SYSTEM AND METHOD FOR PREPARING HYDROGEN CHLORIDE AND AMMONIA GAS USING AMMONIUM CHLORIDE

摘要

Disclosed is a system and method for preparing hydrogen chloride and ammonia gas by using ammonium chloride. The system includes at least one decomposition reactor and at least one regeneration reactor, or includes a reactor that may serve as the decomposition reactor and may also serve as the regeneration reactor; the ammonium chloride in particle form is continuously added to the decomposition reactor via a solid particle feed apparatus on the reactor, and reacts with molten-state ammonium hydrogen sulfate to generate hydrogen chloride gas and an intermediate material; the intermediate material is discharged to the regeneration reactor, and heated therein to decompose into the ammonium hydrogen sulfate and the ammonia gas; and the ammonium hydrogen sulfate is returned to the decomposition reactor for recycling. The present disclosure provides an industrial feasible implementation solution for continuous decomposition of ammonium chloride, lowers volatilization of the ammonium chloride by continuously and slowly adding ammonium chloride in particle form, and improves utilization rate of the ammonium chloride.