Conclusions
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1.
The properties of high-silicon pentasils and mordenites of varying composition were compared in transformations of propylene and isobutylene and it was shown that mordenites are ∼10 times less active in the oligomerization reaction; they are also less active in the reactions of aromatization and redistribution of hydrogen and are deactivated during operation. Dealumination slightly increases the activity and stability of mordenites.
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2.
The activity of pentasils and mordenites in oligomerization of olefins virtually does not change with an increase in the SiO2/Al2O2 ratio from ∼30 to 280–300, while the aromatization reaction is more sensitive to a change in the concentration of Al in the backbone of the zeolites with SiO2/Al2O3 ≈ 300, the yield of aromatic hydrocarbons decreases.
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3.
The differences in the catalytic properties of high-silicon pentasils and mordenites in transformations of lower olefins are primarily due to the features of the structure of these zeolites, which determine their different stability in the conditions of a catalytic reaction.
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Literature cited
Kh. M. Minachev and D. A. Kondrat'ev, Usp. Khim.,52, 1921 (1983).
T. N. Bondarenko, D. A. Kondrat'ev, and Kh. M. Minachev, Izv. Akad. Nauk SSSR, Ser. Khim., 2647 (1986).
A. M. Tsybulevskii, A. L. Klyachko, V. I. Berezhnaya, M. V. Pluzhnikova, T. R. Brueva, and G. I. Kapustin, Izv. Akad. Nauk SSSR, Ser. Khim., 2690 (1980).
O. V. Bragin, A. V. Preobrazhenskii, N. V. Palishkina, T. V. Vasina, I. V. Mishin, A. V. Kucherov, and A. A. Slinkin, Kinet. Katal.,26, 126 (1985).
Kh. M. Minachev, D. A. Kondrat'ev, A. A. Dergachev, I. V. Mishin, B. K. Nefedov, I. N. Oleshko, and T. V. Alekseeva, Izv. Akad. Nauk SSSR, Ser. Khim., 1076 (1982).
Kh. M. Minachev, D. A. Kondrat'ev, A. A. Dergachev, A. Yu. Borodkin, and I. V. Minshin, Izv. Akad. Nauk SSSR, Ser. Khim., 1723 (1983).
Kh. M. Minachev, D. A. Kondrat'ev, A. L. Klyachko, A. Yu. Borodkin, G. O. Glonti, A. A. Dergachev, and I. V. Mishin, Izv. Akad. Nauk SSSR, Ser. Khim., 266 (1984).
D. A. Kondrat'ev, T. N. Bondarenko, A. A. Dergachev, and E. N. Savost'yanov, Izv. Akad. Nauk SSSR, Ser. Khim., 1068 (1976).
A. L. Klyachko, Dissertation, Moscow (1980).
A. L. Klyachko, G. I. Kapustin, G. O. Glonti, T. R. Brueva, and A. M. Rubinstein, Proceedings of the Sixth Soviet-French Seminar on Catalysis [in Russian], Moscow (1983), p. 58.
Kh. M. Minachev, D. A. Kondrat'ev, B. K. Nefedov, Yu. S. Khodakov, T. N. Bondarenko, A. A. Dergachev, T. V. Alekseeva, and A. N. Subbotin, Izv. Akad. Nauk SSSR, Ser. Khim., 1310 (1981).
S. H. Csicsery, J. Catal.,23, 1924 (1971); Zeolites,4, 202 (1984).
P. Dejaifve, A. Auroux, P. C. Gravelle, J. C. Vedrine, Z. Gabelica, and E. D. Derouane, J. Catal.,70, 123 (1981).
A. A. Slinkin, A. V. Kucherov, D. A. Kondrat'ev, T. N. Bondarenko, A. M. Rubinstein, and Kh. M. Minachev, Kinet. Katal.,27, 370 (1986).
A. A. Slinkin and A. V. Kucherov, Kinet. Katal.,24, 947 (1983).
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 266–272, February, 1987.
We would like to thank B. K. Nefedov and T. V. Alekseeva for providing the samples of type HSZ zeolites and I. V. Mishin for supplying the samples of dealuminated mordenites.
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Kondrat'ev, D.A., Bondarenko, T.N. & Minachev, K.M. Comparative study of transformations of C3H26 and i-C4H8 on zeolites of the pentasil and mordenite type. Russ Chem Bull 36, 232–237 (1987). https://doi.org/10.1007/BF00959353
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DOI: https://doi.org/10.1007/BF00959353