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Simulation of bleaching of soda pulp from Hesperaloe funifera by polynomial and neural fuzzy models

Scientific research and essays, 2012-10, Vol.7 (40), p.3357-3367

Attribution-NonCommercial-NoDerivs 3.0 Spain info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/3.0/es/ ;ISSN: 1992-2248 ;EISSN: 1992-2248 ;DOI: 10.5897/SRE11.1749

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  • Title:
    Simulation of bleaching of soda pulp from Hesperaloe funifera by polynomial and neural fuzzy models
  • Author: Rosal, Antonio ; Valls, Cristina ; Roncero, Mariacute a B ; Rodriacute guez, Alej ; ro
  • Subjects: Blanqueig ; Blanqueig de pastes ; Enginyeria paperera ; Pasta paperera ; Pulping ; Wood-pulp-Bleaching ; Àrees temàtiques de la UPC
  • Is Part Of: Scientific research and essays, 2012-10, Vol.7 (40), p.3357-3367
  • Description: Influence of variables [soda, (0.5 to 3.0%), hydrogen peroxide (1.0 to 10.0%) and time (1 to 5 h)] in the bleaching of soda pulp of Hesperaloe funifera, on the properties of bleached pulps, was studied. Polynomial and neural fuzzy models had reproduced the results of Kappa number, brightness and viscosity of the pulps with errors less than 10 and 15%, respectively. By simulating the bleaching process of pulp H. funifera, with the polynomial and neural fuzzy models, the optimal values of operating variables can be found, so that the properties of bleached pulps differ little from their best values and instead will save chemical reagents, energy and plant size, operating with lower values of operating variables. Thus, by application of polynomial models, it was found that operating with a soda concentration of 0.5%, a hydrogen peroxide concentration of 5.5% and for a processing time of 3 h, it was possible to get a pulp with a brightness of 65.9% and a viscosity of 587 ml/g.
  • Language: English
  • Identifier: ISSN: 1992-2248
    EISSN: 1992-2248
    DOI: 10.5897/SRE11.1749
  • Source: Recercat
    Academic Journals
    GFMER Free Medical Journals
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