Simulación del pasteado de sarmientos de vid con sosa utilizando un diseño factorial de experimentos
- Jiménez Alcaide, Luis
- Angulo, V.
- Ramos Gómez, Enrique
- Torre Molina, María Jesús de la
- Pérez, Antonio
ISSN: 0001-9704
Year of publication: 2006
Volume: 63
Issue: 522
Pages: 106-115
Type: Article
More publications in: Afinidad: Revista de química teórica y aplicada
Abstract
This study investigates the influence of operating variables (temperature -140 to 180°C-, time -30 to 90 minutes-, caustic soda concentration -5 to 15%-, anthraquinone concentration -0 to 0.1%-, and liquid/solid ratio -4 to 8-) on pulp characteristics (yield, kappa index, viscosity, and drainage) and the resulting paper sheets (breaking length, elongation, bursting index, tear index, and whiteness), using a factorial experimental design. Second-degree polynomial equations are derived that relate each dependent variable to the operating variables and reproduce the former with errors of less than 7% to 15% in all cases. Analyzing the polynomial models found, it is deduced that it is convenient to operate at 170ºC, 15% soda, 0.1% anthraquinone and a liquid/solid ratio of 6:1 for 60 minutes, since the resistance properties of the paper sheets do not deviate too much from their optimal values, and instead, energy is saved for heating and immobilized capital for the facilities by operating at lower temperatures, times and "liquid/solid" ratios than the maximums considered in this work.