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。
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.
出处
《化学反应工程与工艺》
CAS
CSCD
北大核心
2015年第3期266-270,共5页
Chemical Reaction Engineering and Technology
关键词
环氧丙烷
硫酸
活性炭纤维吸附
水解
propylene oxide
sulfuric acid
activated carbon fiber adsorption
hydrolysis