公开(公告)号：US20150284302A1

公开(公告)日：2015-10-08

申请号：US14439389

申请日：2013-10-29

Applicant: SHELL OIL COMPANY

Inventor： Antonius Gijsberius Johannes Kloth ,  Sivakumar SADASIVAN Vijayakumari ,  Jeroen Van Westrenen

IPC: C07C1/20 ,  C07C4/04

CPC classification number: C07C1/20 ,  C07C4/04 ,  C07C2529/40 ,  C10G3/49 ,  C10G9/00 ,  C10G2400/20 ,  Y02P30/42 ,  C07C11/02

Abstract: The invention provides a process for the preparation of an olefinic product, the comprising:(a) reacting an oxygenate to produce an effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the effluent stream by means of an indirect heat exchange to a temperature greater than the dew point temperature of effluent stream; (c) further rapidly cooling the effluent stream to a temperature at or lower than the dew point temperature of the reaction effluent stream by direct injection of a first aqueous liquid into the effluent stream, to form a quench effluent stream; (d) separating the first quench effluent stream into a liquid quench stream and a gaseous quench stream; and passing the gaseous quench stream into a quench tower and contacting the gaseous quench stream with a second aqueous liquid, to produce a quench tower gaseous stream comprising the olefinic product.

Abstract translation: 本发明提供了制备烯烃产物的方法，其包括：（a）使含氧化合物反应以产生流出物流，至少包含含氧化合物，烯烃，水和酸性副产物; （b）通过间接热交换将流出物流冷却到大于流出物流的露点温度的温度; （c）通过将第一含水液体直接注入流出物流中，将流出物流进一步快速冷却至等于或低于反应流出物流的露点温度的温度，以形成骤冷流出物流; （d）将第一骤冷流出物流分离成液体骤冷流和气态骤冷流; 并将气态骤冷料流送入骤冷塔并将气态骤冷料流与第二含水液体接触，以产生包含烯烃产物的骤冷塔气流。