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- Title
Comparison of Ni and Co Catalysts for Ethanol Steam Reforming in a Fluidized Bed Reactor.
- Authors
Gayubo, Ana; Vicente, Jorge; Ereña, Javier; Montero, Carolina; Olazar, Martin; Bilbao, Javier
- Abstract
A study has been conducted on the steam reforming of ethanol on different Ni and Co catalysts synthesized on several supports (SiO, ZnO and α-AlO undoped and doped with LaO) in a fluidized bed reactor (to ensure bed isothermicity). The results allow analysing the effect of both temperature (in the 300-700 °C range) and the type of metal and support on the reaction indices [ethanol conversion and yields and selectivities of H and by-products (CO, CO, CH and CHO)]. Catalyst stability has been specifically studied by comparing the evolution with time on stream of the reaction indices at 500 °C (minimum CO production) and at 700 °C (insignificant deactivation by coke). A slightly higher H yield is obtained on Co catalysts than on Ni ones in the 500-600 °C range. Nevertheless, the highest H yield at 700 °C is obtained with a highly stable performance on Ni catalysts over α-AlO support. Graphical Abstract: [Figure not available: see fulltext.]
- Subjects
FLUIDIZED bed reactors; ETHANOL; SILICON oxide; ISOTHERMAL surfaces (Thermodynamics); PERFORMANCE evaluation; CHEMICAL stability
- Publication
Catalysis Letters, 2014, Vol 144, Issue 7, p1134
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-014-1265-x