钠石灰动态吸附CO2效能分析.pdf

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2013年第32卷第10期
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2463
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研究开发
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钠石灰动态吸附CO2效能分析
耿世彬,肖明星
(解放军理工大学,江苏南京21007)
摘要:为了深入研究钠石灰动态吸附CO2的规律特性,更好地将钠石灰用于地下エ程空气环境保障工程实践,
进行了钠石灰动态吸附CO2的测试实验,测得了钠石灰的最大吸附效率,通过控制不同的环境参数来探究环境
因素对于钠石灰动态吸附CO2效率和吸附速率的影响,实验选取了温度和相对湿度两个变量因素,设置了4组
不同的环境参数。通过实验可得出结论:相对湿度和温度对于钠石灰动态吸附CO2的效率和速卒都有影响,并
且呈正相关,其中相对湿度的影响要强于温度,在等温不等湿时的最大动态吸附效率差达到6%,最大平均吸附
速率差达281mL/min;钠石灰对CO2的动态吸附稳定,不易出现解吸附,适合用于地下工程中消除CO2
关键词:钠石灰;二氧化碳;温度;相对湿度;动态吸附
中图分类号:TQ131
文献标志码
文章编号:1000~-6613(2013)10-2463-04
DOI:10.3969%jisn.10006613.2013.10.033
Analysis of performance of dynamic absorption of carbon dioxide b
sodium ime
GENG Shibin, XIAO Mingxing
(PLA University of Science and Technology, Nanjing 210007, Jiangsu, China
Abstract: This paper conducted an experiment on dynamic absorption of carbon dioxide by sodium
lime. The effects of environment factors and absorption rate on the absorption efficiency were
investigated by controlling different environment parameters. Temperature and relative humidity were
chosen as the controlling factors. The results showed that the maximum absorption efficiency of
sodium lime; both relative humidity and temperature had influences on absorption efficiency and
absorption rate, which were positively correlated; the effects of relative humidity were more obvious
the maximum difference in absorption efficiency was 6% and average dynamic absorption rate
difference was 281 ml/min at different humidifies. The absorption process demonstrated stability and
could be, suitable for carbon dioxide removal in underground applications
Key words: sodium lime; carbon dioxide; temperature; relative humidity; dynamic absorption
CO2是地下空间卫生标准的第一项指标川,在持在正常水平就显得尤为重要。工业上活性炭和沸
战时是指战人员在地下工程中生存、维持生命、保石是最常用的用来变压或者变温吸附捕集CO2的吸
证战斗力的最重要影响因子。地下坑道工程在通风附剂例,国内外常用的CO2化学吸附剂有过氧化钠、
条件下,空气中CO2最高极限浓度为0.5%(体积分氢氧化锂、氢氧化锂-活性炭复合材料
数,下同):隔绝密闭不通风条件下,空气中CO2等?。影响吸附CO2的效率和速率的主要因素是吸
允许浓度为1%,最高极限浓度为1.5%?。工程内人
员呼吸作用和柴油发电站等会使CO2的浓度升高?,收稿目日期:20303235:修改稿日期:20105+14
CO2浓度过高会使人呼吸困难、肢体活动能力减弱,第一作者及联系人:歌世彬(1965-),男,教投,研究方向为地下空
甚至意识丧失,危及生命叫,因此控制CO2浓度保气环境保障技术。 E-mail xiaomingxingtaian(@16comn