Predictions Of Values In A Causticizing Process
Autor: | R. Andreola, O. A. A. Santos, L. M. M, Jorge |
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Jazyk: | angličtina |
Rok vydání: | 2015 |
Předmět: | |
DOI: | 10.5281/zenodo.1109396 |
Popis: | An industrial system for the production of white liquor of a paper industry, Klabin Paraná Papéis, formed by ten reactors was modeled, simulated, and analyzed. The developed model considered possible water losses by evaporation and reaction, in addition to variations in volumetric flow of lime mud across the reactors due to composition variations. The model predictions agreed well with the process measurements at the plant and the results showed that the slaking reaction is nearly complete at the third causticizing reactor, while causticizing ends by the seventh reactor. Water loss due to slaking reaction and evaporation occurs more pronouncedly in the slaking reaction than in the final causticizing reactors; nevertheless, the lime mud flow remains nearly constant across the reactors. {"references":["BRACELPA - Associação Brasileira de Celulose e Papel (2009a).\nDesempenho do setor e projeções. , (acessed 10.02.10).","BRACELPA - Associação Brasileira de Celulose e Papel (2009b).\nRelatório Anual 2008/2009. , (acessed 10.02.10).","Soares, N. S.; Silva, M. L.; Lima, J. E.. (2007), A função de produção da\nindústria brasileira de celulose, em 2004. Rev. Árvore, 31 (3), 495-502.","Medeiros, R. G.; Silva Jr., F. G.; Báo, S. N.; Hanada, R.; Ferreira Filho,\nE. X. (2007), Application of Xylanases from Amazon Forest Fungal\nSpecies in Blenching of Eucalyptus Kraft Pulps. Braz. Arch. Biol.\nTechn., 50 (2), 231-238.","Vilkari, L.; Kantelinen, A.; Linko, M. (1994), Xylanases in blanching:\nfrom an idea to industry. FEMS Microbiol. Rev., 13, 335-355.","Gonçalves, E. C.; Silva, C. M.; Alves, L. J. L.; Gomide, J. L.; Carneiro,\nC. J. G. (2008), Sodium metaborate autocausticizing for eucalyptus\nkraft-antraquinone pulp production. O Papel, 4, 42-50.","Zeng, L., van Heiningen, A. R. P., A Mathematic Model for Direct\nCausticization of Na2CO3 with TiO2 in a Semi-batch Reactor. Can. J.\nChem. Eng., 80, 948-953, 2002.","Andrade, A. A.; Sartori, C. R. F.; Costa, V. L.; Freitas, M.; Rothen, T.;\nd´Angelo (2009), Implementation of advanced control and optimization\nin the causticizing process. O Papel, 70, 11, 66-77.","Lopes, R.; Fleet, V. R.; Figueiredo, D. (2008), Multivariable process\ncontrol applications for the pulp industry. O Papel, 69 (11), 75-86. [10] Silva, F. A.; Restrepo, A.; Rodrigues, L. A.; Gedraite, R. (2008),\nVariability reduction and efficiency increase in lime kilns using\nadvanced process control. O Papel, 69 (12), 75-85.\n[11] Malberg, B., Edwards, L. (2007), Dynamic modeling of pressurized\nperoxide stages with application to full bleach plant simulation. Tappi J.,\n6 (2), 9-17.\n[12] Barber, V. A., Scott, G. M. (2007), Dynamic modeling of a paper\nmachine, part I: programming and software development. Tappi J., 6 (1),\n11-17.\n[13] Aguiar, H. C.; Maciel Filho, R. (2001), Neuronal network and hybrid\nmodel: a discussion about different modeling techniques to predict\npulping degree with industrial data. Chem. Eng. Sci., 56, 565- 570.\n[14] Costa, A. O. S.; Biscaia Jr., E. C.; Lima, E. L. (2004), Mathematical\ndescription of the kraft recovery boiler furnace. Comput. Chem. Eng.,\n28, 633-641.\n[15] Sethuraman, J.; Krishnagopalan, J.; Krishnagopalan, G. (1995), Kinetic\nmodel for the causticizing reaction. Tappi J., 78 (1), 115-120.\n[16] Uronen, P.; Aurasmaa, H. (1979), Modelling and simulation of\ncausticization plant and lime kiln. Pulp Pap-Canada, 80 (6), 162-165.\n[17] Andrade, A. A.; Sartori, C. R. F.; Costa, V. L.; Freitas, M.; Rothen, T.;\nd´Angelo (2009), Implementation of advanced control and optimization\nin the causticizing process. O Papel, 70, 11, 66-77.\n[18] Swanda, A. P.; Seborg, D. E.; Holman, K. L.; Sweerus, N. (1997),\nDynamic models of the causticizing process. Tappi J., 80 (12), 123-134.\n[19] Holman, K. L.; Warrick, R. P.; Carlson, K. R. (1991), Recausticizing\nkinetics with mill liquor and lime. AIChE Forest Products Symposium\nProceedings, AIChE, NewYork, 23-31.\n[20] Andreola, R.; Vieira, O.; Santos, O. A. A.; Jorge, L. M. M. (2007),\nEffect of Water Losses by Evaporation and Chemical Reaction in an\nIndustrial Slaker Reactor. Braz. Arch. Biol. Techn., 50 (2), 339-347.\n[21] Andreola, R. (2001), Modeling, Simulation and Analysis of Klabin\nParaná Papéis Causticizing Reactor System. M.S. Thesis (in\nPortuguese), State University of Maringá, Maringá, Brazil.\n[22] Swanda, A. P. (1994), Process modeling and control system evaluation\nfor the pulp and paper recausticizing process. M.S. Thesis, University of\nCalifornia, USA.\n[23] Kahaner, D. Moler, C. Nash, S. (1989), Numerical methods and\nsoftware. Prentice Hall Series in Computational Mathematics, New\nJersey.\n[24] Lydersen, L. A. (1979), Fluid flow and heat transfer. John Wiley and\nSons, New York.\n[25] Hypponen, O. and Luuko A. (1984), The residence time distributions of\nliquor and lime mud flows in the recausticizing process. Tappi Journal,\n67:7, 46-48."]} |
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