CAJ | 학술논문

选取LiOH、Ca( OH)2和钠石灰三种常用固体化学吸收剂,在密闭环境CO2循环净化模拟装置上开展了CO2循环净化实验研究.三种吸收剂均有吸收CO2的作用,且均存在一个较优空速值,分别为110400、38700和40500 h-1,在该空速值条件下将体积分数2%左右的CO2吸收至0.03%左右所需反应时间最短,反应速率最大.通过函数拟合和数学分析,得出实验条件下三种吸收剂反应速率与CO2质量浓度的关系式以及最大反应速率的排列次序.进一步的分析表明,三种吸收剂在较优空速值条件下的CO2吸收速率均能达到相关标准的要求,可以实际应用于密闭环境内CO2净化,且密闭环境中CO2体积分数理论上会在一定的中间值附近波动.
선취LiOH、Ca( OH)2화납석회삼충상용고체화학흡수제,재밀폐배경CO2순배정화모의장치상개전료CO2순배정화실험연구.삼충흡수제균유흡수CO2적작용,차균존재일개교우공속치,분별위110400、38700화40500 h-1,재해공속치조건하장체적분수2%좌우적CO2흡수지0.03%좌우소수반응시간최단,반응속솔최대.통과함수의합화수학분석,득출실험조건하삼충흡수제반응속솔여CO2질량농도적관계식이급최대반응속솔적배렬차서.진일보적분석표명,삼충흡수제재교우공속치조건하적CO2흡수속솔균능체도상관표준적요구,가이실제응용우밀폐배경내CO2정화,차밀폐배경중CO2체적분수이론상회재일정적중간치부근파동.
By using a simulation device of CO2 circulation purification in a closed environment, CO2 circulation purification experi-ments were carried out with three kinds of solid chemical absorbents, LiOH, Ca( OH) 2 and soda lime. Experimental results show that all the absorbents can absorb CO2 , and there are the optimal space velocity values for the three absorbents, which are 110400, 38700, and 40500 h-1 , respectively. Under these space velocity value conditions, the reaction time is the shortest and the reaction rate is the fastest for absorbing the CO2 volume fraction of 2% to 0.03%. The relationships between reaction rate and CO2 mass concentration as well as the maximum reaction rate order of the three absorbents under experimental conditions were obtained by function fitting and mathematical analysis. Further analysis indicates that the CO2 absorption rates of the three absorbents under the optimal space velocity value conditions are able to meet the requirements of relevant standards for actual CO2 purification in closed environments, while the CO2 volume fraction would fluctuate around certain intermediate values in theory.