Advances and Challenges in Low‐Temperature Upcycling of Waste Polyolefins via Tandem Catalysis

Zhang, Wei; Kim, Sungmin; Sarazen, Michele L.; He, Mingyuan; Chen, Jingguang G.; Lercher, Johannes A.

doi:10.1002/anie.202500559

Advances and Challenges in Low‐Temperature Upcycling of Waste Polyolefins via Tandem Catalysis

Journal Article · Thu Mar 13 00:00:00 EDT 2025 · Angewandte Chemie (International Edition)

DOI:https://doi.org/10.1002/anie.202500559· OSTI ID:2536800

Zhang, Wei ^[1]; ^[2]; Sarazen, Michele L. ^[3]; He, Mingyuan ^[1]; Chen, Jingguang G. ^[4]; ^[5]

East China Normal Univ. (ECNU), Shanghai (China); Institute of Eco-Chongming, Shanghai (China)
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Princeton Univ., NJ (United States)
Columbia Univ., New York, NY (United States)
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Technische Univ. Munchen, Garching (Germany)

Polyolefin waste is the largest polymer waste stream that could potentially serve as an advantageous hydrocarbon feedstock. Upcycling polyolefins poses significant challenges due to their inherent kinetic and thermodynamic stability. Traditional methods, such as thermal and catalytic cracking, are straightforward but require temperatures exceeding 400 °C for complete conversion because of thermodynamic constraints. We summarize and critically compare recent advances in upgrading spent polyolefins and model reactants via kinetic (and thermodynamic) coupling of the endothermic C─C bond cleavage of polyolefins with exothermic reactions including hydrogenation, hydrogenolysis, metathesis, cyclization, oxidation, and alkylation. These approaches enable complete conversion to desired products at low temperatures (<300 °C). The goal is to identify challenges and possible pathways for catalytic conversions that minimize energy and carbon footprints.

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Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)

Grant/Contract Number:: AC05-76RL01830

OSTI ID:: 2536800

Alternate ID(s):: OSTI ID: 2998790

Report Number(s):: PNNL-SA--209141

Journal Information:: Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 22 Vol. 64; ISSN 1521-3773; ISSN 1433-7851

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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