کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4768576 1424958 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low temperature catalytic performance of coal-fired flue gas oxidation over Mn-Co-Ce-Ox
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Low temperature catalytic performance of coal-fired flue gas oxidation over Mn-Co-Ce-Ox
چکیده انگلیسی
A series of Mn-Co-Ce-Ox were prepared using co-precipitation method and tested for low temperature catalytic oxidation of NO and CO with O2. The best catalytic result was obtained by Mn0.2Co0.3Ce0.5 catalyst, which yielded 100% NO and CO conversion at 185 °C and 105 °C under space velocity at 60,000 h−1 respectively. XRD, BET, TEM, H2-TPR, XPS and Raman were used for the structure and redox properties investigation of mixed oxide. The catalyst characterization suggested that the high catalytic oxidation performance was attributed to dual redox cycles (Mn3+ + Co3+ ↔ Mn4+ + Co2+, Mn3+ + Ce4+ ↔ Mn4+ + Ce3+). In the SO2 and H2O poisoning test, 67% of NO converted to NO2 over the Mn0.3Co0.2Ce0.5 catalysts and recovered to 82% quickly, which displayed high resistance against H2O and SO2. The catalyst shows good stability between 24 h test.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 206, 15 October 2017, Pages 318-324
نویسندگان
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