化工园区挥发性有机物排放清单及其环境影响

发布时间：2018-01-11 03:09

本文关键词：化工园区挥发性有机物排放清单及其环境影响　出处：《中国环境科学》2017年11期 　论文类型：期刊论文

【摘要】：以珠三角某化工园区为对象,利用监测计算法和排放系数法结合计算了园区内企业的挥发性有机物(VOCs)排放量,编制了分物种的VOCs排放清单,并利用该清单估算了VOCs的臭氧生成潜势(OFP)和二次有机气溶胶生成潜势,分析了该园区VOCs排放对大气环境的影响.结果表明:园区VOCs排放总量为9118.61t,单个企业排放量为2.98~4176.97t不等,园区内共监测到58种VOCs物种,排放量前3位的物种为乙二醇、丙酸甲酯和二甲苯,3者占园区VOCs排放总量的52.3%.该园区OFP总量为27733.42t,其中贡献量最大的企业为ZR储运,占该园区OFP总量的45.90%.园区内对OFP贡献最大的前10物种是二甲苯、乙二醇、甲苯、2-丙基-1-戊醇、癸醛、三甲苯、辛醇、丙酸甲酯、壬醛、和2,4-二甲苯酚,对OFP的贡献达到94.11%.园区二次有机气溶胶(SOA)生成潜势总量为11187.41×10~(-2)t,其中贡献量最大的企业仍为ZR储运,占园区SOA生成潜势总量的37.25%.园区内对SOA生成潜势贡献最大的前10物种有二甲苯、甲苯、2,4-二甲苯酚、乙苯、三甲苯、叔丁苯、异丙苯、仲丁苯、甲基叔丁基醚和二十烷,SOA生成潜势的贡献为98.93%.利用VOCs排放清单和最大增量反应活性(MIR)计算法以及气溶胶生成系数(FAC)计算法估算区域OFP和SOA生成潜势有助于精确了解区域的污染情况,对于制定相应的VOCs减排政策起到重要作用.
[Abstract]:Taking a chemical industry park in the Pearl River Delta as an example, the VOCs emissions from enterprises in the park were calculated by means of monitoring calculation method and emission coefficient method, and the VOCs emission inventory of each species was compiled. The ozonation potential and secondary organic aerosol formation potential of VOCs were estimated by this list. The effect of VOCs emission on atmospheric environment in the park is analyzed. The results show that the total emission of VOCs in the park is 9118.61 t, and that of a single enterprise is 2.98 ~ 4176.97 t. 58 species of VOCs were detected in the park, and the top 3 species were ethylene glycol, methyl propionate and xylene. The total OFP of the park is 27733.42 t, among which the biggest contribution is ZR storage and transportation. The top 10 species contributing to OFP are xylene, ethylene glycol, toluene 2-propyl-1-pentanol, decanal, tritoluene, octanol. Methyl propionate, nonaldehyde, and 2o 4-xylene phenol. The contribution to OFP is 94.11. The total potential of secondary organic aerosol formation is 11187.41 脳 10 ~ (-2) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1). Among them, ZR storage and transportation is still the largest contribution, accounting for 37.25% of the total potential of SOA generation in the park. The top 10 species in the park contributing most to the potential of SOA generation are xylene and toluene 2. 4-xylene phenol, ethylbenzene, trimethylbenzene, tert-butadiene, cumene, secondary butadiene, methyl tert-#china_person0# ether and 20 alkane. The contribution of SOA formation potential is 98.93. Using VOCs emission inventory and maximum incremental reactive activity (MIR) calculation method and aerosol formation coefficient (fac). The estimation of the formation potential of OFP and SOA by the computational method is helpful to understand the pollution situation of the region accurately. It plays an important role in making the corresponding VOCs emission reduction policy.
【作者单位】：华南理工大学环境与能源学院;华南理工大学挥发性有机物污染治理技术与装备国家工程实验室;广东省大气环境与污染控制重点实验室;
【基金】：环境保护公益性行业科研专项(201409019) 中央高校基本科研业务费专项资金资助项目(2014ZM0068)
【分类号】：X78;X82
【正文快照】： 近年来,我国大气气溶胶和高浓度近地面臭氧(O3)污染事件频发,成为当前困扰国家大气环境的主要问题[1-3].二次有机气溶胶(SOA)是大气气溶胶的重要组成部分,占大气有机气溶胶的20%~80%[4-5],O3也已成为我国许多城市环境空气的首要污染物,因此O3和SOA的有效控制对于缓解当前我国

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