نوع مقاله : مقاله ترویجی
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
In this research, the absorption of CO2 by an aqueous solution of Amine Piperazine-Ionic liquid was investigated. The Response Surface Method (RSM) based on Central Composite Design (CCD) was used to design experiments, build models, and find optimal operating conditions to achieve optimal responses in the range of used temperature, pressure, and time. The design and optimization of this group of separation units requires to accurate equilibrium and thermodynamic data of vapor-liquid equilibrium. In this study, the optimal loading conditions of CO2 gas were determined using the central composite design (CMD) method. Analysis of the equations performed using quadratic polynomial regression and ANOVA analysis of variance. Enhancement of the pressure and time and reducing the temperature cause increase the solubility of carbon dioxide gas in the amine mixture. The optimal absorption conditions were obtained at pressure 1.6 bar, temperature 21 ℃ and time 1.5 hours. Finally, the mechanism of temperature effect on solubility via Lochatelier’s principle, the effect of pressure on solubility by Henry’s law, and the effect of time on solubility by examining the kinetics of the adsorption reaction was investigated.
کلیدواژهها English