Emission behavior of crumb rubber modified asphalt in the production process
Emission behavior of crumb rubber modified asphalt in the production process
复制标题
胶粉改性沥青生产过程中的排放行为
DOI：
10.1016/j.jclepro.2022.130850
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发表时间：
2022-03
影响因子：
11.1
通讯作者：
Huang Weidong
中科院分区：
文献类型：
--
作者：
Tang Naipeng;Zhang Zhiyu;Dong Ruikun;Zhu Hongzhou;Huang Weidong
橡胶屑改性沥青的挥发性和半挥发性排放对大气环境有负面影响，可能制约其在路面工程中的应用。为了解决这一问题，有必要了解CRMA在生产过程中的排放行为，但目前还没有很好的评价。本研究旨在研究crma在180°C、220°C和260°C生产过程中的排放行为。制备了两种纯粘结剂和一种- 40目橡胶屑。发射样品在实验室用活性炭吸附管收集，用二硫化碳解吸进行气相色谱-质谱分析。结果表明，挥发物和半挥发物的发射行为可以用一个由线性分数和指数分数组成的快-慢两阶段发射函数来描述。终端混合（TB）技术，例如，260°C固化过程，比传统的湿法工艺具有环境优势，因为TB过程中的大量排放可以在炼油厂处理。与纯沥青相比，橡胶屑改性沥青（CRMA）新增了苯并噻唑、N-环己基环己胺、2,2,4-三甲基-1,2-二氢醌、二苯基乙炔、二环己基二硫、十六烷酸、十八烷酸、N-（1,3-二甲基丁基）-N′-苯基-1,4-苯二胺等9种化合物，主要来源于橡胶工业中常用的促进剂和助剂。
The volatile and semi-volatile emissions of crumb rubber modified asphalt (CRMA) has a negative effect on atmosphere environment, which might restrict its application in pavement engineering. To solve this problem, it is necessary to understand the emission behavior of CRMA in the production process, which has not been well evaluated yet. The present study aims to investigate the emission behavior of CRMAs during production at 180 °C, 220 °C and 260 °C. Two neat binders and one minus 40 mesh crumb rubber were involved in the preparation of CRMAs. The emission samples were collected by activated charcoal sorbent tube in the laboratory and desorbed by carbon disulfide for further gas chromatography–mass spectrometry (GC-MS) analysis. The results indicate that the emission behavior of volatiles and semi-volatiles can be described with a fast-slow two-stage emission function, consisted of a linear fraction and an exponential fraction. Terminal blend (TB) technology, e.g., 260 °C curing process, offers environmental advantage over traditional wet-process due to the fact that a large amount of emissions in the TB process can be disposed at the refinery. Compared with neat asphalt, crumb rubber modified asphalt (CRMA) has 9 new compounds, including benzothiazole, N-cyclohexylcyclohexanimine, 2,2,4-trimethyl-1,2-dihydroquine, diphenylacetylene, dicyclohexyl disulfide, hexadecanoic acid, octadecanoic acid, N-(1,3-Dimethylbutyl)-N′-phenyl-1,4-phenylenediamin, which are mainly derived from accelerators and additives commonly used in the rubber industry.
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影响因子：
11.1
作者：
Y. Wen;Yuhong Wang;Kecheng Zhao;D. Chong;Weidong Huang;G. Hao;Shicong Mo
通讯作者：
Y. Wen;Yuhong Wang;Kecheng Zhao;D. Chong;Weidong Huang;G. Hao;Shicong Mo
影响因子：
11.1
作者：
Autelitano, Federico;Bianchi, Federica;Giuliani, Felice
通讯作者：
Giuliani, Felice
硫磺在终端共混橡胶沥青中的抗老化潜力
影响因子：
7.4
作者：
Tang, Naipeng;Dong, Ruikun
通讯作者：
Dong, Ruikun
DOI：
10.1016/s2095-7564(15)30087-8
发表时间：
2014-02
影响因子：
--
作者：
Haiping Zhou;S. Holikatti;P. Vacura
通讯作者：
Haiping Zhou;S. Holikatti;P. Vacura
影响因子：
13.6
作者：
Yang, Xu;You, Zhanping;Luo, Sang
通讯作者：
Luo, Sang