CAJ | 학술논문

醇胺溶液具有对二氧化碳吸收速率快、吸收容量大及再生简单的特点,采用电位法和酸碱度法对一乙醇胺(MEA)、二乙醇胺(DEA)、三乙醇胺(TEA)吸收二氧化碳特性进行研究,揭示电位、酸碱度与吸收速率、吸收容量之间的内在联系,并考察醇胺溶液再生二氧化碳的特性,提出测定溶液中醇胺浓度和CO2体积分数的新方法.结果表明:MEA和DEA是优良的醇胺吸收剂;做出速率-电位曲线或速率-酸碱度曲线,就可以利用电位法或酸碱度法对醇胺溶液吸收二氧化碳的反应程度进行估测.
순알용액구유대이양화탄흡수속솔쾌、흡수용량대급재생간단적특점,채용전위법화산감도법대일을순알(MEA)、이을순알(DEA)、삼을순알(TEA)흡수이양화탄특성진행연구,게시전위、산감도여흡수속솔、흡수용량지간적내재련계,병고찰순알용액재생이양화탄적특성,제출측정용액중순알농도화CO2체적분수적신방법.결과표명:MEA화DEA시우량적순알흡수제;주출속솔-전위곡선혹속솔-산감도곡선,취가이이용전위법혹산감도법대순알용액흡수이양화탄적반응정도진행고측.
The amine solution is characterized by quick absorption,large absorption capacity and simple regeneration. The potentiometry method and pH method were used to study carbon dioxide absorption characteristics in MEA, DEA and TEA solution. The relations among electric potential, pH, absorption rate, absorption capacity were studied. The new measurement methods about amine solution concentration and carbon dioxide concentration were presented. The results show that MEA and DEA are good amine solutions. Also after drawing the relation curve between absorption rate and potentiometry or absorption rate and pH, the potentiometry method (or pH method) can be used to analyze the absorption extent of CO2 in amine solutions.