Effect of water losses by evaporation and chemical reaction in an industrial slaker reactor

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.

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Bibliographic Details
Main Authors: Andreola,Ricardo, Vieira,Osvaldo, Santos,Onélia Aparecida Andreo dos, Jorge,Luiz Mario de Matos
Format: Digital revista
Language:English
Published: Instituto de Tecnologia do Paraná - Tecpar 2007
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000200019
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Summary: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.