Journal
FUEL
Volume 161, Issue -, Pages 345-354Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2015.08.030
Keywords
T. suecica; Catalytic pyrolysis; Bio-oil; Thermogravimetric analysis; Synchrotron IR
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In this study, the direct and catalytic pyrolysis of microalgae Tetraselmis suecica was conducted to determine the composition of bio-oil obtained. Thermogravimetric analysis showed that at high heating rate, the decomposition temperature and volatile matter evolution increased. Direct pyrolysis results identified the optimum temperature for bio-oil production to be 400 degrees C. The bio-oil produced from catalytic pyrolysis showed a decrease in the oxygenated compounds which indicate that the addition of zeolite catalyst (Si/Al = 30, 60) can improve the bio-oil composition. However, zeolite catalyst (Si/Al = 30) showed a higher decrease in the oxygenated compounds compared to (Si/Al = 60). Furthermore, this study found that some functional groups are still present in the char of T. suecica biomass at 550 degrees C (5 degrees C/min heating rate), while most already disappeared at 350 degrees C (150 degrees C/min heating rate) when using in situ Synchrotron-based Infrared Microscopy. (C) 2015 Elsevier Ltd. All rights reserved.
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