微波联合改性活性炭处理不同SO2浓度烟气脱硫效率  

Microwave Combined Modified Activated Carbon for Treatment of Flue Gas Desulfurization Efficiency of Different Concentrations of SO2

作　　者：石焱 孔征 胡长庆 赵莹 王帅 赵鑫 Shi Yan;Kong Zheng;Hu Changqing;Zhao Ying;Wang Shuai;Zhao Xin(College of Metallurgy and Energy,North China University of Science and Technology,Hebei Province Key Laboratory of Modern Metallurgy Technology,Tangshan 063210,Hebei,China)

机构地区：[1]华北理工大学冶金与能源学院河北省现代冶金技术重点实验室

出　　处：《钢铁钒钛》2019年第5期84-88,共5页Iron Steel Vanadium Titanium

基　　金：国家自然科学基金项目(51274084);唐山市人才资助项目(A201903005);河北省自然科学基金—钢铁联合基金(E2014209152)

摘　　要：以活性炭为研究对象,通过微波辐照改性,并协同微波在线处理具有不同浓度SO2成分的模拟烟气,分别改变微波加热温度、加热时间、活性炭质量、烟气流速以及SO2浓度,分析改性活性炭与微波联合处理不同SO2浓度模拟烟气脱硫效率的影响因素。结果表明,提高微波温度会使脱硫效率增大,温度为800℃时,脱硫效率达到72%;适当延长加热时间有利于提高脱硫效率,加热时间为6 min时脱硫效率达到69%,继续延长加热时间对脱硫效果影响不明显;增加活性炭质量有利于脱硫效率的提高,在质量为50 g时,脱硫效率达到最大值76.45%;增大烟气流速会减小活性炭的脱硫效率,烟气流速为0.3 L/min时脱硫效率最大值81.05%;提高SO2浓度会使脱硫效率减小,当SO2浓度为400×10^-6时,脱硫效率为84%。Activated carbon was used as the research object,and the simulated flue gas with different concentrations of SO2 was processed by microwave irradiation.Through varying microwave heating temperature,heating time,activated carbon quality,flue gas flow rate and SO2 concentration,the factors influencing desulfurization efficiency of simulated flue gas with different SO2 concentration by activated carbon combined with microwave had been investigated The results show that increasing the microwave temperature will increase the desulfurization efficiency.When the temperature is 800℃,the desulfurization efficiency will reach 72%.Prolonging the heating time will help to improve the desulfurization efficiency.When the heating time is 6 min,the desulfurization efficiency will reach 69%.Further prolonging heating time do not result in significant improvement in desulfurization.Increasing the quality of activated carbon is beneficial to the improvement of desulfurization efficiency.When the activated carbon used is 50 g,the desulfurization efficiency reaches a maximum of 76.45%.Increasing the flue gas flow rate will reduce the desulfurization efficiency of activated carbon,and the flue gas flow rate of 0.3 L achieves the maximum desulfurization efficiency of 81.05%.Increasing the SO2 concentration will reduce the desulfurization efficiency.When the SO2 concentration is 400×10^-6,the desulfurization efficiency is 84%.

关 键 词：烧结 烟气 SO2 活性炭 微波 脱硫效率 

分 类 号：X757[环境科学与工程—环境工程] TM924.76[电气工程—电力电子与电力传动]