کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7733331 | 1497952 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The production of pure pressurised hydrogen by the reformer-steam iron process in a fixed bed reactor system
ترجمه فارسی عنوان
تولید هیدروژن فشار خالص توسط فرایند بخار اصلاح کننده بخار در یک سیستم ریکاوری ثابت
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کلمات کلیدی
روند پردازش بخار فرآیند، تولید شیمیایی حلقه شیمیایی، تولید هیدروژن تحت فشار برای سلول های سوختی، پردازش سوخت،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
In this paper a fixed bed chemical looping process for the decentralised production of pure pressurised hydrogen for fuel cell applications is described. CH4 is converted to a syngas using conventional steam reforming. The syngas is directly used for the reduction of an iron based oxygen carrier. A consecutive oxidation step using steam leads to the formation of pure pressurised hydrogen. A thermodynamic analysis was performed in order to investigate feasible conditions for the syngas generation and reduction step. Experiments using pure hydrogen as well as an artificial syngas mixture showed the feasibility of the process for the production of pressurised hydrogen. A stable hydrogen production at a pressure of 8-11Â bar(g) was achieved and only minor impurities of 700Â ppm of carbon dioxide but no signs of carbon monoxide were detected in the produced hydrogen. Although the active surface decreased from 7.5Â m2Â gâ1 to 0.9Â m2Â gâ1 only moderate losses of reactivity were measured in the fixed bed reactor. Thermogravimetric analysis showed a loss of 9% of reactive material over nine cycles, presumably due to sintering effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 280, 15 April 2015, Pages 57-65
Journal: Journal of Power Sources - Volume 280, 15 April 2015, Pages 57-65
نویسندگان
Stephan Nestl, Gernot Voitic, Michael Lammer, Bernhard Marius, Julian Wagner, Viktor Hacker,