微波辅助白腐真菌煤炭脱硫试验研究  

Experimental study on microwave-assisted white rot fungus desulfurization of coal

作　　者：叶云辉[1] 王向东[1,2] 蒋文举[1,2] 田哲[1] 王丽丽[1] 周灵[1] 

机构地区：[1]四川大学建筑与环境学院,成都610065 [2]国家烟气脱硫工程技术研究中心,成都610065

出　　处：《环境工程学报》2009年第7期1303-1306,共4页Chinese Journal of Environmental Engineering

摘　　要：将微波技术与生物技术相结合用于煤炭脱硫,采用微波功率1000 W、辐照时间80 s对煤样进行辐照处理后,考察了初始pH值、煤粉粒径和煤浆浓度对微波辅助白腐真菌脱硫效果的影响,以及脱硫过程中硫化物的转化规律。研究结果表明,微波辐照作用能够缩短脱硫周期,提高有机硫的脱除率。在初始pH值为4.5,煤粉粒径为80～120目,煤浆浓度为10%,浸出时间为3 d的条件下,煤中的全硫、无机硫和有机硫脱除率分别达到52.06%、51.61%和54.22%。Microwave technology combined with biotechnology was used in biodesulfurization of coal, the effects of treating conditions,including the initial pH, coal partical size and coal slurry concentration were studied after coal was treated under microwave irradiation power 1 000 W and treatment time 80 s, the transformation law of sulfide was also studied. The results indicated that microwave irradiation can shorten the desulfurization cycle and increase organic sulfur removal. It was concluded that, the optimized experiment conditions were initial pH 4.5, coal partical size 80 - 120 meshes, coal slurry concentration 10%. Under these conditions and after threeday leaching the total, inorganic and organic sulfur removal rate reached 52.06% , 51.61% and 54.22% ,respectively.

关 键 词：微波辐照 白腐真菌 煤炭脱硫 

分 类 号：X172[环境科学与工程—环境科学] X701.3