کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6642644 461162 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
CO preferential oxidation in H2-rich stream over a CuO/CeO2 catalyst with high H2O and CO2 tolerance
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
CO preferential oxidation in H2-rich stream over a CuO/CeO2 catalyst with high H2O and CO2 tolerance
چکیده انگلیسی
The CuO/CeO2 catalysts are prepared by an improved incipient wetness impregnation method with ammonia as chelating agent for CO preferential oxidation (PROX). The effects of CuO loadings of the catalysts and the presence of H2O and CO2 in the reaction stream on the catalytic performance are investigated. The CuO/CeO2 catalyst with 10.0 wt.% CuO loading has high activity and stability for the CO-PROX. In the long-term stability test under the realistic reaction condition with 10% H2O and 15% CO2 in the reactant stream, 100% CO conversion can maintain for 1600 h at 140-150 °C with 85-75% selectivity. The catalysts are characterized by means of XRD, H2-TPR, and CO-TPR. The results show that the high activity of the CuO/CeO2 catalyst is closely related to the fine-dispersed CuO species strongly interacting with CeO2 support.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 104, February 2013, Pages 41-45
نویسندگان
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