摘要
在管式炉反应器上对丙酸钙高温条件下脱硫脱硝效果进行了试验研究。试验结果表明,煤中添加丙酸钙燃烧,硫、氮析出速率明显降低,SO2、NO排放量显著减少,1000℃、按钙硫比为2的量向聊城贫煤中添加丙酸钙,单位质量煤粉SO2、NO排放量分别减少了64.66%和48.69%;脱硫脱硝效果受燃烧温度、煤的含硫量、钙硫比的影响;低温有利于脱硫,高温有利于脱硝;在相同钙硫比添加量下,煤种含硫量越高,丙酸钙脱硫脱硝效果越好;增大钙硫比可提高脱硫脱硝率,按钙硫比为2可以获得较为理想的脱硫脱硝率,继续添加丙酸钙,脱除效率提高不明显。
The desulfurization and denitrification characteristics of calcium propionate were investigated on the tube furnace reactor. The results show that velocity of SO2 and NO release decreases for addition of calcium propionate. Efficiencies of sulfur and nitrogen reduction are 64. 66% and 48. 69% when calcium propionate is used in the calcium/ sulfur ratio being 2,1 000 ℃ combustion conditions. Furnace temperature,sulfur content,calcium/sulfur ratio are important factors as for removing SO2 and NO. Low temperature is conducive to desulfurization while high temperature is conducive to denitrification. Either increasing coal＇s sulfur content or calcium/sulfur ratio can raise the desulfurization and denitrification efficiencies. Perfect efficiencies can be reached as calcium/sulfur ratio being two and augmentation degree is inapparent with more calcium propionate addition.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2010年第5期835-839,共5页
Journal of China Coal Society
基金
中国博士后科学基金资助项目(20080431172)
山东省自然科学基金资助项目(ZR2009FM001
ZR2009FQ016)
山东省博士后创新基金资助项目(200802027)
山东省科技厅科技攻关项目(2007GG20006013)
关键词
丙酸钙
脱硫
脱硝
SO2
NO
calcium propionate
desulfurization
denitrification
SO2
NO
