Journal
FUEL
Volume 160, Issue -, Pages 64-70Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2015.07.065
Keywords
Slow pyrolysis; Bio-oil; Bio-char; Heterogeneous catalysis; Wheat straw; Wheat husk
Categories
Funding
- Council of Scientific and Industrial Research (CSIR)
- New Delhi, India
- CSIR [CSC0116/BioEn]
- Ministry of New and Renewable Energy
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Slow pyrolysis of wheat straw and wheat husk has been carried out using microporous zeolite catalysts such as H-ZSM-5, mordenite and Y zeolite. Catalyst testing has been carried out at two positions in the reactor; one where it is mixed with the feed and other, by placing it in a catalyst boat to allow vapour phase contact. The thermal experiments have been carried out at 300, 350, 400 and 450 degrees C and the catalytic experiments have been carried out at 350 degrees C. Bio-oil yields are lower in all cases of catalytic pyrolysis of wheat straw compared to thermal run. With wheat husk, most cases of catalytic pyrolysis produced more bio-oil than thermal run. The bio-oil has been characterised using Gas Chromatography-Mass Spectrometry (GC-MS) and H-1 Nuclear Magnetic Resonance (H-1 NMR) and bio-char using Fourier Transform-Infra Red spectroscopy (FT-IR), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). It has been observed that the pyrolysis product profile and decomposition mechanism is dependent on the method of contact of catalyst. (C) 2015 Elsevier Ltd. All rights reserved.
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