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

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 proces...

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Bibliographic Details
Published in:Energies (Basel) 2021-11, Vol.14 (21), p.7416
Main Authors: Chaniago, Yus Donald, Nhien, Le Cao, Naquash, Ahmad, Riaz, Amjad, Kim, Gwang Sik, Lim, Hankwon, Lee, Moonyong
Format: Article
Language:English
Subjects:
Acetic acid
Capital costs
Carbon dioxide
Design improvements
Design specifications
Distillation
Dividing wall columns
dividing-wall column
Energy
Energy efficiency
Heat
Heat recovery
Industrial development
Integration
Iterative methods
Methods
Optimization
Pressure
pressure swing
process intensification
Process parameters
Propylene
propylene glycol monomethyl ether acetate
reactive distillation
Variables
Waste management
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Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en14217416