کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
50503 46797 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly efficient oxidation of soot over RuOx/SiO2 in fluidized bed reactor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Highly efficient oxidation of soot over RuOx/SiO2 in fluidized bed reactor
چکیده انگلیسی


• RuOx/SiO2 showed the highest activity for soot oxidation in fluidized bed reactor.
• The adsorbed NO on RuOx was easily dissociated to adsorbed N and O. The adsorbed O could further oxidize soot.
• NOx decomposition was inhibited by the consumption of adsorbed NO and NO2 in soot oxidation.
• High activity in fluidized bed was due to its high mass transferring of active species.

The potentialities of RuOx/SiO2 for soot oxidation have been investigated using a temperature programmed reaction technique. Among the noble metal catalysts, RuOx/SiO2 exhibited the highest activities in fluidized bed reactor. The temperature at 50% soot conversion over RuOx/SiO2 in the presence of NO and O2 is about 120 K lower than that only in the presence of O2. It has been identified that NO was adsorbed on the surface of RuOx in the presence of O2. The adsorbed NO was highly active for oxidizing soot, which can be attributed to the high mass transferring of the active species in the reaction systems. The mechanism of NO dissociation is also discussed in soot oxidation.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 38, 5 August 2013, Pages 40–44
نویسندگان
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