I'm interested in controlled oxidation of nickel in a methane reformer with diameter ~3 m and height ~1.5 m. In this reactor, CH4 is converted into H2 and CO, and CO into H2 and CO2 but for this problem, we assume that the methane and water stopped flowing in the reactor and that all these substances are not present in it during the oxidation process. So the idea for the nickel oxidation is to let some air flow in the reactor by controlling the following three parameters:
The percentage of oxygen in the air I let flow in the reactor.
Its flow rate.
The temperature of the air injected
What are the realistic values that these three parameters can take? I've searched the internet but I could not find any information about how the air generation step (that's how it's called) works and what exactly is producing the air flow (turbine?).