1,914 research outputs found
Mathematical Development For Scaling-up Of Molecular Distillators: Strategy And Test With Recovering Carotenoids From Palm Oil
No full textStudies for recovering carotenoids from palm oil were developed in the Separation Process Development Laboratory (LDPS-FEQ-UNICAMP) through molecular distillation process (modeling, simulation and experiments) (Batistella and Maciel, 1998; Batistella et al., 2002). All the studies, however, have involved laboratory scale distillators, but due to the success of the developments, a lot of industrial applications are becoming possible. So, aiming to design molecular distillators with industrial dimensions, it is important to develop a methodology looking for an easy and fast form for scaling-up, which is the aim of this work. The procedure makes use of the knowledge obtained from the simulation and operational strategy developed for small scale equipment. Moreover, the nonideality condition of the vaplor phase was considered on the developments of the scale-up (Batistella et al., 2000), since this an important macrobehaviour to be considered. The obtained results show that the developed methodology is robust. © 2006 Elsevier B.V. All rights reserved.21C11131118Batistella, C.B., Moraes, E.B., Wolf Maciel, M.R., Experimental and Simulated Elimination Curves for recovering Carotenoids From Vegetal Oil Through Molecular Distillation Process (2003) Chemical Engineering Transactions, 3, pp. 569-574Batistella, C.B., Moraes, E.B., Wolf-Maciel, M.R., Maciel Filho, R., Molecular distillation Process for Recovering Biodiesel and Carotenoids from Palm Oil (2002) Applied Biochemistry and Biotechnology, 98, pp. 1149-1159Batistella, C.B., Wolf-Maciel, M.R., Maciel Filho, R., Rigorous modeling and simulation of molecular distillators: development of a simulator under conditions of non ideality of the vapor phase (2000) Computers and Chemical Engineering, 24, pp. 1309-1315Batistella, C.B., Moraes, E.B., Wolf-Maciel, M.B., Maciel Filho, R., Strategy and Mathematical Development for Scale-up of Molecular Distillators for Recovering Carotenoids from Palm Oil (2000) Computer-Aided Chemical Engineering, 8, pp. 505-510Batistella, C.B., Maciel, M.R.W., Recovery of Carotenoids from Palm Oil by Molecular Distillation (1998) Computers & Chemical Engineering, 22, pp. S53-S60Batistella, C.B., Maciel, M.R.W., Modeling, Simulation and Analysis of Molecular Distillators: Centrifugal and Falling Film (1996) Computers, Chemical Engineering, 20 (SUPPL), pp. S19-S24Bhandarkar, M., Ferron, J.R., Transport Process in Thin Liquid Films during High-Vacuum Distillation (1988) Ind. Eng. Chem. Soc., 27, pp. 1016-1024Batistella, C.B., Modelagem e simulação de destiladores moleculares de filme descendente e centrifugo (1996) Master Thesis-UNICAMP, Campinas-SP-BrazilBird, G.A., Direct Simulatioin and the Boltzmann Equation (1970) The Physics of Fluids, 13, pp. 2676-2681Borgnakke, C., Larsen, P.S., Statistical Collision Model for Monte Carlo Simulation of Polyatomic Gas Mixture (1975) J. Comput. Phys., 18, pp. 405-420Ferron, J.R., Evaporation and Condensation of Mixture under Rarefield Conditions (1986) Ind. Eng. Che. Fund., 25, pp. 594-602Langmuir, I., The vapor pressure of metallic tungsten (1913) Phys. Rev. Ser., 2 (2), pp. 329-34
Evaluation Of Optimization Techniques For An Extractive Alcoholic Fermentation Process
