Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energy
The reduction efficiency is an important variable during the black liquor burning process in the Kraft recovery boiler. This variable value is obtained by slow experimental routines and the delay of this measure disturbs the pulp and paper industry customary control. This paper describes an optimization approach for the reduction efficiency determination in the furnace bottom of the recovery boiler based on the minimization of the Gibbs free energy. The industrial data used in this study were directly obtained from CENIBRA's data acquisition system. The resulting approach is able to predict the steady state behavior of the chemical composition of the furnace recovery boiler, - especially the reduction efficiency when different operational conditions are used. This result confirms the potential of this approach in the analysis of the daily operation of the recovery boiler.
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Brazilian Society of Chemical Engineering
2008
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oai:scielo:S0104-663220080003000172008-09-02Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energySilva,W. L.Ribeiro,J. C. T.Costa Jr,E. F.daCosta,A. O. S.da Black liquor recovery boiler Gibbs free energy Combustion, Modeling Optimization The reduction efficiency is an important variable during the black liquor burning process in the Kraft recovery boiler. This variable value is obtained by slow experimental routines and the delay of this measure disturbs the pulp and paper industry customary control. This paper describes an optimization approach for the reduction efficiency determination in the furnace bottom of the recovery boiler based on the minimization of the Gibbs free energy. The industrial data used in this study were directly obtained from CENIBRA's data acquisition system. The resulting approach is able to predict the steady state behavior of the chemical composition of the furnace recovery boiler, - especially the reduction efficiency when different operational conditions are used. This result confirms the potential of this approach in the analysis of the daily operation of the recovery boiler.info:eu-repo/semantics/openAccessBrazilian Society of Chemical EngineeringBrazilian Journal of Chemical Engineering v.25 n.3 20082008-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000300017en10.1590/S0104-66322008000300017 |
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Silva,W. L. Ribeiro,J. C. T. Costa Jr,E. F.da Costa,A. O. S.da |
| spellingShingle |
Silva,W. L. Ribeiro,J. C. T. Costa Jr,E. F.da Costa,A. O. S.da Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energy |
| author_facet |
Silva,W. L. Ribeiro,J. C. T. Costa Jr,E. F.da Costa,A. O. S.da |
| author_sort |
Silva,W. L. |
| title |
Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energy |
| title_short |
Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energy |
| title_full |
Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energy |
| title_fullStr |
Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energy |
| title_full_unstemmed |
Reduction efficiency prediction of CENIBRA's recovery boiler by direct minimization of gibbs free energy |
| title_sort |
reduction efficiency prediction of cenibra's recovery boiler by direct minimization of gibbs free energy |
| description |
The reduction efficiency is an important variable during the black liquor burning process in the Kraft recovery boiler. This variable value is obtained by slow experimental routines and the delay of this measure disturbs the pulp and paper industry customary control. This paper describes an optimization approach for the reduction efficiency determination in the furnace bottom of the recovery boiler based on the minimization of the Gibbs free energy. The industrial data used in this study were directly obtained from CENIBRA's data acquisition system. The resulting approach is able to predict the steady state behavior of the chemical composition of the furnace recovery boiler, - especially the reduction efficiency when different operational conditions are used. This result confirms the potential of this approach in the analysis of the daily operation of the recovery boiler. |
| publisher |
Brazilian Society of Chemical Engineering |
| publishDate |
2008 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000300017 |
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