Study on the Relation between Coal Surface Wettability and Coal Petrographical Composition

摘要：

The advancing and receding contact angles are used to assess coal surface wettability, the contact angle forms at the coal-water-gas junction. According to coal petrology, coal is composed of mineral matters and maceral. The advancing and receding contact angles measurement on the coal surface indicats the different surface characteristics of the coal with different petrographical composition. The content of mineral matters in coal have some influence on the wettability of coal. the more the mineral matters in coal, the easier to be wetted for coal. The advancing and receding contact angles increas as vitrinite content increases generally. From vitrinite, semivitrinite, semiinertinite to inertinite , the hydrophobicity of maceral decreases in their order.

关键词： coal surface wettability advancing and receding contact angle coal petrographic composition maceral

作者: SUN Qiang

作者单位: School of Resource and Safety Engineering , China University of Mining and Technology ( Beijing ), Beijing 100083, China

会议类型: 国际会议

会议名称: The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)

会议地点: 河南焦作

会议语种:英文

页码: 306-311

在线出版日期: 2007-04-17（万方平台首次上网日期，不代表论文的发表时间）