104
70
ALIMARDANOV et al.
9. C. Bigey and B. ꢀL. Su, J. Mol. Catal. A 209, 179
(2004).
1
10. S. Gnanapragasam, V. Krishnasamy, and V. Mohan,
Indian J. Chem., Sect. A: Inorg., Bioinorg., Phys.,
Theor. Anal. Chem. 40, 947 (2001).
60
50
40
30
20
10
2
4
5
11. Kh. M. Alimardanov, S. I. Abasov, A. F. Abdullaev,
et al., Pet. Chem. 41, 431 (2001).
3
12. Kh. M. Alimardanov, L. A. Tairova, and S. I. Abasov,
Pet. Chem. 43, 403 (2003).
13. Kh. M. Alimardanov, F. M. Velieva, L. A. Dadasheva,
and M. I. Rustamov, Pet. Chem. 46, 353 (2006).
14. N. S. Nesterenko, O. A. Ponomerova, V. V. Yuschenko,
et al., Appl. Catal. A: Gen/ 254, 261 (2003).
15. SheꢀTin Wong, HongꢀPing Lin, and ChungꢀYuan
2
4
6
8
10 20 22 24 26 28
Mou, Appl. Catal. A: Gen. 198, 103 (2000).
τ
, h
16. Y. Qiao, C. Miao, Y. Yue, et al., Micropor. Mezopor.
Mater. 119, 150 (2009).
Fig. 5. Effect of the catalyst onꢀstream time on catalyst
17. I. G. Shmelev, A. A. Lamberov, and R. G. Romanova,
in Modern Problems of Theoretical and Experimental
Chemistry (2001) [in Russian], p. 69.
activity in the oxidative dehydrogenation of ethylbenzene
(at 470°C; ethylbenzene : O = 1 : 0.5).
2
18. E. M. Mamedov, M. A. Gagarin, and Kh. E. Kharlamꢀ
pidi, Zh. Prikl. Khim. 75, 599 (2002).
ene, the catalyst activity slowly increased for 10–15 h,
and then it was stabilized. It is likely that the catalytic
properties of these systems changed in the course of
the process due to the additional modification of their
surface by coke deposits, whose composition was difꢀ
fered from the composition of immobilized carbon
nanoparticles. The greatest coke deposition was
observed in the oxidative dehydrogenation of 4ꢀvinylꢀ
cyclohexene.
19. O. A. Ponomareva, I. F. Moskovskaya, and B. V. Roꢀ
manovskii, Pet. Chem. 41, 257 (2001).
20. O. A. Ponomareva, I. F. Moskovskaya, and B. V. Roꢀ
manovskii, Pet. Chem. 39, 83 (1999).
21. Yu. I. Sidorenko, P. N. Galich, V. S. Gutyrya, et al.,
Dokl. Akad. Nauk SSSR 173, 132 (1967).
22. K. I. Patrilyak, Yu. I. Sidorenko, and V. A. Bortyꢀ
shevskii, Alkylation on Zeolites (Naukova Dumka, Kiev,
1991) [in Russian].
Thus, the modification of pentasil zeolites with
immobilized carbon nanoparticles leads to an increase
in their activity and selectivity in radical–ion reacꢀ
tions, in particular, the oxidative dehydrogenation of
4ꢀvinylcyclohexene and ethylbenzene. The introducꢀ
tion of immobilized carbon nanoparticles facilitates
the blocking of strong acid sites in the catalysts, the
highly dispersed redistribution of metal cations, and
an increase in the stability of the catalyst.
23. Kh. M. Alimardanov and A. F. Abdullaev,
Neftekhimiya 35, 526 (1995).
24. Y. S. Choi, Y.ꢀK. Park, J.ꢀS. Chang, et al., Catal. Lett.
69, 93 (2000).
25. J.ꢀS. Chang, S.ꢀE. Park, Q. Gao, et al., Chem. Comꢀ
mun., 859 (2001).
26. R. Neumann and I. Dror, Appl. Catal. 172, 67 (1998).
27. G. G. Garifzyanov, I. Kh. Bikbulatov, and R. B. Valitov,
Neftekhimiya 10, 28 (1970).
28. Kh. M. Minachev and Ya. I. Isakov, Preparation, Actiꢀ
vation, and Regeneration of Zeolite Catalysts (TsNIꢀ
ITENeftekhimii, Moscow, 1971) [in Russian].
REFERENCES
1. Kh. M. Minachev and A. A. Dergachev, Izv. Akad.
Nauk SSSR, Ser. Khim., No. 6, 1018 (1993).
2. D. Seddon, Catal. Today, No. 6, 351 (1998).
29. I. E. Maxwell, R. S. Downing, and S. A. J. van Langen,
J. Catal. 61, 485 (1980).
30. R. C. Weast and M. J. Astle, Handbook of Data on
Organic Compounds (CRC, Boca Raton, 1985), Vol. 1.
3. V. R. Choudhary, P. Devadas, S. Banerjee, and
A. K. Kinage, Microporous Mezoporous Mater. 47
,
253 (2001).
31. Kh. M. Alimardanov, A. A. Alieva, and S. I. Abasov, Pet.
Chem. 50, 124 (2010).
4. V. R. Choudhary, S. Banerjee, and P. Devadas, J. Catal.
205, 398 (2002).
32. T. G. Alkhazov and A. E. Lisovskii, Oxidative Dehydroꢀ
genation of Hydrocarbons (Khimiya, Moscow, 1980) [in
Russian].
5. R. V. Dmitriev, D. P. Shevchenko, E. S. Shpiro, et al.,
Stud. Surf. Sci. Catal. 69, 381 (1991).
33. O. V. Krylov, Heterogeneous Catalysis (Akademkniga,
6. A. L. Lapidus, A. A. Dergachev, V. A. Kostina, and
Moscow, 2004) [in Russian].
A. A. Silakova, Pet Chem. 48, 83 (2008).
34. S. J. Kulkarni, H. Hattori, and K. Tanabe, Appl. Catal.
7. D. Freeman, R. P. K. Wells, and G. J. Hutschings,
49, 27 (1989).
J. Catal. 205, 358 (2002).
8. O. A. Sinitsyna, V. N. Chumakova, and I. F. Moskꢀ 35. P. A. Jacobs, Carboniogenic Activity of Zeolites (Elsevier,
ovskaya, Neftekhimiya 27, 194 (1987). Amsterdam, 1977; Khimiya, Moscow, 1983).
PETROLEUM CHEMISTRY Vol. 52
No. 2
2012