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Selective Petroleum Refining Over a Zeolite Catalyst with Small Intracrystal Mesopores


  • We acknowledge the European Union, Greek General Secretariat for Research and Technology (EPAN-AKMON-110) and the National Science Foundation for support of this research and thank Prof. I. A. Vasalos for helpful discussions.


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Cracking good cracking: Mesoporous ZSM-5 zeolite catalysts (see TEM image) made by soft templating methods show higher gas–oil cracking activity and greatly enhanced product selectivity than conventional ZSM-5. The cracking of large hydrocarbons to gasoline and diesel fuel occurs in intracrystal mesopores, while the conversion of smaller molecules into feedstock olefins occurs in framework micropores.