METHOD OF CIRCULATING CATALYST BETWEEN A CATALYST REGENERATOR AND AN EXTERNAL CATALYST COOLER
    32.
    发明公开
    METHOD OF CIRCULATING CATALYST BETWEEN A CATALYST REGENERATOR AND AN EXTERNAL CATALYST COOLER 有权
    方法KATALYSATORZIRKULIERUNG之间的催化剂再生器和外部催化剂冷却器

    公开(公告)号:EP2238216A1

    公开(公告)日:2010-10-13

    申请号:EP08871660.0

    申请日:2008-12-16

    IPC分类号: C10G3/00 C07C1/20 B01J38/30

    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: 本发明涉及通过在再生区最小化局部“热点”和“冷点”的形成,有效地再生催化剂颗粒。 具体地,本发明涉及一种方法,用于在含氧化合物向烯烃的系统在控制再生器的温度,包括以下步骤:条件下与催化有效量的含分子筛催化剂的含氧化合物进料接触在反应器中有效,用于将所述含氧化合物 到一个产品包含轻质烯烃和形成结焦催化剂; 在的条件下含氧再生介质接触在再生器中的结焦的催化剂的一部分,具有一个催化剂床层高度(Hc)的至入口高度(您好),并且在出口的高度(HO),以有效地至少部分地再生 结焦的催化剂; 并进行从再生器的催化剂的部分,以催化剂冷却器以形成冷却的一部分催化剂,worin Ho大于您好更大。