Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/3771
Title: Heterogeneous studies in pulping of wood: Modelling mass transfer of alkali
Authors: Simão, João P. F. 
Egas, Ana P. V. 
Carvalho, M. Graça 
Baptista, Cristina M. S. G. 
Castro, José Almiro A. M. 
Keywords: Heterogeneous system; Mass transfer model; Effective diffusion coefficient; Kraft pulping; Eucalyptus globulus
Issue Date: 2008
Citation: Chemical Engineering Journal. 139:3 (2008) 615-621
Abstract: In this paper a heterogeneous lumped parameter model is proposed to describe the mass transfer of effective alkali during the kraft pulping of wood. This model, based on the spatial mean of the concentration profile of effective alkali along the chip thickness, enables the estimation of the effective diffusion coefficient that characterizes the internal resistance to mass transfer and the contribution of the external resistance to mass transfer which has often been neglected.
URI: http://hdl.handle.net/10316/3771
DOI: 10.1016/j.cej.2011.03.046
Rights: openAccess
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais

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