Improving the Stability of Ru-Doped Ni-Based Catalysts for Steam Methane Reforming during Daily Startup and Shutdown Operation
نویسندگان
چکیده
In this study, a Ru-doped Ni pellet-type catalyst was prepared to produce hydrogen via steam methane reforming (SMR). A small amount of Ru addition on the improved dispersion, thus affording higher catalytic activity than that catalyst. During daily startup and shutdown (DSS) operations, CH4 conversion catalysts significantly decreased because metal oxidation NiAl2O4, which is not reduced completely at 700 °C. Conversely, oxidized species in Ru–Ni can be under SMR conditions H2 spillover from surface onto Ni. Consequently, quantity improve stability during DSS operation.
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ژورنال
عنوان ژورنال: Catalysts
سال: 2023
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal13060949