No full textThe mathematical optimization of a continuous alcoholic fermentation process combined with a flash column under vacuum was studied. The objective was to maximize % yield and productivity in the fermentor. The results using surface response analysis combined with modeling and simulation were compared withy those obtained when the problem was written as a nonlinear programming problem and was solved with a successive quadratic programming (SQP) technique. Two process models were evaluated when the process was optimized using the SQP technique. The first one is a deterministic model, whose kinetic parameters were experimentally determined as functions of the temperature, and the second is a statistical model obtained using the factorial design technique combined with simulation. Although the best result was the one obtained using the rigorous model, the values for productivity and % yield obtained using the simplified model are acceptable, and these models can be used when the development of a rigorous model is excessively difficult, slow, or expensive.1141-3485496Atala, D.I.P., Costa, A.C., Maciel, R., Maugeri, F., (2001) Appl. Biochem. Biotechnol., 91 (3), pp. 353-365Harada, L.H.P., Costa, A.C., Maciel Filho, R., (2002) Appl. Biochem. Biotechnol., 98 (1-3), pp. 1009-1024Silva, F.L.H., Rodrigues, M.I., Maugeri, F., (1999) J. Chem. Tech. Biotechnol., 74, pp. 176-182Andrietta, S.R., Maugeri, F., (1994) Adv. Bioprocess Eng., pp. 47-52Costa, A.C., Atala, D.I.P., Maciel Filho, R., Maugeri Filho, F., (2001) Process Biochem., 37 (2), pp. 125-137Costa, A.C., Meleiro, L.A.C., Maciel Filho, R., (2002) Process Biochem., 38 (5), pp. 743-750Monbouquette, H.G., (1987) Biotechnol Bioeng., 29, pp. 1075-1080Monbouquette, H.G., (1992) Biotechnol Bioeng., 39, pp. 498-503Kalil, S.J., Maugeri, F., Rodrigues, M.I., (2000) Process Biochem., 35, pp. 539-55
Hybrid Neural Modeling Of Bioprocesses Using Functional Link Networks
No full textThe objective of this work was to develop a model for an extractive ethanol fermentation in a simple and rapid way. This model must be sufficiently reliable to be used for posterior optimization and control studies. A hybrid neural model was developed, combining mass and energy balances with neural networks, which describe the process kinetics. To determine the best model, two structures of neural networks were compared: the functional link networks and the feedforward neural networks. The two structures are shown to describe well the process kinetics, and the advantages of using the functional link networks are discussed.98-10010091023Bhat, N., Mcavoy, T.J., (1990) Comp. Chem. Eng., 14, pp. 573-583Hussain, M.A., (1999) Artif. Intell. Eng., 13, pp. 55-68Psichogios, D.C., Ungar, L.H., (1992) AIChE J., 38, pp. 1499-1511Costa, A.C., Alves, T.L.M., Henriques, A.W.S., Maciel Filho, R., Lima, E.L., (1998) Comp. Chem. Eng., 22, pp. S859-S862Costa, A.C., Henriques, A.S.W., Alves, T.L.M., Maciel Filho, R., Lima, E.L., (1999) Braz. J. Chem. Eng., 16, pp. 53-63Zorzetto, L.F.M., Maciel Filho, R., Wolf-Maciel, M.R., (2000) Comp. Chem. Eng., 24, pp. 1355-1360Chen, S., Billings, S.A., (1992) Int. J. Control, 56, pp. 319-346Silva, F.L.H., Rodrigues, M.I., Maugeri, F., (1999) J. Chem. Tech. Biotechnol., 74, pp. 176-182Costa, A.C., Dechechi, E.C., Silva, F.L.H., Maugeri Filho, F., Maciel Filho, R., (2000) Appl. Biochem. Biotechnol., 84, pp. 577-593Andrietta, S.R., Maugeri, F., (1994) Advances in Bioprocess Engineering, pp. 47-52. , Galindo, E. and Ramirez, O. T., eds., Kluwer Academic, DordrechtAlves, J.G.L.F., (1996), MSc thesis, Faculdade de Engenharia de Alimentos, UNICAMP, Campinas, SP, BrazilRumelhart, D.E., Hinton, G.E., Williams, R.J., (1986) Nature, 323, pp. 533-536Henrique, H.M., Lima, E.L., Seborg, D.E., (2000) Chem. Eng. Sci., 55, pp. 5457-5469Henrique, H.M., (1999), MSc thesis, PEQ/COPPE/UFRJ, Rio de Janeiro, RJ, BrazilBillings, S.A., Chen, S., Korenberg, M.J., (1989) Int. J. Control, 49, pp. 2157-2189Cleran, Y., Thibault, J., Cheruy, A., Corrieu, G., (1991) J. Ferm. Bioeng., 71, pp. 356-36
