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Analysis of Detoxification Effect of Benzo[ a] pyrene in the Medium Temperature Coal-tar Pitch from Polymer Modification Method
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[1]LI Ruixia,LI Jiahui,JIANG Zhifu,et al.Analysis of Detoxification Effect of Benzo[ a] pyrene in the Medium Temperature Coal-tar Pitch from Polymer Modification Method[J].Journal of Zhengzhou University (Engineering Science),2024,45(pre):2-.[doi:10.13705/j.issn.1671-6833.2024.05.008]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 45 Number of periods: 2024 pre Page number: 2- Column: Public date: 2024-12-31
Title:
Analysis of Detoxification Effect of Benzo[ a] pyrene in the Medium Temperature Coal-tar Pitch from Polymer Modification Method
Author(s):
LI Ruixia; LI Jiahui; JIANG Zhifu; ZHANG Yadong; YUE Jinzhao
1. School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, Henan, China; 2. Henan Provincial Engineering Laboratory of Coal-based Ecological Fine Chemicals, Jiyuan 454650, Henan, China; 3. Henan Communications Planningand Design Institute Co. ,Ltd. , Zhengzhou 451460, Henan, China; 4. School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001;5. Ji Yuan Research Institute, Zhengzhou University, Jiyuan 454750, China
Keywords:
Coal tar pitch;  Polycyclic aromatic hydrocarbons;  Benzo [a] pyrene;  Single modifier;  Composite modifier;  Removal rate
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2024.05.008
Abstract:
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 can effectively reduce the content of BaP in coal-tar pitch, the order of detoxification effect of a single modifier in descending is polyurethane monomer>trioxymethylene>polyethylene glycol>divinyl benzene>epoxy resin; the optimal combination of composite modifiers is 6% polyurethane monomer+ 10% trioxymethylene+ 8% polyethylene glycol, which removal rate of BaP can reach 82. 16% under the optimal reaction conditions.
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Last Update: 2024-05-27
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