کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5147318 | 1497358 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrogen production from methanol steam reforming over Al2O3- and ZrO2-modified CuOZnOGa2O3 catalysts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
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چکیده انگلیسی
New CuOZnOxGa2O3-Al2O3 and CuOZnOxGa2O3-ZrO2 (CuZnxGaAl, CuZnxGaZr) catalysts with different Ga contents were prepared and tested in the methanol steam reforming reaction (MSR) under stoichiometric methanol/water = 1 mol ratio (S/C = 1) at 523 K and 548 K. Addition of Al2O3 or ZrO2 components increases the surface area and modifies the reducibility of CuOZnOGa2O3 catalysts; the CuZnxGaZr systems showed the highest reducibility. The performance of CuOZnOGa2O3-based catalysts for MSR is improved by the presence of ZrO2 promoter. CuZn3GaZr catalyst showed a high performance for MSR at 523 K and 548 K under stoichiometric conditions (S/C = 1). The catalyst resulted highly stable and selective for H2 production, with formation of less than 0.3% mol of CO at 523 K. CO is produced as a secondary by-product through the reverse water gas shift reaction. The new catalysts show high resistance to carbon formation at the temperatures analyzed under stoichiometric conditions (S/C = 1).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 19, 11 May 2017, Pages 13704-13711
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 19, 11 May 2017, Pages 13704-13711
نویسندگان
Xianyun Liu, Jamil Toyir, Pilar RamÃrez de la Piscina, NarcÃs Homs,