石化工业区VOCs排放特征及其对二次污染形成的贡献

石油炼制与化工 ›› 2022, Vol. 53 ›› Issue (6): 120-127.

石化工业区VOCs排放特征及其对二次污染形成的贡献

冯云霞

中石化安全工程研究院有限公司化学品安全控制国家重点实验室

收稿日期:2021-11-23 修回日期:2022-02-14 出版日期:2022-06-12 发布日期:2022-05-27
通讯作者: 冯云霞 E-mail:fengyx.qday@sinopec.com
基金资助:
中国石化科技部资助项目

CHARACTERISTICS OF VOCs EMISSION FROM A PETROCHEMICAL INDUSTRY AREA AND ASSOCIATED CONTRIBUTIONS TO SECONDARY POLLUTION

Received:2021-11-23 Revised:2022-02-14 Online:2022-06-12 Published:2022-05-27

摘要/Abstract

摘要： 利用在线气相色谱-质谱仪/氢火焰离子化检测器对某石化工业区挥发性有机物（VOCs）进行连续在线监测，研究了排放特征、对二次污染的贡献和污染来源。结果表明，该石化工业区监测期间VOCs以烷烃、芳烃、含氧有机物等为主。利用正定矩阵因子分析模型解析VOCs排放源，确定出该工业区4个VOCs排放源，分别为东南侧化工企业、西南侧化工企业、炼油厂生产区和污水处理区。由二次污染评估结果可知，化工企业排放源和炼油厂排放源对臭氧生成潜势的贡献率基本各为50%，而化工企业对二次有机气溶胶的贡献率明显高于炼油厂。因此，应根据主要污染源和关键活性组分制定优先控制策略。

关键词: 石化工业区, 挥发性有机物, 排放特征, 臭氧, 有机气溶胶, 源解析

Abstract: Atmospheric volatile organic compounds (VOCs) were continuously monitored using on-line gas chromatography mass spectrometer/flame ionization detector system（GC-MS/FID） in a petrochemical industry area from January 2020 to June 2020 to analyze the emission characteristics, ozone formation potential, and potential sources of VOCs. During the sampling period, alkanes were the most predominant VOCs, followed by aromatic compounds and oxygenated VOCs. Four potential sources of VOCs were quantified by the positive matrix factorization model, including chemical companies on the southeast side, chemical companies on the southwest side, refinery production areas, sewage treatment area. According to the secondary pollution assessment method, the contribution of chemical companies and refinery emission sources to the zone formation potential is 50% each, while the contribution of chemical companies to the secondary organic aerosol is significantly higher than that of refineries. Therefore, priority control strategies should be formulated based on the selected major pollution sources and key active components in the petrochemical industrial park.

Key words: petrochemical industry area, volatile organic compounds, emission characteristics, ozone, organic aerosol, source apportionment

冯云霞. 石化工业区VOCs排放特征及其对二次污染形成的贡献[J]. 石油炼制与化工, 2022, 53(6): 120-127.

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