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Application of Co/Al2O3 Catalyst in Steam Reforming of Glycerol

Cheng, C. K. (2010) Application of Co/Al2O3 Catalyst in Steam Reforming of Glycerol. In: CHEMECA 2010, 26 - 29 September 2010 , Hilton Adelaide, South Australia. pp. 1-11..

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Abstract

Alumina-supported cobalt catalyst has been employed in a fixed bed reactor for the direct production of synthesis gas from glycerol steam reforming. Physicochemical properties of the Co/Al2O3 catalyst were determined from N2 physisorption, H2 chemisorption, CO2 and NH3-TPD study as well as X-ray diffraction analysis. Both Lewis and Brönsted acid sites are present on the catalyst surface. The acid:basic site ratio is about 6. Glycerol conversion of between 30 to 65% with relatively large H2:CO ratio (6 to 12) and near-stoichiometric values of H2:CO2 ratio (2 to 2.20) were obtained depending on feed composition (30 to 60wt% glycerol mixture). The glycerol consumption rate appeared to be a weak function of glycerol (0.1) and has 0.4 order with respect to the steam partial pressure. Increased glycerol partial pressure led to high carbon deposition (TOC values of 20 to 24%). However, removal of the deposited carbon was essentially complete following a TPO(air)-TPR(H2) scheme.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Proceeding
Uncontrolled Keywords: Glycerol, catalyst
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Zairi Ibrahim
Date Deposited: 12 Aug 2011 00:55
Last Modified: 11 Jan 2018 03:36
URI: http://umpir.ump.edu.my/id/eprint/1695
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