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Study on Preparation of Ethylbenzene with Ethylene in Dry Gas by Catalytic Rectification

Junxia Liu

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Abstract

Preparation of ethylbenzene with ethylene in dry gas by catalytic rectification process over zeolite β was studied. Effects of technological parameters on the alkylation were investigated. Preferred operating conditions were: ethylene WHSV ≤0 25 h -1 , feed mole ratio of benzene/ethylene≥4, pressure≥1 5 MPa and temperaure 150～180 ℃. Conversion of ethylene was over 96% and selectivity of ethylbenzene was over 94%. Moreover, dimethylbenzene was hardly found in the product.

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What this paper is about

Preparation of ethylbenzene with ethylene in dry gas by catalytic rectification process over zeolite β was studied. Effects of technological parameters on the alkylation were investigated. Preferred operating conditions were: ethylene WHSV ≤0 25 h -1 , feed mole ratio of benzene/ethylene≥4, pressure≥1 5 MPa and temperaure 150～180 ℃. Conversion of ethylene was over 96% and selectivity of ethylbenzene was over 94%. Moreover, dimethylbenzene was hardly found in the product.

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Available abstract

Preparation of ethylbenzene with ethylene in dry gas by catalytic rectification process over zeolite β was studied. Effects of technological parameters on the alkylation were investigated. Preferred operating conditions were: ethylene WHSV ≤0 25 h -1 , feed mole ratio of benzene/ethylene≥4, pressure≥1 5 MPa and temperaure 150～180 ℃. Conversion of ethylene was over 96% and selectivity of ethylbenzene was over 94%. Moreover, dimethylbenzene was hardly found in the product.

Key concepts: Ethylbenzene, Ethylene, Dry gas, Benzene, Catalysis, Zeolite, Selectivity, Chemistry

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