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OALib Journal期刊
ISSN: 2333-9721
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煤中矿物质对灰熔融和燃烧特性的影响
, PP. 27-33
Keywords: 五彩湾煤,赋存形态,燃烧特性,灰熔融性
Abstract:
？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.
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