Thermal stability and catalytic properties of the Wells-Dawson K6P2W18O62·10H2O heteropoly compound in the oxidative dehydrogenation of isobutane to isobutene

1996 ◽  
Vol 3 (3-4) ◽  
pp. 387-406 ◽  
Author(s):  
Clara Comuzzi ◽  
Alessandra Primavera ◽  
Alessandro Trovarelli ◽  
Gianluca Bini ◽  
Fabrizio Cavani
2005 ◽  
Vol 70 (6) ◽  
pp. 791-798 ◽  
Author(s):  
Ioan-Cezar Marcu ◽  
Jean Millet ◽  
Ioan Sandulescu

The catalytic properties of titanium pyrophosphate in the oxidative dehydrogenation of isobutane to isobutylene were investigated in the 400 ? 550 ?C temperature range. Asignificant change of the product distribution and of the apparent activation energy of the reaction was observed at about 490 ?C. This phenomenon, already observed in the oxidative dehydrogenation of n-butane, has been interpreted by the existence of two reaction mechanisms depending upon the reaction temperature. Comparison with the n-butane reaction allowed different activation pathways for the activation of alkanes to be proposed. The catalytic properties of TiP2O7 in the oxidative dehydrogenation of isobutane was also compared to those obtained previously with several other pyrophosphates and TiP2O7 was found to be less active and selective for this reaction.


2014 ◽  
Vol 32 (8) ◽  
pp. 1424-1429
Author(s):  
Guosong SUN ◽  
Qingze HUANG ◽  
Huiquan LI ◽  
Haitao LIU ◽  
Zhao ZHANG ◽  
...  

2020 ◽  
Author(s):  
Leelavathi Annamalai ◽  
Sopuruchukwu Ezenwa ◽  
Yanliu Dang ◽  
Haiyan Tan ◽  
Steven L. Suib ◽  
...  

2016 ◽  
Vol 338 ◽  
pp. 174-183 ◽  
Author(s):  
Uwe Rodemerck ◽  
Sergey Sokolov ◽  
Mariana Stoyanova ◽  
Ursula Bentrup ◽  
David Linke ◽  
...  

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