添加剂对高钠煤热解过程中钠析出的影响  

EFFECT OF ADDITIVE ON EMISSION OF SODIUM IN HIGH-SODIUM COAL DURING PYROLYSIS

作　　者：涂圣康 张守玉[2] 施大钟 金涛[1] 杨靖宁 刘大海[1] 裴育峰[4] 

机构地区：[1]上海理工大学能源与动力工程学院,上海硕士生200093 [2]上海理工大学能源与动力工程学院热能工程研究所,上海博士教授200093 [3]上海机易电站设备有限公司,上海高级工程师200437 [4]中国电力工程顾问集团东北电力设计院,长春博士高级工程师130021

出　　处：《煤炭转化》2016年第1期31-34,共4页Coal Conversion

基　　金：国家科技支撑计划项目(2012BAA04B01)

摘　　要：在箱式电阻炉装置上,进行典型新疆高钠煤五彩湾煤和加入胶体添加剂后混合煤样的热解实验,确定了五彩湾煤中钠在热解过程中的析出规律以及胶体添加剂对其的影响.结果表明,五彩湾煤原煤热解过程中,钠的析出量随着温度的升高而增大,钠的析出主要集中在700℃~900℃.适量添加硅溶胶能有效减少钠的析出,而铝溶胶的添加能促进钠的析出,且钠的析出量随着铝溶胶添加比例的增加而增大.The pyrolysis experiments of the raw coals and the treated coals were conducted in a chamber electric furnace.The emission regularity of the sodium in the raw coals and the treated coals were determined.And the effect of colloid additive on the emission regularity was also determined.The results show that the emission of sodium increases with the increasing temperature.The emission of sodium mainly take place in the temperature range of 700 ℃-900 ℃.Adding appropriate amount of silica sol can decrease the emission of sodium effectively.However,adding aluminum sol can promote the emission of sodium,and the emission of sodium increases with the increasing adding proportion.

关 键 词：五彩湾煤 钠 热解 胶体添加剂 

分 类 号：TQ531.2[化学工程—煤化学工程] TQ047.1