CAJ | 학술논문

醇胺溶液吸收 CO2是沼气提纯领域重要的研究课题。在实验填料吸收塔中，以 NaOH 水溶液吸收低浓度CO2的实验结果估算了填料的有效相界面积，建立了乙醇胺（MEA）溶液吸收高浓度CO2增强因子的数学模型，并从数学模型和实验的角度研究了MEA浓度、进气流率、CO2浓度等工艺参数对MEA吸收CO2增强因子的影响。结果表明，增强因子数学模型计算值与实验值能够良好吻合，MEA吸收CO2化学反应增强因子随进气CO2浓度增加而降低，随MEA浓度增加而增加，随进气流率增加而减小。
순알용액흡수 CO2시소기제순영역중요적연구과제。재실험전료흡수탑중，이 NaOH 수용액흡수저농도CO2적실험결과고산료전료적유효상계면적，건립료을순알（MEA）용액흡수고농도CO2증강인자적수학모형，병종수학모형화실험적각도연구료MEA농도、진기류솔、CO2농도등공예삼수대MEA흡수CO2증강인자적영향。결과표명，증강인자수학모형계산치여실험치능구량호문합，MEA흡수CO2화학반응증강인자수진기CO2농도증가이강저，수MEA농도증가이증가，수진기류솔증가이감소。
CO2 absorption by aqueous alkanolamine solution is an important research topic in the field of biogas purification. A packed tower was used to investigate the CO2 absorption by ethanolamine (MEA) solutions. The effective gas-liquid interfacial area was calculated from the experimental results of CO2 absorption by sodium hydroxide aqueous solutions. A mathematical model was proposed to calculate the enhancement factor of the CO2 absorption of relatively high concentration by MEA aqueous solutions. The influence of various technological parameters on the enhancement factor of CO2 absorption by MEA was analyzed from the two aspects of mathematical model and experiment, including gas flow rate, MEA concentration and CO2 concentration. The results show that the model predictions are in good agreement with the experimental values. The enhancement factor of CO2 absorption by MEA increases with the increment of MEA concentration and decreases with the increment of CO2 concentration and gas flow rate.