CAPE-OPEN

I calculated the theoretical flame temperature for the complete combustion of CH4 with 20% excess air to be 1801 C using a Gibbs Reactor Unit. What could someone expect the maximum temperature to be if using a catalytic oxidizer? The same? Which Reactor Unit could be used for the simulation?

Are you still using the same 20% excess air?

In this case the use of a catalyst should not affect the heat balance, nor the conversion.

Typically one would use a catalyst as to not require such high temperatures though.