聚合物改性法脱除中温煤沥青中的苯并[a]芘效果分析  

Analysis of Detoxification Effect of Benzo[a]pyrene in Polymer Modification of the Medium Temperature Coal-tar Pitch

作　　者：李瑞霞 李佳辉[1,3] 蒋志甫 章亚东 乐金朝[1] LI Ruixia;LI Jiahui;JIANG Zhifu;ZHANG Yadong;YUE Jinzhao(School of Water Conservancy and Transportation,Zhengzhou University,Zhengzhou 450001,China;Henan Provincial Engineer-ing Laboratory of Coal-based Ecological Fine Chemicals,Jiyuan 454650,China;Henan Communications Planning and Design Insti-tute Co.,Ltd.,Zhengzhou 451460,China;School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China;Ji Yuan Research Institute,Zhengzhou University,Jiyuan 454750,China)

机构地区：[1]郑州大学水利与交通学院,河南郑州450001 [2]煤基生态精细化工河南省工程实验室,河南济源454650 [3]河南省交通规划设计研究院股份有限公司,河南郑州451460 [4]郑州大学化工学院,河南郑州450001 [5]郑州大学济源研究院,河南济源454750

出　　处：《郑州大学学报（工学版）》2024年第5期119-127,共9页Journal of Zhengzhou University（Engineering Science）

基　　金：国家自然科学基金资助项目(51708513);煤基生态精细化工河南省工程实验室开放课题(B202001)。

摘　　要：为降低煤沥青中致癌性多环芳烃的含量,实现其绿色化应用,分别采用聚氨酯单体、三聚甲醛、聚乙二醇、二乙烯基苯和环氧树脂中的一种或多种与煤沥青进行反应,以煤沥青中代表性致癌物苯并[a]芘(BaP)的脱除率作为评价指标,分析各单一改性剂及复合改性剂对煤沥青中BaP的影响。结果表明:选取的改性剂均能有效降低煤沥青中BaP的质量分数,单一改性剂脱毒效果从高到低依次为聚氨酯单体、三聚甲醛、聚乙二醇、二乙烯基苯、环氧树脂;复合改性剂的最优试验组合(质量分数)为6%聚氨酯单体+10%三聚甲醛+8%聚乙二醇,其在最佳反应条件下可使BaP的降低率达到82.16%。In order to reduce the content of carcinogenic polycyclic aromatic hydrocarbons in coal asphalt and realize its green application,polyurethane monomer,trioxymethylene,polyethylene glycol,divinyl benzene and epoxy resin were respectively used to react with coal-tar pitch alone or mixed.The removal rate of benzo[a]pyrene(BaP),a representative carcinogen in coal-tar pitch,was used as an evaluation index to analyze the effects of each single modifier and composite modifier on BaP in coal-tar pitch.The results showed that all the selected modifiers could effectively reduce the mass fraction of BaP in coal-tar pitch,the order of detoxification effect of a single modifier in descending was polyurethane monomer,trioxymethylene,polyethylene glycol,divinyl benzene,epoxy resin;the optimal combination(mass fraction)of composite modifiers was 6% polyurethane monomer+10% trioxymethylene+8% polyethylene glycol,which reduction rate of BaP could reach 82.16% with the optimal reaction conditions.

关 键 词：煤沥青 多环芳烃 苯并[A]芘 单一改性剂 复合改性剂 脱除率 

分 类 号：U414[交通运输工程—道路与铁道工程] TQ522.65[化学工程—煤化学工程]