True Boiling Point Extended Curve Of Vacuum Residue Through Molecular Distillation
No full textMolecular distillation is a separation process that explores high vacuum, operation at reduced temperatures, and low exposition of the material at the operating temperature. The term vacuum residue (heavy petroleum fractions) refers to the bottom of the vacuum distillation, which has an atmospheric equivalent temperature (AET) above 540°C. For the assay of the properties of petroleum and petroleum products, the use of the true boiling point (TBP) distillation analysis is accepted as a common practice; however, for heavy petroleum fractions, some difficulties appear for determination of TBP of these petroleum fractions. The objective of this work is to develop a new and a more appropriated method to extend the TBP curve to use it for characterizing vacuum residue of heavy petroleum. The falling film molecular distillator was used. The results showed that it is possible to extend the TBP curve through molecular distillation process with very good precision.2403/04/15265274Batistella, C.B., Wolf Maciel, M.R., Recovery of carotenoids from palm oil by molecular distillation (1998) Computers and Chemical Engineering, 22, pp. S53-S60Batistella, C.B., Wolf Maciel, M.R., Maciel Filho, R., Rigorous modeling and simulation of molecular distillators: Development of a simulator under conditions of non ideality of the vapor phase (2000) Computers and Chemical Engineering, 24, pp. S1309-S1315Batistella, C.B., Moraes, E.B., Maciel Filho, R., Wolf Maciel, M.R., Molecular distillation process for recovering biodiesel and carotenoids from palm oil (2002) Applied Biochemistry and Biotechnology, 98, pp. 1149-1159Batistella, C.B., Moraes, E.B., Maciel Filho, R., Wolf Maciel, M.R., Molecular distillation: Rigorous modeling and simulation for recovering vitamin e from vegetal oils (2002) Applied Biochemistry and Biotechnology, 98, pp. 1187-1206Lutisan, J., Micov, M., Cvengros, J., Feed temperature influence on the efficiency of a molecular evaporator (2000) Chem. Eng. J., 78, pp. 61-67Maciel Filho, R., Wolf Maciel, M.R., Sbaite, P., Vasconcelos, C.J.G., Batistella, C.B., Winter, A., Gomes, A., Kunert, R., (2005) Internal Report, , Laboratory of Separation Process Development (LDPS), Laboratory of Optimization, Design and Advanced Control (LOPCA), Faculty of Chemical Engineering, State University of Campinas (UNI-CAMP), BrazilMadhusudan, K.R., High-temperature simulated distillation CG analysis of petroleum resids and their products from catalytic upgrading over Co-Mo/Al2O 3 catalyst (1998) Catalysis Today, 43, pp. 187-202Moraes, E.B., Batistella, C.B., Torres Alvarez, M.E., Maciel Filho, R., Wolf Maciel, M.R., Evaluation of tocopherol recovery through simulation of molecular distillation process (2004) Applied Biochemistry and Biotechnology, 113-116, pp. 689-711Suelves, I., Islas, C.A., Milan, M., Galmies, C., Carter, J.F., Herod, A.A., Kandiyoti, R., Chromatographic separations enabling the structural characterization of heavy petroleum residues (2003) Fuel, 82, pp. 1-14Yang, G.E., Wang, R.A., The supercritical fluid extractive fractionation and the characterization of heavy oils and petroleum residua (1999) J. Petroleum Sci. Eng., 22, pp. 47-5
Evaluation Of Atmospheric And Vacuum Residues Using Molecular Distillation And Optimization
