钠石灰吸附CO_2性能的影响因素试验研究  

Experimental Study on Influence Factors of Adsorptive CO_2 Property of Soda Lime

作　　者：杨喆[1,2] 金龙哲[1,2] 何知遥 汪澍[1] 欧盛南[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]矿山避险技术研究中心,北京100083 [3]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《煤矿安全》2015年第9期67-70,74,共5页Safety in Coal Mines

基　　金："十二五"国家科技支撑计划资助项目(2012BAK09B00)

摘　　要：为研究井下紧急避险空间钠石灰去除CO2技术,提高药剂吸附容量及反应速率,基于钠石灰化学反应原理与反应速率分析,确定钠石灰吸附性能的影响因素。通过筛选市场常见钠石灰,分析药剂组分、粒径、长度对吸附性能的影响,设计正交试验研究药剂厚度、风机功率等因素对吸附速率的影响,确定钠石灰的最佳配比及最佳工作条件。结果表明:吸附容量随着水分与Na OH比值的增加先增大后减小,最佳药剂成分配比及颗粒尺度为:水与Na OH比值0.5,粒径为6.0 mm,长度30 mm;最佳工作条件为:药剂层厚度8 cm,风机功率30 W。In order to study the adsorption technology of CO2 by soda lime in the underground emergency refuge space,and improve the adsorption capacity and the reaction rate of adsorbent,the influence factors of adsorptive property of soda lime were determined based on the soda lime chemical reaction mechanism and reaction rate. The effect of components,particle size and length on the adsorptive property was investigated through screening of common market soda lime,and the effect of adsorbent thickness and power of fan on the adsorption rate was investigated by orthogonal experiment,the optimum proportion of soda lime and the best working conditions was determined finally. The results show that the adsorption capacity increased first and then decreased with increasing of the ratio of water and Na OH,the optimum proportion and particle size of soda lime are that ratio of water and Na OH is 0. 5,particle size is 6 mm,length is 30 mm; the best working conditions show that the adsorbent layer thickness is 8 cm,the fan power is 30 W.

关 键 词：钠石灰 吸附性能 穿透曲线 压汞法 孔隙结构 

分 类 号：TD774[矿业工程—矿井通风与安全]