Support effect over bimetallic ruthenium-promoter catalysts in hydrogenation reactions

Author(s)

Fontana, J. ^[1] ; Vignado, C. ^[1] ; Jordao, E. ^[1] ; Carvalho, W. A. ^[2]

Affiliation

^[1] Univ Estadual Campinas, Fac Chem Engn, Chem Syst Engn Dept, Lab Catalyt Proc Dev, BR-13083970 Campinas, SP - Brazil

^[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil

• Document type: Journal article
• Source: CHEMICAL ENGINEERING JOURNAL; v. 165, n. 1, p. 336-346, NOV 15 2010.
• Web of Science Citations: 14

Abstract

The present work evaluates the influence of RuSn catalyst supported on La(2)O(3) TiO(2) SiO(2) and Nb(2)O(5) in dimethyl adipate (DMA) hydrogenation to obtain 1 6-hexanodiol The catalysts were prepared by impregnation method calcined and reduced at 673 K The reactions were carried out in liquid phase in a Parr high pressure reactor at 528 K and 50 bar The catalysts supported on SiO(2) and Nb(2)O(5) show higher selectivity to chol 59% and 50% and conversion of 57% and 28% respectively indicating that the new active phases formed in the metal-support interface are able to hydrogenate the DMA ester group The presence of positively charged tin species acting as Lewis acid sites could be considered as responsible for the carbonyl activation It is also verified that a synergic effect between promoter and support is extremely important for the formation of 1 6-hexanediol (C) 2010 Elsevier B V All rights reserved (AU)

• FAPESP's process: 06/04142-0 - Hydrogenation of dimethyl adipate at presence of pillared clay based catalysts
• Grantee: Wagner Alves Carvalho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 09/07109-2 - Catalytic hydrogenolysis of glycerol mediated by ruthenium catalysts
• Grantee: Wagner Alves Carvalho
• Support Opportunities: Regular Research Grants