Transformation of trace metals Cu and Pb during high temperature flue gas pyrolysis of waste tires

doi:10.16085/j.issn.1000-6613.2023-0450

Abstract

Abstract:

Waste tires (WT), as a common solid waste, can cause great pollution to the environment if it is disposed unreasonably. In this paper, coal-fired high-temperature flue gas for pyrolysis of WT was used, focusing on the release characteristics of heavy metals Cu and Pb during the pyrolysis process, and the control effects of different metal oxides (CaO, MgO, Al₂O₃, Fe₂O₃) on two heavy metals. In addition, the effect of adding PVC on the migration release of two heavy metals was also investigated. The results showed that when the pyrolysis time was 10min, the two elements had been basically released completely. The enrichment of Cu was promoted at high temperature, while the release of Cu was promoted at low temperature. Metal oxides had a controlling role in the release of two elements. MgO promoted the enrichment of Cu, while Al₂O₃ promoted the enrichment of Pb. When WT with added polyvinyl chloride (PVC) was pyrolyzed, the enrichment of Cu was promoted at low temperature while the release of Cu was promoted at high temperature. However, regardless of the temperature, the addition of PVC resulted in almost complete release of Pb. Furthermore, Fe₂O₃ inhibited the release of both heavy metals.

Key words: waste tires, pyrolysis, flue gas, copper, lead

摘要：

废轮胎（WT）作为一种常见固废，不合理的处置会对环境造成较大污染。本文采用燃煤高温烟气对WT进行热解，重点研究了热解过程中重金属Cu和Pb的释放特性，以及不同金属氧化物（CaO、MgO、Al₂O₃、Fe₂O₃）对两种重金属的控制效果，此外还研究了添加聚氯乙烯（PVC）对两种重金属迁移释放的影响。结果表明，当热解时间为10min时，两种元素已经基本释放完全。高温促进了Cu的富集，而低温反而促进了Cu的释放。对Pb元素而言，随着温度的升高，其释放量不断增加，展现出明显的线性规律。当WT添加金属氧化物热解时，MgO促进了Cu的富集，而Al₂O₃促进了Pb的富集。当WT添加PVC热解时，低温促进了Cu的富集，而高温促进了Cu的释放。但不论温度的高低，PVC的添加使得Pb几乎完全释放。此时，添加Fe₂O₃对两种重金属的释放均起到了抑制作用。

关键词: 废轮胎, 热解, 高温烟气, 铜, 铅

CLC Number:

X705

ZHANG Xin, TANG Jiyun, CHEN Juan, SONG Zhanlong, DONG Yong, YAO Hong. Transformation of trace metals Cu and Pb during high temperature flue gas pyrolysis of waste tires[J]. Chemical Industry and Engineering Progress, 2024, 43(3): 1606-1613.

张鑫, 汤吉昀, 陈娟, 宋占龙, 董勇, 姚洪. 高温烟气热解废轮胎过程中痕量金属Cu、Pb的迁移特性分析[J]. 化工进展, 2024, 43(3): 1606-1613.

