US PATENT SUBCLASS 95 / 241
DEGASIFICATION OF LIQUID

Current as of: June, 1999
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95 /   HD   GAS SEPARATION: PROCESSES

241DEGASIFICATION OF LIQUID {7}
242  DF  .~> Defoaming
243  DF  .~> Plural successive degassing treatments {4}
253  DF  .~> Emulsion breaking or multiple liquid separating
254  DF  .~> And subsequent handling of evolved gas, stripping gas, or residue liquid {4}
260  DF  .~> By liquid flow modifying or mechanical agitating {2}
263  DF  .~> By stripping with gas {2}
266  DF  .~> By reduction of pressure (e.g., flashing, etc.)

DEFINITION

Classification: 95/241

DEGASIFICATION OF LIQUID:

(under the class definition) Process in which a gas is removed from a liquid.

(1) Note. In order for a patent to be placed here, the gas removed from the liquid must be normally gaseous at a temperature of 0 deg.C and a pressure of 760 mm Hg (e.g., hydrogen sulfide (H2S), carbon monoxide (CO), carbon dioxide (CO2), ethane (C2H6), ammonia (NH3), etc.). If, however, a constituent is at a temperature above its boiling temperature for a particular pressure, then the constituent is presumed to be a gas, and a patent to a process for removing the constituent will be placed here when the constituent is initially present in gaseous phase in the liquid and is removed from the liquid as a gas.

(2) Note. The removal of a volatile organic compound (e.g., ethanol (C2H5OH), gasoline, etc.) from a liquid is not taken to be degasification of a liquid for Class 95 when the volatile organic compound is initially present as a liquid mixed with another liquid. The removal of a volatile organic compound from a liquid may be found in Class 210 for liquid purification or separation or Class 203 for separatory distillation processes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30, for processes of degasification of a liquid by use of sound waves.

46, for processes of degasification of a liquid by selective diffusion of gases through a substantially solid barrier.

90+, for processes of degasification of a liquid by use of a solid sorbent. 156+, for processes of contacting a gas with a liquid and degasification of the contact liquid.

SEE OR SEARCH CLASS

96, Gas Separation: Apparatus,

155+, for degasifying means for liquid.

203, Distillation: Processes, Separatory, for processes for separating a liquid mixture by vaporizing and condensing at least a portion thereof to isolate in the condensed liquid (distillate) or in the unvaporized portion (residue) a comparatively pure compound that was present as such in the original mixture.

210, Liquid Purification or Separation, for processes of removing a volatile organic compound from a liquid wherein the volatile organic compound is initially present as a liquid mixed with another liquid.