低温加压热解脱氧对胜利褐煤亲水性的影响

黄鑫 张书 林雄超 王永刚 徐敏

引用本文: 黄鑫, 张书, 林雄超, 王永刚, 徐敏. 低温加压热解脱氧对胜利褐煤亲水性的影响[J]. 燃料化学学报, 2013, 41(12): 1409-1414. shu
Citation:  HUANG Xin, ZHANG Shu, LIN Xiong-chao, WANG Yong-gang, XU Min. Deoxygenation effect on hydrophilicity changes of Shengli lignite during pressurized pyrolysis at low temperature[J]. Journal of Fuel Chemistry and Technology, 2013, 41(12): 1409-1414. shu

低温加压热解脱氧对胜利褐煤亲水性的影响

    通讯作者: 王永刚(1960- ),男,教授,主要研究方向为煤化学及煤的转化利用,Tel:010-62339882,E-mail:wyg1960@126.com;张书,Tel:010-62331048,E-mail:zhangshuwo@hotmail.com。; 王永刚(1960- ),男,教授,主要研究方向为煤化学及煤的转化利用,Tel:010-62339882,E-mail:wyg1960@126.com;张书,Tel:010-62331048,E-mail:zhangshuwo@hotmail.com。
  • 基金项目:

    国家自然科学基金(21076222)。 

摘要: 在固定床反应器中考察了低温(200~350 ℃)、加压(0.25~8.00 MPa)热解条件下胜利褐煤主要含氧官能团的变化规律,并进一步分析了褐煤中含氧官能团的脱除对其吸水能力的影响。结果表明,温度升高对胜利褐煤中羧基和酚羟基的脱除非常有效,压力变化对羧基脱除影响极小,而在3.00~4.00 MPa时对酚羟基脱除效果最佳;同时羧基对煤样的表面极性和亲水性具有决定性作用,当羧基含量不变时,固体比表面积对煤样的吸水性影响相对较明显。

English

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  • 收稿日期:  2013-05-14
  • 网络出版日期:  2013-09-12
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