کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
52859 46890 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalytic wet air oxidation of phenol aqueous solutions by 1% Ru/CeO2–Al2O3 catalysts prepared by different methods
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Catalytic wet air oxidation of phenol aqueous solutions by 1% Ru/CeO2–Al2O3 catalysts prepared by different methods
چکیده انگلیسی

The wet air oxidation of phenol aqueous solutions (5 g/L) has been studied in a trickle bed reactor (140 °C and 7 atm of oxygen pressure). The experiments were performed over several 1%Ru/5%CeO2–Al2O3 samples, prepared by different methods: impregnation, co-impregnation, co-precipitation and surfactant. Phenol conversion and chemical oxygen demand were evaluated. Results indicate that performance of the catalysts is influenced by the preparation method. Phenol conversions diminished with reaction time; deactivation was attributed to the deposition of carbonaceous solids on the surface and to the transformation of the support into boehmite phase. The selectivity toward CO2 production was, in all cases, nearly complete.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 424–428
نویسندگان
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