Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2006-11-21
2008-11-25
Barry, Chester T (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S629000
Reexamination Certificate
active
07455776
ABSTRACT:
A system and method for mixing high viscous liquids with gas is provided. The disclosed embodiments include a reactor or mixing vessel having a draft tube disposed therein, a gas injection subsystem adapted to inject gas into the reactor or mixing vessel proximate the entrance of the draft tube. The embodiments also include an agitator disposed within the draft tube which makes the draft tube the primary site for the gas-liquid mixing. In particular, the agitator is adapted to create gas bubbles having an average diameter between about 0.3 mm and 3.0 mm which are then ejected into the reactor or mixing vessel. The mass transfer efficiency associated with the present system and method is enhanced from the combined effect of gas dissolution into the high viscous liquid within the draft tube and greater bubble residence time within the high viscous liquid.
REFERENCES:
patent: 4256839 (1981-03-01), Solomons et al.
patent: 4454077 (1984-06-01), Litz
patent: 4919849 (1990-04-01), Litz et al.
patent: 5451348 (1995-09-01), Kingsley
patent: 5916491 (1999-06-01), Hills
patent: 5925290 (1999-07-01), Hills
patent: 6123446 (2000-09-01), Schuchardt
patent: 6135430 (2000-10-01), Bergman, Jr. et al.
patent: 6145815 (2000-11-01), Cheng et al.
patent: 6245237 (2001-06-01), Blough et al.
patent: 6461500 (2002-10-01), Hoage et al.
patent: 6464384 (2002-10-01), Kubera et al.
patent: 6761797 (2004-07-01), Kohlgruber et al.
patent: 6863817 (2005-03-01), Liu et al.
patent: 1258732 (1989-10-01), None
Fabiyi Malcolm Ezekiel
Novak Richard A
Barry Chester T
Hampsch Robert J.
Praxair Technology Inc.
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