Numerical study of sorption-enhanced methane steam reforming over Ni/Al2O3 catalyst in a fixed-bed reactor

Abstract This paper presents the description of the rhodium catalyst synthesis and the results of numerical study of the methane-steam reforming in a microstructured reactor-heat exchanger. The kinetics of the reforming reactions on a synthesized catalyst was determined using the numerical simulations and experimental data on activation energy of the methane reactions. It allows finding the characteristics of methane steam reforming that can be used for optimization of the microstructured reactor implementing the microchannel technology.

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Numerical study of methane steam reforming and methane combustion over the segmented and continuously coated layers of catalysts in a plate reactor

Fuel Processing Technology ◽

10.1016/j.fuproc.2016.12.002 ◽

2017 ◽

Vol 158 ◽

pp. 57-72 ◽

Cited By ~ 27

Author(s):

Mayur Mundhwa ◽

Christopher P. Thurgood

Keyword(s):

Steam Reforming ◽

Numerical Study ◽

Methane Combustion ◽

Methane Steam Reforming ◽

Methane Steam

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On the nature of carbon in Ni/$alpha;-Al2O3 catalyst deactivated by the methane-steam reforming reaction

Journal of Catalysis ◽

10.1016/0021-9517(81)90332-8 ◽

1981 ◽

Vol 70 (1) ◽

pp. 225-229 ◽

Cited By ~ 25

Author(s):

J DEDEKEN

Keyword(s):

Steam Reforming ◽

Methane Steam Reforming ◽

Methane Steam ◽

Al2o3 Catalyst

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Production of Hydrogen-Rich Gas by Oxidative Steam Reforming of Dimethoxymethane over CuO-CeO2/γ-Al2O3 Catalyst

Energies ◽

10.3390/en13143684 ◽

2020 ◽

Vol 13 (14) ◽

pp. 3684

Author(s):

Sukhe Badmaev ◽

Vladimir Sobyanin

Keyword(s):

Fuel Cell ◽

Partial Oxidation ◽

Steam Reforming ◽

Comparative Studies ◽

Catalytic Properties ◽

Fixed Bed ◽

Space Velocity ◽

Fixed Bed Reactor ◽

Production Of Hydrogen ◽

Al2o3 Catalyst

The catalytic properties of CuO-CeO2 supported on alumina for the oxidative steam reforming (OSR) of dimethoxymethane (DMM) to hydrogen-rich gas in a tubular fixed bed reactor were studied. The CuO-CeO2/γ-Al2O3 catalyst provided complete DMM conversion and hydrogen productivity > 10 L h−1 gcat−1 at 280 °C, GHSV (gas hourly space velocity) = 15,000 h−1 and DMM:O2:H2O:N2 = 10:2.5:40:47.5 vol.%. Comparative studies showed that DMM OSR exceeded DMM steam reforming (SR) and DMM partial oxidation (PO) in terms of hydrogen productivity. Thus, the outcomes of lab-scale catalytic experiments show high promise of DMM oxidative steam reforming to produce hydrogen-rich gas for fuel cell feeding.

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CFD Simulation of a Methane Steam Reforming Reactor

International Journal of Chemical Reactor Engineering ◽

10.2202/1542-6580.1593 ◽

2008 ◽

Vol 6 (1) ◽

Cited By ~ 4

Author(s):

Mohammad Taghi Sadeghi ◽

Mazaher Molaei

Keyword(s):

Skin Temperature ◽

Steam Reforming ◽

Methane Conversion ◽

Cfd Simulation ◽

Fixed Bed ◽

Three Dimensional ◽

Operating Conditions ◽

Fixed Bed Reactor ◽

Methane Steam Reforming ◽

Tehran Refinery

An industrial steam reforming reactor producing hydrogen is simulated using the three-dimensional Computational Fluid Dynamics (CFD) technique. The fixed bed reactor is filled with a nickel oxide catalyst. Effects of operating conditions such as temperature and steam to methane ratio on the reformer performance are investigated. Simulation results show that a steam to carbon ratio of more than 4 increases in the ratio does not have a notable influence on methane yield. Moreover, it shows that methane conversion is strongly affected by reactor skin temperature and higher skin temperature leads to an increase in the methane conversion. The results were successfully validated with industrial data obtained from a hydrogen plant at a Tehran refinery.

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