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

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APPEEC.2010.5448442

Filename

5448442