MOVING BOUNDARY IN NON-EQUILIBRIUM SIMPLE BATCH REACTIVE DISTILLATION IN A NON-IDEAL MIXTURE ISOBUTENE/METHANOL/MTBE

MOVING BOUNDARY IN NON-EQUILIBRIUM SIMPLE BATCH REACTIVE DISTILLATION IN A NON-IDEAL MIXTURE ISOBUTENE/METHANOL/MTBE

TEIXEIRA, J. C.; STRAGEVITCH, L.; SILVA, J. M. F.; SILVA, G. A.

Pôster:

This article is concerned with the dynamic behavior of a reactive batchdistillation process using the irreversible model. The composition trajectories inreactive residue curve map (RRCM) were calculated for a methanol/isobutene/MTBEmixture. The simulation results showed that: residue curves, including the simplereactive distillation boundaries (separatrices), were sensitive to the irreversible modelapplied, that the shape of residue curves depends on parameters Damköhler number(Da), molar flow rate at which the vapor is withdrawn (q) and interfacial area (A). Itwas observed the phenomenon of dynamic azeotropy: changes of position in stablenodes, saddles and separatrices. Applying the irreversible model it was possibleobserved different binary and ternary azeotropes and separatrices in non-ideal mixture.

This article is concerned with the dynamic behavior of a reactive batchdistillation process using the irreversible model. The composition trajectories inreactive residue curve map (RRCM) were calculated for a methanol/isobutene/MTBEmixture. The simulation results showed that: residue curves, including the simplereactive distillation boundaries (separatrices), were sensitive to the irreversible modelapplied, that the shape of residue curves depends on parameters Damköhler number(Da), molar flow rate at which the vapor is withdrawn (q) and interfacial area (A). Itwas observed the phenomenon of dynamic azeotropy: changes of position in stablenodes, saddles and separatrices. Applying the irreversible model it was possibleobserved different binary and ternary azeotropes and separatrices in non-ideal mixture.

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DOI: 10.5151/cobeq2018-PT.0693

Referências bibliográficas

• [1] AZEVEDO EG, ALVES AM, Engenharia de Processos de Separação: Destilação Descontinua. 1ª. ed. Lisboa: IST Press. 273 p. v. Único, 2009. (In Portuguese). DOHERTY MF, CALDAROLA GA, Design and synthesis of homogeneous azeotropic distillation. 3. The sequencing of columns for azeotropic and extractive distillations, Ind. Eng. Chem. Fund., v.24, p.474, 1985. FULLER EN, SCHETTLER PD, GIDDINGS JC, A new method for prediction of binary gas-phase diffusion coefficients, Ind. Eng. Chem., v.58, p.19, 1966. OLIVEIRA MMVF, "TAME: Cinética em reactor fechado e simulação da produção em contínuo." Tese de doutorado. UP. Lisboa, 2004. (In Portuguese). SILVA JMF, KNOECHELMANN A, ANTONIO JA, MEIRELLES, WOLF-MACIEL, M.R., LOPES, C. E. “On the Dynamics of Nonequilibrium Simple Batch Distillation Processes”. Chem. Eng. and Process, v.42, ISSUE-6, pp-475-485, 2003. TAYLOR R, KRISHNA R, Multicomponent Mass Transfer, Wiley, New York, 1993. VENIMADHAVAN G, BUZAD G, DOHERTY MF, MALONE MF, Effect of kinetics on residue curve maps for reactive distillation. AIChE journal, v.40, n.11, p.1814-1824, 1994.

Como citar:

TEIXEIRA, J. C.; STRAGEVITCH, L.; SILVA, J. M. F.; Genilson Antonio Da Silva; "MOVING BOUNDARY IN NON-EQUILIBRIUM SIMPLE BATCH REACTIVE DISTILLATION IN A NON-IDEAL MIXTURE ISOBUTENE/METHANOL/MTBE", p-2612-2615. In: . São Paulo: Blucher, 2018.
ISSN 23591757, DOI 10.5151/cobeq2018-PT.0693