No full textThe term atmospheric residue describes the material at the bottom of the atmospheric distillation tower having a lower boiling point limit of about 340°C; the term vacuum residue (heavy petroleum fractions) refers to the bottom of the vacuum distillation, which has an atmospheric equivalent boiling point (AEBP) above 540°C. In this work, the objective is to evaluate the behavior of different kinds of Brazilian atmospheric and vacuum residues using molecular distillation. The Falling Film Molecular Distillator was used. For the results obtained through this process, a significant range of temperature can be explored avoiding the thermal decomposition of the material. So these results are very important to the refinery decisions and improvements. The Experimental Factorial Design results showed that the temperature has more influence on the process than the feed flow rate, when a higher percentage of distillate is required.2403/04/15275283Batistella, C.B., Wolf Maciel, M.R., Recovery of carotenoids from palm oil by molecular distillation (1998) Computers and Chemical Engineering, 22, pp. S53-S60Batistella, C.B., Wolf Maciel, M.R., Maciel Filho, R., Rigorous modeling and simulation of molecular distillators: Development of a simulator under conditions of non ideality of the vapor phase (2000) Computers and Chemical Engineering, 24, pp. 81309-81315Batistella, C.B., Moraes, E.B., Maciel Filho, R., Wolf Maciel, M.R., Molecular distillation process for recovering biodiesel and carotenoids from palm oil (2002) Applied Biochemistry and Biotechnology, 98, pp. 1149-1159Batistella, C.B., Moraes, E.B., Maciel Filho, R., Wolf Maciel, M.R., Molecular distillation: Rigorous modeling and simulation for recovering vitamin e from vegetal oils (2002) Applied Biochemistry and Biotechnology, 98, pp. 1187-1206Boss, E.A., Vasco De Toledo, E.C., Maciel Filho, R., Freeze drying process theoretical model and simulation (2002) Proceedings of the 51st Canadian Chemical Engineering Conference, , Halifax, Nova Scotia, CanadaCvengros, J., Lutisan, J., Micov, M., Feed temperature influence on the efficiency of molecular evaporator (2000) Chem. Eng. J., 78, pp. 61-67Kalil, S.J., Maugeri, F., Rodrigues, M.I., Response surface analysis and simulation as a tool for bioprocess design and optimization (2000) Process Biochemistry, 35, pp. 539-550Madhusudan, K.R., High-temperature simulated distillation CG analysis of petroleum resids and their products from catalytic upgrading over Co-Mo/Al2O 3 catalyst (1998) Catalysis Today, 43, pp. 187-202Medenica, M., Jancic, B., Ivanovic, D., Malenovic, A., Experimental design in reversed-phase high-performance liquid chromatography analysis of imatinib mesylate and its impurity (2004) J. Chromatogr. A, 1031, pp. 243-248Moraes, E.B., Batistella, C.B., Torres Alvarez, M.E., Maciel Filho, R., Wolf Maciel, M.R., Evaluation of tocopherol recovery through simulation of molecular distillation process (2004) Applied Biochemistry and Biotechnology, 113-116, pp. 689-711Vasco De Toledo, E.C., (1999), PhD thesis, UN1CAMP, LOPCA, Campinas-SP, Brazi
Computer Design Of A New Predictive Adaptive Controller Coupling Neural Networks And Kalman Filter
No full text[No abstract available]9C639644(1995), Addison-Wesley Publishing Company Inc., Lyngby, DenmarkEnder, L., Maciel Filho, R., (2000) Computers & Chemical Engeneering, 24, pp. 937-943Hecht-Nielsen, R., (1989) IEEE Int. Conf. On Neural Networks San Diego, pp. 593-605Goodwin, G.C., Sin, K.S., (1984) Adaptive filtering, Prediction and control, , Prentice-Hall, Englewood CliffsRodrigues, J.A.D., Maciel Filho, R., (1996) Chemical Engineering Science June, v51 (111), pp. 2859-2864. , ptBScheffer, R., Maciel Filho, R., Application of Neural Network and Other Learning Technologies in Process Engineering (2000) IEEE Int. Conf. On Neural Networks San Dieg
Development Of Intensified Hybrid Equipment: Reactive Molecular Distiller
