کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9609849 | 46529 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The selective catalytic oxidation of NH3 over Fe-ZSM-5
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
The abatement of NH3 from waste streams has become an important environmental issue. Selective catalytic oxidation (SCO) of NH3 to N2 has emerged as a potential technology for taking care of NH3 slips and NH3 in waste streams. In this work, we describe the catalytic activity of Fe-zeolite catalysts prepared by incipient wetness technique, ion exchange and hydrothermal synthesis in the SCO of NH3 to N2 using a fixed bed flow reactor. Selective catalytic oxidation was carried out at 573-723Â K and 105Â Pa with gas hourly space velocities (GHSV) between 24Â 000 and 240Â 000Â hâ1. Results obtained showed that Fe-ZSM-5 catalysts prepared by incipient wetness technique were active for NH3 conversion (77-100%) and selectivity to N2 (65-100%). Fe-ASA and Fe-Beta showed good catalytic activity and selectivity, but their activity and selectivity were less than that of Fe-ZSM-5. The effects of water vapour, Fe loading, and activation method on the performance of these catalysts was also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 59, Issues 3â4, 8 August 2005, Pages 221-226
Journal: Applied Catalysis B: Environmental - Volume 59, Issues 3â4, 8 August 2005, Pages 221-226
نویسندگان
Aaron Akah, Colin Cundy, Arthur Garforth,