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Study and modeling of the desintegration kinetics of coated paper
Vilaseca Morera, Fabiola; Puig Serramitja, Josep; Pèlach Serra, Maria Àngels; El Mansouri, Nour-Eddine; Alcalà Vilavella, Manel; Roux, Jean-Claude; Mutjé Pujol, Pere
The disintegration of recovered paper is the first operation in the preparation of recycled pulp. It is known that the defibering process follows a first order kinetics from which it is possible to obtain the disintegration kinetic constant (KD) by means of different ways. The disintegration constant can be obtained from the Somerville index results (%lsv and from the dissipated energy per volume unit (Ss). The %slv is related to the quantity of non-defibrated paper, as a measure of the non-disintegrated fiber residual (percentage of flakes), which is expressed in disintegration time units. In this work, disintegration kinetics from recycled coated paper has been evaluated, working at 20 revise rotor speed and for different fiber consistency (6, 8, 10, 12 and 14%). The results showed that the values of experimental disintegration kinetic constant, Ko, through the analysis of Somerville index, as function of time. Increased, the disintegration time was drastically reduced. The calculation of the disintegration kinetic constant (modelled Ko), extracted from the Rayleigh’s dissipation function, showed a good correlation with the experimental values using the evolution of the Somerville index or with the dissipated energy
Paper vell -- Reciclatge
Waste paper -- Recycling
Cinètica química
Chemical kinetics
Paper -- Deterioració
Paper -- Deterioration
Pasta de paper
Estucament del paper
Wood-pulp
Paper coating
Tots els drets reservats
Artículo
info:eu-repo/semantics/publishedVersion
North Carolina State University. Department of Wood and Paper Science, College of Natural Resources
         

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Vilaseca Morera, Fabiola; Puig Serramitja, Josep; Pèlach Serra, Maria Àngels; El Mansouri, Nour-Eddine; Alcalà Vilavella, Manel; Roux, Jean-Claude; Mutjé Pujol, Pere
Vilaseca Morera, Fabiola; Puig Serramitja, Josep; Pèlach Serra, Maria Àngels; El Mansouri, Nour-Eddine; Alcalà Vilavella, Manel; Roux, Jean-Claude; Mutjé Pujol, Pere
Vilaseca Morera, Fabiola; Puig Serramitja, Josep; Pèlach Serra, Maria Àngels; El Mansouri, Nour-Eddine; Alcalà Vilavella, Manuel; Roux, Jean-Claude; Mutjé Pujol, Pere
Vilaseca Morera, Fabiola; Puig, Josep; Pèlach Serra, Maria Àngels; El Mansouri, Nour-Eddine; Alcalà Vilavella, Manuel; Roux, Jean-Claude; Mutjé Pujol, Pere
Pèlach Serra, Maria Àngels; Delgado Aguilar, Marc; Alcalà Vilavella, Manel; Puig Serramitja, Josep; Blanco, Angeles; Mutjé Pujol, Pere