کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1747647 1018238 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrogen production from high temperature steam catalytic gasification of bio-char
ترجمه فارسی عنوان
تولید هیدروژن از درجه حرارت بالا کاتالیزوری بخار زغال چوب
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


• H2 from the catalytic steam gasification of bio-char has been studied.
• Ni–MgO and Ni–Al2O3 catalysts produced significantly improved H2.
• Increase in gasification temperature from 750 to 950 °C increased H2 yield.
• Increase in steam flow rate from 6 to 15 ml h−1 increased H2 yield.
• Maximum H2 yield was 208.41 mmol g−1 of char.

Hydrogen production from the catalytic steam gasification of bio-char derived from the pyrolysis of sugar cane bagasse has been investigated in relation to gasification temperature up to 1050 °C, steam flow rate from 6 to 25 ml h−1 and type of Nickel catalyst. The catalysts used were Ni-dolomite, Ni–MgO and Ni–Al2O3, all with 10% nickel loading. The hydrogen yield in the absence of a catalyst at a gasification temperature of 950 °C was 100.97 mmol g−1 of bagasse char. However, the presence of the Ni–MgO and Ni–Al2O3 catalysts produced significantly improved hydrogen yields of 178.75 and 187.25 mmol g−1 of bagasse char respectively at 950 °C. The hydrogen yield from the char with the Ni-dolomite only showed a modest increase in hydrogen yield. The influence of gasification temperature showed that the optimum temperature to obtain the highest hydrogen yield was 950 °C. Increase in gasification temperature from 750 to 950 °C significantly increased hydrogen yield from 45.30 to 187.25 mmol g−1 of bagasse char at 950 °C, but was followed by a decrease in yield at 1050 °C. The influence of steam flow rate showed that with the increase in steam flow rate from 6 to 15 ml h−1 hydrogen yield was increased from 187.25 to 208.41 mmol g−1 of bagasse char. Further increase in steam flow rate resulted in a decrease in hydrogen yield.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Energy Institute - Volume 89, Issue 2, May 2016, Pages 222–230
نویسندگان
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