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1.
D. I. Kiryanov M. D. Smolikov V. V. Pashkov A. G. Proskura E. V. Zatolokina I. E. Udras A. S. Belyi 《Russian Journal of General Chemistry》2007,77(12):2255-2264
Analysis of the modern state of catalytic reforming is performed. Comparative assessment of the efficiency of various technologies
of the process is given and their distribution in Russia and abroad is shown. Experience of the modernization of reforming
installations with periodic catalyst regeneration is summarized. The state of manufacture of reforming catalysts in our country
and accumulated experience of the development of catalysts of the PR series are presented. Results of industrial exploitation
of new domestic reforming catalysts are shown. On this basis comparative assessment of Russian and imported catalysts is given.
Original Russian Text D.I. Kiryanov, M.D. Smolikov, V.V. Pashkov, A.G. Proskura, E.V. Zatolokina, I.E. Udras, A.S. Belyi,
2007, published in Russkii Khimicheskii Zhurnal, 2007, Vol. 51, No. 4, pp. 60–68. 相似文献
2.
Chzhu D. P. Tsyrul'nikov P. G. Kryukova G. N. Borbat V. F. Kudrya E. N. Smolikov M. D. Bubnov A. V. 《Kinetics and Catalysis》2004,45(3):406-413
It is shown that for palladium catalysts supported on various supports, there is no effect of thermal activation consisting of an increase in the turnover number (TON) of palladium with an increase in the temperature of sample calcination from 500 to 700°C, as was observed in the case of similar supported platinum catalysts; for two palladium–alumina catalysts calcined at 500°C and differing in the concentration of palladium and dispersity, the TON of low-dispersity palladium is substantially higher than the TON of high-dispersity palladium; all other conditions being the same, the TON of supported palladium is determined by the support nature. 相似文献
3.
V. I. Kuznetsov E. N. Yurchenko A. S. Belyi E. V. Zatolokina M. A. Smolikov V. K. Duplyakin 《Reaction Kinetics and Catalysis Letters》1982,21(3):419-422
Mössbauer spectroscopic studies of the state of Pt–Sn catalyst for hydrocarbon conversion supported on prechlorinated -Al2O3 indicate that, unlike nonchlorinated Al2O3, this system is much more reduced and besides Pt3Sn–PtSn2, its surface contains sigfificant amounts of Sn(II) and Sn(IV) chlorides bonded to the surface.
Pt–Sn , -Al2O3. , Al2O3, Pt–Sn Pt3Sn–PtSn2 Sn(II) (IV), .相似文献
4.
Chzhu D. P. Tsyrul'nikov P. G. Kudrya E. N. Smolikov M. D. Borbat V. F. Bubnov A. V. 《Kinetics and Catalysis》2002,43(3):379-383
A sharp increase in the atomic catalytic activity (ACA) of supported platinum catalysts in the model reaction of n-pentane complete oxidation is found on going from the preliminary calcination temperature of 500–600°C to a temperature of 700°C. ACA increases by an order of magnitude for the Pt/-Al2O3 system, 3 times for Pt/ZrO2, and 1.5 times for Pt/CeO2. The per-gram activities of all catalysts decrease because of a decrease in the dispersion of supported platinum with an increase in the temperature of preliminary calcination. 相似文献
5.
E. A. Belopukhov I. M. Kalashnikov M. D. Smolikov V. A. Shkurenok D. I. Kir’yanov A. S. Belyi 《Russian Journal of Applied Chemistry》2017,90(12):1931-1938
Effect of cyclohexane and benzene on the isomerization of n-heptane on Pt/BEA-Al2O3 and Pt/MORAl2O3 catalysts was studied. In the presence of catalysts with platinum deposited from a [Pt(NH3)4]Cl2 solution, cyclohexane and benzene inhibit the conversion of n-heptane. At the same time, the presence of cycloalkanes and aromatic hydrocarbons leads to an increase in the isomerization selectivity due to the suppression of side reactions of hydrocracking. Samples based on the BEA zeolite were found to be more active as compared with similar samples based on mordenite. 相似文献
6.
7.
A. S. Belyi D. I. Kiryanov M. D. Smolikov E. V. Zatolokina I. E. Udras V. K. Duplyakin 《Reaction Kinetics and Catalysis Letters》1994,53(1):183-189
Behavior of supported Pt in O2 chemisorption and (O2–H2) titration has been studied. In Pt/SiO2, Pt/-Al2O3 and Pt/-Al2O3 Pto catalysts are characterized by the following stoichiometric coefficients of oxygen adsorption (X), hydrogen adsorption (Y) and oxygen-hydrogen titration (Z) X:Y:Z=1:1:1.5. The co-efficients differ for Pt–Cl/-Al2O3 reforming catalysts. This is explained by the presence of electron deficient platium (Pt) with a coefficient ratio of X:Y:Z=0.5:2:1.5. 相似文献
8.
M. D. Smolikov K. V. Kazantsev E. V. Zatolokina D. I. Kir’yanov E. A. Paukshtis A. S. Belyi 《Kinetics and Catalysis》2010,51(4):584-594
The state of surface Pt atoms in the Pt/SO4/ZrO2/Al2O3 catalyst and the effect of the state of platinum on its adsorption and catalytic properties in the reaction of n-hexane isomerization were studied. The Pt-X/Al2O3 alumina-platinum catalysts modified with various halogens (X = Br, Cl, and F) and their mechanical mixtures with the SO4/ZrO2/Al2O3 superacid catalyst were used in this study. With the use of IR spectroscopy (COads), oxygen chemisorption, and oxygen-hydrogen titration, it was found that ionic platinum species were present on the reduced
form of the catalysts. These species can adsorb to three hydrogen atoms per each surface platinum atom. The specific properties
of ionic platinum manifested themselves in the formation of a hydride form of adsorbed hydrogen. It is believed that the catalytic
activity and operational stability of the superacid system based on sulfated zirconium dioxide were due to the participation
of ionic and metallic platinum in the activation of hydrogen for the reaction of n-hexane isomerization. 相似文献
9.
The interaction of CO and O2 on the oxidized surface of polycrystalline palladium under steady state reaction conditions has been studied. The adsorption of carbon monoxide leads to the appearance of its and states. The state on the surface shifts the temperature dependence of the CO oxidation rate under s.s. conditions by about 200 K.
CO O2 . , CO. CO 200° CO .相似文献
10.
M. D. Smolikov A. S. Belyi A. I. Nizovskii I. E. Smirnova A. S. Semikolenov V. K. Duplyakin 《Reaction Kinetics and Catalysis Letters》1988,37(2):437-442
A new quantitative method to determine the quantity of nonmetallic platinum in reduced catalysts whose state is close to Pt2+ is suggested.
, Pt2+.相似文献