Thin multi-stage catalytic reactor with internal heat...

Details Thin multi-stage catalytic reactor with internal heat... Thin multi-stage catalytic reactor with internal heat...

2005-07-19

2005-07-19

Doroshenk, Alexa (Department: 1764)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

C422S139000, C422S141000, C422S142000, C422S145000, C422S146000, C422S186220, C422S232000, C422S236000

Reexamination Certificate

active

06919048

ABSTRACT:
An elongate reaction vessel and process includes at least two stages in the vertical direction in which an endothermic or exothermic catalytic reaction is carried out and comprises: a catalytic reaction zone (12a,12b) per stage (6, 7); introducing (2) a reaction fluid to a stage adapted for transverse motion of the fluid across the whole vertical extent of the reaction zone; introducing and extracting the catalyst; a heat exchanger (5a) for reaction fluids located inside the vessel between two successive reaction zones; means (6) for transporting reaction fluids from one stage to another preferably connected to the exchanger of the stage under consideration and to the inlet for reaction fluids of the subsequent stage; and means for recovering reaction fluids downstream of the last stage. The temperature variation in each zone and the temperature level are respectively adjusted by the thickness of each zone and by heat exchange.

REFERENCES:
patent: 3799866 (1974-03-01), Lengemann
patent: 4040794 (1977-08-01), Stone
patent: 4423022 (1983-12-01), Albano et al.
patent: 5623989 (1997-04-01), Kroger
patent: 5656243 (1997-08-01), Luckenbach et al.
patent: 1 175 454 (1959-03-01), None
patent: 2 129 913 (1972-11-01), None

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