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Brazilian Archives of Biology and Technology

versão impressa ISSN 1516-8913versão On-line ISSN 1678-4324


ANDREOLA, Ricardo; VIEIRA, Osvaldo; SANTOS, Onélia Aparecida Andreo dos  e  JORGE, Luiz Mario de Matos. Effect of water losses by evaporation and chemical reaction in an industrial slaker reactor. Braz. arch. biol. technol. [online]. 2007, vol.50, n.2, pp.339-347. ISSN 1678-4324.

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.

Palavras-chave : Slaker reactor; modeling and simulation; white liquor.

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