Method and system for preparing hydrogen chloride and ammonia gas by using ammonium chloride

A system for preparing hydrogen chloride gas and ammonia gas by using ammonium chloride, wherein

• the system comprises a set of reactors;
• the ammonium chloride and ammonium hydrogen sulfate are subjected to a decomposition reaction in the set of reactors to output the hydrogen chloride gas and obtain an intermediate material;
• the intermediate material is subjected to a regeneration reaction to output the ammonia gas and obtain the ammonium hydrogen sulfate;
• and
• the decomposition reaction and the regeneration reaction take place in the set of reactors which are communicated, and the ammonium chloride is continuously added to the set of reactors in solid particle form,
• wherein the set of reactors comprises:
• a set of decomposition reactors, configured to conduct the decomposition reaction, and comprising:
• a solid particle feed apparatus, a liquid feed port, a liquid discharge port and an exhaust port;
• and
• a set of regeneration reactors, configured to conduct the regeneration reaction, and comprising:
• a liquid feed port, a liquid discharge port and an exhaust port;
• at least one desorption apparatus, connected to the set of decomposition reactors, and comprising a liquid feed port, a carrier gas input port, a liquid discharge port and an exhaust port,
• wherein the liquid feed port of the at least one desorption apparatus is connected to the liquid discharge port of the set of decomposition reactors, the liquid discharge port of the at least one desorption apparatus is connected to the liquid feed port of the set of regeneration reactors, the liquid discharge port of the set of decomposition reactors is communicated with the liquid feed port of the set of regeneration reactors via a connecting tube, and the liquid feed port of the set of decomposition reactors is communicated with the liquid discharge port of the set of regeneration reactors via a connecting tube,
• wherein the set of decomposition reactors refers to multiple decomposition reactors, the multiple decomposition reactors are connected serially,
• wherein the set of regeneration reactors refers to multiple regeneration reactors, the multiple regeneration reactors are connected in series or in parallel.