化学改性去除煤沥青中的多环芳烃

Removal of polycyclic aromatic hydrocarbons in coal tar pitch by chemical conversion

本文中研究聚合物对煤沥青中多环芳烃的脱除效果,着重从聚合物、催化剂添加量,反应时间和温度等因素对多环芳烃脱除率的影响,同时研究采用复合改性剂对煤沥青中多环芳烃的脱除效果.通过红外光谱分析,初步了解聚乙二醇与多环芳烃反应属于O-烷基化反应,三聚甲醛与多环芳烃反应属于C-烷基化反应.

This paper studied the removal effect of polymer on polycyclic aromatic hydrocarbons in coal tar pitch ,focusing from polymer ,catalyst amount ,reaction time and reaction temperature on effect of polycyclic aromatic hydrocarbon removal rate , and discussed the effect of removal of polycyclic aromatic hydrocarbons in coal tar pitch with the mixture of polyethylene glycol and s-Trioxane .Through the analysis of infrared spectrum ,speculated that the polyethylene glycol and PAHs reaction belonged to O-alkylation reaction , s-Trioxane and PAHs reaction belonged to C-alkylation reaction .