Hydrogenation of carbon dioxide on nickel catalysts. I. Kinetics of hydrogenation on nickel-chromia catalysts

1969 ◽  
Vol 34 (1) ◽  
pp. 45-56 ◽  
Author(s):  
V. Pour
Keyword(s):  
Carbon Dioxide ◽  
Nickel Catalysts ◽  
Kinetics Of ◽  
Hydrogenation Of Carbon Dioxide

Cobalt–Nickel Catalysts for Selective Hydrogenation of Carbon Dioxide into Ethanol

ACS Catalysis ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 11335-11340 ◽  
Author(s):  
Lingxiang Wang ◽  
Shenxian He ◽  
Liang Wang ◽  
Ye Lei ◽  
Xiangju Meng ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Selective Hydrogenation ◽  
Nickel Catalysts ◽  
Cobalt Nickel ◽  
Hydrogenation Of Carbon Dioxide

Catalytic Hydrogenation of Carbon Dioxide to Fuels

2014 ◽  
Vol 18 (10) ◽  
pp. 1335-1345 ◽  
Author(s):  
Xuecheng Yan ◽  
Han Guo ◽  
Dongjiang Yang ◽  
Shilun Qiu ◽  
Xiangdong Yao
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Hydrogenation ◽  
Hydrogenation Of Carbon Dioxide

Kinetics of temperature-programmed reactivation of a hydrodesulphurization catalyst

1983 ◽  
Vol 48 (12) ◽  
pp. 3340-3355 ◽  
Author(s):  
Pavel Fott ◽  
Pavel Šebesta
Keyword(s):  
Carbon Dioxide ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Thin Layer ◽  
Kinetic Parameters ◽  
Diffusion Region ◽  
Reaction Heat ◽  
Gaseous Products ◽  
Temperature Programmed ◽  
Kinetics Of

The kinetic parameters of reactivation of a carbonized hydrodesulphurization (HDS) catalyst by air were evaluated from combined thermogravimetric (TG) and differential thermal analysis (DTA) data. In addition, the gaseous products leaving a temperature-programmed reactor with a thin layer of catalyst were analyzed chromatographically. Two exothermic processes were found to take part in the reactivation, and their kinetics were described by 1st order equations. In the first process (180-400 °C), sulphur in Co and Mo sulphides is oxidized to sulphur dioxide; in the second process (300-540 °C), in which the essential portion of heat is produced, the deposited carbon is oxidized to give predominantly carbon dioxide. If the reaction heat is not removed efficiently enough, ignition of the catalyst takes place, which is associated with a transition to the diffusion region. The application of the obtained kinetic parameters to modelling a temperature-programmed reactivation is illustrated on the case of a single particle.

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