Pressure Swing-Based Reactive Distillation and Dividing Wall Column for Improving Manufacture of Propylene Glycol Monomethyl Ether Acetate

Yus Donald Chaniago, Le Cao Nhien, Ahmad Naquash, Amjad Riaz, Gwang Sik Kim, Hankwon Lim and Moonyong Lee
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Yus Donald Chaniago: School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
Le Cao Nhien: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
Ahmad Naquash: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
Amjad Riaz: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
Gwang Sik Kim: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
Hankwon Lim: School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
Moonyong Lee: School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea

Energies, 2021, vol. 14, issue 21, 1-14

Abstract: Propylene glycol monomethyl ether acetate (PGMEA) is a commonly used solvent in the rapidly developing semiconductor industry. Ultra-high purity PGMEA is required for this ultra-precision industry and to satisfy the current strict waste management regulations. The traditional PGMEA production process consumes considerable energy and has a high production cost. In this study, a novel heat integrated and intensified design, which applies a dividing wall column, reactive distillation, and pressure swing techniques, was proposed for improving the energy efficiency and reducing the cost of PGMEA production. Heat integration was applied to maximize the heat recovery of the process. All processes were simulated using the commercial simulator Aspen Plus V11. The economic and environmental parameters of the process alternative were assessed for a fair comparison with the conventional process. The results showed that heat integration of the optimal pressure swing-based reactive distillation and dividing wall column processes could reduce the energy requirement and TAC by 29.5%, and 20.8%, respectively, compared to that of the optimal conventional process. The improved design provides a strong basis for achieving more sustainable PGMEA production.

Keywords: dividing-wall column; process intensification; pressure swing; reactive distillation; propylene glycol monomethyl ether acetate; optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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