公开(公告)号：US20150353440A1

公开(公告)日：2015-12-10

申请号：US14655345

申请日：2013-12-24

Applicant: SHELL OIL COMPANY

Inventor： Antonius Gijsbertus Johannes KLOTH ,  Sivakumar SADASIVAN VIJAYAKUMARI ,  Jeroen VAN WESTRENEN

IPC: C07C1/20

CPC classification number: C07C1/20 ,  C07C7/005 ,  C07C2529/00 ,  Y02P30/42 ,  Y02P30/48 ,  C07C11/04 ,  C07C11/06

Abstract: The invention relates to process for the preparation of an olefinic product comprising ethylene and/or propylene from an oxygenate, the process comprising the following steps: a) an oxygenate conversion step wherein a gaseous effluent comprising olefins and a water-soluble oxygenate is obtained; b) separation of water from the effluent; c) compression of the effluent; d) acid gas removal from the compressed gaseous effluent obtained in step c), wherein the compressed gaseous effluent is treated with a caustic solution in a caustic tower; and e) separating the olefinic product from the gaseous effluent treated in step d), wherein, in a final stage in the caustic tower, water-depleted compressed gaseous effluent is treated with a water stream that is essentially free of water-soluble oxygenate and a spent water stream comprising caustic and water-soluble oxygenate is obtained, which spent water stream is withdrawn from the process.

Abstract translation: 本发明涉及从含氧化合物制备包含乙烯和/或丙烯的烯烃产物的方法，该方法包括以下步骤：a）含氧化合物转化步骤，其中获得包含烯烃和水溶性含氧化合物的气态流出物; b）将水从流出物中分离出来; c）流出物的压缩; d）从步骤c）中获得的压缩气态流出物中除去酸性气体，其中将压缩的气态流出物用苛性塔中的苛性碱溶液处理; 和e）从在步骤d）中处理的气态流出物中分离烯烃产物，其中在苛性塔中的最后阶段，用基本上不含水溶性含氧化合物的水流处理含水贫化的压缩气体流出物， 得到包含苛性和水溶性含氧化合物的废水流，从该方法中取出废水流。

公开(公告)号：US20160355448A1

公开(公告)日：2016-12-08

申请号：US15103006

申请日：2013-12-13

Applicant: SHELL OIL COMPANY

Inventor： Antonius Gijsbertus Johannes KLOTH ,  Sivakumar SADASIVAN VIJAYAKUMARI ,  Jeroen VAN WESTRENEN

IPC: C07C1/20

CPC classification number: C07C1/20 ,  B01D17/045 ,  C07C2529/00 ,  C07C2529/40 ,  C07C2529/70 ,  C10G3/42 ,  Y02P30/42 ,  C07C11/04 ,  C07C11/02 ,  C07C11/06

Abstract: The invention provides a process for the preparation of an olefinic product, the process comprising the steps of: (a) reacting an oxygenate feedstock, comprising oxygenate, in an oxygenate reaction zone in the presence of a catalyst comprising a molecular sieve, at a temperature in the range of from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to provide a cooled reaction effluent stream at a temperature greater than the dew point temperature of reaction effluent stream; (c) passing the cooled reaction effluent stream into a quench tower and contacting the cooled reaction effluent stream with a first aqueous liquid in the presence of at least one set of quench tower internals, to produce a quench tower gaseous stream comprising the olefinic product and a quench tower liquid stream comprising condensed material; and (d) separating the quench tower liquid stream into a hydrocarbon quench tower liquid stream and an aqueous quench tower liquid stream in the presence of one or more coalescers.

Abstract translation: 本发明提供了一种制备烯烃产物的方法，该方法包括以下步骤：（a）在包含分子筛的催化剂存在下，在含氧化合物反应区中使含氧化合物的含氧化合物原料在温度 在350至1000℃的范围内，以产生至少包含含氧化合物，烯烃，水和酸性副产物的反应流出物流; （b）通过间接热交换冷却反应流出物流，以在高于反应流出物流的露点温度的温度下提供冷却的反应流出物流; （c）将冷却的反应流出物流送入骤冷塔并在至少一组骤冷塔内部存在下将冷却的反应流出物流与第一含水液体接触，以产生包含烯烃产物的骤冷塔气流，和 包括冷凝材料的骤冷塔液流; 和（d）在一种或多种聚结器的存在下将骤冷塔液流分离成烃淬火塔液流和水淬火塔液流。