کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1270611 1497502 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermodynamic modeling and assessment of a combined coal gasification and alkaline water electrolysis system for hydrogen production
ترجمه فارسی عنوان
مدلسازی ترمودینامیکی و ارزیابی ترکیب گاز زغال سنگ و گاز الکترولیز قلیایی برای تولید هیدروژن
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی


• Coal gasification and alkaline electrolyzer are used to produce hydrogen.
• The system performance is evaluated through thermodynamic modeling and simulation.
• The effect of some parameters on the hydrogen production rate is investigated.
• Energy and exergy efficiencies of this system are ∼58% and ∼55%, respectively.
• The weight ratio of the hydrogen yielded to the coal fed to the system is ∼0.126.

The performance of a clean energy system that combines the coal gasification and alkaline water electrolyzer concepts to produce hydrogen is evaluated through thermodynamic modeling and simulations. A parametric study is conducted to determine the effect of water ratio in coal slurry, gasifier temperature, effectiveness of carbon dioxide removal, and hydrogen recovery efficiency of the pressure swing adsorption unit on the system hydrogen production. The exergy efficiency and exergy destruction in each system component are also evaluated. The results reveal that the overall energy and exergy efficiencies of this system are ∼58% and ∼55%, respectively. The weight ratio of the hydrogen yielded to the coal fed to this system is ∼0.126. Although this system produces hydrogen from coal, the greenhouse gases emitted from this system are fairly low.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 7, 25 February 2014, Pages 3061–3071
نویسندگان
, , , ,