still for framstellning by aqueous transportable brenslesuspension with hazing from carbonaceous material

摘要

A process for converting moist carbonaceous materials into an aqueous slurry suitable for pipeline transport and subsequent combustion in furnace burners such as power boilers and the like. In accordance with the process, a moist carbonaceous feed material such as peat, brown coal, lignite, subbituminous coal, waste agricultural cellulosic materials and the like is subjected to an autoclaving treatment forming a thermally upgraded solid reaction product which is comminuted, if necessary, to a desired particle size and thereafter is slurried with a controlled amount of the recovered condensate derived from the process including the condensible organic constituents producing a fuel-grade slurry of enhanced heating value and stability. This slurry can be concentrated by centrifugation and solvent extraction before being burned.