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

Haresh G. Manyar; Daniel Weber; Helen Daly; Jillian M. Thompson; David W. Rooney; Lynn F. Gladden; E. Hugh Stitt; J. Jose Delgado; Serafin Bernal; Christopher Hardacre

doi:10.1016/j.jcat.2009.04.013

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

Haresh G. Manyar
, Daniel Weber
, Helen Daly
, Jillian M. Thompson
, David W. Rooney
, Lynn F. Gladden
, E. Hugh Stitt
, J. Jose Delgado
, Serafin Bernal
, Christopher Hardacre^*

^*Corresponding author for this work

Queen's University Belfast
University of Cambridge
Johnson Matthey Catalysts
Universidad de Cadiz

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	80-88
Number of pages	9
Journal	Journal of Catalysis
Volume	265
Issue number	1
DOIs	https://doi.org/10.1016/j.jcat.2009.04.013
Publication status	Published - 1 Jul 2009

Keywords

Butan-2-one
Catalyst deactivation
Hydrogenation
Mixed solvent
Ruthenium
Ruthenium hydroxide

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10.1016/j.jcat.2009.04.013

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@article{fc1cded91e054fcf8520f08524067ae2,

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

abstract = "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.",

keywords = "Butan-2-one, Catalyst deactivation, Hydrogenation, Mixed solvent, Ruthenium, Ruthenium hydroxide",

author = "Manyar, \{Haresh G.\} and Daniel Weber and Helen Daly and Thompson, \{Jillian M.\} and Rooney, \{David W.\} and Gladden, \{Lynn F.\} and \{Hugh Stitt\}, E. and \{Jose Delgado\}, J. and Serafin Bernal and Christopher Hardacre",

year = "2009",

month = jul,

day = "1",

doi = "10.1016/j.jcat.2009.04.013",

language = "English",

volume = "265",

pages = "80--88",

journal = "Journal of Catalysis",

issn = "0021-9517",

publisher = "Elsevier BV",

number = "1",

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TY - JOUR

T1 - Deactivation and regeneration of ruthenium on silica in the liquid-phase hydrogenation of butan-2-one

AU - Manyar, Haresh G.

AU - Weber, Daniel

AU - Daly, Helen

AU - Thompson, Jillian M.

AU - Rooney, David W.

AU - Gladden, Lynn F.

AU - Hugh Stitt, E.

AU - Jose Delgado, J.

AU - Bernal, Serafin

AU - Hardacre, Christopher

PY - 2009/7/1

Y1 - 2009/7/1

N2 - 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.

AB - 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.

KW - Butan-2-one

KW - Catalyst deactivation

KW - Hydrogenation

KW - Mixed solvent

KW - Ruthenium

KW - Ruthenium hydroxide

UR - https://www.scopus.com/pages/publications/67349120336

U2 - 10.1016/j.jcat.2009.04.013

DO - 10.1016/j.jcat.2009.04.013

M3 - Article

AN - SCOPUS:67349120336

SN - 0021-9517

VL - 265

SP - 80

EP - 88

JO - Journal of Catalysis

JF - Journal of Catalysis

IS - 1

ER -

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

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Keywords

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