Two-zone Fluidised-bed Reactor

The invention relates to a fluidised-bed reactor (10, 20, 30, 40) comprising two zones (11,12, 21, 22; 31, 32; 41, 42), in which the upper zone (11, 21, 31, 41) has a different cross-section to the lower zone (12, 22, 32, 42). A zone with a reducing atmosphere is obtained in one of the two zones (11,12, 21, 22; 31, 32; 41, 42) and a zone with an oxidising atmosphere is obtained in the other zone. In a preferred embodiment of the invention, the cross-section of the upper zone (11, 21, 31, 41) is greater than that of the lower zone (12, 22, 32, 42), thereby producing a reducing atmosphere in the upper zone (11, 21, 31, 41) and an oxidising atmosphere in the lower zone (12, 22, 32, 42). In addition, rows of flow-distributing pipes are provided in the upper zone (11, 21, 31, 41) in order to prevent the appearance of dead zones.

Patents:
EP 2,301,658

Inventor(s): MENENDEZ SASTRE MIGUEL [ES]; HERGUIDO HUERTA JAVIER [ES]; TELLEZ ARISO CARLOS [ES]; SOLER HERRERO JAIME [ES]; GIMENO TOLOSA MARI

Type of Offer: Sale



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