[1]张波,仲兆平.废轮胎热解炭吸附脱汞实验研究[J].东南大学学报(自然科学版),2017,47(3):521-527.[doi:10.3969/j.issn.1001-0505.2017.03.018]
 Zhang Bo,Zhong Zhaoping.Research on mercury adsorption by pyrolytic char of waste tires[J].Journal of Southeast University (Natural Science Edition),2017,47(3):521-527.[doi:10.3969/j.issn.1001-0505.2017.03.018]
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废轮胎热解炭吸附脱汞实验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
47
期数:
2017年第3期
页码:
521-527
栏目:
环境科学与工程
出版日期:
2017-05-20

文章信息/Info

Title:
Research on mercury adsorption by pyrolytic char of waste tires
作者:
张波仲兆平
东南大学能源热转换及其过程测控教育部重点实验室, 南京 210096; 东南大学能源与环境学院, 南京 210096
Author(s):
Zhang Bo Zhong Zhaoping
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
废轮胎 热解炭 单质汞 吸附脱除 化学改性
Keywords:
waste tires pyrolytic char element mercury adsorption removal chemical modification
分类号:
X511
DOI:
10.3969/j.issn.1001-0505.2017.03.018
摘要:
采用管式炉反应器对废轮胎进行热解,并利用固定床吸附装置研究废轮胎热解炭对单质汞的吸附脱除特性.采用化学浸渍法对热解炭进行改性,研究改性后热解炭的汞吸附特性,改性药剂氯化物分别为HCl,NaCl,KCl,NH4Cl,ZnCl2,FeCl3,BaCl2,过渡金属盐分别为Cu(NO3)2,Fe(NO3)3,Mn(NO3)2,Ce(NO3)3,Zr(NO3)4.研究结果表明,热解炭产率随着温度升高而降低,550 ℃热解炭的Hg0吸附效果最优,30 min累积汞吸附量达到1.674 5 μg/g.550 ℃热解炭经HCl,NaCl,Cu(NO3)2和Zr(NO3)4改性后,汞吸附性能得到显著增强,而KCl,ZnCl2,BaCl2使热解炭吸附汞性能受到抑制.
Abstract:
The pyrolysis of waste tires was conducted using a tube furnace reactor, and a fixed-bed adsorption system was used to study the elemental mercury adsorption removal properties of the pyrolytic char from waste tires. The pyrolytic char was modified by the chemical impregnation method, and the elemental mercury adsorption removal properties of the modified pyrolytic char were also investigated. The modifying agents used here were chlorides and transition metal salts, among which the used chlorides include HCl, NaCl, KCl, NH4Cl, ZnCl2, FeCl3 and BaCl2, and the used transition metal salts include Cu(NO3)2, Fe(NO3)3, Mn(NO3)2, Ce(NO3)3 and Zr(NO3)4. Experimental results indicated that the yield of pyrolytic char decreases with the increasing pyrolysis temperature, and the pyrolytic char obtained at 550 ℃ shows a excellent performance for the adsorption removal of elemental mercury, and the accumulated adsorption amount within 30 min can be as high as 1674.5 ng Hg/g. The pyrolytic char(achieved at 550 ℃)modified by HCl, NaCl, Cu(NO3),and Zr(NO3)4 can promote the elemental mercury adsorption removal properties, while the pyrolytic char modified by KCl, ZnCl2 and BaCl2 can suppress the adsorption removal of the elemental mercury.

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备注/Memo

备注/Memo:
收稿日期: 2016-10-11.
作者简介: 张波(1989—),男,博士,讲师;仲兆平(联系人),男,博士,教授,博士生导师,zzhong@seu.edu.cn.
基金项目: 国家重点基础研究发展计划(973计划)资助项目(2011CB2015052)、中央高校基本科研业务费专项资金资助项目(3203007207).
引用本文: 张波,仲兆平.废轮胎热解炭吸附脱汞实验研究[J].东南大学学报(自然科学版),2017,47(3):521-527. DOI:10.3969/j.issn.1001-0505.2017.03.018.
更新日期/Last Update: 2017-05-20