Startup openings in a three-phase gaslift loop reactor

Details Startup openings in a three-phase gaslift loop reactor Startup openings in a three-phase gaslift loop reactor

1991-04-22

1993-10-26

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including internal mixing or stirring means

422139, 422140, 435288, 435314, B01F 500

Patent

active

052563804

ABSTRACT:
Reduction of the hysteresis effects in a gaslift loop reactor is effected with a draft tube for solids suspension. The gas or liquid flow rates for generating complete solid suspension are significantly higher than the flow rates necessary for maintaining that state. These hysteresis effects may be significantly reduced and a substantial reduction is obtained for the energy necessary to obtain the state of suspension. Preferably a draft tube which comprises openings through which an extra circulation takes place especially during the startup phase is used.

REFERENCES:
patent: 3236744 (1966-02-01), Yamaha
patent: 3957585 (1976-05-01), Malick
Hysteresis Effects in Suspended Solid Particles in Bubble Columns With and Without Draft Tube, Heck, J. and Onken, U., Chemical Engineering Science, vol. 42, No. 5, pp. 1211-1212.

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