专利检索 ap:("John Paul Breen" OR "Robert Burch" OR "Paul John Collier" OR "Stanislaw Edmund Golunski") AND inv:"John Paul Breen" 第 1 页

1.

发明授权
Process for producing paraxylene by methylating toluene with methanol at a low contacting time 失效
标题翻译：在低接触时间用甲醇甲苯化甲苯生产对二甲苯的方法

公开(公告)号：US07321072B2

公开(公告)日：2008-01-22

申请号：US10545770

申请日：2004-02-18

申请人： John Paul Breen , Robert Burch , Paul John Collier , Stanislaw Edmund Golunski

发明人： John Paul Breen , Robert Burch , Paul John Collier , Stanislaw Edmund Golunski

IPC分类号： C07C2/66

CPC分类号： C07C2/864 , C07C2529/40 , C07C15/08

摘要： A process for producing para-xylene by the selective methylation of toluene comprising contacting a reactant mixture comprising toluene, methanol and added water, with an oxide modified ZSM-5 zeolite catalyst in a flow reactor in conditions selected to limit coke formation on the catalyst and at a contact time, between reactant mixture and catalyst, of less than 1 second.

摘要翻译： 通过甲苯的选择性甲基化生产对二甲苯的方法包括将包含甲苯，甲醇和加入的水的反应物混合物与氧化物改性的ZSM-5沸石催化剂在流动反应器中接触以选择以限制在催化剂上形成焦炭的条件; 在接触时间，反应物混合物和催化剂之间，小于1秒。