Abstract
Isomerization ofn-butane on various types of zeolites (ZVM, ZVK, mordenite, and Y) modified with transition metals and cationic and anionic additives was investigated. Under the conditions studied, H-forms of zeolites are inactive. Pt-containing systems based on the H-form of ZVM (HZVM) are the most efficient catalysts forn-butane isomerization, and the yield of isobutane reaches 20–26 wt.% at a selectivity of 40–45%. Modification of this catalyst with Ga and Fe compounds or with an aqueous solution of HCl increases the selectivity with respect to isobutane up to 70–90%. Introduction of Zn2+ cations or F− and SO4 2− anions into the Pt-containing HZVM system decreases the selectivity and yield of isobutane due to the formation of very strong acidic centers on which disproportionation and hydrocracking ofn-butane mainly occur.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ya. I. Isakov and Kh. M. Minachev,Usp. Khim., 1982,51, 2069 [Russ. Chem. Rev., 1982,51 (Engl. Transl.)].
M. Belloum, Ch. Travers, and J. P. Bournonville,Rev. Inst. Fr. Petrole, 1991,46, 89.
J. C. Yori, J. C. Luy, and J. M. Parera,Appl. Catal., 1989,46, 103.
A. Corma, M. I. Juan-Rajadell, J. M. Lopez-Nieto, A. Martinez, and C. Martinez,Appl. Catal., A, 1994,111, 175.
A. Corma,Chem. Rev., 1995,95, 559.
F. R. Chen, G. Coudurier, J.-F. Joly, and J. C. Vedrine,J. Catal., 1993,143, 616.
P. Nascimento, C. Akratopoulou, and M. Oszagyan,Proc. 10 Intern. Congr. Catal., Akad. Kiado, Budapest, 1993, 1185.
E. Loeffler, L. M. Kustov, V.-L. Zholobenko, U. Lohse, C. Peuker, V. B. Kazansky, and G. Oehlmann,Zeolites, 1990,10, 266.
V. I. Yakerson, T. V. Vasina, L. I. Lafer, V. P. Sitnik, Zh. L. Dykh, A. V. Mokhov, O. V. Bragin and Kh. M. Minachev,Dokl. Akad. Nauk SSSR, 1989,307, 923 [Dokl. Chem., 1989 (Engl. Transl.)].
O. V. Chetina, T. V. Vasina, and V. V. Lunin,Appl. Catal., A, 1995,131, 7.
E. S. Shpiro, D. P. Shevchenko, R. V. Dmitriev, and O. P. Tkachenko,Appl. Catal., A. 1994,165.
T. Inui and A. Masuoka,Prepr. Am. Chem. Soc., Div. Pet. Chem., 1991,36, 705.
V. B. Kazansky, L. M. Kustov and A. Yu. Khodakov,Zeolites: Facts, Figures, Future, inStudies in Surface Science and Catalysis, Eds. P. A. Jacobs and R. A. van Santen, Elsevier, Amsterdam, 1989,49B, 1173.
L. M. Kustov, V. L. Zholobenko, D. A. Kondrat'ev, and V. B. Kazansky,Dokl. Akad. Nauk SSSR, 1988,300, 392 [Dokl. Chem., 1988 (Engl. Transl.)].
L. M. Kustov, S. Kowalak, A. Yu. Khodakov, and V. B. Kazansky,J. Chem. Soc., Faraday Trans., 1995,91, 385.
Author information
Authors and Affiliations
Additional information
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1281–1285, July, 1999.
Rights and permissions
About this article
Cite this article
Vasina, T.V., Masloboishchikova, O.V., Khelkovskaya-Sergeeva, E.G. et al. Effect of the nature of zeolite and modifying additives on the activity of zeolite-containing catalysts inn-butane isomerization. Russ Chem Bull 48, 1270–1273 (1999). https://doi.org/10.1007/BF02495288
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02495288