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- W4281775211 endingPage "121582" @default.
- W4281775211 startingPage "121582" @default.
- W4281775211 abstract "The character of coke is typically regarded as a “deactivator” in zeolite catalysis. We report the interdependence of coke nature and location with its true character in the mechanisms of ethylene oligomerization: a model zeolite catalyzed transformation involved in many sustainable processes. We prepared, characterized, and tested ZSM-5 zeolites of different diffusion paths and acidities, using polymeric-, organic-template, or template-free strategies and various Si/Al ratios. The results indicate that coke can improve the selectivity/yield of higher olefins and jet-fuel aliphatics, and this positive effect is better than modifying the number of acid sites. The molecular-level nature of these coke species is elucidated using high-resolution mass spectrometry. The “enhancer” character of the coke can be better exploited in polymeric templated (hierarchical) ZSM-5 zeolite because mesopores retain coke without critically affecting accessibility or causing deactivation. Furthermore, this catalyst is stable for at least 74 h on stream and in multiple reaction-regeneration cycles." @default.
- W4281775211 created "2022-06-13" @default.
- W4281775211 creator A5011280331 @default.
- W4281775211 creator A5015595727 @default.
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- W4281775211 creator A5074334575 @default.
- W4281775211 date "2022-11-01" @default.
- W4281775211 modified "2023-10-01" @default.
- W4281775211 title "Stable and reusable hierarchical ZSM-5 zeolite with superior performance for olefin oligomerization when partially coked" @default.
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- W4281775211 doi "https://doi.org/10.1016/j.apcatb.2022.121582" @default.