Abstract: Ammonia-based photocatalytic reactor systems and methods are provided. Example features include coolant-circulation systems utilizing water and/or ammonia as a coolant for removing heat generated by LEDs comprising part of a photocatalytic reactor, a single compressor before the photoreactor inlet compressing ammonia gas anywhere from 1-113.4 Bar at Room temperature to 132.4 C, eliminating the need for second compressor and a choice for optimized reactor conversion, with temperature and pressure chosen to maintain the gas phase while appropriate for downstream separation, storing ammonia either from ?33 C to room temperature and from atmospheric pressure to 113.

Abstract: A reactor cell assembly having an annular volume, a top endcap fitting having a reactant gas inlet, a bottom compression endcap fitting having a product gas outlet, a photocatalyst packed bed positioned in the annular volume, a porous base filter to position the photocatalyst packed bed in the annular volume, and a light housing. At least one of an outer portion and an inner portion of the light housing comprises a circumferential array of photon emitters arranged to uniformly emit photons incident on the photocatalyst packed bed to activate continuous photo-induced gas-phase reactions as at least one gaseous reactant introduced via the gas inlet flows through the photocatalyst packed bed and at least one resultant gaseous product exits via the gas outlet.