Conclusions
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1.
The original form of ultrahigh-silica zeolite shows activity in the aromatization of 1-octene at 400–500°C and atmospheric pressure. Modification of the zeolite by adding Pt, Rh, and V2O5 increases the aromatic hydrocarbon yield.
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2.
In the presence of V2O5-modified ultrahigh-silica zeolite, 1-octene is predominantly converted to p-xylene. The p-xylene content in the catalysate increases with decreasing temperature.
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3.
The hypothesis is proposed that selective formation of p-xylene is caused by blockage of the zeolite channels by the V2O5 additive, leading to difficulty in the desorption of the meta and ortho isomers of the dialkylbenzenes.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1304–1309, June, 1981.
The authors express their thanks to Yu. S. Khodakov and A. N. Subbotin for their help in making the sorption measurements.
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Minachev, K.M., Kondrat'ev, D.A., Dergachev, A.A. et al. Aromatization of 1-octene in the presence of catalysis based on ultrahigh-silica zeolite and aluminum oxide. Russ Chem Bull 30, 1037–1041 (1981). https://doi.org/10.1007/BF00950289
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DOI: https://doi.org/10.1007/BF00950289