Removal of benzopyrene from coal tar asphalt by chemical method

XUE Yong-bing; HE Min; GAO Cheng-yun; LI Bing-zheng; LIU Zhen-min

Volume 47 Issue 6

Jun. 2019

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Article Navigation > Journal of Fuel Chemistry and Technology > 2019 > 47(6): 668-674

XUE Yong-bing, HE Min, GAO Cheng-yun, LI Bing-zheng, LIU Zhen-min. Removal of benzopyrene from coal tar asphalt by chemical method[J]. Journal of Fuel Chemistry and Technology, 2019, 47(6): 668-674.

Citation:

XUE Yong-bing, HE Min, GAO Cheng-yun, LI Bing-zheng, LIU Zhen-min. Removal of benzopyrene from coal tar asphalt by chemical method[J]. Journal of Fuel Chemistry and Technology, 2019, 47(6): 668-674.

XUE Yong-bing, HE Min, GAO Cheng-yun, LI Bing-zheng, LIU Zhen-min. Removal of benzopyrene from coal tar asphalt by chemical method[J]. Journal of Fuel Chemistry and Technology, 2019, 47(6): 668-674.

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Removal of benzopyrene from coal tar asphalt by chemical method

1.
School of Chemical & Biological Engineering, Taiyuan University of Science & Technology, Taiyuan 030024, China
2.
Research Institute of Highway, Mnistry of Transportation, Beijing 100088, China
3.
School of Environment & Safety, Taiyuan University of Science & Technology, Taiyuan 030024, China

Funds:

the Natural Science Foundation of Shanxi Province, China 201601D102011

the Soft Science Research Program of Shanxi Province 2018041043-1

Science and Technology Innovation Project from Research Institute of Highway Ministry of Transport 2018-E0001

the Youth Science Foundation of Shanxi Province 201601D202016

the Docporal Research Fund of Taiyuan University of Science and Technology 20182022

More Information

Corresponding author: XUE Yong-bing, Tel: 13834583871, 13264039980, E-mail: tykjdxxyb@163.com; HE Min, hemin307@163.com
Received Date: 2018-09-05
Rev Recd Date: 2019-03-23

Available Online: 2021-01-23

Publish Date: 2019-06-10

Abstract

Abstract

For the friendly environmental application of coal tar pitch, the benzoic acid, polyethylene glycol, solid coumarone resin (S) or liquid coumarone resin (L) were selected as a modifier to lower the content of harmful benzopyrene in coal tar pitch by chemical reaction in a tube furnace. The benzopyrene content was detected by an ultraviolet-visible spectrophotometer, and the influence of reaction temperature, reaction time, modifier contents and catalyst types on the benzopyrene content was investigated. The results show that the technical condition has an intimate relationship with the decrease of benzopyrene content owing to the electrophilic substitutive reaction at the existence of acidic catalyst. All modifiers tested have obvious effects on the decrease of benzopyrene content. Under the optimum conditions, the removal rates of benzopyrene by different additives decrease in proper sequence of liquid coumarone resin, polyethylene glycol, benzoic acid and solid coumarone resin. The highest benzopyrene removal rate of 73.0% is obtained by using liquid coumarone resin, showing a promising application prospect.
- coal tar pitch,
- chemical methods,
- harmless modification,
- benzopyrene,
- environment

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References(13)

