【求助】求文献（外文）！

第２篇可以在“学术google”以题名检索，第２条信息就是的。只是有点可惜有两页看不到（版权问题）

A Novel Mechanism of Catalyst Deactivation in Liquid Phase Synthesis Gas-to-DME Reactions
XD Peng, BA Toseland, RP Underwood - Catalyst Deactivation 1997, 1997 - books.google.com
e! 997 Elsevier Science BV All rights reserved Catalyst Deactivation 1997 CH
Bartholomew and GA Fuentes, editors 175 A Novel Mechanism of Catalyst Deactivation
in Liquid Phase Synthesis Gas-to-DME Reactions XD Peng*, BA Toseland and RP Underwood ...
被引用次数：3 - 相关文章 - 网页搜索

谢谢楼上的！还请各位多多帮忙！

没有办法下不良。
有摘要
A novel mechanism of catalyst deactivation in liquid phase synthesis Gas-to-DME reactions

X.D. Penga, B.A. Toselanda and R.P. Underwooda

aAir Products and Chemicals, Inc., 7201 Hamilton Boulevard, Allentwon, PA 18195-1501, USA


Available online 18 June 2007.

This article is not included in your organization's subscription. However, you may be able to access this article under your organization's agreement with Elsevier.
Commercial methanol synthesis catalysts and γ-alumina are stable when used separately in a slurry phase reactor for the methanol synthesis and the methanol dehydration reaction, respectively. However, when they are used as a physical mixture for our slurry-phase synthesis gas-to-DME process, both catalysts deactivate rapidly. Traditional causes of catalyst deactivation, including hydrothermal sintering, leaching, coking, and poisoning, were investigated and subsequently ruled out. Detrimental interaction between the two catalysts was identified as the cause of the rapid, simultaneous deactivation of both catalysts. Intimate solid-state contact between the two catalysts is necessary for this interaction to take place. Most likely, the interaction is due to the migration of Zn-and Cu-containing species from the methanol catalysts to γ-alumina. Although not discussed in this paper, a proprietary dual catalyst system with good stability has been developed.