FIELD: downflow multilayer catalytic reactors. SUBSTANCE: downflow multilayer reactor includes various distributing devices each of which has accommodated in its center mixing chamber and circular receiving and mixing trough surrounding the mixing chamber. The latter has inlet on one side, outlet on bottom wall, and inlet for cooling gas located in chamber upper part above outlet. Separating wall crosses circular trough adjacent to inlet in direction of outlet for circulation of part of liquid accumulated in trough round mixing chamber to inlet. It provides good mixing of liquid circulating over trough with liquid flowing from catalyst layer. Turbulent and spiral flow formed inside chamber mixes liquid and entraps cooling gas in flow of liquid and gas. EFFECT: higher efficiency. 20 cl, 3 dwg
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