Deactivation and regeneration of ruthenium on silica in the liquid-phase hydrogenation of butan-2-one

被引：42

作者：

Manyar, Haresh G. ^{[1
]}

Weber, Daniel ^{[2
]}

Daly, Helen ^{[1
]}

Thompson, Jillian M. ^{[1
]}

Rooney, David W. ^{[1
]}

Gladden, Lynn F. ^{[2
]}

Stitt, E. Hugh ^{[3
]}

Jose Delgado, J. ^{[4
]}

Bernal, Serafin ^{[4
]}

Hardacre, Christopher ^{[1
]}

机构：

[1] Queens Univ Belfast, CenTACat, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

[2] Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge CB2 3RA, England

[3] Johnson Matthey Catalysts, Billingham TS23 1LB, Cleveland, England

[4] Univ Cadiz, Fac Ciencias, Dept Ciencia Mat & Ingn Met & Quim Inorgan, E-11510 Cadiz, Spain

来源：

JOURNAL OF CATALYSIS | 2009年 / 265卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

Catalyst deactivation; Butan-2-one; Hydrogenation; Ruthenium; Mixed solvent; Ruthenium hydroxide; CATALYST DEACTIVATION; ALCOHOLS; ADSORPTION; KINETICS; RU/AL2O3; BENZENE; RU/SIO2; SUPPORT; METALS; OXYGEN;

D O I：

10.1016/j.jcat.2009.04.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A Ru/SiO2 catalyst was investigated for the liquid-phase hydrogenation of butan-2-one to butan-2-ol with water as a medium. Although excellent reactivity was observed, a gradual deactivation of the catalyst was found on recycle of the catalyst. The spent catalyst was characterized by using XRD, XPS, TEM, TPR, CO chemisorption, FTIR and ICP analyses. Formation of Ru(OH)(x) surface species is proposed to be the main cause of catalyst deactivation with no significant Ru leaching into the reaction mixture. Following catalyst regeneration, up to 85% of the initial catalytic activity could be recovered successfully. Moreover, adsorption of secondary aliphatic alcohols on the catalyst was found to significantly reduce the formation of Ru(OH)(x) during the reaction, thus protecting the catalyst from deactivation. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：80 / 88

页数：9

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