Influence of operating conditions in the hydrogen production by steam reforming of methanol: numerical approach

This work describes the unidimensional study of steam reforming of methanol at short pseudo-contact time. Steam reforming process (SRP) is important to hydrogen production as energetic vector. A compressible mathematical model 1-D is developed. Peppley kinetic mechanism (1999) is adopted. The numerical predictions show up the same trend as the experimental ones. A sensitivity analysis of the significant variables of the process is carried out (pressure, CH3OH/H2O ratio and temperature). Keywords: Methanol steam reforming; Hydrogen production; 1-D reactor model.

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Synthesis of CuO/ZnO/Al2O3/ZrO2/CeO2 nanocatalysts via homogeneous precipitation and combustion methods used in methanol steam reforming for fuel cell grade hydrogen production

RSC Advances ◽

10.1039/c6ra03858a ◽

2016 ◽

Vol 6 (62) ◽

pp. 57199-57209 ◽

Cited By ~ 23

Author(s):

Saeed Khajeh Talkhoncheh ◽

Mohammad Haghighi ◽

Shahab Minaei ◽

Hossein Ajamein ◽

Mozaffar Abdollahifar

Keyword(s):

Fuel Cell ◽

Hydrogen Production ◽

Steam Reforming ◽

Synthesis Method ◽

Methanol Steam Reforming ◽

Homogeneous Precipitation ◽

Steam Reforming Of Methanol

In this research the effects of synthesis method and CeO2 and ZrO2 promoters were studied in the steam reforming of methanol over a CuO/ZnO/Al2O3 nanocatalyst. Addition of ZrO2 and CeO2 reduces CO selectivity, while CeO2 is more effective.

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Production of Hydrogen With Low Carbon Monoxide Formation Via Catalytic Steam Reforming of Methanol

Journal of Fuel Cell Science and Technology ◽

10.1115/1.2349514 ◽

2006 ◽

Vol 3 (4) ◽

pp. 369-374 ◽

Cited By ~ 7

Author(s):

Sanjay Patel ◽

K. K. Pant

Keyword(s):

Carbon Monoxide ◽

Steam Reforming ◽

Contact Time ◽

Methanol Conversion ◽

Operating Conditions ◽

Molar Ratio ◽

Optimum Operating ◽

Steam Reforming Of Methanol ◽

Production Of Hydrogen ◽

Carbon Monoxide Formation

The production of hydrogen was investigated in a fixed bed tubular reactor via steam reforming of methanol (SRM) using CuO∕ZnO∕Al2O3 catalysts prepared by wet impregnation method and characterized by measuring surface area, pore volume, x-ray diffraction patterns, and scanning electron microscopy photographs. The SRM was carried out at atmospheric pressure, temperature 493-573K, steam to methanol molar ratio 1–1.8 and contact-time (W/F) 3–15kg cat./(mol/s of methanol). Effects of reaction temperature, contact-time, steam to methanol molar ratio and zinc content of the catalyst on methanol conversion, selectivity, and product yields was evaluated. The addition of zinc enhanced the methanol conversion and hydrogen production. The excess steam promoted the methanol conversion and suppressed the carbon monoxide formation. Different strategies have been mentioned to minimize the carbon monoxide formation for the steam reforming of methanol to produce polymer electrolyte membrane (PEM) fuel cell grade hydrogen. Optimum operating conditions with appropriate composition of catalyst has been investigated to produce more selective hydrogen with minimum carbon monoxide. The experimental results were fitted well with the kinetic model available in literature.

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Modelling of packed bed and coated wall microreactors for methanol steam reforming for hydrogen production

RSC Advances ◽

10.1039/d0ra06834a ◽

2020 ◽

Vol 10 (68) ◽

pp. 41680-41692

Author(s):

Sanaa Hafeez ◽

Elsa Aristodemou ◽

George Manos ◽

S. M. Al-Salem ◽

Achilleas Constantinou

Keyword(s):

Fluid Dynamics ◽

Computational Fluid Dynamics ◽

Hydrogen Production ◽

Steam Reforming ◽

Packed Bed ◽

Methanol Steam Reforming ◽

Steam Reforming Of Methanol ◽

Computational Fluid Dynamics Cfd

A Computational Fluid Dynamics (CFD) study has been conducted to assess the performance of packed bed and coated wall microreactors for the steam reforming of methanol with a CuO/ZnO/Al2O3 based catalyst (BASF F3-01).

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