catalytic para-xylene maximization. part x: toluene disproportionation on hf promoted h-zsm-5 catalysts
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ID: 154903
2012
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Abstract
H-ZSM-5 zeolite catalysts were doped with 2%, 3% and 4%HF to be used for investigating their activities and selectivities for xylenes production and for para-xylene maximization at temperatures of 300–500 °C via toluene disproportionation. This doping caused pore size modification of the H-ZSM-5 catalyst. The reaction was carried out in a fixed bed flow type reactor. The ratio of produced para-xylene relative to its thermodynamic composition reached as high as 3.29 at 300 °C on the 4%HF doped H-ZSM-5 catalyst although this catalyst possessed the lowest amount of the largest pores (3.0–5.7 nm) and the smallest pores (0.4–1.7 nm). The overall activities of the catalysts were decreased with an increase in HF doping because of diffusion restriction. The kinetics of the reaction were simply treated and found to give Ea and ΔS∗ values compatible with the characterization data of the catalysts.
| Reference Key |
aboul-gheit2012egyptiancatalytic
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| Authors | ;Ahmed K. Aboul-Gheit;Ateyya A. Aboul-Enein;Salwa A. Ghoneim;Samia A. Hanafi;Ahmed E. Awadallah |
| Journal | 9th international conference on intelligent systems 2018: theory, research and innovation in applications, is 2018 - proceedings |
| Year | 2012 |
| DOI |
10.1016/j.ejpe.2012.11.009
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