Journal
APPLIED CATALYSIS A-GENERAL
Volume 505, Issue -, Pages 217-223Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2015.07.031
Keywords
Levulinic acid; gamma-Valerolactone; Hydrogenation; DRIFTS; Nickel; Titania
Categories
Funding
- RMIT, Australia
Ask authors/readers for more resources
The TiO2 supported Ni catalysts were investigated for vapour phase hydrogenation of aqueous levulinic acid at ambient pressure. Ni/TiO2 demonstrated high selectivity of gamma-valerolactone (GVL) compared to noble metal (Pt, Pd, Ru) catalysts. The surface acid sites played an important role on the product distribution. Pyridine adsorbed DRIFT spectra revealed that the Lewis acid sites on Ni/TiO2 were responsible for high selectivity of gamma-valerolactone. In contrast, the Bronsted acid sites are prone to ring opening of gamma-valerolactone to produce valeric acid and hydrocarbons. The physicochemical characteristics of Ni/TiO2 were correlated with gamma-valerolactone rates. Based on the kinetic study a mechanism has been proposed. (C) 2015 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available