超重力氨法烟气脱硫工艺实验研究  

Experimental study on high gravity ammonia-based flue gas desulphurization process

作　　者：孙志斌[1] 祁贵生[1] 刘有智[1] 袁志国[1] 于娜娜[1] 

机构地区：[1]中北大学山西省超重力化工工程技术研究中心,太原030051

出　　处：《天然气化工—C1化学与化工》2012年第6期33-36,共4页Natural Gas Chemical Industry

基　　金：太原市科技项目立项大学生创新创业专题(120164036)

摘　　要：在超重力旋转填料床中,以(NH4)2SO3-NH4HSO3混合溶液作为吸收剂,对模拟烟气中的SO2进行吸收实验研究。考察了吸收液pH值、旋转填料床转速、液气比及入口SO2浓度对脱硫率的影响。实验结果表明:SO2脱除率随着吸收液pH值、旋转填料床转速和液气比的增大而增大,随着入口SO2浓度的增大而减小。并得出了适宜的操作条件为:超重力旋转床转速1000r/min,液气比(L/G)为3L/m3～4L/m3,吸收液pH值为6.0～6.5,入口φ(SO2)在1000×10-6以下,在此条件下,脱硫率可以稳定在95%以上。SO2 absorption of simulated flue gas in a high gravity rotating packed bed with （NH4）2SO3-NH4HSO3 solution as absorbent was studied experimentally. The influences of absorbent pH value, rotating speed, ratio of liquid to gas and inlet SO2 concentration on the desulfurization efficiency were investigated. The results showed that with the increase of absorbent pH value, rotating speed and the ratio of liquid to gas and the decrease of inlet SO, concentration, SO,. removal efficiency increased. The optimum operating conditions were determined as follows： rotating speed of 1000r/min, ratio of liquid to gas of 3L/m3-4L/m3, absorbent pH value of 6.0-6.5 and SO2 volume fraction of inlet gas below 1000×10^-6. Under above conditions, SO,_ removal efficiency could keep above 95%.

关 键 词：烟气脱硫 超重力 旋转填料床 氨法 二氧化硫 

分 类 号：X51[环境科学与工程—环境工程] X7