Journal
BIORESOURCE TECHNOLOGY
Volume 242, Issue -, Pages 344-350Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.03.045
Keywords
Hydrothermal liquefaction; Sargassum tenerrimum algae; Different solvents; Bio-oil; Bio-residue
Funding
- CSIR-Indian Institute of Petroleum, Dehradun
- CSIR of XII Five Year Plan project [CSC0116/BioEn]
- Ministry of New and Renewable Energy
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The influence of various solvents (H2O, CH3OH, and C2H5OH) on product distribution and nature of products during hydrothermal liquefaction of sargassum tenerrimum algae has been examined. Hydrothermal liquefaction was performed using H2O (260, 280 and 300 degrees C) and organic solvents CH3OH and C2H5OH (280 degrees C) for 15 min. The use of organic solvents significantly increased the yield of bio-oil. In the case of liquefaction with CH3OH and C2H5OH, the bio-oil yield was 22.8 and 23.8 wt.% respectively whereas the bio-oil yield was 16.33 wt.% with H2O. GC-MS analysis of the liquid products indicated the presence of various organic compounds including aromatics, nitrogenated and oxygenated compounds and higher selectivity amount of ester compounds were observed in the presence of alcoholic solvents. NMR and FT-IR showed that present of solvents have an effect on the decomposition of sargassum tenerrimum algae. (C) 2017 Elsevier Ltd. All rights reserved.
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