公开(公告)号：US20100076227A1

公开(公告)日：2010-03-25

申请号：US12594006

申请日：2008-03-27

申请人： Zheng Li ,  Qiang Fu ,  Chaogang Xie ,  Minggang Li ,  Anguo Mao ,  Lisheng Li ,  Genquan Zhu ,  Fengmei Zhang ,  Yinbin Luo

发明人： Zheng Li ,  Qiang Fu ,  Chaogang Xie ,  Minggang Li ,  Anguo Mao ,  Lisheng Li ,  Genquan Zhu ,  Fengmei Zhang ,  Yinbin Luo

IPC分类号： C07C41/09

CPC分类号： B01J29/90 ,  B01J29/005 ,  B01J29/088 ,  B01J29/46 ,  B01J29/85 ,  B01J2229/42 ,  C07C41/09 ,  Y02P20/584 ,  Y02P20/588 ,  C07C43/043

摘要： The present invention provides a fluidized catalytic process for production of dimethyl ether from methanol, wherein said process is carried out in a reactor in which the catalyst is in a fluidized state. Said process comprises the following steps of (1) feeding the methanol feedstock via two or more locations selected from the bottom, lower part, middle part and upper part of the reactor, contacting with the catalyst for preparation of dimethyl ether by methanol dehydration, carrying out the reaction of preparing dimethyl ether by methanol dehydration to obtain the reaction stream, separating said reaction stream to obtain a coked catalyst and a crude product primarily containing the target product, i.e. dimethyl ether; (2) totally or partially feeding the coked catalyst obtained in step (1) into a regenerator in a continuous or batch manner for regeneration via coke-burning, the regenerated catalyst being directly recycled to step (1) after being totally or partially cooled.

摘要翻译： 本发明提供了一种用于从甲醇生产二甲醚的流化催化方法，其中所述方法在催化剂处于流化状态的反应器中进行。 所述方法包括以下步骤：（1）经由选自反应器的底部，底部，中部和上部的两个或多个位置进料甲醇原料，与甲醇脱水制备二甲醚的催化剂接触，携带 通过甲醇脱水制备二甲醚以获得反应流的反应，分离所述反应流，得到主要含有目标产物（即二甲醚）的焦化催化剂和粗产物; （2）将在步骤（1）中获得的焦化催化剂全部或部分地以连续或间歇方式进料到再生器中，以通过焦炭燃烧再生，再生催化剂在全部或部分冷却后直接再循环到步骤（1）。