Liquid phase hydrogenation of methyl levulinate over the mixture of supported ruthenium catalyst and zeolite in water
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- 作者：Jayprakash M. Nadgeri ; Norihito Hiyoshi ; Aritomo Yamaguchi ; Osamu Sato ; Masayuki Shirai
- 关键词：Liquid phase hydrogenation ; Supported ruthenium catalyst ; 纬-Valerolactone ; Graphite support
- 刊名：Applied Catalysis A: General
- 出版年：30 January, 2014
- 年：2014
- 卷：470
- 期：Complete
- 页码：215-220
- 全文大小：2025 K
文摘
Liquid-phase hydrogenation of methyl levulinate was studied over graphite-supported ruthenium (Ru/graphite), zeolite-supported ruthenium, and a mixture of Ru/graphite and zeolites in water at 343 K. The final 纬-valerolactone yield over the mixture of Ru/graphite and ZSM-5 showed the highest activities between Ru/graphite, Ru/ZSM-5, and the mixture of Ru/graphite and several zeolites. Methyl levulinate was hydrogenated to methyl 4-hydroxyvalerate or directly to 纬-valerolactone over supported ruthenium metal sites and methyl 4-hydroxyvalerate was converted to 纬-valerolactone over acid sites. The mixture of Ru/graphite and ZSM-5 contained both highly dispersed ruthenium metal particles and a number of acid sites rather than those over zeolite-supported ruthenium catalysts, which led to the highest 纬-valerolactone yield.