Fluidized-bed combustion of premixed lean methane-air mixtures over a copper-based catalyst (1-mm diameter) has been tested. Combustion experiments have been performed in a 100-mm externally heated fluidized-bed reactor. Effects of methane inlet concentration, gas superficial velocity, and bed height on reactor performance have been evaluated. 100% combustion efficiency could be achieved at suitable gas space-time values and no permanent bypass of methane in the bubble phase onsets under the experimental conditions tested, indicating efficient interphase mass transfer mechanisms between bubbles and emulsion phase. Kinetic parameters of the heterogeneous catalytic combustion have been determined by analyzing experimental results in the light of a simple theoretical framework.

Catalytic Combustion of Methane in a Fluidized Bed Reactor under Fuel-Lean Conditions

IAMARINO, Mario;
2002

Abstract

Fluidized-bed combustion of premixed lean methane-air mixtures over a copper-based catalyst (1-mm diameter) has been tested. Combustion experiments have been performed in a 100-mm externally heated fluidized-bed reactor. Effects of methane inlet concentration, gas superficial velocity, and bed height on reactor performance have been evaluated. 100% combustion efficiency could be achieved at suitable gas space-time values and no permanent bypass of methane in the bubble phase onsets under the experimental conditions tested, indicating efficient interphase mass transfer mechanisms between bubbles and emulsion phase. Kinetic parameters of the heterogeneous catalytic combustion have been determined by analyzing experimental results in the light of a simple theoretical framework.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11563/6966
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact