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. 2021 Apr 21;7(17):eabf8283. doi: 10.1126/sciadv.abf8283

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Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — (A) Depolymerization of LDPE over Pt/WO₃/ZrO₂ with various solid acid catalysts for 2 hours. (B) Product yields and degree of isomerization by carbon number for pure Pt/WO₃/ZrO₂ (black) and Pt/WO₃/ZrO₂ mixed with HY(30) in a 1:1 mass ratio (yellow). (C) Influence of HY zeolite acidity on product yields in LDPE hydrocracking in a 1:1 mixture with Pt/WO₃/ZrO₂ for 4 hours. (D) Effect of the HY(30) zeolite mass fraction in a mixture with Pt/WO₃/ZrO₂ on the selectivity of the main product groups and solid yield for 2 hours. (E) Reaction network highlighting the role of the HY zeolite in accelerating deep cracking.