Title :
Mechanism Study on Bio-Liquefaction of Coal: Bio-Degradation of Lignite Model Compounds
Author :
Shi Kai yi ; Tao, X.X. ; Liu, J.Y. ; Yin Sudong ; Yang Liu ; Xu Ning
Author_Institution :
Sch. of Chem. Eng. & Technol., China Univ. of Min. & Technol., Xuzhou, China
Abstract :
Bio-degradation of lignite is a potential technology of converting solid lignite coal to liquid fuel or high value-added chemicals at ambient conditions. This research studied bio-degradation of lignite model compounds to investigate the mechanisms of lignite bio-degradation. Lignite model compounds of ethyl benzoate and thymol were determined by organic solvent extraction of lignite samples. Bio-degradation results showed that ethyl benzonate can be degraded by Trichoderma sp. AH, C. versicolor and C. velutipes with high degradation percentages of 92.4%, 61.9% and 82.6%, respectively. Another lignite model compound of thymol was also easily degraded by C. velutipes and Bacteria Bl with both degradation percentages higher than 96%.
Keywords :
biodegradable materials; coal; environmental degradation; liquefaction; organic compounds; bio-liquefaction; ethyl benzoate; high value-added chemical; lignite biodegradation; lignite model compound; liquid fuel; organic solvent extraction; solid lignite coal; thymol; Biodegradation; Chemical compounds; Chemical engineering; Chemical technology; Educational institutions; Fuels; Microorganisms; Solids; Solvents; Thermal degradation;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448442
