炼化常减压装置挥发性有机物无组织源谱分析

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摘要以典型常减压装置中工艺管线无组织逸散VOCs为切入点，选取不同地域的多套常减压装置，参照美国EPA包袋法采样标准，并按照HJ 644-2013标准将气态样品转移到组合三吸附管内，利用气相色谱-质谱仪进行分析检测.结果表明，常减压装置无组织排放的VOCs共含116种物质，以烷烃类、烯烃类和醛酮类物质占主导，其中烷烃类物质占总排放的65%以上.在此基础上，对检出物质占比量进行量化分析，明确了常减压装置VOCs无组织排放因子以2-甲基丁烷、丁烯和苯等物质为主，并检出了微量的萘.相关结论可为炼化企业构建VOCs排放清单提供有力支撑，对于后续精细化管理炼化行业的VOCs排放具有指导意义.

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关键词 ：挥发性有机物, 常减压装置, 无组织排放, 包袋法采样, 源谱分析

Abstract：The fugitive volatile organic compounds (VOCs) emitted from the process pipelines in typical atmospheric and vacuum distillation units were investigated to specify the characteristics of the fugitive emission source spectrum in the refining and chemical industry. The US EPA bagging and sampling method-standard was adopted for the sampling of VOCs, and the gaseous VOCs samples were then transferred to the combined three adsorption tubes according to the HJ 644-2013 standard. In the sequence, the gas chromatography-mass spectrometer was used for quantitative analysis of VOCs. The results showed that the unorganized VOCs emitted by atmospheric and vacuum distillation units contained 116 substances, dominated by alkanes, alkenes, aldehydes and ketones, in which alkanes accounted for more than 65% of the emissions total. Moreover, the quantitative analysis of detected substances indicated that the fugitive emission factors of VOCs in atmospheric and vacuum distillation units were mainly 2-methylbutane, butene, benzene, etc. The trace amounts of naphthalene had also been detected. These results can provide strong support for the construction of VOCs emission inventory in the refining and chemical enterprises, presenting a promising tool for the subsequent refined management of VOCs.

Key words： volatile organic compounds (VOCs) atmospheric and vacuum distillation unit fugitive emissions bagging method sampling source spectrometry

收稿日期: 2021-05-10

PACS:

X511

基金资助:吉林省自然科学基金资助项目（2020122373JC）；吉林省教育厅科研规划项目（JJKH20200240KJ）；吉林市科技局项目（201831757）

通讯作者: 高文秀,副教授,gaowenxiu-0922@163.com E-mail: gaowenxiu-0922@163.com

作者简介: 高文秀(1982-),女,吉林吉林人,副教授,博士,主要从事催化化学、环境分析方面研究.发表论文30余篇.

引用本文:

高文秀, 谢晖, 王文利, 韩源, 韩雅娇. 炼化常减压装置挥发性有机物无组织源谱分析[J]. 中国环境科学, 2021, 41(12): 5561-5569. GAO Wen-xiu, XIE Hui, WANG Wen-li, HAN Yuan, HAN Ya-jiao. Unorganized source spectrum analysis of volatile organic compounds (VOCs) in atmospheric and vacuum unit of refining-chemical plant. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(12): 5561-5569.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2021/V41/I12/5561

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