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All Journal Catalyx : Journal of Process Chemistry and Technology
Ratna Wulandari Aji Saputri
Airlangga University
Chemistry

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Comparative Energy Analysis of Intensified Distillation Technologies for Sustainable Chemical Processing Ratna Wulandari Aji Saputri
Catalyx : Journal of Process Chemistry and Technology Vol. 2 No. 2 (2025): April 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v2i2.1329

Abstract

Distillation remains one of the most widely applied yet energy-intensive separation processes in the chemical industry. This study evaluates the potential of intensified distillation technologies specifically Dividing Wall Columns (DWC), Heat-Integrated Distillation Columns (HIDiC), Mechanical Vapor Recompression (MVR), Reactive Distillation with Heat Integration (RD + HI), and Hybrid Membrane Systems to reduce energy consumption and improve sustainability. A comprehensive methodology was applied using standardized performance metrics, comparative data analysis, and literature-backed energy efficiency benchmarks. Key findings show that HIDiC systems achieve the highest energy savings, up to 70%, followed by MVR and RD + HI, while DWC systems offer practical energy reductions between 15–44% with additional environmental benefits. Hybrid systems also contribute to energy efficiency, particularly in applications targeting water recovery and zero-liquid discharge. The discussion addresses trade-offs between energy savings and capital investment, the influence of technology readiness levels, and decision-making frameworks for selecting appropriate technologies based on energy demands, control complexity, and product purity. The study concludes that process intensification technologies provide a viable route toward sustainable industrial distillation. Their adoption should be driven by long-term operational savings, environmental compliance, and integration potential with advanced control systems. This work offers a structured basis for evaluating and implementing intensified distillation technologies across industrial contexts.
Integrating Safety Metrics and Regulatory Compliance for Green Solvent Selection in Sustainable Chemistry Sarifah Fauziah Syed Draman; Ratna Wulandari Aji Saputri; Ibtisam Ibtisam
Catalyx : Journal of Process Chemistry and Technology Vol. 2 No. 2 (2025): April 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v2i2.1330

Abstract

The shift toward sustainable practices in chemical manufacturing necessitates the replacement of traditional solvents with safer, environmentally benign alternatives. This study proposes a dual-criteria evaluation framework that integrates Safety, Health, and Environmental (SHE) scores with REACH regulatory compliance to support green solvent selection. Using a curated dataset of solvents characterized by physical and operational risk metrics, the methodology identifies high-performing green solvents suitable for sustainable process design. Quantitative assessments were performed based on SHE scores (scale 1–10), flash point, boiling point, and regulatory status. Correlation analysis revealed key relationships between solvent physical properties and SHE risk indicators. Recommended solvents were further evaluated for practical applications in extraction, synthesis, and purification processes. Solvents such as ethanol, water, and propylene carbonate demonstrated favorable SHE profiles and full REACH compliance. Results confirmed the utility of simple scoring systems in streamlining solvent substitution while ensuring safety and regulatory alignment. The framework offers a transparent, efficient method for solvent screening, serving as a foundation for broader sustainability tools like Process Mass Intensity (PMI), E-Factor, and Life Cycle Assessment (LCA). This model enhances industrial decision-making by enabling safer and more sustainable solvent use. Its adaptability supports both laboratory-scale and industrial applications, promoting compliance and long-term environmental stewardship.
Co-Authors Ibtisam Ibtisam Sarifah Fauziah Syed Draman