05 مهر 1400

محمدهاشم صدق کردار

مرتبه علمی:
نشانی: دانشکده مهندسی نفت، گاز و پتروشیمی - گروه مهندسی شیمی
تحصیلات: مهندسی شیمی
تلفن:
دانشکده: دانشکده مهندسی نفت، گاز و پتروشیمی

مشخصات پژوهش

عنوان Thermodynamic and kinetic study of CO2 capture with calcium based sorbents: experiments and modeling
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
شناسه DOI
پژوهشگران Ehsan Mostafavi (نفر اول) ، محمدهاشم صدق کردار (نفر دوم) ، Nader Mahinpey (نفر سوم)

چکیده

The steam gasification of biomass in the presence of calcium oxide offers a viable route for the dual purpose of hydrogen production and carbon dioxide (CO2) capture. Although previous studies have dealt with experimental and intrinsic rate constants of carbonation and calcination of calcium looping cycles, the data has not been compared with thermodynamic or kinetic simulation. In this study, the thermodynamic and kinetic simulation of the CO2 capture process using two calcium-based sorbents (i.e., Imasco dolomite and Cadomin limestone) have been studied using Aspen Plus software. The thermodynamic simulation was able to predict the overall trend of the CO2 adsorption on dolomite and limestone. However, a kinetic model was also applied to achieve a more accurate analysis. The results show good agreement between the modeling and the experimental data obtained using a thermogravimetric analyzer (TGA). A shift in the reaction mechanism was observed with respect to temperature. The experimental data and kinetic model illustrated that the maximum conversion occurred at 650 °C.