کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
49561 46753 2016 4 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Size controlled ZSM-5 on the structure and performance of Fe catalyst in the selective catalytic reduction of NOx with NH3
ترجمه فارسی عنوان
ZSM-5 تحت کنترل اندازه بر روی ساختار و عملکرد کاتالیزور Fe در کاهش کاتالیزوری انتخابی NOx با NH3
کلمات کلیدی
Fe / ZSM-5؛ NH3-SCR؛ اثر اندازه؛ Fe3 + جدا شده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• ZSM-5 with different morphologies and sizes were prepared.
• Fe/ZSM-5 catalyst showed above 90% NOx conversion at 280–650 °C.
• ZSM-5 with cauliflower-like morphology promoted the distribution of isolated Fe3 +.
• The isolated Fe3 + in Fe/ZSM-5 catalyst was the main active sites in NH3-SCR.

Fe/ZSM-5 catalysts with various morphologies and sizes were prepared and the catalytic properties in NH3-SCR were also investigated. The different ZSM-5 morphologies and sizes indeed influence the dispersion of Fe species. The Fe/ZSM-5 catalyst, which was cauliflower-like morphology of ZSM-5 support aggregated by small nano-crystal zeolite with crystallite size of about 50 nm, exhibited the best NH3-SCR activity (T≥ 90% = 280–650 °C). This specific morphology and size of ZSM-5 support were considered to benefit the distribution of isolated Fe3 + species, which was proved to be the main active sites in SCR reaction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 80, 5 May 2016, Pages 20–23
نویسندگان
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