FIELD: gas industry.;SUBSTANCE: present invention relates to a nozzle with a three-dimensional structure, especially well-suited for the homogeneous and anisotropic mixing of the gas phase and the dispersed solid phase moving in a counterflow; and to the use of the specified nozzle in the distillation section of catalytic cracking plants in a fluidized layer. The nozzle for the catalytic cracking plant, which allows for homogeneous contact between the gas phase and the emulsion phase moving in the counterflow, contains a three-dimensional structure consisting of repeating simple elements formed by secant planes, the specified three-dimensional simple element is complex volume bounded by three blades, each blade is located in one plane, and planes are formed in such a way that, taken in pairs, they always have an intersection, each blade is located in one of the secant planes, and various simple elements are distributed in a plane other than the secant planes, according to a step in the form of a triangle, the plane is called a distribution layer, while the final structure corresponds to a vertically stacked package of many parallel distribution layers, in each of these layers the distribution density of simple elements is the same, a nozzle in which these simple elements fit into a grid structure with a step in the form of a triangle. ;EFFECT: invention makes it possible to provide the best contact between the coked catalyst and the distillation gas, which allows, with the same general parameters, to reduce the gas consumption for distillation or the size of the distillation section.;9 cl, 8 dwg, 1 tbl
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