公开(公告)号：US20130165716A1

公开(公告)日：2013-06-27

申请号：US13727778

申请日：2012-12-27

Applicant: SHELL OIL COMPANY

Inventor： Leslie Andrew CHEWTER ,  Sivakumar Sadasivan VIJAYAKUMARI ,  Jeroen Van WESTRENEN

IPC: C07C2/66

CPC classification number: C07C2/66 ,  C07C2/864 ,  C07C4/06 ,  C07C2529/40 ,  C07C2529/70 ,  Y02P20/125 ,  C07C15/08

Abstract: A process preparing an aromatic product comprising xylene, the process comprising: a) cracking a feedstock to obtain a cracker effluent comprising olefins and aromatics; b) converting an oxygenate feedstock in an oxygenate-to-olefins conversion system, comprising a reaction zone in which an oxygenate feedstock is contacted with a catalyst to obtain a conversion effluent comprising benzene, toluene, xylene and olefins; c) combining at least part of the cracker effluent and at least part of the conversion effluent to obtain a combined effluent, the combined effluent comprising aromatics; d) separating at least a portion of the benzene and/or toluene from the combined effluent to form a benzene and/or toluene stream; e) separating the olefins from the combined effluent; f) separating xylene from the combined effluent to form a xylene stream; and g) recycling at least a part of the benzene and/or toluene streams as recycled aromatics to step b).

Abstract translation: 一种制备包含二甲苯的芳族产物的方法，该方法包括：a）裂化原料以获得包含烯烃和芳族化合物的裂化器流出物; b）转化含氧化合物至烯烃转化体系中的含氧化合物原料，其包含其中含氧化合物原料与催化剂接触的反应区，以获得包含苯，甲苯，二甲苯和烯烃的转化流出物; c）将至少部分裂化器流出物和至少部分转化流出物混合以获得组合的流出物，所述组合流出物包含芳族化合物; d）将苯和/或甲苯的至少一部分与合并的流出物分离以形成苯和/或甲苯料流; e）从合并的流出物中分离烯烃; f）从合并的流出物中分离二甲苯以形成二甲苯流; 和g）将至少一部分苯和/或甲苯物流作为再循环芳烃回收至步骤b）。