FIELD: methods of production of synthesis gas for ammonia producing process. SUBSTANCE: proposed method includes delivery of starting gas; method is based on use of at least one pair of reactors used for reforming; each reactor has side of performing method and delivery of fuel and side of performing combustion; each pair of reactors is connected in parallel on side of performing method and delivery of fuel and in series on side of performing combustion; temperature of flame in each pair of reactors is controlled by means of delivery of excess air for combustion to first reactor from said pair of reactors and oxygen-depleted furnace gas from first reactor for burning in second reactor of said pair of reactors. EFFECT: reduced cost of process. 11 cl, 2 dwg
