کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11000251 1423227 2018 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parametric study of hydrogen production via sorption enhanced steam methane reforming in a circulating fluidized bed riser
ترجمه فارسی عنوان
مطالعه پارامتری تولید هیدروژن با استفاده از جذب افزایش بخار ریخته گری متان در یک ردیف بستر سیال رطوبتی
کلمات کلیدی
ریخته گری افزایش بخار ریخته گری متان، دینامیک سیالات محاسباتی، تخت روان مایع، مدل جریان چند مرحلهای، راننده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Computational fluid dynamics was applied for sorption enhanced steam methane reforming (SESMR) operating in a circulating fluidized bed (CFB) riser. The solid mixtures consisted of Ni-based catalyst and CaO sorbent. The aim of study was to design a proper pilot-scale CFB riser which produced hydrogen (H2) with both high purity and high flux. The design parameters and the reaction parameters were examined with 2k full factorial design. The significances of each parameter were analyzed by analysis of variance. Using the optimum result, the highest H2 purity reached 98.58% in dry basis accompanied with the highest H2 flux of 0.301 kg/m2 s. The hydrodynamics of this optimum case showed that SESMR was nearly completed since 5.0 m height because axial and radial distributions of solid were well developed without excessive segregation between catalyst and sorbent. Thus, the H2 purity and the H2 flux approached fully developed within the riser height.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 192, 31 December 2018, Pages 1041-1057
نویسندگان
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