摘要
阐述了温和条件下煤的溶剂抽提机理 ,煤分子间作用力、溶剂种类对抽提率的影响、抽出物的洁净性能、抽余物的吸附性能、抽提产物表面的物化以及表面活性剂对煤的亲水 /疏水性、ξ电位和氮气吸附性能的影响 .结果表明 ,对于高阶煤 ,加入中性活性剂 Teric G1 2 A8可以有效降低其 ξ电位 ,增大其氮气吸附量和疏水性 .
The mechanism of solvent extraction at mild conditions,the effect of the interaction among the coal motecules and the different kinds of solvent to the extraction yields were expounded.The cleanness of the extracts and the adsorption character of extracts resides and the revision of surface properties through physical-chemistry methods were reviewed.Through adding the surfactants,the changes of the hydrophilicity/hydrophobicity,Zeta potential and the nitrogen adsorption volume of the coal were observed.The experiment results suggested that by adding non-ionic surfactant Teric G12A8,the surface properties could be improved effectively,the adsorption volume of the nitrogen and the hydrophobicity were enhanced.
出处
《煤炭转化》
CAS
CSCD
北大核心
2003年第1期8-11,共4页
Coal Conversion
基金
西南资源开发与环境灾害控制工程教育部重点实验室资助项目 (教技司 [2 0 0 0 ] 170号 )
