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

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2008,（3）
• 页码范围: 520-522
• 页数: 3页
• 语种: 英文

摘要

Jurassic weak & non-stick coal in Hengshan of North Shaanxi Province waspretreated 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.