ArticleACS environmental Au2026
Depolymerization of Nylon‑6 over a Supported Ruthenium Catalyst to ε‑Caprolactam.
Article in ACS environmental Au, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Plastic recycling is a crucial process to establish a circular economy in the plastic industry and combat the environmental threat caused by plastic waste. Catalytic hydro-depolymerization, which typically uses molecular hydrogen and metal catalysts, is a promising approach to recycling plastic waste. Recent studies have mainly focused on polyolefin plastics, while heteroatom-containing plastics are also consumed in large quantities and are less studied. In this work, we present a novel heterogeneous catalytic process where nylon-6 is efficiently hydro-depolymerized to produce its monomer (ε-caprolactam). Using ruthenium supported on zirconia with activated hydrogen as an active and selective catalyst, we received 94% yield of ε-caprolactam, with only 3.4% hexamethylenimine as a byproduct, for the breakdown of nylon-6 at 350 °C and 30 bar H
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