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Citation: CHEN Hui-chao, WU Wei, LIANG Cai. Effect of attapulgite on PM2.5 emission and agglomeration during coal combustion[J]. Journal of Fuel Chemistry and Technology, ;2015, 43(2): 177-184. shu

Effect of attapulgite on PM2.5 emission and agglomeration during coal combustion

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    Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China

  • Corresponding author: CHEN Hui-chao, 
  • Received Date: 15 October 2014
    Available Online: 9 December 2014

    Fund Project: 国家重点基础研究发展规划(973计划, 2013CB228505)。 (973计划, 2013CB228505)

  • Effect of attapulgite on PM2.5 emissions and agglomeration during coal combustion was investigated in a fixed bed system. The effects of addition amount, combustion temperature, mole ratio of calcium to sulfate and combustion atmosphere on mass and number concentration and collection efficiency of PM2.5 were analyzed. The results show that attapulgite added during coal combustion can effectively reduce PM2.5 emissions. The suitable amount of attapulgite is no more than 3%. PM2.5 emission during coal combustion in air is higher than that in O2/CO2 atmosphere. PM1 mass concentration decreases with increasing mole ratio of calcium to sulfate, while PM1~2.5 mass concentration increases, indicating an increasing trend in particle size. Increasing combustion temperature will increase PM2.5 emission and reduce its collection.
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