中高硫煤制备脱硫型水煤浆的试验研究  

Experimental study on desulphurizing coal water slurry prepared with middle and high sulfur coals

作　　者：黄波[1] 朱书全[1] 吴晓华[1] 刘丽俭[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《煤炭学报》2007年第1期73-76,共4页Journal of China Coal Society

基　　金：北京市教育委员会共建项目建设计划资助;北京市教育委员会共建经费研究生教育项目资助

摘　　要：进行了不同含硫量煤制备脱硫型水煤浆燃烧固硫的试验研究。结果表明：在相同Ca／S值下，水煤浆燃烧固硫率比煤粉高9％左右，Ca（OH）2的固硫能力比CaCO3高，钙基固硫剂复配的固硫效果比单一使用某一类固硫剂要好．制备脱硫型水煤浆时添加少量固硫助剂可以提高水煤浆的固硫率，碱金属盐用量为固硫剂1％时，固硫率提高6％-9％．Al2O3，Fe2O3和TiO2对水煤浆燃烧固硫有明显的促进和协同作用，水煤浆固硫率提高约11％．Sulfur-fixing combustion experiments of coal water slurry with different sulfur contents were done and the results show that the sulfur-fixing rate of coal water slurry combustion is 9% higher than that of pulverized coal, sulfur-fixing capability of Ca（OH）2 is higher than CaCO3, formulated fixing agents based on Ca is prior to single component. Sulfur-fixing aids in coal water slurry help to increase the fixing-rate. The rate could be increased to 6% -9% when the mixture contains 1% of alkali metal ions. Al2O3, Fe2O3 and TiO2 could improve sulfur-fixing rate to about 11% for its cooperative affects.

关 键 词：中高硫煤 脱硫 水煤浆 固硫率 

分 类 号：TQ534.4[化学工程—煤化学工程]