TY - JOUR
T1 - Deactivation and regeneration of ruthenium on silica in the liquid-phase hydrogenation of butan-2-one
AU - Manyar, Haresh
AU - Weber, D.
AU - Daly, Helen
AU - Thompson, Jillian
AU - Rooney, David
AU - Gladden, L.F.
AU - Stitt, E.H.
AU - Delgado, J.J.
AU - Bernal, S.
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.
UR - http://www.scopus.com/inward/record.url?scp=67349120336&partnerID=8YFLogxK
U2 - 10.1016/j.jcat.2009.04.013
DO - 10.1016/j.jcat.2009.04.013
M3 - Article
VL - 265
SP - 80
EP - 88
JO - Journal of Catalysis
JF - Journal of Catalysis
SN - 0021-9517
IS - 1
ER -