Data di Pubblicazione:
1999
Abstract:
Thermal effects on methane steam reforming process were analyzed, in a Pd-Ag (23wt%) membrane reactor as a function
of several parameters, such as temperature, reactant and sweep-gas flow rate, and reactant molar ratio. Heat transfer
from the oven was very important for the outlet methane conversion, which also depends on the temperature profile
along the reactor. In particular, when the reactant flow rate was high the conversion degree decreased because the energy
supplied was not sufficient to maintain the temperature in the reactor. A non-isothermal mathematical model was presented
which reproduced the experimental data.
On a analyst les effets thermiques sur la vapeur de methane, dans un reacteur a membrane Pd-Ag (23wt%) en fonction
de plusieurs parametres, tels la temperature, le debit du reactif et du gaz de balayage et le taux molaire du reactif. Le
transfert de matiere venant du four joue un grand rde dans la conversion du methane a la sortie, qui depend egalement
du profil de temperature dans le reacteur. En particulier, lorsque le debit du reactif est eleve, le degre de conversion
diminue parce que l'energie apportee n'est pas suffisante pour maintenir la temperature dam le reacteur. Un modele
mathematique non isotherme est presente pour reproduire les donnees experimentales.
Tipologia CRIS:
01.01 Articolo in rivista
Keywords:
methane steam reforming; membrane reactor; non-isothermal behaviour; Pd-Ag membrane.
Elenco autori:
Drioli, Enrico; Barbieri, Giuseppe
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