抚顺褐煤的微生物溶煤  

Bio-solubilization of Fushun Lignite

作　　者：石开仪[1] 陶秀祥[1] 尹苏东[1] 尹文萱[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116

出　　处：《中国矿业大学学报》2007年第3期339-342,共4页Journal of China University of Mining & Technology

基　　金：国家自然科学基金项目(50374068);煤炭加工与高效洁净利用教育部重点实验室开放基金项目(CPEUKF06-12);中国矿业大学科技基金项目(E200407)

摘　　要：利用5种溶煤菌种对抚顺褐煤进行了溶煤的匹配性比较研究,发现AH菌对抚顺褐煤的溶煤效果最明显.其溶煤产物最大紫外吸收峰在240 nm左右;红外分析表明产物中有羟基(3 300 cm-1)和亚甲基(2 970 cm-1)官能团,芳香族官能团(1 600,1 580,1 450 cm-1)已经被降解.在溶煤出现前后2个不同的时期,通过研究pH及蛋白质含量对溶煤效果的影响,发现第1个溶煤时期(3-9 d)主要为酸溶解,第2个溶煤时期(15-21 d)主要为生物酶溶解.羧基与AH菌的相互作用比较明显.Based on a study of matching performance of bio-solubilization using five solubilization fungi for Fushun lignite, it was found that Fungus AH had the greatest bio-solubil＇ization ratio. The special absorbance wavelength of solubilized lignite is at 240 nm. The analysis resuits using an infrared scan show that the solubilized lignite contained both hydroxide（3 300 cm^-1）and ethylene（2 970 cm^-1）, the aromatic functional groups of lignite（1 600, 1 580, 1 450 cm^-1 ）had been degraded. The effects of pH and the protein content on solubilization were also investigated. Results show that the Bio-solubilization occurred in two separate phases. The first phase （3～9^thd） is mainly an acid solubilization, the second phase （15～21^thd） is mainly an enzyme solubilization, in which the carboxyl groups interact directly with Fungus AH.

关 键 词：生物溶煤 褐煤 微生物 

分 类 号：TQ460.38[化学工程—制药化工] TQ529.2