文献类型：期刊文献

中文题名：应用溶解度参数理论筛选柴油萃取脱蜡的溶剂

英文题名：Investigation of the selection of extraction solvent for extracting the n-alkane from diesel by means of solubility parameters theory

作者：吕涯[1];施佳佳[1];孙磊[1]

机构：[1]华东理工大学石油加工研究所,上海200237

年份：2008

卷号：36

期号：3

起止页码：297

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;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：溶解度参数;溶剂萃取;柴油;正构烷烃

外文关键词：solubility parameters ; solvent extraction ; diesel; n-alkane

摘要：采用基团贡献法分别计算了酮类、氯代烃类、酯类、醇类和醚类溶剂的色散溶解度参数(δd)、极性溶解度参数(δp)和氢键溶解度参数(hδ),并分析了柴油组分中正构烷烃和芳烃的三维溶解度参数的特点。研究了溶剂溶解度参数与其萃取柴油脱蜡效果的关系。结果表明,除了醇类溶剂之外,在参数贡献图中距离正构烷烃距离越远的溶剂,正构烷烃得率越大,萃取效果越好;色散力贡献比大于2/3的溶剂萃取时蜡膏的含油量明显低于色散力贡献比小于2/3的溶剂。
The solubility parameters （ including dispersion coefficient δd, polarity δp, and hydrogen bonding δh ） of extraction solvents （like ketones, chlorinated hydrocarbon, ester, alcohol, and ether ） and diesel oil components （n-alkanes and aromatics） were estimated by using the group contribution method. The relationship between the solubility parameters of the solvent and the extraction efficiency of n-alkane from diesel oil was investigated. The results illustrated that the larger the difference between the solvent and n-alkane in the solubility parameters is, the higher is the extraction ratio, for the solvents except alcohols. Nonalkane content of waxpaste removed by the solvents with a dispersion contribution （fd） of higher than two-thirds was much less than that by the solvents with a lower fd.