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Résumé

The realization of the wood gasification pilot unit of Clamecy, which will be operated under pressure needs that the physico-chemical behaviour of wood during pyrolysis and gasification is well known. A thermal balance (allowing to evaluate the kinetics of pyrolysis/gasification reactions), has been experimented under pyrolysis conditions and four determining parameters of the fluid bed reactor have been investigated: the fluidizing gas velocity, temperature, wood chips size, pressure. Results are presented, showing that the reaction of pyrolysis of wood chips (diameter > 5 mm) is mainly limited by the internal heat transfer in the biomass particle: this explains why the influence of parameters such as the fluidizing gas velocity and pressure is only significant in a limited range and that we rapidly reach a limit in the pyrolysis rate.

Informations supplémentaires

Auteurs: CHRYSOSTOME G, FRAMATOME, LE CREUSOT (FRANCE);LEMASLE J M FRAMATOME, LE CREUSOT (FRANCE), FRAMATOME, LE CREUSOT (FRANCE)
Références bibliographiques: EUR 10323 FR (1985), MF, 27 P., BFR 150, BLOW-UP COPY 200, EUROFFICE, LUXEMBOURG, POB 1003
Disponibilité: Can be ordered online
Numéro d'enregistrement: 1989124075000 / Dernière mise à jour le: 1987-01-01
Catégorie: publication
Langues disponibles: fr