Fence Line Monitoring of Petroleum Refining Plants in Korea: UV-DOAS Analysis of SO2, NO2, and Benzene Emissions for Comprehensive Management

Increasing public interest in air pollutants driven by climate change and high concentrations of particulate matter (PM) has highlighted the importance of managing pollutants, such as SO 2 , NO 2 , and benzene. These compounds are known precursors of secondary PM that affect the climate and human he...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2025, 42(1), 300, pp.99-108
Main Authors: Kang, Cheonwoong, Kim, Dongwoo, Kim, Jeonghun, Cho, Sunghwan, Yu, Jungung, Kang, Daeil, Park, Poongmo, Jeon, Kijoon
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Benzene
Biotechnology
Carcinogens
Catalysis
Chemistry
Chemistry and Materials Science
Emission analysis
Emissions
Hydrocarbons
Industrial Chemistry/Chemical Engineering
Materials Science
Nitrogen dioxide
Original Article
Particulate emissions
Petroleum refining
Photochemical reactions
Plant layout
Pollutants
Sulfur dioxide
VOCs
Volatile organic compounds
화학공학
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Summary:Increasing public interest in air pollutants driven by climate change and high concentrations of particulate matter (PM) has highlighted the importance of managing pollutants, such as SO 2 , NO 2 , and benzene. These compounds are known precursors of secondary PM that affect the climate and human health, with benzene being particularly carcinogenic. Benzene is a volatile organic compound (VOC) that can persist in the atmosphere for approximately 9.4 days, potentially traveling long distances and contributing to the generation of secondary organic aerosols (SOAs) through photochemical reactions, leading to elevated fine dust concentrations. To comprehensively manage emissions, leaks, and point sources, a fence line monitoring study was conducted at petroleum refining industrial complexes in Daesan-eup, Chungcheongnam-do, and Yeosu-si, Jeollanam-do in Korea. Ultraviolet Differential Optical Absorption Spectroscopy (UV-DOAS) technology was used to confirm measurement reliability and monitor emissions. High SO 2 concentrations emitted in a specific direction were identified at the Yeosu-si, and further investigation identified the flare stack of a suspected plant as the emission source. Fence line monitoring was effective in identifying and addressing unknown high-concentration emission sources and devising measures to manage fugitive emissions and leaks.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-024-00220-3