Journal
BIORESOURCE TECHNOLOGY
Volume 207, Issue -, Pages 126-133Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.01.117
Keywords
Wheat bran; TGA-FTIR; Zeolites; Noble-metals; Hydrocarbons
Funding
- National Research Program of Latvia LATENERGI
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Pyrolysis of wheat bran with or without catalysts was investigated using TGA-FTIR method in order to determine the influence of zeolite and noble metal catalysts on the evolution profile and relative yield of the volatile compounds. The addition of all catalysts decreased the volatile matter of wheat bran from 76.3% to 75.9%, 73.9%, 73.5%, 69.7% and increased the solid residue from 18.0% to 18.4%, 20.4%, 20.8%, 24.6% under the catalyst of ZSM-5, 5% Pd/C, MCM-41, and 5% Pt/C. Noble-metal catalysts had higher activity for deoxygenation of compounds containing carbonyl, carboxyl, and hydroxyl groups than zeolites. Degradation of nitrogen containing compounds atom proceeded better in presence of zeolites. Noble-metal catalysts promoted formation of aromatics and changed the profiles of evolved compounds whereas zeolites advanced formation of aliphatics and olefins. (C) 2016 Elsevier Ltd. All rights reserved.
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