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K+、Na+、Ca2+、Mg2+对胜利褐煤平衡复吸水的影响

刘祥春 冯莉 王新华 张曼 史啸峰

刘祥春, 冯莉, 王新华, 张曼, 史啸峰. K+、Na+、Ca2+、Mg2+对胜利褐煤平衡复吸水的影响[J]. 燃料化学学报(中英文), 2014, 42(04): 385-391.
引用本文: 刘祥春, 冯莉, 王新华, 张曼, 史啸峰. K+、Na+、Ca2+、Mg2+对胜利褐煤平衡复吸水的影响[J]. 燃料化学学报(中英文), 2014, 42(04): 385-391.
LIU Xiang-chun, FENG Li, WANG Xin-hua, ZHANG Man, SHI Xiao-feng. Effect of K+, Na+, Ca2+ and Mg2+ on equilibrium adsorption of water content of Shengli lignite[J]. Journal of Fuel Chemistry and Technology, 2014, 42(04): 385-391.
Citation: LIU Xiang-chun, FENG Li, WANG Xin-hua, ZHANG Man, SHI Xiao-feng. Effect of K+, Na+, Ca2+ and Mg2+ on equilibrium adsorption of water content of Shengli lignite[J]. Journal of Fuel Chemistry and Technology, 2014, 42(04): 385-391.

K+、Na+、Ca2+、Mg2+对胜利褐煤平衡复吸水的影响

基金项目: 国家自然科学基金(51274197);国家重点基础研究发展规划(973计划,2012CB214900)。
详细信息
    通讯作者:

    冯莉,Tel:+86 13852488050,E-mail:cumthgfl@163.com。

  • 中图分类号: TQ531.1

Effect of K+, Na+, Ca2+ and Mg2+ on equilibrium adsorption of water content of Shengli lignite

  • 摘要: 以胜利褐煤为研究对象,利用FT-IR等手段,用灰分、不同湿度下的平衡复吸水含量等,系统研究了不同相对湿度下K+、Na+、Ca2+、Mg2+的水合作用对胜利褐煤平衡复吸水含量的影响。结果表明,相同浓度不同类型的金属离子与煤样的交换能力的趋势为Ca2+>Na+> K+>Mg2+。金属离子对胜利褐煤平衡复吸水含量影响力的顺序为Mg2+>Ca2+>Na+≈K+。相对湿度高时,平衡复吸水含量的主要控制因素为游离水分子之间的分子作用力;相对湿度中等时,平衡复吸水含量的主要控制因素为金属水簇与毛细管之间的毛细管作用力;相对湿度低时,平衡复吸水含量的主要控制因素为金属离子的水合作用。
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出版历程
  • 收稿日期:  2013-10-27
  • 修回日期:  2013-12-22
  • 刊出日期:  2014-04-30

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