Figures/Tables 16

References 24

1	张弘. 2022年我国机动车保有量达 4.17亿辆[N]. 人民公安报·交通安全周刊, 2023-01-13(1).
	ZHANG Hong. China’s motor vehicle fleet reaches 417 million in 2022[N]. China People Daily Traffic Safety Weekly, 2023-01-13(1).
2	MENG Xianhao, YANG Jianxin, DING Ning, et al. Identification of the potential environmental loads of waste tire treatment in China from the life cycle perspective[J]. Resources, Conservation and Recycling, 2023, 193: 106938.
3	SALEH Tawfik A, GUPTA Vinod Kumar. Processing methods, characteristics and adsorption behavior of tire derived carbons: A review[J]. Advances in Colloid and Interface Science, 2014, 211: 93-101.
4	蒋智慧, 刘洋, 宋永猛, 等. 废旧轮胎热解及热解产物研究展望[J]. 化工进展, 2021, 40(1): 515-525.
	JIANG Zhihui, LIU Yang, SONG Yongmeng, et al. Review of pyrolysis for waste tires and research prospects of pyrolysis products[J]. Chemical Industry and Engineering Progress, 2021, 40(1): 515-525.
5	KATARZYNA Januszewicz, PAWEL Kazimierski, WOJCIECH Kosakowski, et al. Waste tyres pyrolysis for obtaining limonene[J]. Materials, 2020, 13(6): 1359.
6	HWANG Jae Gyu, LEE Byeong Kyu, CHOI Myung Kyu, et al. Optimal production of waste tire pyrolysis oil and recovery of high value-added D-limonene in a conical spouted bed reactor[J]. Energy, 2023, 262: 125519.
7	ZHANG Yulin, JI Guozhao, ULLAH Fahim, et al. Polyoxometalate catalyzed oxidative desulfurization of diesel range distillates from waste tire pyrolysis oil[J]. Journal of Cleaner Production, 2023, 389: 136038.
8	GAO Ningbo, WANG Fengchao, QUAN Cui, et al. Tire pyrolysis char: Processes, properties, upgrading and applications[J]. Progress in Energy and Combustion Science, 2022, 93: 101022.
9	JI Jiujiang, CHEN Guo, ZHAO Jun, et al. Efficient removal of Pb(Ⅱ) by inexpensive magnetic adsorbents prepared from one-pot pyrolysis of waste tyres involved magnetic nanoparticles[J]. Fuel, 2020, 282: 118715.
10	张莹, 张亚军. 我国煤电高质量发展的思考[J]. 煤炭经济研究, 2022, 42(2): 53-57.
	ZHANG Ying, ZHANG Yajun. Reflections on the high-quality development of China’s coal power[J]. Coal Economic Research, 2022, 42(2): 53-57.
11	杨萃. 碳达峰和碳中和对火电企业的影响及对策研究[J]. 投资与创业, 2020, 31(23): 147-149.
	YANG Cui. Influence of peak carbon dioxide emissions and carbon neutralization on thermal power enterprises and countermeasures[J]. Investment and Entrepreneurship, 2020, 31(23): 147-149.
12	ZHANG Xin, TANG Jiyun, CHEN Juan, et al. Migration and transformation of sulfur and zinc during high-temperature flue gas pyrolysis of waste tires[J]. Journal of Cleaner Production, 2023, 401: 137238.
13	ZHANG Guohao, CHEN Feng, ZHANG Yuhao, et al. Properties and utilization of waste tire pyrolysis oil: A mini review[J]. Fuel Processing Technology, 2021, 211: 106582.
14	ARABIOURRUTIA Miriam, LOPEZ Gartzen, ARTETXE Maite, et al. Waste tyre valorization by catalytic pyrolysis—A review[J]. Renewable and Sustainable Energy Reviews, 2020, 129: 109932.
15	ZHANG Xin, TANG Jiyun, CHEN Juan. Behavior of sulfur during pyrolysis of waste tires: A critical review[J]. Journal of the Energy Institute, 2022, 102: 302-314.
16	CHEN Guanyi, FAROOQ Muhammad Zohaib, SUN Bingyan, et al. Pollutants formation, distribution, and reaction mechanism during WT pyrolysis: A review[J]. Journal of Analytical and Applied Pyrolysis, 2021, 157: 105218.
17	AL-RAHBI Amal S, WILLIAMS Paul T. Production of activated carbons from waste tyres for low temperature NO _x control[J]. Waste Management, 2016, 49(3): 188-195.
18	WILLIAMS P T, BOTTRILL R P, CUNLIFFE A M. Combustion of tyre pyrolysis oil[J]. Process Safety and Environmental Protection, 1998, 76(4): 291-301.
19	CHENG Zhanjun, LI Miao, LI Jiantao, et al. Transformation of nitrogen, sulfur and chlorine during waste tire pyrolysis[J]. Journal of Analytical and Applied Pyrolysis, 2021, 153: 104987.
20	CHEN Guanyi, SUN Bingyan, LI Jiantao, et al. Products distribution and pollutants releasing characteristics during pyrolysis of waste tires under different thermal process[J]. Journal of Hazardous Materials, 2022, 424(Pt A): 127351.
21	孙进. 重金属铜、镍、锌在生活垃圾焚烧过程中的迁移和转化特性研究[D]. 北京: 北京交通大学, 2015.
	SUN Jin. Partitioning and speciation transformation of heavy metals Cu, Ni, and Zn during municipal solid waste incineration[D].Beijing: Beijing Jiaotong University, 2015.
22	QIN Linbo, XU Zhe, ZHAO Bo, et al. Kinetic study on high-temperature gasification of medical plastic waste coupled with hydrogen-rich syngas production catalyzed by steel-converter ash[J]. Journal of the Energy Institute, 2022, 102: 14-21.
23	LI Dan, LEI Shijun, RAJPUT Gulzeb, et al. Study on the co-pyrolysis of waste tires and plastics[J]. Energy, 2021, 226: 120381.
24	JAMBECK, Jenna R, GEYER Roland, WILCOX Chris, et al. Plastic waste inputs from land into the ocean[J]. Science, 2015, 347(6223): 768-771.

元素分析质量分数（干燥基）/%						工业分析质量分数（空干基）/%
C	H	N	S	O^①		M	A	V	FC
72.74	6.54	0.79	1.39	0.63		0.54	17.81	58.94	22.71

元素分析质量分数（干燥基）/%						工业分析质量分数（空干基）/%
C	H	N	S	O^①		M	A	V	FC
72.74	6.54	0.79	1.39	0.63		0.54	17.81	58.94	22.71

组分	质量分数/%
CaO	31.65
SiO₂	18.21
SO₃	18.55
ZnO	17.57
Al₂O₃	3.96
Fe₂O₃	2.41
P₂O₅	1.5
CuO	0.25
PbO	0.04
其他	5.86

组分	质量分数/%
CaO	31.65
SiO₂	18.21
SO₃	18.55
ZnO	17.57
Al₂O₃	3.96
Fe₂O₃	2.41
P₂O₅	1.5
CuO	0.25
PbO	0.04
其他	5.86

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