No full textStudies indicate the existence of fields with so heavy oils that the simple rise and drainage from the base of the oil well to the surface seems to be impracticable in a first analysis, mainly in oil fields Off-Shore. New alternatives, with the objective of reducing the API degree and the viscosity of these oils, are being developed to enable upgrading of the extra-heavy oil. Processes to transform the oil involve thermal or catalytic cracking which imply in transforming large molecules into smaller ones; or simply physical treatments, as extraction of the heavy fractions of petroleum with supercritical fluid or dilution of the oil with fractions of the proper oil, generating the synthetic oil. In this work, a new equipment was developed: the reactive molecular distiller, in which happens simultaneously the coupling of the molecular distillation (high vacuum) and reactive conversion. It is very robust and can be characterized as a hybrid process and also as an intensified process. This equipment will promote the cracking and the conversion of the heavy fractions in lighter ones, which will be injected in the oil well making possible the withdrawal of the heavy oil from the well. Its most important characteristic is the immediate removal of the reaction products, dislocating the equilibrium in the direction of the desired products. The design, construction and studies of Reactive Molecular Distiller will be detailed in this work, which made possible the idealization of this intensified hybrid equipment. Copyright © 2009, AIDIC Servizi S.r.l.1716331638Batistella, C.B., Wolf Maciel, M.R., (1996) Purification of fine chemical products through Molecular Distillation, (96 0327-2). , FAPESP Project, ProcessBatistella, C.B.E., Wolf Maciel, M.R., Recovery of Carotenoids from Palm Oil by Molecular Distillation (1998) Comput. Chem. Eng, 22, pp. S53-S60Batistella, C.B., Maciel, M.R.W., Maciel Filho, R., Rigorous Modeling and Simulation of molecular distillations: Development of a simulator under conditions non ideality of the vapor phase (2000) Computers & Chemical Engineering, 24, pp. S1309-S1315Batistella, C.B., Wolf Maciel, M.R., (2001) Development of a Prototype of Centrifugal Molecular Distiller of High Performance, (1 10092-2). , FAPESP Project, ProcessBatistella, C.B., (2001) Design of molecular distillers: From conception of the process to the equipment detail in laboratory, pilot and industrial levels, (99 03550-2). , PhD FAPESP Project, ProcessBatistella, C.B.B., Wolf Maciel, M.R., Maciel Filho, R., 2006, Conceptual and preliminaru studies of reacitve molecular distillation, Internal Report, LOPCA/LDPS/UNICAMPErciyes, A.T., Ishikawa, H., Inuzuka, M., Hiraoka, S., Mori, H. E Yamada, I., 1987, Vaporization of Binary Liquid Mixtures from Surface at Reduced Pressure, I.Chem.E. Symposium Series 1, A359-A371Fregolente, L. V., Fregolente, P. B. L., Chicuta, A. M., Batistella, C. B., Maciel, Filho R., Wolf-Maciel, M. R., 2007, Effect of Operating Conditions on the Concentration of Monoglycerides Using Molecular Distillation, Chemical Engineering Research & Design 85, 11, 1524-1528Hickman, K.C.D., High-Vacuum Short-Path Distillation - A Review (1943) Chem. Rev, 34, pp. 51-106Maciel, R., Batistella, C.B., Sbaite, P., Winter, A., Vasconcelos, C.J.G., Maciel, M.R.W., Gomes, A., Kunert, R., Evaluation of atmospheric and vacuum residues using molecular distillation and optimization (2006) Petroleum Science And Technology, 24, pp. 275-283Moraes, E.B., Batistella, C.B., Torres Alvarez, M.E., Maciel Filho, R., Wolf Maciel, M.R., Evaluation of Tocopherol Recovery Through Simulation of Molecular Distillation Process (2004) Applied Biochemistry and Biotechnology, 113-116, pp. 689-711Noeres, C., Kenig, E. Y., Górak, A., 2003, Modelling of Reactive Separation Processes: Reactive Absorption and Reactive Distillation, Chem. Eng. and Process 42, 157-178(2007) Development of alternative