Abstract: The invention concerns a high-speed mass transfer tray with contact and separation elements (CSE) with each CSE consisting of an open, vertically aligned nozzle, which rests with its lower end on the tray and displays at least one row of annular holes, in which an axial swirler with two inclined vanes in the upper section and a firmly attached dense net of ribs arranged lengthwise along the nozzle axis at the lower section in the area of the annular holes is located. A cyclone separator located at the outlet end of the nozzle with deflection rings between separator and annular holes, characterized by the fact that the free cross-section of the CSEs for the gas flow measures 0.36 to 0.