Life Technologies Corporation

Benjamin R Madsen

Nephi D Jones

Michael E Goodwin

Christopher D Brau

A system for performing a gas-liquid mass transfer includes a container bounding a compartment and having a top wall, a bottom wall, and an encircling sidewall extending therebetween. A tube has a first end and an opposing second end, the first end of the tube being disposed within the compartment of the container. A nozzle is disposed within the compartment of the container and has at least one outlet, the nozzle being coupled with the tube so that a gas can be passed through the tube and out the at least one outlet of the nozzle. The nozzle is sufficiently buoyant so that when a fluid is disposed within the compartment of the container, the nozzle floats on the fluid.

Methods and apparatus for gas stream mass transfer with a liquid

A system for performing a gas-liquid mass transfer includes a container bounding a compartment and having a top wall, a bottom wall, and an encircling sidewall extending therebetween. A first opening is formed on the container so as to communicate with the compartment. A liquid is disposed within the compartment and having a top surface disposed below the first opening. A gas is blown through the first opening so that the gas passes over at least a portion of the top surface of the liquid, the gas producing turbulence on the top surface of the liquid that is sufficient to produce a mass transfer between the gas and the liquid. A mixing element is disposed within the compartment.

A method and system for achieving a gas-liquid mass transfer includes delivering into a compartment of a container a liquid, the liquid having an exposed top surface disposed within the compartment. A stream of a gas is passed over the top surface of the liquid so that the stream of gas produces turbulence on the top surface that is sufficient to achieve the gas-liquid mass transfer. In one embodiment the liquid is a culture that includes cells or microorganisms and the mass transfer functions to oxygenate the culture sufficient to sustain the cells or microorganisms.

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Nibley, UT, United States of America

Benjamin R Madsen