PROCESS AND APPARATUS FOR PRODUCING CONCURRENTLY HYDROGEN OR AMMONIA AND METAL OXIDE NANOPARTICLES

摘要

A process for concurrently producing hydrogen or ammonia and metal oxide nanoparticles is disclosed. Steam (202) and a metal or a metal-containing compound (in the case of ammonia production, a metal nitride) are provided to a reaction zone (213) and reacted under conditions for obtaining gaseous hydrogen or ammonia, respectively. The metal or metal-containing compound is provided in the form of nanoparticles and/or nanodroplets with a BET surface area of at least 1.0 m<2>/g. The nanoparticles and/or nanodroplets may be produced insitu, either by rapid cooling of a stream of a vapor (203) of the metal or metalcontaining compound in a formation zone (212), or by feeding a stream of a precursor into the formation zone (212) and reacting the precursor with a reactant gas in the formation zone to obtain nanoparticles and/or nanodropllets. An apparatus (201) for carrying out the process is also disclosed.