Biological liquefaction characteristics of Jurassic weak & non-stick coal in Hengshan,North Shaanxi Province  

作　　者：杜美利 陈宏贵 姜素荣 

机构地区：[1]Department of Chemistry and Chemical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China

出　　处：《Journal of Coal Science & Engineering(China)》2008年第3期520-522,共3页煤炭学报（英文版）

基　　金：the National Natural Science Foundation of China(40772103)

摘　　要：Jurassic weak & non-stick coal in Hengshan of North Shaanxi Province was pretreated by the nitric acid.Then,it was biodegraded by Phanerochaete chrysosporium. The biodegradation role of the white-rot fungus for coal is extremely significant.Orthogo- nal test demonstrate that liquefied time,liquefaction temperature and the amount of fun- gus liquids etc.are the main factors affecting the coal biodegradation rate.The best tech- nical condition of the coal biological liquefaction was got.Comparing the coal sample be- fore biodegradation with that after biodegradation,it is found that the ash of the coal resi- due after biodegradation reduces significantly,H and O contents increase,C and N con- tents decrease.The biodegradation change the coal macromolecular structure.Jurassic weak ＆ non-stick coal in Hengshan of North Shaanxi Province was pretreated by the nitric acid. Then, it was biodegraded by Phanerochaete chrysosporium. The biodegradation role of the white-rot fungus for coal is extremely significant. Orthogonal test demonstrate that liquefied time, liquefaction temperature and the amount of fungus liquids etc. are the main factors affecting the coal biodegradation rate. The best technical condition of the coal biological liquefaction was got. Comparing the coal sample before biodegradation with that after biodegradation, it is found that the ash of the coal residue after biodegradation reduces significantly, H and O contents increase, C and N contents decrease. The biodegradation change the coal macromolecular structure.

关 键 词：biological liquefaction JURASSIC weak ＆ non-stick coal orthogonal test biodegradation rate 

分 类 号：TQ529[化学工程—煤化学工程]