安全、健康和环境2026，Vol.26Issue(4)：27-34,8.DOI:10.3969/j.issn.1672-7932.2026.04.005
石化企业典型排放源VOCs排放特征及其环境影响评价
Emission Characteristics and Environmental Impact Assessment of VOCs from Typical Emission Sources of Petrochemical Enterprises
摘要
Abstract
To investigate the emission characteristics and environmental impact of volatile organic com-pounds(VOCs),this study monitored 116 VOCs species across six production units,including the catalytic cracking unit,at a petrochemical enterprise in East China.The results indicated that the catalytic reforming unit exhibited the highest concentration of total VOCs(TVOCs)at 1 544.17 μg/m3.Alkanes were the dominant pollutants,contributing 34.5%to 79.8%of the total emissions across all units,with low-carbon alkanes such as ethane and propane showing consistently high concentrations.Furthermore,alkenes and aromatics demonstra-ted the highest contribution to ozone formation,with m/p-xylene,o-xylene,and propylene identified as critical precursors.Aromatics also constituted the largest contributors to secondary organic aerosol(SOA)formation across all units(70.5%～92.3%),among which benzene,toluene,and o-xylene emerged as the key reactive species.Overall,while the enterprise′s current VOCs emission levels are moderate,the treatment of low-carbon alkanes should be further enhanced to reduce general VOCs pollution.Consequently,strict emission controls on specific high-risk substances,notably acrolein,benzene,and o-xylene,must be implemented to effectively mit-igate their environmental impact.关键词
挥发性有机物/石化园区/排放特征/二次有机气溶胶/臭氧生成潜势Key words
volatile organic compounds/petrochemical park/emission characteristics/secondary organic aerosol/ozone formation potential分类
资源环境引用本文复制引用
彭金蝉,冯云霞,蒙毅,亓海军,郭一蓉,王好,肖安山..石化企业典型排放源VOCs排放特征及其环境影响评价[J].安全、健康和环境,2026,26(4):27-34,8.基金项目
中国石化科技部项目(324005),石化企业典型异味源臭气浓度定量表征技术及装备研究. （324005）
