Volume-of-fluid-based model for multiphase flow in high-pressure trickle-bed reactor: Optimization of numerical parameters

AIChE Journal ◽  
2009 ◽  
Vol 55 (11) ◽  
pp. 2920-2933 ◽  
Author(s):  
Rodrigo J. G. Lopes ◽  
Rosa M. Quinta-Ferreira
Keyword(s):  
High Pressure ◽  
Multiphase Flow ◽  
Volume Of Fluid ◽  
Trickle Bed Reactor ◽  
Reactor Optimization ◽  
Trickle Bed

scholarly journals CFD Prediction of Hydrodynamics in High-Pressure Trickle Bed Reactor

2009 ◽  
Vol 42 (Supplement.) ◽  
pp. s119-s124 ◽  
Author(s):  
Arnab Atta ◽  
Shantanu Roy ◽  
K. D. P. Nigam
Keyword(s):  
High Pressure ◽  
Trickle Bed Reactor ◽  
Trickle Bed

Glucose Hydrogenation in a Trickle-Bed Reactor

1997 ◽  
Vol 62 (9) ◽  
pp. 1423-1428 ◽  
Author(s):  
Vratislav Tukač
Keyword(s):  
Activation Energy ◽  
High Pressure ◽  
Aqueous Solutions ◽  
Catalytic Hydrogenation ◽  
Glucose Concentration ◽  
Pressure Range ◽  
Scaling Up ◽  
Supported Nickel Catalyst ◽  
Trickle Bed Reactor ◽  
Trickle Bed

Catalytic hydrogenation of 40% aqueous solutions of D-glucose to D-glucitol was studied in a high-pressure trickle-bed reactor. The reactions were performed on a supported nickel catalyst at temperatures ranging from 115 to 165 °C and in the pressure range 0.5 to 10 MPa. The order of the reaction with respect to hydrogen is 0.65 and apparent activation energy 23.8-48.5 kJ mol-1, the latter depending on initial molar glucose concentration and density and viscosity of the solution. The influence of external diffusion is necessary to take into account for scaling-up the process.

Investigation of a complex reaction network: I. Experiments in a high-pressure trickle-bed reactor

AIChE Journal ◽  
1998 ◽  
Vol 44 (4) ◽  
pp. 912-920 ◽  
Author(s):  
M. R. Khadilkar ◽  
Y. Jiang ◽  
M. Al-Dahhan ◽  
M. P. Duduković ◽  
S. K. Chou ◽  
...  
Keyword(s):  
High Pressure ◽  
Reaction Network ◽  
Complex Reaction ◽  
Trickle Bed Reactor ◽  
Trickle Bed

Wall flow in trickle bed reactor

1975 ◽  
Vol 40 (10) ◽  
pp. 3145-3152 ◽  
Author(s):  
J. Prchlík ◽  
J. Soukup ◽  
V. Zapletal ◽  
V. Růžička ◽  
P. Kovařík
Keyword(s):  
Trickle Bed Reactor ◽  
Wall Flow ◽  
Trickle Bed

Mass Transfer Limited Wet Oxidation in Trickle-Bed Reactor

1998 ◽  
Vol 63 (11) ◽  
pp. 1938-1944 ◽  
Author(s):  
Vratislav Tukač ◽  
Jiří Vokál ◽  
Jiří Hanika
Keyword(s):  
Supported Catalyst ◽  
Reaction Rates ◽  
Gas Transfer ◽  
Wet Oxidation ◽  
Reactor Performance ◽  
Catalytic Wet Oxidation ◽  
Environmental Application ◽  
Trickle Bed Reactor ◽  
Fine Glass ◽  
Trickle Bed

Catalytic activity of CuO-supported catalyst in phenol oxidation, and the influence of reaction conditions, viz. temperature (125-170 °C), oxygen partial pressure (1-7 MPa) and liquid feed (30-760 ml h-1), in the continuous operation using 17.9 mm i.d. trickle-bed reactor is presented. The hydrodynamic impact on the three-phase trickle-bed reactor performance in an environmental application of catalytic wet oxidation was also investigated. The results of trickle-bed operation were strongly influenced by wetting efficiency. An insufficient catalyst wetting can be to compensated by filling the catalyst bed voids by fine glass spheres. In the case of the gas transfer limited reaction, a better wetting of the catalyst can lead to worse reactor performance due to lower reaction rates.

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