Heat and mass transfer in heterogeneous catalysis. XXX. Effect of heat and mass transfer at the external surface of the catalyst particle on behaviour of an isothermal tubular flow reactor

1971 ◽  
Vol 36 (7) ◽  
pp. 2454-2466
Author(s):  
J. Horák ◽  
F. Jiráček
Keyword(s):  
Mass Transfer ◽  
Heterogeneous Catalysis ◽  
Heat And Mass Transfer ◽  
Flow Reactor ◽  
External Surface ◽  
Catalyst Particle ◽  
Tubular Flow Reactor ◽  
Tubular Flow

scholarly journals Turbulent Mixing in a Tubular Flow Reactor

1970 ◽  
Vol 34 (12) ◽  
pp. 1315-1323,a1 ◽  
Author(s):  
Yoshio Miyairi ◽  
Mitsuo Kamiwano ◽  
Kazuo Yamamoto
Keyword(s):  
Turbulent Mixing ◽  
Flow Reactor ◽  
Tubular Flow Reactor ◽  
Tubular Flow

New Insights into the Kinetics of the Gas-Phase Oxidation of Hexafluoropropene

2016 ◽  
Vol 41 (4) ◽  
pp. 418-427 ◽  
Author(s):  
David Lokhat ◽  
Maciej Starzak ◽  
Deresh Ramjugernath
Keyword(s):  
Gas Phase ◽  
Oxidation Process ◽  
Flow Reactor ◽  
Packed Column ◽  
Phase Reaction ◽  
Analytical Technique ◽  
Tubular Flow Reactor ◽  
Gas Phase Oxidation ◽  
Tubular Flow ◽  
Kinetics Of

The gas-phase reaction of hexafluoropropene and molecular oxygen was investigated in a tubular flow reactor at 450 kPa and within a temperature range of 463–493 K using HFP/O2 mixtures containing 20–67% HFP on a molar basis. Capillary and packed column chromatography served as the main analytical technique. The reaction yielded HFPO, COF2, CF3COF, C2F4 and c-C3F6 as gas-phase products. High molecular weight oligomers were also formed. The oligomers were found to have a polyoxadifluoromethylene structure according to elemental and 19F NMR analysis. At 493 K HFP is proposed to undergo oxygen-mediated decomposition to difluorocarbene radicals, yielding greater quantities of difluorocarbene recombination products. Kinetic parameters for a revised model of the oxidation process were identified through least squares analysis of the experimental data.

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