Methods and apparatus for gas stream mass transfer with a liquid

A system for performing a gas-liquid mass transfer comprising:

• a) a container bounding a compartment and having an upper end wall, a lower end wall, and an encircling sidewall extending therebetween;
• b) a tube having a first end and an opposing second end, the first end of the tube being disposed within the compartment of the container;
• and
• c) a nozzle disposed within the compartment of the container and having at least one first outlet, the nozzle being coupled with the first end of the tube so that a gas can be passed through the tube and out the at least one first outlet of the nozzle, the nozzle being sufficiently buoyant so that when a fluid is disposed within the compartment of the container, the nozzle floats on the fluid.