References

[1]	ZHANG L F, LIU G, WANG Y G, SHEN J, LI R F, DU J K, YANG Z F, XU Q B. Modification of coal tar pitch with P-phthalaldehyde to reduce toxic PAH content[J]. Energy Sources, Part A:Reco, Util Environ Eff, 2016, 38(5):737-743. doi: 10.1080/15567036.2015.1128016
[2]	宋健伟, 李其祥, 王红亮, 王智勇, 伍林.脱除煤沥青中3, 4-苯并芘及其机理研究[J].化学与生物工程, 2014, 31(10):62-65. doi: 10.3969/j.issn.1672-5425.2014.10.016 SONG Jian-wei, LI Qi-xiang, WANG Hong-liang, WANG Zhi-yong, WU Lin. Removal of 3, 4-benzopyren in coal tar pitch and mechanism research[J]. Chem Bioeng, 2014, 31(10):62-65. doi: 10.3969/j.issn.1672-5425.2014.10.016
[3]	OUYOUNG C F, LI X Y, GAO Q, SH X Q. Reducing benzo (a) pyrene content of coal-tar-pitch modified by styrene-butadiene rubber through dynamic vulcanization[C]//Materials Science Forum. Trans Tech Publications, 2013, 743: 292-300.
[4]	黄大军.煤沥青与聚合物反应减少苯并[a]芘的研究[D].大连: 大连理工大学, 2006. http://cdmd.cnki.com.cn/Article/CDMD-10141-2006068299.htm HUANG Da-jun. Reduce of benzo[a]pyrene in coal tar pitch by reacting with polymer[D]. Dalian University of Technology, 2016. http://cdmd.cnki.com.cn/Article/CDMD-10141-2006068299.htm
[5]	孙昱, 廖志远, 苏龙, 曾鹏.溶剂效应对脱除煤沥青中3, 4-苯并芘的影响[J].化工进展, 2014, (8):2211-2214. http://d.old.wanfangdata.com.cn/Periodical/hgjz201408051 SUN Yu, LIAO Zhi-yuan, SU Long, ZENG Peng. Solvent effect on removal of benzo[a]pyrene in coal tar pitch[J]. Chem Ind Eng Prog, 2014, (8):2211-2214. http://d.old.wanfangdata.com.cn/Periodical/hgjz201408051
[6]	廖志远, 孙昱, 苏龙, 曾鹏.聚乙二醇改性脱除煤沥青中3, 4-苯并芘[J].燃料与化工, 2014, 45(4):37-39. doi: 10.3969/j.issn.1001-3709.2014.04.015 LIAO Zhi-yuan, SUN Yu, SU Long, ZENG Peng. Removal of benzo[a]pyrene from coal tar pitch with polyethylene glycol[J]. Fuel Chem Prog, 2014, 45(4):37-39. doi: 10.3969/j.issn.1001-3709.2014.04.015
[7]	张秋民, 黄大军, 赵树昌.用聚合物试剂减少煤沥青中3, 4-苯并芘的研究[J].煤化工, 2007, 35(1):58-60. doi: 10.3969/j.issn.1005-9598.2007.01.017 ZHANG Qing-ming, HUANG Da-jun, ZHAO Shu-chang. Decrease of benzo[a]pyrene in coal tar pitch by polymer[J]. Coal Chem Ind, 2007, 35(1):58-60. doi: 10.3969/j.issn.1005-9598.2007.01.017
[8]	XUE Y B, GE Z F, LI F C, SU S, LI B Z. Modified asphalt properties by blending petroleum asphalt and coal tar pitch[J]. Fuel, 2017, 207:64-70. doi: 10.1016/j.fuel.2017.06.064
[9]	王文超, 牛艳霞, 刘刚, 申峻, 李瑞丰, 杜建奎, 郭宝荣, 杨志峰.煤沥青中多环芳烃的消减抑制研究[J].湖北大学学报:自然科学版, 2015, 37(4):400-406. http://d.old.wanfangdata.com.cn/Periodical/hbdxxb201504020 WANG Wen-chao, NIU Yan-xia, LIU Gang, SHEN Jun, LI Rui-feng, DU Jian-kui, GUO Bao-rong, YANG Zhi-feng. Reducing polycyclic aromatic hydrocarbons content in coal tar pitch[J]. J Hubei Univ:Nat Sci Ed, 2015, 37(4):400-406. http://d.old.wanfangdata.com.cn/Periodical/hbdxxb201504020
[10]	ZIELIŃSKI J, OSOWIECKA B, LISZYŃSKA B, CIESINSKA W, POLACZEK J. Benzo[a]pyrene in coal tar pitch:Chemical conversion in situ by alky lation[J]. Fuel, 1996, 75(13):1543-1548. doi: 10.1016/0016-2361(96)00115-9
[11]	HE D M, GUAN J, WU D, ZHAO S C, ZHANG Q M. Modification of coal tar pitch to reduce the carcinogenic polycyclic aromatic hydrocarbons[C]. Applied Mechanics and Materials. Trans Tech Publications, 2013, 295: 3098-3103.
[12]	KAVSHIK S, RAINA R K, BHATIA G, VERMA G L, KHANDAL R K. Modification of coal tar pitch by chemical method to reduce benzo (a) pyrene[J]. Curr Sci, 2007, 93(25):540-544.
[13]	WANG W, LIU G, SHEN J, CHANG H H, LI R F, DU J K, YANG Z F, XU Q B. Reducing polycyclic aromatic hydrocarbons content in coal tar pitch by potassium permanganate oxidation and solvent extraction[J]. J Environ Chem Eng, 2015, 3(3):1513-1521. doi: 10.1016/j.jece.2015.05.024