Autothermal reforming and partial oxidation of n-hexadecane via Pt/Ni bimetallic catalysts on ceria-based supports

Abstract: A growing interest in hydrogen use has been observed due to its environmentally friendlycharacteristics. However, the current methods of hydrogen production from natural gas are based on steammethane reforming, partial oxidation, and autothermal reforming. These processes produce a mixture ofhydrogen and carbon oxides and after water-gas shift reactions, in order to increase the production ofhydrogen, a large amount of CO2 is generated and possibly released in the atmosphere. In this context, thecatalytic methane decomposition has been receiving attention as an alternative route to the production ofCOx-free hydrogen. It has been reported that the appropriate group of catalysts and reactors can lead to aviable process. Current investigations attempt to increase the yield of hydrogen. The present work aims toevaluate the processes currently used for that and to present the preliminary results obtained with cobaltcatalysts for methane decomposition. A comparison between the conventional processes and the suggestedones is made, and the major advantages in the use of methane decomposition are presented.

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Partial oxidation and autothermal reforming of heavy hydrocarbon fuels with non-equilibrium gliding arc plasma for fuel cell applications

10.17918/etd-3199 ◽

2021 ◽

Author(s):

Michael J. Gallagher

Keyword(s):

Fuel Cell ◽

Partial Oxidation ◽

Autothermal Reforming ◽

Hydrocarbon Fuels ◽

Arc Plasma ◽

Gliding Arc ◽

Gliding Arc Plasma ◽

Heavy Hydrocarbon ◽

Non Equilibrium

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Hydrogen Production of a Heavy Hydrocarbon Fuel Autothermal Reformer on NiO-Rh Based Monolithic Catalysts

ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology ◽

10.1115/fuelcell2014-6624 ◽

2014 ◽

Author(s):

Xinhai Xu ◽

Shuyang Zhang ◽

Peiwen Li

Keyword(s):

Bimetallic Catalysts ◽

Hydrocarbon Fuel ◽

Autothermal Reforming ◽

Screening Tests ◽

Reactor Operation ◽

Heavy Hydrocarbon ◽

Operation Temperature ◽

Operation Conditions ◽

Catalysts Preparation ◽

Reactor Temperature

Catalytic autothermal reforming (ATR) is one promising technology to effectively produce hydrogen and syngas from heavy hydrocarbon fuels for fuel cell applications. The present study describes the development of a cylindrical 1.5 kWe scale autothermal reformer for on-board SOFCs. NiO-Rh bimetallic catalysts supported on 400 cpsi cordierite monoliths were experimentally examined in the reformer. Promoters including cerium, potassium and lanthanum were introduced in the catalysts preparation to improve their performance. Dodecane (C12H26) was used as a surrogate for desulfurized commercial Jet-A fuel (C11.6H22.3) to study the hydrogen selectivity and efficiency of ATR reactions with different catalysts. Gas chromatography (GC) equipped with TCD detector was used to monitor the concentration of H2, CO, CO2 and N2 in the reformate. The catalysts screening tests were performed at the same operation conditions including inlet temperatures, reactor temperature, steam to carbon ratio and oxygen to carbon ratio. The best catalyst was reported to have efficiency about 85 percent. The optimized reactor operation temperature was reported as 700 °C.

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