煤中矿物质对灰熔融和燃烧特性的影响

陈凡敏 王嘉瑞 赵冰 李小江 覃涛

引用本文: 陈凡敏, 王嘉瑞, 赵冰, 李小江, 覃涛. 煤中矿物质对灰熔融和燃烧特性的影响[J]. 燃料化学学报, 2015, 43(1): 27-33. shu
Citation:  CHEN Fan-min, WANG Jia-rui, ZHAO Bing, LI Xiao-jiang, QIN Tao. Effect of mineral form in coal on combustion characteristics and fusibility of coal ash[J]. Journal of Fuel Chemistry and Technology, 2015, 43(1): 27-33. shu

煤中矿物质对灰熔融和燃烧特性的影响

    通讯作者: 王嘉瑞,E-mail:jiarui-wang@chder.com,Tel:0571-85246729.
  • 基金项目:

    国家科技部国际科技合作项目(2013DFG61490) (2013DFG61490)

    浙江省钱江人才项目(2013R10080). (2013R10080)

摘要: 采用化学分步萃取、XRD和SEM-EDS、煤灰灰成分分析等测试方法对五彩湾煤中矿物质的赋存形态进行了研究,并对逐级萃取前后煤样的燃烧特性和灰熔融特性进行了分析和比较.结果表明,五彩湾煤中原始矿物质主要有方解石、硫酸钙、高岭石、石英、黄铁矿等;煤中钠含量很高,主要以水合离子的形态溶于煤的内水中;有机形态的钠、镁和钙提高了煤的燃烧特性;五彩湾煤的煤灰熔融性主要受铁钙物质的量比(F2O3/CaO)影响,灰熔融特性温度随铁钙物质的量比(F2O3/CaO)的增大而降低.

English

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  • 收稿日期:  2014-07-31
  • 网络出版日期:  2014-10-17
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