江苏大学学报（自然科学版）2013，Vol.34Issue(2)：228-233,6.DOI:10.3969/j.issn.1671-7775.2013.02.019
焦化厂区环境空气中多环芳烃的气固分布特征
Gas/particle distribution characteristics of polycyclic aromatic hydrocarbons in coke plant atmosphere
摘要
Abstract
Gas- and particle-phase samples of ambient air in four typical coke plants were analyzed for EP-As 16 priority-controlled polycyclic aromatic hydrocarbons (PAHs) by gas chromatography-mass spectrome-try (GC-MS). The total PAHs concentration ranges from 3.739 6 to 18. 161 0 μg · m-3 with feature pollutant of benzo(a)pyrene from 0.008 9 to 0.099 8 μg · m-3. The concentration of PAHs decreases with the increase of coke oven height. The mean concentrations of naphthalene and phenanthrene are higher than those of other PAHs, while benzo(ghi)perylene is the lowest in the gas-phase PAHs for four coke plants. The concentration of benzo( b) fluoranthene is the highest with the lowest anthracene concentration in particle-phase. The concentration of gas-phase PAHs is higher than that of particle-phase PAHs, and the fraction of gas-phase PAHs is 87. 2% of the total ones. Coke plants should take action to control the emissions of naphthalene and phenanthrene. There is a perfect correlation between gas/particle partition coefficients and sub-cooled liquid vapor pressure of PAHs with R2 of 0. 95 and mr of - 0. 52. Absorption is the main mechanism of gas/particle partitioning for PAHs in the atmosphere of coke plant.关键词
多环芳烃/焦化厂/环境空气/气固分配/BaPKey words
polycyclic aromatic hydrocarbon/ coke plant/ ambient air/ gas/particle distribution/ BaP分类
资源环境引用本文复制引用
刘效峰,彭林,白慧玲,牟玲,宋翀芳..焦化厂区环境空气中多环芳烃的气固分布特征[J].江苏大学学报（自然科学版）,2013,34(2):228-233,6.基金项目
环保部环保公益性行业科研专项基金资助项目(200809027) （200809027）
国家自然科学基金资助项目(41173002) （41173002）
