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 Reduction and oxidation kinetics of solid fuel chemical looping combustion over a core-shell structured nickel-based oxygen carrier: Application of a developed grain size distribution model
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله FUEL
شناسه DOI
پژوهشگران محمدهاشم صدق کردار (نفر اول) ، Davood Karami (نفر دوم) ، Nader Mahinpey (نفر سوم)

چکیده

In this study, the feasibility for chemical looping combustion (CLC) with a solid fuel was investigated using a novel synthesized nickel-based oxygen carrier (OC) supported by zirconia-shelled ?- alumina (35% NiO/Al2O3@ Zr) in a TGA. The nickel-based OC was impregnated over an alumina support which was coated by mesoporous zirconia shell via core-shell method. A grain size distribution model (GSDM) was developed based on the prediction of an initial grain size distribution considering “pore to sphere” factor to describe the kinetics of reduction and oxidation reactions in CLC process with solid fuel. The crystalline phase and physical properties of the synthesized OC was obtained using XRD, and BET/BJH methods. The predicted fractional conversion over time of 35% NiO/Al2O3@Zr in reduction and oxidation reactions obtained by the GSDM correlated closely with the experimental data