Regeneration of spent catalysts in oxy-combustion atmosphere
- Istituto di Ricerche sulla Combustione - CNR, P.le V. Tecchio 80, 80125 Napoli (Italy)
- Dipartimento di Ingegneria Chimica - Universita degli Studi di Napoli Federico II, P.le V. Tecchio 80, 80125 Napoli (Italy)
The feasibility of adopting an oxy-combustion stage to regenerate a spent catalyst proposed for methane thermo-catalytic decomposition has been investigated in a laboratory scale bubbling fluidized bed reactor operated at 800 C and different inlet oxygen concentrations. The efficiency of carbon oxy-combustion regeneration strategy has been evaluated on the basis of the efficiency of carbon removed from the catalyst and the performance of regenerated catalyst. The effect of multiple cycles of decomposition and regeneration steps has been also quantified. Experimental activity confirmed the possibility of producing a CO{sub 2} stream that can be finalized to a sequestration unit but also indicated the requirement of a good temperature control of catalytic particles. (author)
- OSTI ID:
- 21285667
- Journal Information:
- Experimental Thermal and Fluid Science, Vol. 34, Issue 3; Conference: Sixth Mediterranean Combustion Symposium, Corsica (France), 7-11 Jun 2009; Other Information: Elsevier Ltd. All rights reserved; ISSN 0894-1777
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON
METHANE
DECOMPOSITION
FLUIDIZED BED REACTORS
CATALYSTS
CARBON DIOXIDE
REGENERATION
OXYFUEL COMBUSTION PROCESS
TEMPERATURE CONTROL
EFFICIENCY
HYDROGEN PRODUCTION
TEMPERATURE RANGE 1000-4000 K
PERFORMANCE
FEASIBILITY STUDIES
Catalyst regeneration
Methane decomposition
Hydrogen production