Circular management of single-use polyolefins via hydrocracking over zeolite-based catalysts

Azam, Usman ORCID: https://orcid.org/0000-0002-9589-8313, Umer, Muhammad, Graça, Inês and Afzal, Waheed 2026. Circular management of single-use polyolefins via hydrocracking over zeolite-based catalysts. Thomas, S., Ameduri, B. and Thomas, M.G., eds. Polymer Circularity in Sustainable Energy, [Circular management of single-use polyolefins via hydrocracking over zeolite-based catalysts]. Elsevier, pp. 289-318. (10.1016/b978-0-443-27739-9.00001-3)

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Abstract

The extensive production and accumulation of plastic has resulted in a pressing environmental and economic challenge that necessitates the advancement of effective recycling methods. Catalytic hydrocracking of plastic waste over zeolites and zeo-based catalysts has emerged as a viable method to collectively tackle the waste problem and generate high-quality fuels. However, the activity and selectivity of zeolites toward valuable products are associated with their optimized physicochemical properties and reaction conditions. Herein, we provide an overview of the effects of acidic and textural properties of both microporous and hierarchical zeolites toward the hydrocracking of polyolefins. Similarly, a brief discussion on the role of metal-loaded zeolites is included for the synthesis of bifunctional catalysts. A short summary on the optimization of reaction parameters, including reaction temperature, time, effect of H2 pressure, and role of polymer type, is provided. Overall, this study provides an insight into the development of zeolite-based catalysts for efficient hydrocracking of plastic waste to fuels and other valuable products.

Item Type:	Book Section
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Publisher:	Elsevier
ISBN:	9780443277399
Last Modified:	29 Sep 2026 10:45
URI:	https://orca.cardiff.ac.uk/id/eprint/189877

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