Publication:
Effect of ruthenium metal precursor supported on bentonite for hydrogenolysis glycerol
Effect of ruthenium metal precursor supported on bentonite for hydrogenolysis glycerol
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Date
2010-06-09
Authors
Noraini Hamzah
Aznira Alias
Mohamad Kassim
Mohd Ambar Yarmo
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Publisher
Universiti Malaysia Perlis (UniMAP)
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Abstract
Various ruthenium precursor (Ru= RuCl3, Ru2 = Ru(acac)3, Ru3 = Ru3(CO)12) supported on bentonite were prepared by conventional impregnation method. Their catalytic performances were evaluated in the hydrogenolysis of glycerol using autoclave Parr reactor under mild reaction conditions of 150°C, hydrogen pressure 30 bar for 7 hours. Among the studied catalyst, 5% Ru/bentonite catalyst prepared form Ru and Ru3 precursor exhibited higher and similar activity which are (79.6%) and 72.5% respectively. In contrast, Ru2/bentonite prepared from Ru(acac)3 precusor gave lowest activity (41.8%). In term of selectivity to 1,2-propanediol, Ru2 and Ru3 precusor gave higher and similar selectivity ( 67% and 66.9%) compared to Ru precursor (50.6%). These results indicated that metal precursor plays the important role on activity and selectivity of the catalyst. The catalysts were characterized by XRD, XPS, BET, FESEM-EDX and TEM, and the reasons for the high performances of the catalyst were also discussed.
Description
International Conference on X-Rays and Related Techniques in Research and Industry (ICXRI 2010) jointly organized by Universiti Malaysia Perlis (UniMAP) and X-Ray Application Malaysia Society (XAPP), 9th - 10th June 2010 at Aseania Resort Langkawi, Malaysia.
Keywords
Glycerol,
Hydrogenolysis,
Nano-ruthenium,
Propanediol,
Bentonite