Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/13400
Title: Modeling pulp fiber suspension rheology
Authors: Ventura, Carla 
Blanco, Angeles 
Negro, Carlos 
Ferreira, Paulo 
Garcia, Fernando 
Rasteiro, Maria 
Issue Date: Jul-2007
Publisher: Tappi Press
Citation: Tappi Journal. 6:7 (2007) 17-23
Serial title, monograph or event: Tappi Journal
Issue: 7
Abstract: Rheological properties of pulp suspensions play a very important role in the industry, mainly due to the consumption of energy for transporting pulp among the different parts of the paper mill. In this work, we determined the rheology of long- and short-fiber bleached kraft pulp suspensions by using a new rotational viscometer especially designed for their analysis. The experimental rheograms were adjusted to the Herschel-Bulkley model. We established the dependence of the rheological parameters on temperature, fiber length, and pulp consistency, to evaluate the relative influence of these factors and the corresponding interactions in the rheological parameters. In addition, we defined a mathematical model that enables the estimation of rheological parameters as a function of the different input factors. We validated this model with some preliminary experimental data. Application: The knowledge of pulp suspensions rheology is of utmost importance for the optimum design and operation of the majority of unit operations in the pulp and paper industry; accordingly, this study intends to clarify the rheological behaviour of pulp fiber suspensions, by modeling it as a function of consistency, temperature and fiber length
URI: http://hdl.handle.net/10316/13400
ISSN: 0734-1415
Rights: openAccess
Appears in Collections:FCTUC Eng.Química - Artigos em Revistas Internacionais

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