摘要
通过实验优选出一种ＣＵＣｌ－ＭｇＣｌ２水溶系高选择性ＣＯ吸收剂。确定了吸收剂对ＣＯ的最大吸收量与温度的关系，探讨了气体组成变化对ＣＯ回收率的影响，由实验数据求出吸收过程中ＣＯ的回收率为９３％。采用气相色谱分析法测出产物ＣＯ的纯度为９８％，给出吸收液的解吸温度范围为１２０—１４０℃。初步探讨了ＣｕＣｌ－ＭｇＣｌ２水溶系吸收剂对ＣＯ的吸收反应机理。为转炉烟气等工业废气中ＣＯ的分离回收提供了新途径。
An aqueous CuCl--MgCl2 system has been found to be a preferred,highly selective CO absorbent. A relationship between the maximum capacity of the absorbent to absorb CO and temperature was determined. The effects of a change in exhaust gas composition on CO recovery was also studied. The CO recovery with this absorption process was found to be up to 93 %,and the recovered CO has a purity of 98% as determined by gas chromatography(GC).The CO gas can be desorbed from the CO absorbed absorbent liquor at temperatures in the range of 120--140℃. In addition, the mechanism of the absorption reaction between CO and the aqueous CuCl--MgCl2 absorbent system was preliminarily studied. The new process can be used to separate and recover CO gas from industrial exhaust gases, such as the off--gas from steelmaking converters.
出处
《环境科学》
CAS
CSSCI
CSCD
北大核心
1994年第3期38-41,共4页
Environmental Science
基金
冶金部资助
"转炉复吹基础研究"课题
关键词
一氧化碳
化学吸收
废气回收
carbon monoxide, absorbent, chemical absorption
