Extractive Distillation of Ethanol/Water with 1-Butyl-3-Methylimidazolium Bromide Ionic Liquid as a Separating Agent: Process Simulation

  • Dhoni Hartanto Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang, 50229, Indonesia
  • Prima Astuti Handayani Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Widi Astuti Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Ratna Dewi Kusumaningtyas Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Yulian Candra Purwana Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Maftukhaturrizqiyah Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Reni Titis Wijayanti Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Durroti Zuhriah Wulansari Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Ria Wulansarie Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Irene Nindita Pradnya Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Danang Subarkah Hadikawuryan Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, Semarang 50229, Indonesia
  • Agung Ari Wibowo Department of Chemical Engineering, Politeknik Negeri Malang, Jl. Soekarno-Hatta No. 9, 64415, Indonesia
  • Riza Mazidu Sholihin RSUD Dr. Harjono, Pakunden, Ponorogo, 63419, Indonesia; Akafarma Sunan Giri Ponorogo, Jalan Batoro Katong, Ponorogo 63411, Indonesia
  • Achmad Chafidz Department of Chemical Engineering, Universitas Islam Indonesia, Yogyakarta, 55584, Indonesia; Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
  • Ianatul Khoiroh Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih, 43500 Selangor Darul Ehsan, Malaysia
Keywords: Dehydration, Ethanol, Extractive Distillation, [BMIM] [Br] Ionic Liquid, Process Simulation

Abstract

Ethanol purification has become of great interest recently because ethanol can be used as renewable energy, solvent in many industries, and for medicinal purposes. The separation of ethanol from water is challenging because the azeotropic point has appeared in this binary mixture. Extractive distillation technology is one of the most interesting methods to separate ethanol from water due to the competitiveness of its energy consumption and capital investment costs. Ionic liquids such as 1-butyl-3-methylimidazolium bromide [BMIM] [Br], categorized as a green solvent, produce a significant salting-out effect in the ethanol-water system. This makes ionic liquid a promising solvent in ethanol-water separation. This study simulated the extractive distillation of an ethanol-water system with 1-butyl-3-methylimidazolium bromide as a solvent. The simulation and sensitivity analysis were performed on the Aspen Plus Process Simulator to obtain the optimum configuration. The NRTL thermodynamic model was used in this study. The effects of the number of stages (NS), binary feed stage (BFS), entrainer feed stage (EFS), and reflux ratio (RR) on the ethanol concentration with minimum energy requirements were studied. The most optimal configurations to produce a high ethanol concentration with less energy are NS 28, BFS 22, EFS 4, and RR 1.5.

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Published
2023-12-31
How to Cite
Hartanto, D., Handayani, P. A., Astuti, W., Kusumaningtyas, R. D., Purwana, Y. C., Maftukhaturrizqiyah, Wijayanti, R. T., Wulansari, D. Z., Wulansarie, R., Pradnya, I. N., Hadikawuryan, D. S., Wibowo, A. A., Sholihin, R. M., Chafidz, A., & Khoiroh, I. (2023). Extractive Distillation of Ethanol/Water with 1-Butyl-3-Methylimidazolium Bromide Ionic Liquid as a Separating Agent: Process Simulation. ASEAN Journal of Chemical Engineering, 23(3), 270-281. Retrieved from https://jurnal.ugm.ac.id/v3/AJChE/article/view/11857
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Articles