(under subclass 146) Processes which include a significant treatment of the contact solid to remove therefrom adsorbed or occluded material, other than contaminant coke or carbon.
(1) Note. Treatments to remove contaminant coke or carbon are not included herein even though the treatment may simultaneously remove other occluded or adsorbed material.
(2) Note. "Purging" or "stripping" claimed broadly by name only or processes including broadly the use of steam as a stripping medium are not considered significant purging or stripping steps for this subclass. The use of steam in a particular manner, e.g., with agitation, or the use of other purging mediums to remove occluded hydrocarbons, flue gases, etc., are examples of significant purging for this subclass.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
402, and 443+ for processes of contacting solids with gases, as for example for drying.
