矿井密闭救援空间CO_2吸附剂试验研究  

Experimental research on CO_2 adsorbent in mine confined rescue space

作　　者：杨喆[1,2] 金龙哲[1,2] 尹国光 汪澍[1] 欧盛南[1] 徐洋[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]山东黄金归来庄矿业有限公司,山东临沂273300

出　　处：《中南大学学报（自然科学版）》2015年第8期3160-3166,共7页Journal of Central South University:Science and Technology

基　　金：国家"十二五"科技支撑计划项目(2012BAK09B07)~~

摘　　要：为提高CO2吸附剂吸附容量,降低反应产热产湿,基于钠石灰化学反应原理,通过单因素试验研究NaOH、水及添加剂对吸附性能的影响;设计正交试验确定最佳工艺条件,通过试验与现场应用对新型吸附剂进行性能测试。研究结果表明:以氢氧化钙为主要成分,NaOH、水分及羧甲基淀粉钠的质量分数分别为7%,15%和3%时效果最佳;药剂吸附容量为200.96L/kg,与旧药剂相比增加21%;产热速率为287.4J/min,产湿速率为3.06g/min,产湿量降低26%;新型吸附剂对不同体积分数的CO2具有较高的处理能力,满足不低于0.5L/(min·人)的要求,使用后的药剂未出现颗粒烧结及黏结现象,经翻转、筛选处理后利用率可提高34%。In order to improve CO2 adsorption capacity and reduce reaction production of heat and humidity based on the soda lime chemical reaction mechanism. The effects of Na OH, water and additives on the properties were investigated through single factor test, the optimum process conditions were determined by orthogonal experiment, and adsorption performances were tested by laboratory testing and field application. The results show that the best contents of Na OH, water and sodium carboxymethyl starch are 7%, 15% and 3%, when the main component is hydroxide. The adsorption capacity is 200.96 L/kg; the production rate of heat is 287.4 J/min and production rate of humidity is 3.06 g/min. Compared with the original adsorbent, adsorption capacity increases 21% and humidity reduces 26%. The new adsorbents have a higher processing capacity for different volume fractions of CO2, and meet the request of not less than 0.5 L/min per person. The phenomenon of particle sintering and bonding for used adsorbent doesn＇t appear, and the utilization can be increased by 34% through flip and screening.

关 键 词：密闭救援空间 CO2吸附剂 吸附容量 正交试验 

分 类 号：X924.4[环境科学与工程—安全科学]