Methane Steam Reforming over an Ni-YSZ Solid Oxide Fuel Cell Anode in Stack Configuration

Abstract EN

The kinetics of catalytic steam reforming of methane over an Ni-YSZ anode of a solid oxide fuel cell (SOFC) have been investigated with the cell placed in a stack configuration.

In order to decrease the degree of conversion, a single cell stack with reduced area was used.

Measurements were performed in the temperature range 600–800°C and the partial pressures of all reactants and products were varied.

The obtained rates could be well fitted with a power law expression ( r ∝ P C H 4 0.7 ).

A simple model is presented which is capable of predicting the methane conversion in a stack configuration from intrinsic kinetics of the anode support material.

The predictions are compared with the stack measurements presented here, and good agreement is observed.