CFD s tudy on partial oxidation of methane in fixed‐bed reactor

2019 ◽  
Vol 98 (3) ◽  
pp. 757-766
Author(s):  
Yonghui Li ◽  
Chao Lu ◽  
Xingxing Cao ◽  
Zhongfeng Geng ◽  
Minhua Zhang
Keyword(s):  
Partial Oxidation ◽  
Fixed Bed ◽  
Partial Oxidation Of Methane ◽  
Fixed Bed Reactor ◽  
Oxidation Of Methane

scholarly journals Oleylamine-modified impregnation method for the preparation of a highly efficient Ni/SiO2 nanocatalyst active in the partial oxidation of methane to synthesis gas

2017 ◽  
Vol 23 (2) ◽  
pp. 259-267
Author(s):  
Davarani Hosseini ◽  
Hassan Hashemipour ◽  
Alireza Talebizadeh
Keyword(s):  
Partial Oxidation ◽  
Fixed Bed ◽  
Catalytic Performance ◽  
Partial Oxidation Of Methane ◽  
Fixed Bed Reactor ◽  
High Catalytic Activity ◽  
Impregnation Method ◽  
Oxidation Of Methane ◽  
Temperature Programmed ◽  
H2 Yield

In this research, a novel modified wet impregnation method has been successfully developed to synthesize 5% Ni/SiO2 nanocatalyst with high catalytic activity and stability for the partial oxidation of methane. Oleylamine was used as a capping agent in the impregnation solution to improve Ni dispersion and interaction with silica surfaces. The product was analyzed and characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, N2 physisorption measurement and transmission electron microscopy (TEM) and temperature- -programmed H2 reduction (H2-TPR). Partial oxidation of methane over the modified catalyst was performed in a continues-flow fixed-bed reactor under atmospheric pressure at 700?C. The modified catalyst showed 91% CH4 conversion, 86% H2 yield and 95% CO selectivity, and these results almost remained constant within 5 h reaction on stream. The excellent catalytic performance of the catalyst was reasonably attributed to the small and uniform distribution of Ni nanoparticles on the support, and structural characterization confirmed this conclusion.

Distinct spatial changes of the catalyst structure inside a fixed-bed microreactor during the partial oxidation of methane over Rh/Al2O3

2007 ◽  
Vol 126 (1-2) ◽  
pp. 54-63 ◽  
Author(s):  
Stefan Hannemann ◽  
Jan-Dierk Grunwaldt ◽  
Niels van Vegten ◽  
Alfons Baiker ◽  
Pit Boye ◽  
...  
Keyword(s):  
Partial Oxidation ◽  
Fixed Bed ◽  
Partial Oxidation Of Methane ◽  
Catalyst Structure ◽  
Oxidation Of Methane ◽  
Spatial Changes

Modeling the partial oxidation of methane in a fixed bed with detailed chemistry

AIChE Journal ◽  
2004 ◽  
Vol 50 (6) ◽  
pp. 1289-1299 ◽  
Author(s):  
M. Bizzi ◽  
G. Saracco ◽  
R. Schwiedernoch ◽  
O. Deutschmann
Keyword(s):  
Partial Oxidation ◽  
Fixed Bed ◽  
Partial Oxidation Of Methane ◽  
Detailed Chemistry ◽  
Oxidation Of Methane

scholarly journals Axial Changes of Catalyst Structure and Temperature in a Fixed-Bed Microreactor During Noble Metal Catalysed Partial Oxidation of Methane

2009 ◽  
Vol 52 (10) ◽  
pp. 1360-1370 ◽  
Author(s):  
Stefan Hannemann ◽  
Jan-Dierk Grunwaldt ◽  
Bertram Kimmerle ◽  
Alfons Baiker ◽  
Pit Boye ◽  
...  
Keyword(s):  
Noble Metal ◽  
Partial Oxidation ◽  
Fixed Bed ◽  
Partial Oxidation Of Methane ◽  
Catalyst Structure ◽  
Oxidation Of Methane
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