摘要
用云芝对光氧化预处理的神府煤进行了微生物转化研究.结果表明:光氧化预处理神府煤的生物转化反应性有了较大提高.与原煤生物转化率相比,光氧化处理的煤的生物转化率提高了54.5%.生物转化后,残煤中的甲基、亚甲基等脂肪族官能团减少,芳香结构单元的取代度变化较小,表明云芝在煤的生物转化过程中,主要氧化分解煤大分子中的烷基侧链.光氨氧化处理更有利于提高煤生物转化液相产物的形成.
The bioconversion of photo-oxidation pretreatmcnt Shenfu coal by T. versicolor was studied. The results show that the photo-oxidation treatment is effective to improve the bioconversion reactivity of Shenfu coal by T. versicolor. Compared with Shenfu raw coal, the conversion ratio of photo-oxidized Shenfu coal by T. versicolor increase by 54. 5%. After bioconversion, aliphatic groups like methyl and methylene decrease, and the substitution degree of aromatic rings in residual coal changes insignificantly. Alkyl side chains in coal macromolecules are broken down by T. versicolor during the process of bioconversion. Furthermore, the pretreatment of Shenfu coal by ultraviolet light with O2/NH3 facilitates the liquid products formation, comparing with that pretreated by ultraviolet light with pure O2.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2008年第11期1305-1308,共4页
Journal of China Coal Society
基金
国家自然科学基金资助项目(20676110)
关键词
云芝
光氧化预处理
煤
生物转化
T. versicolor
photo-oxidation pretreatment
coal
bioconversion
