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Glycerol‐Reforming Kinetics Using a Pt/C Catalyst
Author(s) -
Sutar P. N.,
Vaidya P. D.,
Rodrigues A. E.
Publication year - 2010
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201000055
Subject(s) - glycerol , catalysis , chemistry , steam reforming , yield (engineering) , space velocity , biodiesel , kinetics , hydrogen , biodiesel production , order of reaction , hydrogen production , reaction rate constant , thermodynamics , chemical engineering , nuclear chemistry , analytical chemistry (journal) , organic chemistry , physics , selectivity , quantum mechanics , engineering
Catalytic steam reforming of glycerol, a by‐product in biodiesel production, represents an attractive route to hydrogen. For the first time, the kinetics of the glycerol steam reforming reaction over a Pt/C catalyst was considered. Kinetic data, i.e., glycerol conversion vs. space time, were obtained experimentally by using a fixed‐bed reactor and were analyzed by the integral method of analysis. It was found that in the studied ranges of temperature from 623 to 673 K and space time from 0.39 to 1.56 g h/mol the investigated reaction is of the first‐order with respect to glycerol. The specific reaction rate constant at 673 K was determined to be 1.1·10 5 cm 3 /g cat h. The values of glycerol conversion predicted by the first‐order kinetic model were in good agreement with those obtained experimentally. The increase in temperature, space time, and initial water/glycerol ratio caused the expected increase in hydrogen yield.