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Title: Catalytic glycerol steam reforming for hydrogen production

Hydrogen production from glycerol by steam reforming combine two major advantages: (i) using glycerol as raw material add value to this by product of bio-diesel production which is obtained in large quantities around the world and have a very limited utilization now, and (ii) by implication of water molecules in the reaction the efficiency of hydrogen generation is increased as each mol of glycerol produces 7 mol of H{sub 2}. In this work we present the results obtained in the process of steam reforming of glycerol on Ni/Al{sub 2}O{sub 3}. The catalyst was prepared by wet impregnation method and characterized through different methods: N{sub 2} adsorption-desorption, XRD, TPR. The catalytic study was performed in a stainless steel tubular reactor at atmospheric pressure by varying the reaction conditions: steam/carbon ratio (1-9), gas flow (35 ml/min -133 ml/min), temperature (450-650°C). The gaseous fraction of the reaction products contain: H{sub 2}, CH{sub 4}, CO, CO{sub 2}. The optimum reaction conditions as resulted from this study are: temperature 550°C, Gly:H{sub 2}O ratio 9:1 and Ar flow 133 ml/min. In these conditions the glycerol conversion to gaseous products was 43% and the hydrogen yield was 30%.
Authors:
; ;  [1]
  1. National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj Napoca (Romania)
Publication Date:
OSTI Identifier:
22494494
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1700; Journal Issue: 1; Conference: PIM 2015: 10. international conference on processes in isotopes and molecules, Cluj-Napoca (Romania), 23-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; ALUMINIUM OXIDES; BIODIESEL FUELS; CARBON; CARBON DIOXIDE; CARBON MONOXIDE; CATALYTIC REFORMING; GAS FLOW; GLYCEROL; HYDROGEN; HYDROGEN PRODUCTION; INTERSTITIAL HYDROGEN GENERATION; METHANE; NICKEL; STAINLESS STEELS; STEAM; TEMPERATURE RANGE 0400-1000 K; WATER; X-RAY DIFFRACTION