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- W2034282462 abstract "Ethyltoluenes production via two alkylation reactions vis: toluene ethylation and ethylbenzene (EB) methylation on ZSM-5 and mordenite (MOR) was studied in a batch fluidized-bed reactor at a temperature range of 200-300. °C for reaction times of 5-20. s. Toluene ethylation with ethanol gave better yield and selectivity to ethyltoluenes on ZSM-5 compared with EB methylation with methanol. A maximum ethyltoluenes yield of 22.0% was achieved during toluene ethylation whereas 7.3% yield was attained in EB methylation on ZSM-5. To achieve enhanced para-ethyltoluene selectivity, ZSM-5 was modified by silylation treatment using tetraethyl orthosilicate (TEOS). While toluene conversion on silylated ZSM-5 (HZ80-6L) was decreased, 100% para-isomer selectivity was obtained due to the reduction of the effective pore channel and strength of acid sites. A comprehensive kinetic study of the toluene ethylation reaction is reported in this paper using the power-law approach for the model development. A satisfactory correlation between experimental data and the model result was achieved. The required apparent activation energy for the alkylation step of toluene ethylation reaction over ZSM-5, HZ80-6L and MOR catalysts was determined to be 70. kJ/mol, 63. kJ/mol and 28. kJ/mol, respectively." @default.
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- W2034282462 date "2015-03-01" @default.
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- W2034282462 title "Experimental and kinetic studies of ethyltoluenes production via different alkylation reactions" @default.
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- W2034282462 doi "https://doi.org/10.1016/j.cherd.2015.01.001" @default.
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