(under subclass 210) Process in which the surface extending mass has one or more openings through which the gaseous fluid mixture or liquid passes in order to increase the contact of the gas with the liquid (e.g., use of perforated plates, bubble cap trays, mesh screens, parallel wires, parallel bars, etc.).
SEE OR SEARCH CLASS
261, Gas and Liquid Contact Apparatus,
108+, for apparatus specially adapted to produce an intimate contact between gases and liquids including stationary baffles over which the liquids flow in contact with gases. See particularly subclass 113 for perforated baffles and subclass 114.2 for apparatus utilizing bubble caps.
