(under the class definition) Processes directed to positively adding an extraneous gaseous material to the solid carbonaceous material being acted upon.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
282+, for a process for contacting a solid with a gas or vapor to remove moisture or other vaporizable components and
subclasses 114+ and 122 for a rotating retort with means for gas or vapor contact with the treated material.
202, Distillation: Apparatus,
121, for a retort provided with means for injection of fluid, and see (1) Note and "(2) Search Class" thereunder for other apparatus in which fluid is injected. 208, Mineral Oils: Processes and Products,
126+, for a process directed to adding hot solids to a mineral oil and note "SEARCH THIS CLASS, SUBCLASS" and"SEARCH CLASS" under subclass 126.
502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making, especially
174+, and 416+ for a catalyst or sorbent containing carbonized material or a process of making such composition.
588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the use of gaseous material in a process for destroying hazardous or toxic waste.
