we have 2000 MT/day production rate , 21 days shut down per year .natural gas composition as the following : methane =94.4mole% , ethane .80 mol%. propane .03%. nitrogen 4.24%. hydrogen 0.00 . argon 0.00 . oxygen 0.00 . water 0.00 . carbondioxide 0.44 . carbonmonoxide 0.00 . ammonia 0.00 .ammonia product composition 99.99 mole% .calculate Auto-thermal reforming material balance for the plant ( hand calculation as well as summary table use Autothermal reforming technology )