US PATENT SUBCLASS 422 / 190
.~.~.~ Plural solid, extended surface, fluid contact reaction stages each containing; e.g., inert Raschig rings, particulate sorbent, particulate or monolithic catalyst, etc.

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

129  DF  CHEMICAL REACTOR {28}
188  DF  .~ Including plural reaction stages {2}
189  DF  .~.~ And means providing discrete sequential reaction stages; e.g., train, etc. {2}
190.~.~.~ Plural solid, extended surface, fluid contact reaction stages each containing; e.g., inert Raschig rings, particulate sorbent, particulate or monolithic catalyst, etc. {2}
191  DF  .~.~.~.~> Superimposed reaction stages in single reaction chamber
192  DF  .~.~.~.~> At least one reaction stage formed of fixed, annularly shaped bed of contact material and means directing reaction stream therethrough substantially perpendicular to longitudinal axis of bed

DEFINITION

Classification: 422/190

Plural solid, extended surface, fluid contact reaction stages each containing; e.g., inert Raschig rings, particulate sorbent, particulate or monolithic catalyst, etc.:

(under subclass 189) Apparatus including solid extended surface fluid contact reaction means, i.e., means providing a relatively large solid contact surface area within the reaction zone wherein large surface area within the reaction zone wherein large surface area presents multiple reaction sites for contact by the reaction mixture and, thereby, enhance the rate and/or the completeness of the reaction, including; e.g., inert Raschig rings, particulate absorbent, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

177+, for this apparatus used in a waste gas purifier.

211, for this structure, per se.