Process and apparatus for mixing a gas and a liquid

Details Process and apparatus for mixing a gas and a liquid Process and apparatus for mixing a gas and a liquid

1986-06-10

1987-12-15

Chiesa, Richard L.

Gas and liquid contact apparatus

Contact devices

Rotating

209169, 210629, 210219, 261 361, 366295, 416189, B01F 304

Patent

active

RE0325627

ABSTRACT:
In a process for mixing a gas and a liquid in an apparatus having an axial flow down-pumping impeller located in a draft tube and preceded by a first baffle wherein a vortex and turbulence are created and gas is drawn into the vortex, the improvement comprising providing liquid velocity of at least one foot per second, increasing the turbulence, providing a second baffle below the impeller, and a high shear zone between impeller and the second baffle.

REFERENCES:
patent: 2130402 (1938-09-01), Textor
patent: 2293183 (1942-08-01), Walker
patent: 2928661 (1960-03-01), MacLaren
patent: 3806452 (1974-04-01), Walker
patent: 3846516 (1974-11-01), Carlson
patent: 3933640 (1976-01-01), Kirk et al.
patent: 4259267 (1981-03-01), Wang
patent: 4328175 (1982-05-01), Roeckel et al.
Litz, L. M.; "A Novel Gas-Liquid Stirred Tank Reactor"; Chemical Engineering Progress; Nov. 1985; pp. 36-39.

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