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Title: Hydrogenolysis of glycerol to propanediols over nano-Ru/C catalyst with ionic liquid addition
Authors: Aznira, A.
Hamzah, N.
Yarmo, M. A.
???metadata.dc.contributor.url???: azniraalias@ yahoo. com
Keywords: Nano Ru/C;Hydrogenolysis;Propanediol;Glycerol;Ionic liquid;XRD;International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI)
Issue Date: 9-Jun-2010
Publisher: Universiti Malaysia Perlis
???metadata.dc.publisher.department???: School of Materials Engineering & School of Environmental Engineering
Citation: p.58-62
Series/Report no.: Proceedings of the International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) 2010
Abstract: Supported ruthenium catalyst on nano-activated carbon (2% Ru/C) and titania (2%Ru/TiO2) were prepared by wet impregnation technique with addition of ionic liquid and without ionic liquid (1-decyl-3-methylimidazolium and choline chloride with different Lewis acid). Mole ratio of choline chloride and Lewis acid were fixed at 1:3. Catalysts evaluation was performed by glycerol hydrogenolysis reaction at 100ºC with initial hydrogen pressure 20 bars for 7 hours reaction. The result showed that supported ruthenium catalyst on activated carbon acetylene black with addition of choline chloride/zinc (II) chloride indicated 30.7% of glycerol converted to 20.6% propylene glycol and 11.4% ethylene glycol. Catalysts profile of XRD showed graphitic phase which can reduce catalyst poisoning effect. XPS analysis showed that Ru/CC-ZnCl2/C catalyst spesies was in Ru4+ state before reaction Meanwhile, mapping analysis using FE-SEM showed well dispersion of ruthenium metal on nano-activated carbon acetylene black with addition of choline chloride/zinc (II) chloride gave the highest selectivity to propanediol. Furthermore, smaller size of nano activated carbon (30-60nm) than titania (90-120nm) analyzed by TEM may the main course in increased the conversion of glycerol.
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.
URI: http://hdl.handle.net/123456789/9064
ISBN: 978-967-5760-02-0
Appears in Collections:Conference Papers

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