US PATENT SUBCLASS 95 / 149
LIQUID CONTACTING (E.G., SORPTION, SCRUBBING, ETC.)

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

149LIQUID CONTACTING (E.G., SORPTION, SCRUBBING, ETC.) {20}
150  DF  .~> Including foaming of liquid to aid in the separation
151  DF  .~> Mechanical agitation of liquid body to contact gaseous fluid mixture
152  DF  .~> Coagulating or flocculating agent
153  DF  .~> Hydrate inhibitor
154  DF  .~> Surfactant or wetting agent
155  DF  .~> Defoaming or antifoaming agent
156  DF  .~> And degasification of a liquid {7}
187  DF  .~> And recycle or reuse of contact liquid for further contact {6}
204  DF  .~> And recycle of gas for further contact
205  DF  .~> And separation of solid from contact liquid
206  DF  .~> And separation of liquid from contact liquid {3}
210  DF  .~> On surface extending mass {2}
214  DF  .~> And filtration of gas {1}
216  DF  .~> And deflection {4}
223  DF  .~> In plural serial stages {1}
226  DF  .~> Gaseous fluid mixture discharged against or beneath surface of liquid body
227  DF  .~> With heating
228  DF  .~> With cooling {1}
230  DF  .~> Inorganic gas, liquid particle, or solid particle sorbed (e.g., vapor, mist, dust, etc.) {6}
237  DF  .~> Organic gas, liquid particle, or solid particle sorbed (e.g., vapor, mist, dust, etc.) {3}

DEFINITION

Classification: 95/149

LIQUID CONTACTING (E.G., SORPTION, SCRUBBING, ETC.):

(under the class definition) Process in which the fluid mixture is contacted with a liquid.

(1) Note. The contact of the fluid mixture with a liquid generally results in separation of a gas, solid particles, or liquid particles from a gaseous fluid mixture (e.g., sorption, scrubbing, etc.). The contact of the fluid mixture with a liquid does not have to cause separation of the mixture, however, but may be used for other reasons (e.g., to humidify a gas, etc.). As long as there is separation of the fluid mixture by some process of this class along with the contacting of the mixture with a liquid for reasons other than separation, the patent will be placed here (e.g., filtration plus humidification, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

44, for selective diffusion of gases through an immobilized liquid.

64+, and 71+, for electric or electrostatic field processes combined with liquid addition to the gas.

SEE OR SEARCH CLASS

96, Gas Separation: Apparatus,

243+, for gas separation apparatus using gas and liquid contact means combined with means to further handle the process constituents before, during, or after separation. See the class line to Class 261 in section III of this class for further details about gas and liquid contact apparatus and processes.

261, Gas and Liquid Contact Apparatus, for gas and liquid contact apparatus, per se, with or without separation, and for gas and liquid contact processes, per se, without separation (e.g., humidification, etc.). See the class line to Class 261 in section III of this class for further details about gas and liquid contact apparatus and processes.

436, Chemistry: Analytical and Immunological Testing,

168, for processes wherein the basis for analysis is an optical result of a chemical reaction that is measured mechanically or visually, including liquid sorption of a gas.

585, Chemistry of Hydrocarbon Compounds,

833+, for processes in which a mixture of a hydrocarbon compound with another substance is treated to recover that same compound in a more usable condition, that is, a purer or more desirable condition, by a treatment which comprises separating the hydrocarbon from the other substance by addition of an extraneous agent (e.g., solvent, etc.).