Hydrogen production for fuel cell application in an autothermal micro-channel reactor

Micro-structured string-reactor for autothermal production of hydrogen

Novel micro-structured string-reactor designed as catalytically active wires placed in parallel into a tube was developed. The small diameter of the channels (∼100 m) leads to a short radial diffusion time, a narrow residence time distribution (RTD), and a low pressure drop. This reactor was applied for the oxidative steam-reforming of methanol (OSRM) to produce hydrogen in autothermal mode for...

Compact string reactor for autothermal hydrogen production

This study addresses the development of a compact reactor for oxidative steam-reforming of methanol (OSRM) to produce hydrogen in autothermal mode for fuel cells. The string reactor uses catalytically active brass wires with a diameter of 500 mm placed in parallel into a tube. The micro-channels in the reactor for gases are formed between the wires presenting hydrodynamics similar to the one in...

Effect of Catalytic Cylinders on Autothermal Reforming of Methane for Hydrogen Production in a Microchamber Reactor

A new multicylinder microchamber reactor is designed on autothermal reforming of methane for hydrogen production, and its performance and thermal behavior, that is, based on the reaction mechanism, is numerically investigated by varying the cylinder radius, cylinder spacing, and cylinder layout. The results show that larger cylinder radius can promote reforming reaction; the mass fraction of me...

Fuel processing microreactors for hydrogen production in micro fuel cell applications

The use of microreactors for in-situ and on-demand chemical processing and analysis is gaining increasing importance as the field of microreaction engineering matures from the stage of being regarded as a theoretical concept to a technology with significant industrial applications [1,2,3]. The objective of this work is to demonstrate a working microreaction system for use as a sustained source ...

Spiral Methanol to Hydrogen Micro-Reformer for Fuel Cell Applications