The methanation of CO and CO[sub 2] over a Rh/Al[sub 2]O[sub 3] catalyst using a pulsed-flow microreactor
The dry reforming of methane represents an interesting route to utilising two of the cheapest known sources of carbon, CO[sub 2] and CH[sub 4], and may be a way of using CO[sub 2] produced in large scale industrial processes (selective oxidations for instance). At present the dry reforming reaction takes place at high temperatures (>973 K) and little is known about the mechanism. The reverse reaction, which we call dry methanation, is simpler and operates at lower temperatures. The authors decided to investigate the methanation reactions in order to gain information about the reverse reactions and, in particular, dry reforming. Hydrogenation of CO[sub 2] was also investigated, so that CO and CO[sub 2] could be compared for their respective methanation capabilities. Further Rh shows unique properties for CO hydrogenation when promoted with certain metal oxides for ethanol under such circumstances, this area of work having been recently reviewed. This study also ties in with a wider body of work at Liverpool which is investigating oxygenate synthesis of this type.
- OSTI ID:
- 5771865
- Journal Information:
- Journal of Catalysis; (United States), Journal Name: Journal of Catalysis; (United States) Vol. 143:1; ISSN 0021-9517; ISSN JCTLA5
- Country of Publication:
- United States
- Language:
- English
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ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
ELEMENTS
HETEROGENEOUS CATALYSIS
HYDROGENATION
METALS
METHANATION
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
RHODIUM
TRANSITION ELEMENTS