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Etherification of FCC Light Gasoline over Mo-ModifiedβZeolite Catalyst

Yin Zhao, Jun Ma, Haiyan Wang

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Abstract

Etherification activity of several molecular sieve catalysts for FCC light gasoline was studied in a fixed-bed reactor. H-Beta zeolite was found to be high active than that of others and close to cation exchanged resin catalyst. H-Beta zeolite also showed good activity and selectivity and could not be deactivated easily, and could be easily regenerated after deactivation. In order to further improve etherification activity, the surface acidity and pore structure of zeolite could be modified, by loading different metal oxides. The result showed that the highest conversion of tert-olefin was obtained over Mo/Hβ (1%). The influence of reaction temperature, methanol and tert-olefin molar ratio, reaction pressure, and LHSV on the conversion was investigated. At optimized reaction conditions, tert-olefin conversion of 57.42% had been reached with Mo/Hβ (1%).

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What this paper is about

Etherification activity of several molecular sieve catalysts for FCC light gasoline was studied in a fixed-bed reactor. H-Beta zeolite was found to be high active than that of others and close to cation exchanged resin catalyst. H-Beta zeolite also showed good activity and selectivity and could not be deactivated easily, and could be easily regenerated after deactivation. In order to further improve etherification activity, the surface acidity and pore structure of zeolite could be modified, by loading different metal oxides. The result showed that the highest conversion of tert-olefin was obtained over Mo/Hβ (1%). The influence of reaction temperature, methanol and tert-olefin molar ratio, reaction pressure, and LHSV on the conversion was investigated. At optimized reaction conditions, tert-olefin conversion of 57.42% had been reached with Mo/Hβ (1%).

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Available abstract

Etherification activity of several molecular sieve catalysts for FCC light gasoline was studied in a fixed-bed reactor. H-Beta zeolite was found to be high active than that of others and close to cation exchanged resin catalyst. H-Beta zeolite also showed good activity and selectivity and could not be deactivated easily, and could be easily regenerated after deactivation. In order to further improve etherification activity, the surface acidity and pore structure of zeolite could be modified, by loading different metal oxides. The result showed that the highest conversion of tert-olefin was obtained over Mo/Hβ (1%). The influence of reaction temperature, methanol and tert-olefin molar ratio, reaction pressure, and LHSV on the conversion was investigated. At optimized reaction conditions, tert-olefin conversion of 57.42% had been reached with Mo/Hβ (1%).

Key concepts: Zeolite, Olefin fiber, Catalysis, Molecular sieve, Space velocity, Selectivity, Gasoline, Methanol

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