催化剂接触 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。