Continuous process for pigment degradation in TPU recycling using immobilized chloroperoxidase
A novel continuous flow process utilizing chloroperoxidase immobilized on a metal-organic framework for efficient degradation of pigments in TPU recycling, achieving over 90% degradation in under 15 minutes. Seeking partners for scalability and optimization.
Overview
This innovative solution centers around a continuous flow process that leverages chloroperoxidase (CPO) immobilized on a metal-organic framework (MOF) to degrade pigments in thermoplastic polyurethane (TPU) recycling. The process achieves over 90% degradation of pigments, specifically azo dyes, within 15 minutes, with most breaking down in under 10 minutes. The degradation products are environmentally benign, making this a sustainable option for recycling or upcycling TPU materials.
Technical specifications
The technology involves the immobilization of CPO onto a MOF, creating a heterogeneous catalyst system that is packed into a continuous flow reactor bed. This setup enables efficient pigment degradation during TPU processing. The method benefits from whole-cell catalysis and the immobilization of CPO, allowing for effective packed bed configurations. The process is designed to handle flow chemistry and scalability challenges, with the potential for in vivo enzyme immobilization directly on the MOF to streamline production.
Technology readiness level
Currently, this technology is at TRL 3, indicating that it has been validated in a laboratory environment. The next steps involve scaling up the biocatalyst system and optimizing flow chemistry parameters for larger-scale TPU recycling applications.
About Lewis University
Lewis University is a mid-sized private, Lasallian Catholic institution near Chicago that offers a comprehensive blend of liberal and professional education. Its Romeoville campus sits beside Lewis University Airport, giving companies convenient access to aviation training spaces and enabling applied learning and workforce development. Industry engagement includes defined career pathways with employers, for‑credit internships supported by Career Services, and employer tuition‑discount partnerships that strengthen talent pipelines. Research and scholarship are supported by competitive federal, state, and corporate funding, with proposal development and post‑award services coordinated by the Office of Sponsored Programs.
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