Hydrogen production from steam reforming of methanol over CuO/ZnO/Al2O3 catalysts: Catalytic performance and kinetic modeling

2016 ◽  
Vol 24 (9) ◽  
pp. 1186-1194 ◽  
Author(s):  
Yu Wan ◽  
Zhiming Zhou ◽  
Zhenmin Cheng
Keyword(s):  
Hydrogen Production ◽  
Kinetic Modeling ◽  
Steam Reforming ◽  
Catalytic Performance ◽  
Steam Reforming Of Methanol

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 ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57199-57209 ◽  
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.

Hydrogen production from oxidative steam reforming of methanol: Effect of the Cu and Ni impregnation on ZrO2 and their molecular simulation studies

2012 ◽  
Vol 37 (11) ◽  
pp. 9018-9027 ◽  
Author(s):  
P. López ◽  
G. Mondragón-Galicia ◽  
M.E. Espinosa-Pesqueira ◽  
D. Mendoza-Anaya ◽  
Ma.E. Fernández ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Molecular Simulation ◽  
Steam Reforming ◽  
Simulation Studies ◽  
Steam Reforming Of Methanol

scholarly journals High catalytic performance of Fe-Ni/Palygorskite in the steam reforming of toluene for hydrogen production

2018 ◽  
Vol 226 ◽  
pp. 827-837 ◽  
Author(s):  
Xuehua Zou ◽  
Tianhu Chen ◽  
Ping Zhang ◽  
Dong Chen ◽  
Junkai He ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Steam Reforming ◽  
Catalytic Performance ◽  
Steam Reforming Of Toluene

Catalytic performance of plate-type Cu/Fe nanocomposites on ZnO nanorods for oxidative steam reforming of methanol

2011 ◽  
Vol 47 (5) ◽  
pp. 1473-1475 ◽  
Author(s):  
Chien-Cheng Li ◽  
Ran-Jin Lin ◽  
Hong-Ping Lin ◽  
Yu-Kai Lin ◽  
Yan-Gu Lin ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Zno Nanorods ◽  
Catalytic Performance ◽  
Steam Reforming Of Methanol ◽  
Plate Type

Hydrogen Production for PEM Fuel Cells via Oxidative Steam Reforming of Methanol Using Cu-Al Catalysts Modified With Ce and Cr

2006 ◽  
Author(s):  
Sanjay Patel ◽  
K. K. Pant
Keyword(s):  
Fuel Cell ◽  
Hydrogen Production ◽  
Surface Area ◽  
Steam Reforming ◽  
Pem Fuel Cell ◽  
Oxide Catalysts ◽  
Molar Ratio ◽  
X Ray ◽  
Steam Reforming Of Methanol ◽  
Al Oxide

The performance of Cu-Ce-Al-oxide and Cu-Cr-Al-oxide catalysts of varying compositions prepared by co-precipitation method was evaluated for the PEM fuel cell grade hydrogen production via oxidative steam reforming of methanol (OSRM). The limitations of partial oxidation and steam reforming of methanol for the hydrogen production for PEM fuel cell could be overcome using OSRM and can be performed auto-thermally with idealized reaction stoichiomatry. Catalysts surface area and pore volume were determined using N2 adsorption-desorption method. The final elemental compositions were determined using atomic absorption spectroscopy. Crystalline phases of catalyst samples were determined by X-ray diffraction (XRD) technique. Temperature programmed reduction (TPR) demonstrated that the incorporation of Ce improved the copper reducibility significantly compared to Cr promoter. The OSRM was carried out in a fixed bed catalytic reactor. Reaction temperature, contact-time (W/F) and oxygen to methanol (O/M) molar ratio varied from 200–300°C, 3–21 kgcat s mol−1 and 0–0.5 respectively. The steam to methanol (S/M) molar ratio = 1.4 and pressure = 1 atm were kept constant. Catalyst Cu-Ce-Al:30-10-60 exhibited 100% methanol conversion and 152 mmol s−1 kgcat−1 hydrogen production rate at 300°C with carbon monoxide formation as low as 1300 ppm, which reduces the load on preferential oxidation of CO to CO2 (PROX) significantly before feeding the hydrogen rich stream to the PEM fuel cell as a feed. The higher catalytic performance of Ce containing catalysts was attributed to the improved Cu reducibility, higher surface area, and better copper dispersion. Reaction parameters were optimized in order to maximize the hydrogen production and to keep the CO formation as low as possible. The time-on-stream stability test showed that the Cu-Ce-Al-oxide catalysts subjected to a moderate deactivation compared to Cu-Cr-Al-oxide catalysts. The amount of carbon deposited onto the catalysts was determined using TG/DTA thermogravimetric analyzer. C1s spectra were obtained by surface analysis of post reaction catalysts using X-ray photoelectron spectroscopy (XPS) to investigate the nature of coke deposited.

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