Process and reactor for conducting exothermal reactions in a cir

Details Process and reactor for conducting exothermal reactions in a cir Process and reactor for conducting exothermal reactions in a cir

1978-05-03

1980-11-11

Favors, Edward G.

Liquid heaters and vaporizers

Miscellaneous

110245, 110263, 431 7, 431170, F22B 102

Patent

active

042326338

ABSTRACT:
This invention relates to a process and a reactor for conducting exothermal reactions, for instance combustion, between relatively heavy and relatively light phases in a circulating fluidized bed having vertical cooling surfaces for absorption of the reaction heat resulting from the reaction. The light phase is divided into a primary flow for maintaining a dense conventional part bed and a secondary flow for maintaining a less dense rapid part bed above the dense bed. Said rapid part bed is recycled outside the part beds to the dense part bed for producing the circulating bed. Solid phase is continuously supplied to and withdrawn from the circulating bed, and the secondary flow is supplied to the circulating bed mainly below the cooling surfaces. The introduction of the secondary flow into the circulating bed is arranged within the circulating bed and the secondary flow prior to the introduction into the circulating bed is divided into a plurality of part flows, at least some of which part flows are introduced into the circulating bed, directed preferably substantially horizontally from the bed to the lateral boundary walls thereof.

REFERENCES:
patent: 2818049 (1957-12-01), Blaskowski et al.
patent: 3696793 (1972-10-01), Bell
patent: 3893426 (1975-07-01), Bryers
patent: 3910235 (1975-10-01), Highley
patent: 4130071 (1978-12-01), Porter

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