公开(公告)号：US20050113623A1

公开(公告)日：2005-05-26

申请号：US10720505

申请日：2003-11-24

申请人： Keith Kuechler ,  Jeffrey Brinen ,  James Lattner ,  Allen Gawlik

发明人： Keith Kuechler ,  Jeffrey Brinen ,  James Lattner ,  Allen Gawlik

IPC分类号： C07C1/20 ,  C07C1/00 ,  B01J8/04

CPC分类号： C07C1/20 ,  Y02P30/42 ,  C07C11/06 ,  C07C11/04 ,  C07C11/02

摘要： A process and apparatus are provided for converting oxygenate to olefins which comprises: contacting a feedstock comprising oxygenate with a catalyst comprising a molecular sieve under conditions effective to produce a vaporous product comprising the olefins, water and unreacted oxygenate; condensing the vaporous product to provide a liquid stream rich in the water and unreacted oxygenate, and an olefins-rich vapor stream; introducing at least part of the liquid stream to a feed tray in a fractionation tower which provides an oxygenate-rich overhead product and a water-rich liquid bottoms product; providing a liquid, oxygenate-rich stream comprising at least about 20 wt % oxygenate above the feed tray; and passing the olefins-rich vapor stream through a recovery train to recover at least some of the olefins.

摘要翻译： 提供了将含氧化合物转化为烯烃的方法和装置，其包括：在有效产生包含烯烃，水和未反应的含氧化合物的蒸气产物的条件下，使包含含氧化合物的原料与包含分子筛的催化剂接触; 冷凝蒸汽产物以提供富含水和未反应的含氧化合物的液体物流和富含烯烃的蒸汽流; 将至少部分液体物流引入分馏塔中的进料塔中，所述分馏塔提供富氧富含塔顶馏出物和富含水的液体塔底产物; 提供在所述进料盘上方含有至少约20重量％含氧化合物的液体富含氧化物流; 并使富含烯烃的蒸气流通过回收馏分以回收至少一些烯烃。