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环氧丙烷废气处理工艺
国家聚氨酯工程技术研究中心 万华化学集团股份有限公司,山东 烟台 264006
Process Evaluation for Treatment of Waste Gas Containing High Concentration Propylene Oxide
National Engineering Center for Polyurethane, Wanhua Chemical Group Company Limited, Yantai 264002, China
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摘要 为使聚醚生产工艺产生的环氧丙烷(PO)废气排放达到环保标准,采用硫酸酸洗与活性炭纤维吸附工艺处理高浓度环氧丙烷废气。考察了酸洗工艺操作条件与活性炭纤维动态吸附对废气中PO去除效果的影响,并对两个工艺组合效果进行了评价。结果表明,在温度为25 ℃,PO废气进气量100 L/h,硫酸浓度(质量分数)为30%,酸量1.5 L,活性炭纤维装填量10 g时,酸洗与活性炭纤维吸附组合工艺对废气中的PO有很高的去除效果,初始浓度为800 g/Nm3的废气经处理后浓度降为4 mg/Nm3,达到了环保要求,说明组合工艺用于环氧丙烷废气处理的可行性。
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张宏科
姚 雨
徐 辉
陈 斌
王海峰
刘 林
关键词 环氧丙烷硫酸活性炭纤维吸附水解    
Abstract:In order to reduce the concentration of propylene oxide in waste gas to meet the environmental standard, the sulfuric acid pickling technology and activated carbon fiber (ACF) adsorption process were combined to treat the waste gas containing high concentration propylene oxide. The effects of pickling operation conditions, dynamic adsorption time of activated carbon and combining the two processes on the efficiency of propylene oxide removal were investigated separately. The results indicated that under the optimal operation conditions of temperature of 25 ℃, inlet gas quantity of 100 L/h, sulfuric acid concentration of 30% and quantity of 1.5 L, ACF quantity of 10 g, the concentration of the propylene oxide gas was reduced from 800 g/Nm3 to 4 mg/Nm3 when using the combined process. It is proved that the combined process is a proper technology for propylene oxide waste gas treatment.
Key wordspropylene oxide    sulfuric acid    activated carbon fiber adsorption    hydrolysis   
收稿日期: 2014-07-08     
作者简介: 张宏科(1970—),男,研究员级高级工程师;徐 辉(1985—),男,研发工程师,通讯联系人。E-mail:xuhui@whchem.com。
引用本文:   
张宏科,姚 雨,徐 辉等. 环氧丙烷废气处理工艺[J]. 化学反应工程与工艺, 2015, 31(3): 266-270.
Zhang Hongke,Yao Yu,Xu Hui et al. Process Evaluation for Treatment of Waste Gas Containing High Concentration Propylene Oxide[J]. 化学反应工程与工艺, 2015, 31(3): 266-270.
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