AMMONIA FABRICATION METHOD

摘要

The present invention relates to a method for producing ammonia, wherein the ammonia is produced from water vapor and nitrogen gas supplied together, while carrying out a reforming process of hydrocarbon based fuel gas through a ion-conducting gas separation membrane by receiving oxygen absorbed in the reforming process of hydrocarbon based fuel gas from water vapor supplied to the opposite side to the side to which the hydrocarbon based fuel gas of the gas separation membrane is supplied through an ion permeation method. The method of the present invention comprises: a step of supplying hydrocarbon based fuel gas, while maintaining the temperature of 500°C to 700°C in a device for producing ammonia of which an inner space is divided into a first space and a second space by a gas separation membrane, which is a border, to allow one side of the gas separation membrane to contact with the first space; a step of supplying water vapor (H_2O) and nitrogen (N_2) gas with the pressure of 1 to 10 atm to allow the other side of the gas separation membrane to contact with the second space; a step of obtaining synthesis gas, which is a reaction product generated in the first space; and a step of obtaining ammonia which is produced in the second space. The method for producing ammonia of the present invention can produce ammonia from water vapor and nitrogen without electric energy supplied from outside as well as has an advantage of reforming hydrocarbon based fuel gas at the same time.