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Effect of water losses by evaporation and chemical reaction in an industrial slaker reactor BABT
Andreola,Ricardo; Vieira,Osvaldo; Santos,Onélia Aparecida Andreo dos; Jorge,Luiz Mario de Matos.
A dynamic model of the slaker reactor was developed and validated for Klabin Paraná Papéis causticizing system, responsable for white liquor generation used by the plant. The model considered water losses by evaporation and chemical reaction. The model showed a good agreement with the industrial plant measures of active alkali, total titratable alkali and temperature, without the need of adjustment of any parameter. The simulated results showed that the water consumption by the slaking reaction and evaporation exerted significant influence on the volumetric flow rate of limed liquor, which imposed a decrease of 4.6% in the amount of water in reactor outlet.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Slaker reactor; Modeling and simulation; White liquor.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000200019
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Modeling, simulation, and analysis of a reactor system for the generation of white liquor of a pulp and paper industry BABT
Andreola,Ricardo; Jorge,Regina Maria Matos; Santos,Onélia Aparecida Andreo dos; Jorge,Luiz Mario de Matos.
An industrial system for the production of white liquor of a pulp and paper industry, Klabin Paraná Papéis, formed by ten reactors was modeled, simulated, and analyzed. The developed model considered possible water losses by the evaporation and reaction, in addition to variations in the volumetric flow of lime mud across the reactors due to the composition variations. The model predictions agreed well with the process measurements at the plant and the results showed that the slaking reaction was nearly complete at the third causticizing reactor, while causticizing ends by the seventh reactor. Water loss due to slaking reaction and evaporation occurred more pronouncedly in the slaker reactor than in the final causticizing reactors; nevertheless, the lime...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Slaker reactor; Causticizing reactor; White liquor; Mathematical modeling; Simulation.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100024
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