Ammonia manufacturing method

An ammonia manufacturing method performed using an electrochemical reaction unit that includes a first electrolytic bath, a first electrode disposed in the first electrolytic bath, a second electrolytic bath, a second electrode disposed in the second electrolytic bath, and a separator disposed between the first electrolytic bath and the second electrolytic bath, the ammonia manufacturing method comprising:

• a first electrolytic medium circulation step of circulating a first electrolytic medium between the first electrolytic bath and a first tank disposed outside the first electrolytic bath:
• a second electrolyte circulation step of circulating a second electrolyte containing nitrogen and a nitrogen activation catalyst between the second electrolytic bath and a second tank disposed outside the second electrolytic bath:
• a proton production step of producing protons in the first electrolytic bath;
• and
• in the second electrolytic bath, an ammonia production step of producing ammonia by transferring the electrons fed from the second electrode and the protons into the nitrogen activation catalyst to which nitrogen is fixed.