FIELD: methods and devices for circulation of solid particles in fluidized solids reactor. SUBSTANCE: particles circulating inside fluidized solids reactor move down with respect to wall forming reactor chamber. Located in fluidized bed of solids is chamber for particles. Chamber has inlet holes to let solid particles flow from reactor chamber to chamber for particles, and outlet hole for recirculation of solid particles from chamber for particles to reactor chamber. Chamber for particles has area for collection of particles in upper end wall with area A of horizontal projection. Inlet holes for solid particles are located in upper end wall of chamber for particles. Inlet holes have common open area B which makes up less than half of collecting area A. Surfaces for heat transfer are located in chamber for particles. EFFECT: increased possibilities for collection and classification of particles circulating inside fluidized solids reactor. 24 cl, 7 dwg
