某焦化企业挥发性有机物排放特征及反应活性探究

董威; 耿立志; 费波

doi:10.13205/j.hjgc.202402019

某焦化企业挥发性有机物排放特征及反应活性探究

doi: 10.13205/j.hjgc.202402019

董威¹,
耿立志²,
费波^3, ,

1. 上海金艺检测技术有限公司, 上海 201900;
2. 中国宝武钢铁集团有限公司, 上海 200126;
3. 上海市环境科学研究院, 上海 200233

基金项目:

上海市科委科研计划项目(20dz1204000)

详细信息

作者简介:
董威(1981-),男,高级工程师,主要研究方向为环境监测及钢铁行业污染治理。dongwei@baosteel.com

通讯作者:
费波(1994-),硕士,工程师,主要研究方向为石化行业VOCs减排技术及工业废气治理效果核查评估。feibosaes@163.com

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出版历程
- 收稿日期: 2023-05-04
- 网络出版日期: 2024-04-28

RESEARCH ON CHARACTERISTICS AND REACTIVITY OF VOLATILE ORGANIC COMPOUNDS EMISSION FROM A COKING ENTERPRISE

DONG Wei¹,
GENG Lizhi²,
FEI Bo^{3
, ,}

1. Shanghai Jinyi Inspection Technology, Shanghai 201900, China;
2. China BAOWU Steel Group, Shanghai 200126, China;
3. Shanghai Academy of Environmental Sciences, Shanghai 200233, China

摘要

摘要: 研究选取某典型焦化企业,针对活性挥发性有机物(VOCs)组分较多的4套生产装置,酚精制、古马隆、沥青焦和焦油萘,开展装置VOCs排放特征探究。使用苏玛罐对装置VOCs废气进行采集,并通过气相色谱-质谱联用仪(GC-MS)对106种VOCs组分进行定性定量分析,采用最大增量反应活性(MIR)计算各装置VOCs排放对大气中O₃生成的贡献。结果表明:1)芳香烃、卤代烃和含氧VOCs(OVOCs)是4套装置的主要特征组分,质量分数之和为92.33%~95.38%。2)4套装置排名前10位的VOCs物种质量分数之和为90.45%~93.46%。其中,苯、丙酮、二氯甲烷、乙醇和甲苯等是焦化企业VOCs排放特征物种。3)4套装置臭氧生成潜势(OFP)值为278.73~426.95μg/m³,顺序为焦油萘装置(426.95μg/m³)>酚精制装置(410.43μg/m³)>沥青焦装置(294.36μg/m³)>古马隆装置(278.73μg/m³)。4)4套装置排名前10位的物种对OFP的贡献率为96.24%~97.97%。苯、甲苯、间/对-二甲苯、乙烯和丙酮等是行业的关键活性物种。5)不同焦化生产装置VOCs排放特征物种不一,对OFP有贡献的活性物种也有所差异。酚精制装置对OFP贡献最大的活性物种为间/对-二甲苯,古马隆和沥青焦装置对OFP贡献最大的活性物种为乙烯,焦油萘装置首要活性物种为甲苯,建议根据研究筛选出的关键活性组分制定具有针对性的VOCs减排策略。控制焦化行业VOCs排放对OFP贡献,应优先考虑采取针对性措施控制不同装置区域特征污染组分的排放,如重点加强活性物料储罐呼吸气的收集处理、注重涉活性物料装置的泄漏检测与修复(LDAR)实施效果等。
- 焦化 /
- 挥发性有机物 /
- 排放特征 /
- 反应活性
Abstract: The study selected a typical coking enterprise to carry out the characterization of unit VOCs emissions for four production units with high active volatile organic compounds(VOCs) components, namely, phenol refining, Gumarone, asphalt coke, and tar naphthalene. Unit VOCs exhaust was collected using a Suma tank, and 106 VOCs components were characterized and quantified by gas chromatography-mass spectrometry(GC-MS), and the contribution of each unit's VOCs emission to the generation of O₃ in the atmosphere was calculated using the maximum incremental reactivity(MIR). The results showed that: 1) aromatic hydrocarbons, halogenated hydrocarbons, and oxygenated VOCs(OVOCs) were the main featured components of the four units, and the sum of mass fractions accounted for 92.33% to 95.38%. 2) The sum of mass fractions of the top 10 VOCs species ranked by the four units ranged from 90.45 to 93.46%. Among them, benzene, acetone, methylene chloride, ethanol, and toluene were the characteristic species of VOCs emission from coking enterprises. 3) The ozone generation potential(OFP) values of the four units were 278.73 μg/m³ to 426.95 μg/m³, in an order of tar naphthalene unit(426.95 μg/m³)>phenol refining unit(410.43 μg/m³)>asphalt coke unit(294.36 μg/m³)>Gumarone unit(278.73 μg/m³). 4) The contribution of the top 10 species of the four units to OFP ranged from 96.24% to 97.97%. Benzene, toluene, m/p-xylene, ethylene, and acetone were the key active species in the industry. 5) Different coking production units had different species characterizing VOCs emissions, and the active species contributing to OFP varied. The largest active species contributing to OFP from phenol refining unit was m/p-xylene, the largest active species contributing to OFP from Gumarone and asphalt coke unit was ethylene, and the primary active species from tar naphthalene unit was toluene. It is recommended that targeted VOCs emission reduction strategies be formulated based on key active components screened in the study. To control the contribution of VOCs emissions to the OFP in the coking industry, priority should be given to the adoption of targeted measures to control the emissions of characteristic pollutant components in different installation areas, such as focusing on strengthening the collection and treatment of respiratory gases from the storage tanks of reactive materials, and the effectiveness of the implementation of the LDAR in the installations involving reactive materials.
- coking /
- volatile organic compounds /
- emission characteristics /
- reactivity

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