造纸黑液对水煤浆燃烧性能的影响及分析  

Effect of Black Liquor on Combustion Performance of Black Liquor Coal Slurry

作　　者：兰泽全[1] 曹欣玉[2] 刘建忠[2] 程军[2] 周俊虎[2] 岑可法[2] 

机构地区：[1]华北科技学院,河北三河065201 [2]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《中国造纸学报》2008年第3期42-46,共5页Transactions of China Pulp and Paper

基　　金：国家重点基础研究发展规划973计划(2004CB217701;2004CB217701-01);河北省教育厅科研基金资助项目(2005-1)

摘　　要：从微观和宏观分析的角度研究了黑液水煤浆、普通水煤浆和制浆原煤的燃烧特性,以探究造纸黑液对水煤浆燃烧性能的影响及机理。结果表明,与其他两种燃料相比,由于黑液的作用,黑液水煤浆具有着火温度低、燃尽率高、燃尽时间短和污染物排放低的特点,SO2绝大部分被NaOH、Na2CO3吸收固定在灰渣中。X射线衍射和能谱分析结果发现,黑液中的Na是引起黑液水煤浆具有较强沾污结渣倾向的重要因素。In order to investigate the influence of black liquor on combustion characteristic of black liquor coal-slurry, combustion tests of black liquor coal-slurry, coal-water-slurry and the raw coal in thermobalance and 0.25MW experimental furnace were carried out, the combustion performance of three fuels were studied by means of microanalysis and macroanalysis. The results indicated black liquor coal-slurry has advantages of lower ignition temperature, higher bum-out rate, shorter burn-out time, less pollutant emission, and most of sulfur dioxide is absorbed and fixed into residual ash by sodium hydroxide and sodium carbonate compared with the other two fuels. Meanwhile, the results of X-ray diffraction analysis and energy spectrum analysis showed that sodium in black liquor is the key factor causing stronger tendency of fouling and slagging.

关 键 词：黑液 黑液水煤浆 燃烧特性 灰沉积 污染物排放 

分 类 号：X793[环境科学与工程—环境工程]