Results 131 to 140 of about 543 (165)

OXIDATIVE DEHYDROGENATION OF METHYLCYCLOHEXANE OVER MODIFIED ZEOLITES

Caspian Corrosion Control Journal, 2020
In the temperature range 280-390°C, at different ratios of methylcyclohexane:oxygen:nitrogen, space velocity of the gas mixture 1000-3000 h-1 and at atmospheric pressure it has been investigated the catalytic properties of synthetic and natural zeolites modified with various cations of transition and non-transition elements in the vapor-phase reaction ...
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Isomerization, dehydrogenation and cracking of methylcyclohexane over HNaY zeolites

Reaction Kinetics and Catalysis Letters, 1981
On HNaY zeolites the fractions of acid sites which are active for cracking, isomerization and dehydrogenation of methylcyclohexane do not increase linearly with increasing degree of exchange. Isomerization and dehydrogenation seem to involve a similar activated complex, while cracking proceeds through a different one and requires stronger acid sites ...
A. Corma, A. López Agudo
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Palladium-Containing Catalysts Based on Functionalized CNFs for the Dehydrogenation of Methylcyclohexane

Кинетика и катализ, 2023
The activity of palladium-containing catalysts based on functionalized carbon nanofibers prepared by an incipient wetness impregnation method in the dehydrogenation reaction of methylcyclohexane was investigated. Methylcyclohexane is considered as one of the most promising liquid hydrogen carriers. The dependence of the catalytic characteristics of the
G. B. Veselov, D. M. Shivtsov, S. D. Afonnikova, I. V. Mishakov, A. A. Vedyagin   +4 more
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Active and stable Pt-Ga2O3/Al2O3 catalyst for dehydrogenation of methylcyclohexane

Catalysis Today
Mohsen Shakouri, Yongfeng Hu, Yong Guo   +2 more
exaly   +2 more sources

A mathematical model for the dehydrogenation of methylcyclohexane in a packed bed reactor

The Canadian Journal of Chemical Engineering, 1987
AbstractA model for the dehydrogenation of methylcyclohexane in a tubular reactor over an industrial catalyst Pt‐Sn/Al2O3 has been established. This model takes into account the axial dispersion at the inlet of the catalytic bed reactor as well as the heat transfer at the wall of the reactor.
A. Touzani, D. Klvana, G. BÉLanger
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Study on the Catalyst of Methylcyclohexane Dehydrogenation Using Ionic Liquid

2011 Third International Conference on Measuring Technology and Mechatronics Automation, 2011
[emim]PF6(emim=1-ethyl-3-methylimidazolium), [emim]BF4, [emim]HSO4 and corresponding PtB ionic liquid systems were synthesized from [emim]Br, respectively. The results of infrared spectrometry, HPLC and 1HNMR show that the products are objective ionic liquids. TEM of the prepared nanometer PtB in [emim]PF6 exhibits a uniform particle size of 10 nm. The
Bohejin Tang, Aomin Tang, Jiachang Zhao, Jingli Xu   +3 more
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Dehydrogenation of methylcyclohexane to toluene in a pilot-scale membrane reactor

Applied Catalysis A: General, 1997
Abstract A pilot-scale fixed-bed membrane reactor, containing a catalyst in the shell and a membrane sealed in the centre to remove H 2 in situ, was used to improve the efficiency of methylcyclohexane dehydrogenation to toluene. A sulphidedPt/Al 2 O 3 catalyst and a tubular palladium silver (Pd 77 Ag 23 ) membrane with 0.1 mm wall thickness, both ...
Jawad K. Ali, Alfons Baiker
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Particle size effect in supported platinum: Methylcyclohexane dehydrogenation

Journal of Catalysis, 1992
Abstract Dehydrogenation of methylcyclohexane has been studied over a platinum monometallic catalyst supported on α-Al 2 O 3 . Physical and chemical properties of platinum crystallites were studied by TPR and TPD/H 2 techniques. The hydrogen desorption profile was found to be particle size dependent.
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Dehydrogenation Of Methylcyclohexane On The Industrial Catalyst: Kinetic Study.

1984
The dehydrogenation of methylcyclohexane on an industrial Platinum catalyst carried out by using an integral reactor is represented by a simple kinetic model applicable for a large range of temperatures (300-450°C) and conversions (0-100%). Beside the hydrogen necessary in the feed to assure the constant activity of the catalyst, the rate of ...
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Characterisation of Catalysts Used in Wall Reactors for the Catalytic Dehydrogenation of Methylcyclohexane

Journal of Catalysis, 1999
Abstract The catalytically active coatings of tube wall reactors, consisting of an aluminium oxide washcoat and platinum, platinum/tin, or platinum/rhenium deposited by incipient wetness impregnation, are characterized using BET surface area measurements, CO chemisorption, X-ray photoelectron spectroscopy, plasma atomic emission spectroscopy, high ...
S. Tschudin, T. Shido, R. Prins, A. Wokaun   +3 more
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