Evaluation of mechanical vapor recompression in the reactive distillation of the N-butanol esterification process

Authors

DOI:

https://doi.org/10.33448/rsd-v10i12.20345

Keywords:

N-butyl acetate; Esterification; Reactive distillation; Vapor recompression; Simulation.

Abstract

The process of producing esters is usually performed through esterification in a reactor followed by a distillation column to separate the products. However, this design limits the reagent conversion. Reactive distillation is an alternative to get around this issue as it allows greater reagent conversions in reactions limited by chemical equilibrium. It is one of the most famous process intensification techniques. On the other hand, mechanical vapor recompression has been used to recycle waste heat to improve efficiency of conventional distillation columns. In this context, this work evaluated the inclusion of a mechanical vapor recompression system in a reactive distillation process to obtain n-butyl acetate via n-butanol esterification with acetic acid. Systems with and without recompression were simulated in an Aspen Plus™ environment. The addition of recompression resulted in a reduction of 33.65% in the annual cost of the process, while not significantly affecting the purity of the desired product and the reagents’ conversion. From an environmental point of view, the mechanical vapor recompression system adoption resulted in a 12.69% reduction in CO2 emissions, contributing positively to meeting the requirements of the environmental regulations.

References

Andrade, M. D. (2012). Modelagem Cinética da Esterificação de Sec-Butanol com Ácido Acético e Estudo de Monitoramente em Linha da Reação com Espectroscopia de Infravermelho Próximo. Escola Politécnica da Universidade de São Paulo.

Arthur A Backhaus. (1921). Continuous Processes for the Manufacture of Esters (Patent No. 1,403,224).

Arthur A Backhaus. (1922). Apparatus for Producing High Grade Esters (Patent No. 1,454,462).

Arthur A Backhaus. (1923). Process for Producing High Grade Esters (Patent No. 1,454,462).

Cho, M., Jo, S., Kim, G., & Han, M. (2014). Entrainer-Enhanced Reactive Distillation for the Production of Butyl Acetate. Industrial & Engineering Chemistry Research, 53(19), 8095–8105. https://doi.org/10.1021/ie403049z

G. JanHarmsen. (2007). Reactive distillation: The front-runner of industrial process intensification: A full review of commercial applications, research, scale-up, design and operation. Chemical Engineering and Processing: Process Intensification, 46(9), 774–780.

Gao, X., Chen, J., Ma, Z., & Yang, L. (2014). Simulation and Optimization of Distillation Processes for Separating a Close-Boiling Mixture of n-Butanol and Isobutanol. Industrial & Engineering Chemistry Research, 53(37), 14440–14445. https://doi.org/10.1021/ie502695x

Gao, X., Chen, J., Tan, J., Wang, Y., Ma, Z., & Yang, L. (2015). Application of Mechanical Vapor Recompression Heat Pump to Double-Effect Distillation for Separating N,N-Dimethylacetamide/Water Mixture. Industrial & Engineering Chemistry Research, 54(12), 3200–3204. https://doi.org/10.1021/ie504664h

Giwa, A., & Giwa, S. O. (2017). Steady-State Modelling and Simulation of a Reactive Distillation Process for n-Butyl Acetate Production Using CHEMCAD. International Journal of Engineering Research in Africa, 29, 70–80. https://doi.org/10.4028/www.scientific.net/JERA.29.70

M.Gadalla; Ž.Olujić; R.Smith. (2006). Estimation and reduction of CO2 emissions from crude oil distillation units. Energy, 31, 2398–2408.

Muthia, R., Reijneveld, A. G. T., van der Ham, A. G. J., ten Kate, A. J. B., Bargeman, G., Kersten, S. R. A., & Kiss, A. A. (2018). Novel method for mapping the applicability of reactive distillation. Chemical Engineering and Processing - Process Intensification, 128, 263–275. https://doi.org/10.1016/J.CEP.2018.04.001

PeterMizsey, O. (1995). Rigorous Investigation of Heat Pump Assisted Distillation. Heat Recovery Systems and CHP, 3, 241–247.

Steinigeweg, S., & Gmehling, J. (2002). n-Butyl Acetate Synthesis via Reactive Distillation: Thermodynamic Aspects, Reaction Kinetics, Pilot-Plant Experiments, and Simulation Studies. Industrial & Engineering Chemistry Research, 41(22), 5483–5490. https://doi.org/10.1021/ie020179h

Tian, H., Huang, Z., Qiu, T., Wang, X., & Wu, Y. (2012). Reactive Distillation for Producing n-Butyl Acetate: Experiment and Simulation. Chinese Journal of Chemical Engineering, 20(5), 980–987. https://doi.org/10.1016/S1004-9541(12)60426-1

Venimadhavan, G., F. Malone, M., & F. Doherty, M. (1999). A Novel Distillate Policy for Batch Reactive Distillation with Application to the Production of Butyl Acetate. Industrial & Engineering Chemistry Research, 38(3), 714–722. https://doi.org/10.1021/ie9804273

Vivek Kumar; Bandaru Kiran; Amiya K. Jana; Amar Nath Samanta. (2012). A Novel Multistage Vapor Recompression Reactive Distillation System with Intermediate Reboilers. AIChE Journal, 59, 761–771.

Downloads

Published

19/09/2021

How to Cite

RODRIGUES, D. F. de S. .; DAMASCENO, A. S. .; RAMOS, W. B. .; BRITO, R. P. .; BRITO, K. D. . Evaluation of mechanical vapor recompression in the reactive distillation of the N-butanol esterification process. Research, Society and Development, [S. l.], v. 10, n. 12, p. e243101220345, 2021. DOI: 10.33448/rsd-v10i12.20345. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/20345. Acesso em: 21 feb. 2024.

Issue

Section

Engineerings