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Showing 1–6 of 6 results
Advanced filters: Author: Jason S. DesVeaux Clear advanced filters

  • Oxidative catalytic depolymerization of polystyrene (PS) can produce benzoic acid, but the annual consumption of benzoic acid is ~40 times lower than PS, so benzoic acid should be converted to higher-volume chemicals for the process to be viable. Here, the authors report a hybrid chemical and biological process that uses PS as feedstock for production of adipic acid, a high-volume co-monomer for nylon 6,6, via benzoic acid.

    • Hyunjin Moon
    • Jason S. DesVeaux
    • Gregg T. Beckham
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-14

  • The textile industry’s reliance on synthetic dyes is an important source of greenhouse gas emissions. Here the authors describe a process involving sustainable solvents that allows the extraction, purification, and reuse of dyes, as well as the recycling of dye-free fabrics.

    • Minjung Lee
    • Yuanzhe Liang
    • Katrina M. Knauer
    Research
    Nature Sustainability
    Volume: 9, P: 96-107

  • Enzymatic recycling is an emerging technology to circularize the ubiquitous polyester poly(ethylene terephthalate). Here the authors evaluate and implement multiple process changes to improve the scalability and viability of this recycling technology. Process modeling demonstrates that these changes could enable cost competitiveness and greatly reduce overall life cycle impacts.

    • Natasha P. Murphy
    • Stephen H. Dempsey
    • Gregg T. Beckham
    Research
    Nature Chemical Engineering
    Volume: 2, P: 309-320

  • Net-zero bioplastics are possible when combined with high recycling rates. This study presents a mixed polyester recycling process integrated with monomer separation and purification for both fossil- and bio-based plastics. Techno-economic and life cycle analyses confirm its environmental and commercial advantages, advancing the path toward circular, low-emission polyester plastics.

    • Julia B. Curley
    • Yuanzhe Liang
    • Katrina M. Knauer
    Research
    Nature Chemical Engineering
    Volume: 2, P: 568-580

  • Acetic acid efficiently depolymerizes aliphatic and aromatic epoxy-amine thermosets used in carbon fibre-reinforced polymers (CFRPs) to yield recoverable monomers and pristine carbon fibres, which, based on process modelling, techno-economic analysis and life cycle assessment, could enable industrial recycling of CFRPs.

    • Ciaran W. Lahive
    • Stephen H. Dempsey
    • Gregg T. Beckham
    Research
    Nature
    Volume: 642, P: 605-612

  • This study reports on biologically sourced polymuconate polymers with weakened C–C backbone bonds, designed for closed-loop chemical recycling to monomers. Synthesized via free-radical polymerization, these materials achieve tunable mechanical properties comparable to those of commercial plastics. A techno-economic analysis shows that recycling significantly reduces costs and environmental impacts, enhancing the competitiveness of these polymers in the sustainable plastics market.

    • Qixuan Hu
    • Xuyi Luo
    • Letian Dou
    Research
    Nature Chemical Engineering
    Volume: 2, P: 130-141