内蒙胜利褐煤微生物降解工艺条件优化  

Optimization of Technological Conditions for Microorganism Degrading Inner Mongolia Shengli Lignite

作　　者：李建涛[1,2] 刘向荣[1] 黄璐[1] 杨旭东[1] 李婷[1] 

机构地区：[1]西安科技大学化学与化工学院,西安710054 [2]商洛学院化学工程与现代材料学院,陕西商洛726000

出　　处：《煤炭技术》2017年第7期266-268,共3页Coal Technology

基　　金：国家自然科学基金(21373158);陕西科技厅中澳合作项目(2013KW17)

摘　　要：利用黄孢原毛平革菌降解内蒙胜利褐煤,在单因素试验的基础上,设计正交试验优化了黄孢原毛平革菌降解氧化褐煤的工艺条件,红外分析表明煤残渣在氧化煤既有波数处的吸收部分消失或者变弱,又有新吸收峰产生,说明煤中的有机大分子已被黄孢原毛平革菌降解成小分子。滤液甲醇萃取物的GC-MS总离子色谱图证明了降解液中含有丰富的小分子有机物,且大多为脂肪烃、酯、羧酸及芳香族化合物。Phanerochaete chrysosporium was selected to degrade Inner Mongolia Shengli lignite. Based on single factor experiments, the process conditions of Phanerochaete chrysosporium degrading oxidized lignite were optimized by orthogonal experiments. Infrared analysis showed that the absorption of coal residue at the wave number of oxidized coal had been disappeared or weakened, Further analysis indicated that organic macromolecular in coal had been degraded by Phanerochaete chrysosporium into micromolecule. The total ion chromatogram of methyl alcohol extraction product of degradation filtrate demonstrated that it contained abundant small molecule organics, which mostly included aliphatic hydrocarbons, esters, carboxylic acids and aromatic compounds.

关 键 词：褐煤 真菌 微生物降解 正交优化 

分 类 号：TQ536[化学工程—煤化学工程]