scholarly journals Fixed bed reactor design for gas phase chain reactions catalysed by solids: the oxidative coupling of methane

1994 ◽  
Vol 49 (24) ◽  
pp. 5453-5463 ◽  
Author(s):  
J.H.B.J. Hoebink ◽  
P.M. Couwenberg ◽  
G.B. Marin
Keyword(s):  
Gas Phase ◽  
Oxidative Coupling ◽  
Fixed Bed ◽  
Reactor Design ◽  
Oxidative Coupling Of Methane ◽  
Fixed Bed Reactor ◽  
Chain Reactions

scholarly journals Two-Dimensional Modeling of the Oxidative Coupling of Methane in a Fixed Bed Reactor: A Comparison among Different Catalysts

2017 ◽  
Vol 21 (3) ◽  
pp. 77-99 ◽  
Author(s):  
Salamah Manundawee ◽  
Amornchai Arpornwichanop ◽  
Suttichai Assabumrungrat ◽  
Wisitsree Wiyaratn
Keyword(s):  
Oxidative Coupling ◽  
Fixed Bed ◽  
Oxidative Coupling Of Methane ◽  
Fixed Bed Reactor ◽  
Two Dimensional ◽  
Dimensional Modeling

Scale up and stability test for oxidative coupling of methane over Na2WO4-Mn/SiO2 catalyst in a 200 ml fixed-bed reactor

2008 ◽  
Vol 17 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Haitao Liu ◽  
Xiaolai Wang ◽  
Dexin Yang ◽  
Runxiong Gao ◽  
Zhonglai Wang ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Scale Up ◽  
Fixed Bed ◽  
Oxidative Coupling Of Methane ◽  
Stability Test ◽  
Fixed Bed Reactor

scholarly journals Model-Based Catalyst Selection for the Oxidative Coupling of Methane in an Adiabatic Fixed-Bed Reactor

2018 ◽  
Vol 57 (48) ◽  
pp. 16295-16307 ◽  
Author(s):  
Laura Pirro ◽  
Ana Obradović ◽  
Bart D. Vandegehuchte ◽  
Guy B. Marin ◽  
Joris W. Thybaut
Keyword(s):  
Oxidative Coupling ◽  
Fixed Bed ◽  
Oxidative Coupling Of Methane ◽  
Fixed Bed Reactor ◽  
Model Based ◽  
Selection For ◽  
Catalyst Selection

Modeling of aerated upflow fixed bed reactors for nitrification

1999 ◽  
Vol 39 (4) ◽  
pp. 85-92 ◽  
Author(s):  
J. Behrendt
Keyword(s):  
Mathematical Model ◽  
Mass Transfer ◽  
Liquid Phase ◽  
Gas Phase ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Bulk Liquid ◽  
Initial Value ◽  
Fixed Bed Reactors ◽  
Number Of Cells

A mathematical model for nitrification in an aerated fixed bed reactor has been developed. This model is based on material balances in the bulk liquid, gas phase and in the biofilm area. The fixed bed is divided into a number of cells according to the reduced remixing behaviour. A fixed bed cell consists of 4 compartments: the support, the gas phase, the bulk liquid phase and the stagnant volume containing the biofilm. In the stagnant volume the biological transmutation of the ammonia is located. The transport phenomena are modelled with mass transfer formulations so that the balances could be formulated as an initial value problem. The results of the simulation and experiments are compared.

Comparative Study on the Kinetic Modeling of the Oxidative Coupling of Methane in Laboratory and Bench Scales

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
Nakisa Yaghobi ◽  
Mir Hamid Reza Ghoreishy
Keyword(s):  
Kinetic Models ◽  
Oxidative Coupling ◽  
Consumption Rate ◽  
Linear Regression Analysis ◽  
Fixed Bed ◽  
Space Velocity ◽  
Oxidative Coupling Of Methane ◽  
Power Law Model ◽  
Fixed Bed Reactors ◽  
Rate Of Reaction

The aim of this work is to develop and compare kinetic models for the oxidative coupling of methane (OCM) based on the gas hourly space velocity (GHSV) value and CH4/O2 ratio in two scales: laboratory and bench. The experiments were carried out in tubular fixed bed reactors at 1023 K, using 0.7-1.5 g and 30 g of perovskite titanate as the reaction catalyst for laboratory and bench scales, respectively. The various GHSVs (8000, 12000, 17000 h-1) and (3400, 4300, 5200 h-1) and methane to oxygen ratios (1, 2, 3, 4, 7.5) and (2, 2.5, 3) were selected for laboratory and bench scales, respectively. We have proposed a mechanism in which the consumption rate of methane is always twice of production rate of C2. A power law model was assumed for rate of reaction in terms of partial pressure of oxygen and methane. Using a linear regression analysis, the kinetic models were determined. Comparison of the calculated rate of reaction with the experimentally measured data confirmed the accuracy and applicability of the developed model for both scales.

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