公开(公告)号：US20030130549A1

公开(公告)日：2003-07-10

申请号：US10277694

申请日：2002-10-22

申请人： China Petroleum & Chemical Corporation ,  Shanghai Research Institute of Petrochemical Technology

发明人： Zaiku Xie ,  Weisheng Yang ,  Dejin Kong ,  Dongmao Zhu

IPC分类号： C07C015/12

CPC分类号： C07C15/08 ,  C07C6/123 ,  C07C6/126 ,  C07C15/04 ,  C07C2529/26 ,  C07C2529/44 ,  C07C2529/48 ,  C07C2529/78 ,  Y02P20/52

摘要： The present invention relates to a process for the selective disproportionation of toluene and the disproportionation and transalkylation of toluene and C9null aromatics to mainly solve the problems in the prior arts of the great amount of recycle stream, high energy consumption or harsh requirement for the reaction feedstocks. The present invention has better solved these problems by the technical solution using a process for selective disproportionation of toluene to produce mixed xylenes containing a high concentration of p-xylene, and subsequent disproportionation and transalkylation of C9null aromatics and toluene to produce benzene and the mixed xylenes which are in the thermodynamic equilibrium. The process is applicable to the industrial production.

摘要翻译： 本发明涉及甲苯的选择性歧化和甲苯和C9 +芳族化合物的歧化和烷基转移的方法，主要解决了现有技术中大量循环流的问题，高能耗或对反应原料的苛刻要求 。 本发明通过使用选择性歧化甲苯以产生含有高浓度对二甲苯的混合二甲苯的方法的技术解决方案更好地解决了这些问题，以及随后C9 +芳族化合物和甲苯的歧化和烷基转移以产生苯和混合二甲苯 它们处于热力学平衡状态。 该过程适用于工业生产。