Modeling and simulation of an industrial slaker reactor

Authors

  • Ricardo Andreola UEM Author
  • Osvaldo Vieira Klabin Paraná Papéis Author
  • Onélia Aparecida Andreo dos Santos UEM Author
  • Luiz Mario de Matos Jorge Engenharia Quí­mica - UEM Author

DOI:

https://doi.org/10.4025/actascitechnol.v22i0.3051

Keywords:

caustificação, apagamento, modelagem

Abstract

White liquor used in cellulose digesters is produced by the causticizing process that employs a reactor system composed of two main parts: a mixing slaker reactor followed by causticizing reactors. At the slaker reactor, calcium hydroxide is produced, according to the reaction: CaO(s) + H2O(1) → Ca(OH) 2 (s). Simultaneously a causticizing reaction occurs with the formation of sodium hydroxide: Na2CO3 (aq) + Ca(OH) 2 (s) → 2 NaOH(aq) + CaCO3 (s). The latter takes place along several mixing reactors connected in series. An initial step towards building this dynamic mathematic model was taken and tested for the Klabin Paraná Papéis mill slaker reactor, established in Brazil, for modeling purposes. Simulations of the dynamic model at process conditions show that it was able to reproduce the main characteristics of the process. Close agreement with plant measurements was obtained by adjusting one kinetic parameter.

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Author Biography

  • Luiz Mario de Matos Jorge, Engenharia Quí­mica - UEM
    Possui mestrado em Engenharia Quí­mica pela Universidade de São Paulo (1992) e doutorado em Engenharia Quí­mica pela Universidade de São Paulo (1998) . Atualmente é PROFESSOR ASSOCIADO da Universidade Estadual de Maringá. Tem experiência na área de Engenharia Quí­mica , com ênfase em Processos Industriais de Engenharia Quí­mica. Atuando principalmente nos seguintes temas: REFORMA A VAPOR DE METANO, REATOR DE LEITO FIXO, TRANSFERENCIA DE CALOR.

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Published

2008-05-13

Issue

Vol. 22 (2000)

Section

Chemical Engineering

License

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How to Cite

Andreola, R., Vieira, O., Santos, O. A. A. dos, & Jorge, L. M. de M. (2008). Modeling and simulation of an industrial slaker reactor. Acta Scientiarum. Technology, 22, 1219-1224. https://doi.org/10.4025/actascitechnol.v22i0.3051

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