technology: Reactive molecular distillation to transform (upgrading) the extra-heavy oil aiming to improve its, , PETROBRAS/FINEP, drainingSbaite, P., Batistella, C.B., Winter, A., Wolf Maciel, M.R., Maciel Filho, R., Gomes, A., Medina, L., Mathias Leite, L.F., Characterization Of Residue Stream Obtained Through Molecular Distillation Of Heavy Oil Petroleum (2005) The Seventh Italian Conference On Chemical And Process Engineering (Icheap7), , Giardini Di Naxos, Taormina, ItalyWinter, A., Batistella, C.B., Wolf Maciel, M.R., Maciel Filho, R., Lopes, M.S., Medina, L.C., A True Boiling Point Curve Through Molecular Distillation Using Framol Correlation, The eight (2007) International Conference On Chemical And Process Engineering (Icheap, 8. , Gulf of Naple
Molecular Distillation Process For Recovering Biodiesel And Carotenoids From Palm Oil
No full textCarotenoids and biodiesel from palm oil were recovered through a process involving neutralization and transesterification of palm oil followed by molecular distillation of the esters. The concentrated obtained contains more than 30,000 ppm of carotenoids and the distillate contains above 95% of light-colored biodiesel. The experimental data were obtained from falling film and centrifugal molecular distillators. It can be seen that each one has its own characteristics, which are a function of the operating temperatures and of the tendency of the material thermal decomposition. These characteristics can determine the type of equipment to be used, since they have different operating conditions. The experimental results were compared to the ones from simulations using the mathematical modeling for the falling film and centrifugal distillators developed.98-10011491159Krawczyk, T., (1996) INFORM, 7 (8), pp. 801-815Ooi, C.K., Choo, Y.M., Yap, S.C., Barison, Y., Ong, A.S.H., (1994) AOCS Press, 71, pp. 423-426Lenfant, C., Thyrion, F.C., (1996) Fondamental, 3 (3), pp. 220-226Batistella, C.B., Maciel, M.R.W., (1996) Computers Chemical Engineering, 20 (SUPPL.), pp. S19-S24Batistella, C.B., (1999), PhD thesis, UNICAMP, LDPS Campinas-SP, BrazilBatistella, C.B., Maciel, M.R.W., Maciel Filho, R., (2000) Computers Chemical Engineering, 24, pp. 1309-1315Batistella, C.B., Maciel, M.R.W., (1996) Application of Molecular Distillation on the Fine Chemical Separations, , 12th International Congress of Chemical and Process Engineering, Phaga, Czech RepublicBatistella, C.B., Maciel, M.R.W., (1997) Comparing Centrifugal Molecular Still Using Reflux and Cascade, , The First European Congress on Chemical Engineering, Florence, Ital
Optimal Fuzzy Control Of Batch Polymerization Reactors: Application To Pmma Production For Biomedical Purposes
No full textThe use of polymers in the biomedical field requires that such materials have a high degree of purity and specific properties, so that their production processes must be continuously monitored and manipulated. However, the control of polymerization reactors is considered a challenging task since such systems present non-linear and transient behaviour. In this study, in order to produce poly(methyl methacrylate) scaffolds for bone tissue engineering applications, an advanced control methodology based on fuzzy models and genetic algorithms (GA) was developed to control the temperature of a pilot-scale jacketed batch reactor in which methyl methacrylate polymerization takes place. Firstly, an optimal temperature trajectory was estimated using GA. Then, a fuzzy controller was designed and applied to adjust the reactor temperature to the instantaneous profile previously calculated. The proposed control algorithm was compared to conventional PID controller, proving to be robust and more suitable and reliable for such