气提/FID法检测石化企业冷却水中VOCs  

Study on Stripping/FID Method of VOCs in Cooling Water of the Petrochemical Industry

作　　者：欧阳振宇 Ouyang Zhenyu(China Petroleum EDI Safety&Environment Protection Co.,Ltd.;Beijing Foreign Enterprise Human Resources Service Qingdao Co.,Ltd.)

机构地区：[1]青岛中油华东院安全环保有限公司 [2]北京外企人力资源服务青岛有限公司

出　　处：《油气田环境保护》2024年第3期45-48,58,共5页Environmental Protection of Oil & Gas Fields

摘　　要：冷却水塔VOCs逸散管控在石化行业VOCs深度减排工作中占有重要地位,水中VOCs定量检测尤显重要。文章以某地区3家石化企业为研究对象,采用气提/FID法对4座冷却水塔进行VOCs定量检测研究,将检测结果与传统GC/MS法进行对比,以期指导水中VOCs定量检测工作。研究结果表明,石化企业冷却水中VOCs浓度为11.9~22.8μg/L(以甲烷计),主要含有丙酮、氯仿、异丙醇及苯乙烯等组分;气提/FID法更有利于低沸点VOCs组分的检测,对于水中溶解度较高和吹除效率不佳的醇类、酸类等VOCs化合物检测结果可能偏低。Controlling VOCs emissions from cooling towers plays an important role in the deep emission reduction of VOCs in the petrochemical industry,and VOCs quantitative monitoring in water is especially important.The three refineries in China was taken as the research object,VOCs quantitative monitoring of four cooling water towers was studied by using Stripping/FID method,and the results were compared with the traditional GC/MS method to guide the quantitative detection of VOCs in water.The results show that the VOCs concentration of cooling water in petrochemical industry ranges from 11.9 to 22.8μg/L(as CH_(4)).It Mainly contains acetone,chloroform,isopropyl alcohol and styrene components.Stripping/FID method is more conducive to the detection of low boiling point VOCs components.The detection results of VOCs such as alcohols and acids with high solubility and poor removal efficiency in water may be low.

关 键 词：石化行业 冷却水 VOCS 气提/FID法 

分 类 号：X830.2[环境科学与工程—环境工程]