Heterogeneous strong acid mesh catalyst for energy-efficient esterification
This innovative catalyst reduces energy consumption in esterification by operating at lower temperatures with high yields. It is recyclable, sustainable, and can be manufactured in various formats to enhance reaction rates.
Overview
The heterogeneous strong acid mesh catalyst offers a groundbreaking solution for the esterification process by significantly reducing energy requirements. Unlike conventional liquid phase catalysts, this novel catalyst operates efficiently at lower temperatures, achieving excellent ester yields. Its recyclability makes it a sustainable alternative, and the catalyst's adaptable manufacturing formats, such as fibrils and fabrics, allow for continuous flow esterification. Notably, the electrospun nanofiber-supported catalyst increases the surface area, resulting in faster esterification rates.
Technical specifications
- Catalyst composition: Chemically bound protonated amidrazone and amidoxime groups.
- Temperature and yield: Esterifies stearic acid with methanol at 65°C achieving a 94% yield in 2 hours, and maintains performance over 13 recycling cycles.
- Continuous flow performance: Esterifies oleic acid for over 100 hours at 65-70°C with a 79% yield at a flow rate of 1mL/min.
- Versatility: Successfully esterifies acrylic acid while preserving the double bond, achieving a 90% yield at 65°C in 2 hours.
- Formats: Manufacturable as fibrils, fabrics, and nanofibrils; electrospinning enhances surface area and reaction rates.
Technology readiness level
The catalyst is currently at Technology Readiness Level 3, having demonstrated efficacy in laboratory settings. Future validation will involve optimizing esterification processes using the fibrous mesh catalyst and exploring other catalyst formats for improved efficiency. Collaborative efforts with industrial partners are sought for scale-up and equipment provision.
About De Montfort University
De Montfort University is a comprehensive public university in Leicester that combines professional education with applied, industry‑relevant research for a large and diverse student body. Partners engage through co‑located laboratories and prototyping facilities, design studios, and on‑campus incubation, with contract research, consultancy, and bespoke training. The university supports work‑based learning and participates in Knowledge Transfer Partnerships to structure collaborations and accelerate delivery. Situated in the East Midlands, it offers convenient access to national transport links and a strong regional corridor for manufacturing and the creative economy. Research is supported by UKRI and Innovate UK, with a technology transfer office handling IP, licensing and research contracts.
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