کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6502588 | 46460 | 2011 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Zone-coated Rh-based monolithic catalyst for autothermal reforming of diesel
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
ⶠThe zone-coated monolithic catalyst, covered with the two washcoats Rh1.0Pt1.0-Ce10La5.0/δ-Al2O3 and Rh3.0-Ce10La10/δ-Al2O3, respectively, was found to be most active for ATR of commercial low-sulfur and Fischer-Tropsch diesel both during bench-scale and industrial-scale operations. ⶠXRD, H2-TPR and XPS analyses made on Rh1.0Pt1.0-Ce10La5.0/δ-Al2O3 and Rh3.0-Ce10La10/δ-Al2O3, showed the presence of dispersed lanthanum cerium oxides (CeO2), metallic platinum and rhodium oxides in the washcoats. ⶠXPS analysis made on the aged zoned catalyst showed clear evidence of initial partial oxidation followed by steam reforming occurring in situ. The analysis also showed the presence of C1-species in the first washcoat (Rh1.0Pt1.0-Ce10La5.0/δ-Al2O3) and severe sintering and migration of the active metal particles. These effects and mechanisms were less prominent in the second washcoat layer (Rh3.0-Ce10La10/δ-Al2O3) of the catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 101, Issues 3â4, 14 January 2011, Pages 226-238
Journal: Applied Catalysis B: Environmental - Volume 101, Issues 3â4, 14 January 2011, Pages 226-238
نویسندگان
Xanthias Karatzas, Jazaer Dawody, Ann Grant, Erik Elm Svensson, Lars J. Pettersson,