INVESTIGADORES
MARIANI Nestor Javier
artículos
Título:
Evaluating the effectiveness factor from a 1D approximation fitted at high Thiele modulus: spanning commercial pellet shapes with linear kinetics
Autor/es:
NESTOR JAVIER MARIANI; CLARISA MOCCIARO; SERGIO DARÍO KEEGAN; OSVALDO MIGUEL MARTÍNEZ; GUILLERMO FERNANDO BARRETO
Revista:
CHEMICAL ENGINEERING SCIENCE
Editorial:
Elsevier Science Ltd.
Referencias:
Año: 2009 p. 2762 - 2766
ISSN:
0009-2509
Resumen:
In the present contribution a one dimensional model (1D model) is employed to accountfor the effect of pellet shape in the solution of diffusion-catalytic reaction problems. The 1D modelfree parameter (s) is fitted so as to match the second term of the series for the effective reactionrate at fast kinetic conditions. The performance of the model was evaluated for a large collection ofpellets available commercially, covering almost all the main shapes offered by catalystmanufacturers. For isothermal linear kinetics the effectiveness factors calculated by the 1D modeldiffer at most by 3% from those of the actual 3D pellets.
