Abstract of WO 9733828 (A1) The invention relates to a method for the production of ammonia, wherein a hydrogen-comprising discharge flow is utilized for the depletion of oxygen in air. Subsequently the oxygen-depleted air is - as nitrogen-comprising flow - brought into contact with water gas, which is the hydrogen - comprising flow. Oxygen depletion is carried out with the aid of a fuel cell installation (2). The method according to the invention is energy-savin