SOLID FEED TREATMENT UNDER SUPERCRITICAL CONDITIONS:
Collection of patents in which a solid hydrocarbonaceous mineral of the type of subclasses 390+ or 400+ is treated to remove mineral oil therefrom, or to convert solid materials therein to mineral oil-like mixture by the use, in any step of the treatment, of a treating gas in its supercritical
stated. The treating agent may be a liquid, solid or gas at normal conditions, but the treatment conditions must include temperature near the critical temperature of the extractant. Under such conditions, the gaseous agent can not be liquified at any pressure, although the fluid density may be increased significantly by applying sufficient pressure. The agent need not necessarily be a solvent for the hydrocarbonaceous materials at normal conditions. The treatment may be designed to produce any sort of chemical, physical or physico-chemical result.
