<Dd> C H + n H O ⇌ (n + ​ ⁄) H + n CO </Dd> <Dl> <Dd> CO + 3 H ⇌ CH + H O </Dd> </Dl> <Dd> CO + 3 H ⇌ CH + H O </Dd> <P> Water - gas shift: </P>

Hydrogen gas is produced by the reaction of methane and steam