Modeling, simulation, and analysis of a reactor system for the generation of white liquor of a pulp and paper industry

AUTOR(ES)

Andreola, Ricardo, Jorge, Regina Maria Matos, Santos, Onélia Aparecida Andreo dos, Jorge, Luiz Mario de Matos

FONTE

Brazilian Archives of Biology and Technology

DATA DE PUBLICAÇÃO

2011-02

RESUMO

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 mud flow remained nearly constant across the reactors.

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