I pointed out methane because the modern sensor pack can and will detect fuels or inert gases in the air and reduce/add the amount of fuel added added to approa

I pointed out methane because the modern sensor pack can and will detect fuels or inert gases in the air and reduce/add the amount of fuel added added to approach stoich. Then the combustion and catalytic process will break apart that ammonia and encourage its nitrogen to linger on its own as the hydrogens burn up or find some oxygens.