scholarly journals The Effect of Addition of ppm-Order-Pd to Fe-K Catalyst on Dehydrogenation of Ethylbenzene

Noble Metals ◽  
10.5772/35040 ◽  
2012 ◽  
Author(s):  
Ryo Watanabe ◽  
Yasushi Sekine ◽  
Masahiko Matsukata ◽  
Eiichi Kikuchi
Keyword(s):  
Dehydrogenation Of Ethylbenzene

The effects of preparation and some physico-chemical parameters on the properties of styrene catalyst - based on iron(III) oxide.

1983 ◽  
Vol 48 (2) ◽  
pp. 421-438 ◽  
Author(s):  
Milan Pospíšil ◽  
Jiří Spěváček ◽  
Jindřich Kryška
Keyword(s):  
Heat Treatment ◽  
Discontinuous Precipitation ◽  
Microstructural Analysis ◽  
Sulfate Solution ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Additional Thermal Treatment ◽  
Genetic Sequences ◽  
Dehydrogenation Of Ethylbenzene ◽  
Thermal Stability Of

Hydrated iron(III) oxides were obtained by discontinuous precipitation of an iron(II) sulfate solution with aqueous ammonium - saturated with carbon dioxide to different CO2/NH3 ratios. An additional thermal treatment of these oxides, under different conditions, provided genetic sequences of intermediates and their final products - catalysts on a Fe2O3/K2O basis, with different promoters. The catalysts were studied by means of the microstructural; analysis, thermogravimetry, DTA, IR spectroscopy and further tested by the dehydrogenation of ethylbenzene to styrene. It was observed that by changing the CO2/NH3 ratio in the precipitation of the initial solutions one can influence some of the properties, as well as, the morphology and thermal stability of the initial intermediates of the preparation of the catalysts. The above mentioned properties become practically unified with the increasing number of the heat treatment operations, with all the investigated catalysts - with the exception of the catalysts' behaviour during their reduction with hydrogen. The presence of iron oxides in various valency states and the different phase composition of the catalysts during their reduction affect the final activity and selectivity of the catalyst in the reaction under the study.

Dehydrogenation of Ethylbenzene with Carbon Dioxide as Oxidant over Mg-modified Alumina-supported V–Sb Oxide Catalysts

2006 ◽  
Vol 35 (1) ◽  
pp. 28-29 ◽  
Author(s):  
Do-Young Hong ◽  
Jong-San Chang ◽  
Vladislav P. Vislovskiy ◽  
Sang-Eon Park ◽  
Yeung-Ho Park ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Oxide Catalysts ◽  
Modified Alumina ◽  
Dehydrogenation Of Ethylbenzene

Oxidative dehydrogenation of ethylbenzene to styrene with CO2 over SnO2–ZrO2 mixed oxide nanocomposite catalysts

2008 ◽  
Vol 131 (1-4) ◽  
pp. 173-178 ◽  
Author(s):  
David Raju Burri ◽  
Kwang-Min Choi ◽  
Dae-Soo Han ◽  
Sujandi ◽  
Nanzhe Jiang ◽  
...  
Keyword(s):  
Oxidative Dehydrogenation ◽  
Mixed Oxide ◽  
Dehydrogenation Of Ethylbenzene ◽  
Nanocomposite Catalysts ◽  
Oxidative Dehydrogenation Of Ethylbenzene

ChemInform Abstract: Catalytic Properties of Metal Oxides with Various Valencies in the Dehydrogenation of Ethylbenzene.

ChemInform ◽  
1987 ◽  
Vol 18 (50) ◽  
Author(s):  
I. P. BELOMESTNYKH ◽  
G. V. SHAKHNOVICH ◽  
N. N. ROZHDESTVENSKAYA ◽  
G. V. ISAGULYANTS
Keyword(s):  
Metal Oxides ◽  
Catalytic Properties ◽  
Dehydrogenation Of Ethylbenzene

Novel Perovskite-Type Oxide Catalysts for Dehydrogenation of Ethylbenzene to Styrene

2009 ◽  
Vol 131 (1-2) ◽  
pp. 54-58 ◽  
Author(s):  
Ryo Watanabe ◽  
Yasushi Sekine ◽  
Masahiko Matsukata ◽  
Eiichi Kikuchi
Keyword(s):  
Oxide Catalysts ◽  
Perovskite Type Oxide ◽  
Dehydrogenation Of Ethylbenzene ◽  
Perovskite Type
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