process type. © 2014 Elsevier B.V.33799804Atala, A., Lanza, R., Thomson, J., Nerem, R., (2011) Principles of Regenerative Medicine, , Academic Press, Elsevier, Oxford, UKAziz, N., Mujtaba, I., Optimal Operation Policies in Batch Reactors (2002) Chemical Engineering Journal, 85, pp. 313-325Carroll, D., (2001) Fortran Genetic Algorithm (GA) Driver, , www.cuaerospace.com/carroll/ga.html, Accessed on 20.07.2011Lima, N., Zuniga, L., Manenti, F., Maciel Filho, R., Embiruju, M., Wolf Maciel, M., Novel Two-Steps Optimal Control of a Batch Polymerization Reactors and Application to PMMA Production for the Fabrication of Artificial Bone Tissue (2013) Computer Aided Chemical Engineering, 32, pp. 163-168Lima, N., Zuniga, L., Maciel Filho, R., Wolf Maciel, M., Embiruçu, M., Grácio, F., Modeling and Predictive Control using Fuzzy Logic: Application for a Polymerization System (2010) AIChE Journal, 56, pp. 965-978Liu, Z., Kadar, R., Kind, M., Hydrodynamic Activation of the Batch-Polymerization of Mehtyl Methacrylate in a Taylor-Couette Reactor (2011) Macromolecular Symposia, Weinheim, Germany, 302, pp. 169-178Zuniga, L., Lima, N., Tovar, L., Manenti, F., Maciel Filho, R., Wolf Maciel, M., Embiruçu, M., Pilot-plant Simulation (2012) Experimental Campaign and Rigorous Modeling of a Batch MMA Polymerization Reactor for the Fabrication of Bone Tissue, Computer Aided Chemical Engineering, 30, pp. 1352-135
Baffled Tubular Reactor For Emulsion Polymerisation Of Styrene For High Performance Operation
No full textEmulsion Homopolymerization of styrene into tubular reactor with angle internal baffles as static mixer is presented in this work. It is assumed cylindrical one-dimensional model, fully developed laminar plug flow, and the model solved by finite volume method. Also it is considered the Smith-Ewart model to estimate the monomer conversion and Arrhenius chemical kinetics as laminar finite-rate model to compute chemical source. The objective is to model and simulate the behavior of baffles with reactor diameter effect in constant reaction temperature. The results have the performance of baffled reactor with desired properties of polystyrene.GILBERT, R.G., (1995) Emulsion Polymerization, A Mechanistic Approach, , Academic PressLondon;SCHOLTENS, C.A., (2002) CIP-DATA Library Technische Universiteit Eindhoven, Ter Verkrijging van de graad van DoctorBOCKHORN, H., Mathematical Modeling (1992) ULLMANN'S Encyclopedia of Industrial Chemistry, B1, p. 2GAO, J., PENLIDIS, A., Mat. Mod. and Comp. Simulator/database for Em. Polymerizations (2002) Prog. Polym. Sci, 27, pp. 403-535MACIEL FILHO, R., and DOMINGUES, A., ISCRE 12 (Inter. Symposium on Chemical Reaction Engineering), Turin, Itália, 1992MENDOZA MARIN, F.L.Modelagem, Simulação e Analise de Desempenho de Reatores Tubulares de Polimerização com Deflectores Angulares InternosTese de Doutorado, FEQ/UNICAMP, Campinas, 2004BATAILE, P., VAN, B.T., PHAM, Q.B., (1982) Journal of Polymer Science: Polymer Chemistry Edition, 20, pp. 795-810MENDOZA MARÍN, F.L., LONA, L.M.F., WOLF MACIEL, M.R., MACIEL FILHO, R., New Emulsion Polymerization Tubular Reactor with Internal Angular Baffles: Reaction Temperature Effect. Journal (2006) Journal of Applied Polymer Science, 100, pp. 2572-2581. , IssueMENDOZA MARÍN, F.L., LONA, L.M.F., WOLF MACIEL, M.R., MACIEL FILHO, R., Numerical Method of Finite Volume Method for New Emulsion Polymerization Tubular Reactor with Internal Angle Baffles. International Journal of Chemical Reaction Engineering (2006), submittedPATANKAR, S.V., (1980) Numerical Heat Transfer and Fluid Flow, , Hemisphere Publishing CorporationNew YorkVERSTEEG, H.K., MALALASEKERA, W., (1998) The Finite Volume Method, , 2nd Ed, Addison Wesley Longman Limited
- …
