文献类型：期刊文献

中文题名：氢键在煤大分子溶胀行为中的作用

英文题名：STUDY ON HYDROGEN BONDING IN SWELLING OF COAL

作者：陈茺[1];许学敏[1];高晋生[1];颜涌捷[1];郭新闻[2]

机构：[1]华东理工大学能源化工系;[2]大连理工大学碳资源综合利用开放实验室

年份：1997

卷号：25

期号：6

起止页码：524

中文期刊名：燃料化学学报

外文期刊名：Journal of Fuel Chemistry and Technology

收录：CSTPCD;;EI(收录号：1998034142516);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家教育委员会博士点基金;大连理工大学碳资源综合利用开放实验室资助

语种：中文

中文关键词：氢键;煤;化学预处理;溶胀率;溶剂抽提

外文关键词：hydrogen bonding, swelling, coal, chemical pretreatment

摘要：选择对氟苯酚（ＰＦＰ）做为煤中羟基的模型化合物，考察了煤与溶剂间氢键强度对煤大分子溶胀行为的影响。发现煤在溶剂中的溶胀率随着ＰＦＰ与溶剂间氢键生成热的增大而增加；煤的溶胀率随煤化程度的提高而降低以及煤经碱、酸处理后溶胀率增加。这些结果表明，煤中羟基与溶剂间的氢键力是决定煤大分子溶胀行为的关键因素。
A key factor determining the swelling of a coal in solvents was investigated Since most hydroxyls in coal are phenol type, pfluorophenol(PFP) can be used as a suitable model compound for coal hydroxyl The swelling ratio of a coal in organic solvents increases with an increase in heat of hydrogen bonding formation between PFP and the corresponding solvents When a lignite was treated by acid and a bituminous coal by alkali/acid, the conversion of carboxylate to carboxyl and the hydrolysis of weak ether bonds occur and result in increase of the hydroxyl content in the coal, which enhances hydrogen bonding strength between the coal and the solvents The evidence shows that the hydrogen bonding between the coal and the solvents is a key factor determining coal swelling behavior in organic solvents