04 خرداد 1403
پيوند واله شيدا

پیوند واله شیدا

مرتبه علمی: دانشیار
نشانی: کرمانشاه، دانشگاه صنعتی کرمانشاه-دانشکده مهندسی-گروه مهندسی شیمی
تحصیلات: دکترای تخصصی / مهندسی شیمی
تلفن: 083-38305004 (1166)
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان
An optimization framework to investigate the CO2 capture performance by MEA: Experimental and statistical studies using Box-Behnken design
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
CO2 Absorption percentage Overall mass transfer coefficient Experimental design Energy optimization
پژوهشگران ساسان صحرایی (نفر اول)، حامد رشیدی (نفر دوم)، پیوند واله شیدا (نفر سوم)

چکیده

The absorption of carbon dioxide gas by monoethanolamine (MEA) in the packed tower is the most common method for the CO2 capture. The present study describes the set-up and operation of a laboratory-scale CO2 capture unit in detail, as the closed cycle of the absorption/desorption process continuously operated at the different operating conditions. The effect of six independent variables was investigated on CO2 absorption in three levels. To analyse the results, Response Surface Box-Benhken design method was applied. The absorption unit was evaluated in terms of absorption percentage (Φ), the overall gas phase mass transfer coefficient (KGaV), and the specific heat duty of the reboiler (η). The results of the analysis indicated that the MEA concentration in the solvent had the most significance, whereas the input solvent temperature had the least effect upon the overall gas phase mass transfer coefficient. The response surface optimization was also carried out to determine the optimal operating conditions to maximize KGaV and minimize η. The results demonstrated that at an inlet solvent temperature of 45 °C, solvent flow rate of 1.25 L/min, gas flow rate of 100 L/min, reboiler heat load 1.4 kW, MEA concentration 30 wt.%, and the CO2 concentration of 15 vol.%, η was at the minimum value of 3.88 MJ/kg CO2, while KGaV was at the maximum value of 4.59 kmol/m3.h.kPa.