Conclusions
-
1.
Modification of the 70% HZHM + 30% Al2O3 HS zeolite composite with Co or Zn + Cr oxides (from 5 to 15%) increases the aromatizing activity of the catalysts in conversion of methanol by 1.5–2 times.
-
2.
The 10% P2O5/70% HZHM + 30% Al2O3 catalytic system is efficient in selective transformation of methanol into C2-C4, olefins (yield >70%).
-
3.
The conditions of their preliminary activation have a significant effect on the catalytic activity of Co- and Zn + Cr-containing zeolite systems; successive air-hydrogen treatment was optimum for these systems.
Similar content being viewed by others
Literature cited
C. D. Chang, Catal. Rev.-Sci. Eng.,25, 1 (1983).
Kh. M. Minachev and D. A. Kondrat'ev, Usp. Khim.,52, 1921 (1983).
T. V. Vasina, E. G. Khelkovskaya-Sergeeva, B. K. Nefedov, and O. D. Bragin, Izv. Akad. Nauk SSSR, Ser. Khim., 2435 (1985).
L. G. Agabalyan, N. S. Khashagul'gova, and I. I. Yaroshenko, Proceedings of the 3rd All-Union Conference on the Use of Zeolites in Catalysis [in Russian], Nauka, Moscow (1985), p. 82.
T. Ihui, E. Araki, T. Sezume, et al., Reakt. Kinet. Catal. Lett.,18, 1 (1981).
T. V. Vasina, E. G. Khelkovskaya-Sergeeva, N. N. Rostanin, et al., Izv. Akad. Nauk SSSR, Ser. Khim., 1487 (1986).
O. V. Bragin, A. V. Preobrazhenskii, and A. L. Liberman, Izv. Akad. Nauk SSSR, Ser. Khim., 2751 (1974).
W. W. Kaeding and S. A. Butter, J. Catal.,61, 155 (1980).
V. N. Romannikov and K. G. Ione, Proceedings of the 3rd All-Union Conference on the Use of Zeolites in Catalysis [in Russian], Nauka, Moscow (1985), p. 87.
P. B. Weisz, Pure Appl. Chem.,52, 2103 (1980).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2666–2670, December, 1987.
Rights and permissions
About this article
Cite this article
Vasina, T.V., Isaev, S.A., Preobrazhenskii, A.V. et al. Effect of modifying additives on the selectivity of transformation of methanol into aromatic hydrocarbons or lower olefins in the presence of pentasils. Russ Chem Bull 36, 2470–2474 (1987). https://doi.org/10.1007/BF00957212
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00957212