(under subclass 400) Subject matter in which the solid feed or a portion thereof, or a portion of the product, is combusted with oxygen or oxygen-containing material for any purpose.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
428, for a process of cooling solids by mere contact with a gas, that is, a quenching process, per se.
166, Wells,
256+, for a method of underground combustion of carbonaceous materials.
299, Mining or In Situ Disintegration of Hard Material,
3+, for a method of in situ conversion of a solid material to a fluid. 518, Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof, appropriate subclass for a generalized hydrogenative conversion of a carbon oxide to a hydrocarbon mixture.
