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The research focuses on developing a sustainable method for breaking down polyolefin waste into valuable chemicals using zeolite catalysts.

Mild‐Condition Upcycling of Polyolefins Enabled by Micropore Confinement in Zeolites

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The research focuses on developing a sustainable method for breaking down polyolefin waste into valuable chemicals using zeolite catalysts.
Utilized b-axis-shortened HZSM-5 nanosheet zeolites for catalysis.
Conducted reactions at 240 °C and 1 atm N2 without co-reactants.
Investigated the mechanistic cycle of isomerization, oligomerization, and scission within zeolite micropores.
Achieved 94.7% conversion of low-density polyethylene (LDPE).
Obtained 90.0% selectivity for C2–C6 olefins.
Demonstrated exceptional coking resistance and compatibility with various post-consumer plastics.

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Investigation reveals a co-reactant-free method for cracking polyolefins in zeolites, indicating a breakthrough in plastic recycling.

Lin et al. (2026) studied this question.

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