Reactor for proximal and perpendicular radiation of electromagnetic waves on a thin fluid bed

Tubular reactor (1, 1′) for irradiation of EMWs (ElectroMagnetic Waves) with a substantially cylindrical shape, comprising:

• a pair of concentric tubes (2, 4) extending in a longitudinal direction (L) and comprising an outer tube (2), defined by an inner wall of outer tube (2) and by an outer wall of outer tube (2), and an inner tube (4), defined by an inner wall of inner tube and by an outer wall of inner tube, said outer and inner tubes being made of transparent material to the EMWs, being open at both ends, and forming a gap (6) defined by the inner wall of outer tube (2) and by the outer wall of inner tube (4), said gap being suitable for the passage of a material to be treated, in solid, liquid, gaseous and/or powdery form;
• a pair of opposed EMW emission sources, comprising an external source (10) and an internal source, said external and internal sources comprising each at least one EMW emitter, the external source (10) winding the outer wall of outer tube (2) with the EMW emission face of the external source facing the inside of the reactor, the internal source (8) winding the inner wall of inner tube with the EMW emission face of the internal source facing the outside of the reactor, said emission sources emitting EMWs with wavelengths comprised between the ultraviolet rays (UV) and infrared (IR) rays, in order to radiate perpendicularly, with respect to the longitudinal direction (L) of development of the reactor, the material to be treated flowing in the gap (6).