公开(公告)号：US20170297986A1

公开(公告)日：2017-10-19

申请号：US15455181

申请日：2017-03-10

Applicant: ExxonMobil Research and Engineering Company

Inventor： Anita S. LEE ,  Jihad M. DAKKA ,  Arun K. SHARMA ,  Michel DAAGE ,  Preeti KAMAKOTI ,  Ronald SURYO ,  Chuansheng BAI ,  J. Timothy CULLINANE

IPC: C07C41/09 ,  C01B3/34 ,  C07C29/151

CPC classification number: C07C41/09 ,  C01B3/34 ,  C01B2203/0216 ,  C01B2203/0233 ,  C01B2203/06 ,  C01B2203/061 ,  C07C29/151 ,  C07C41/01 ,  C07C43/043

Abstract: Integrated methods and systems are disclosed for the production of dimethyl ether. The method may include reforming natural gas to syngas in a first reactor; contacting the syngas produced in the first reactor with a catalyst system in a second reactor to produce dimethyl ether and carbon dioxide; and supplying steam as a cofeed to at least one of the first reactor and the second reactor in an amount sufficient to achieve a Mm value of 1.4 to 1.8 or to improve the hydrocarbon or oxygenate selectivity.