A Comparative Simulation Study on Oxidative Coupling of Methane in Fixed-Bed and Membrane Reactors

1997 ◽  
Vol 36 (9) ◽  
pp. 3583-3593 ◽  
Author(s):  
Y. K. Kao ◽  
L. Lei ◽  
Y. S. Lin
Keyword(s):  
Simulation Study ◽  
Oxidative Coupling ◽  
Fixed Bed ◽  
Oxidative Coupling Of Methane ◽  
Membrane Reactors

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.

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

scholarly journals In situ X-ray diffraction computed tomography studies examining the thermal and chemical stabilities of working Ba0.5Sr0.5Co0.8Fe0.2O3−δ membranes during oxidative coupling of methane

2020 ◽  
Vol 22 (34) ◽  
pp. 18964-18975
Author(s):  
Dorota Matras ◽  
Antonis Vamvakeros ◽  
Simon D. M. Jacques ◽  
Vesna Middelkoop ◽  
Gavin Vaughan ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Solid State ◽  
Oxidative Coupling ◽  
Structural Changes ◽  
Oxidative Coupling Of Methane ◽  
Membrane Reactors ◽  
Solid State Chemistry ◽  
X Ray Diffraction ◽  
X Ray

In situ XRD-CT and post-reaction SEM/EDX were used to study the solid-state chemistry and structural changes of Ba0.5Sr0.5Co0.8Fe0.2O3−δ membrane reactors during the oxidative coupling of methane reaction.

scholarly journals Real-time multi-length scale chemical tomography of fixed bed reactors during the oxidative coupling of methane reaction

2020 ◽  
Vol 386 ◽  
pp. 39-52 ◽  
Author(s):  
Antonis Vamvakeros ◽  
Dorota Matras ◽  
Simon D.M. Jacques ◽  
Marco di Michiel ◽  
Stephen W.T. Price ◽  
...  
Keyword(s):  
Real Time ◽  
Oxidative Coupling ◽  
Fixed Bed ◽  
Oxidative Coupling Of Methane ◽  
Length Scale ◽  
Fixed Bed Reactors

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
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