Catalytic Liquefaction Platform for Converting Pectin Residues into Bio-Based Polyols
A catalytic biomass liquefaction technology that transforms pectin production side streams into reactive bio-based polyols and thermoplastic intermediates. The mild acid-catalyzed process converts wet, heterogeneous residual biomass into hydroxyl-rich oligomers suitable for coatings, adhesives, polyurethane polyols, composite binders, and 3D-printing resins, maximizing carbon utilization while avoiding energy-intensive drying and fractionation.
Overview
This catalytic biomass liquefaction platform converts pectin production side streams into reactive bio-based polyols and thermoplastic intermediates. Rather than separating individual biomass components, the wet residual feedstock is transformed through mild acid-catalyzed liquefaction in renewable polyhydric alcohols. The result is a hydroxyl-rich oligomeric product with structural similarities to technical lignins that can serve as a precursor for coatings, adhesives, polyurethane polyols, composite binders, or 3D-printing resins. The platform minimizes waste, tolerates heterogeneous feedstocks, maximizes carbon utilization, and eliminates the need for energy-intensive drying and fractionation steps.
Technical specifications
Key features:
- Mild acid-catalyzed liquefaction performed in renewable polyhydric alcohols, preserving reactive hydroxyl functionality
- Whole-biomass conversion that captures residual biopolymers left after pectin extraction
- Feedstock flexibility demonstrated with wood, leaves, and coffee waste, indicating tolerance for variable composition
- Hydroxyl-rich oligomeric output compatible with existing polymer value chains, including polyurethane and coating formulations
- Avoidance of energy-intensive drying and fractionation, supporting circular manufacturing and reducing disposal costs
- Scalable catalytic conversion into thermoplastic and coating materials with demonstrated mechanical performance
Technology readiness level
The liquefaction approach has been validated across multiple biomass types, including wood, leaves, and coffee waste, producing thermoplastic and coating materials with excellent mechanical performance. Next steps include establishing a robust liquefaction process for representative pectin side streams, evaluating feedstock variability tolerance, and performing comprehensive molecular and physicochemical characterization using spectroscopic, chromatographic, and thermal analyses. Proof-of-concept formulations in coatings, adhesives, and polyurethane systems will be benchmarked against commercial references, with deliverables including performance metrics, reproducibility data, and a scalability assessment for integration into industrial value chains.
About University of Twente
The University of Twente is a mid-sized public technical university in Enschede with an engineering-driven, entrepreneurial culture. Industry collaborates through co-located labs and shared facilities, including open-access nanofabrication, prototyping spaces, and campus living labs. A research and technology park adjacent to campus connects companies to faculty and student talent, while a dedicated technology transfer office supports IP, licensing, and startup formation. The university’s integration with regional hospitals enables clinical translation, and its Dutch–German border location offers direct access to the Eastern Netherlands high‑tech systems cluster and North Rhine–Westphalia’s manufacturing base. Research is backed by competitive funding from the Dutch Research Council and ministries, alongside European programs such as Horizon Europe and the ERC.
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