METHOD AND APPARATUS FOR THERMAL PROCESSING OF HIGH-ASH AND LOW-GRADE SOLID FUELS Russian patent published in 2008 - IPC C10B49/16 C10B53/06 C10G1/00 B09B3/00 

FIELD: thermal processing of low-grade solid fuels such as blacks and brown coal.

SUBSTANCE: method involves grinding low-grade solid fuels; drying; providing pyrolysis using solid heat-carrier in conjunction with hydrocarbon wastes to produce gaseous-vapor mixture and solid hydrocarbon residue; purifying and condensing gaseous-vapor mixture to produce valuable liquid and gaseous products; burning solid hydrocarbon residue to produce mixture of solid heat-carrier with combustion gases; separating combustion gases from solid heat-carrier. Hydrocarbon wastes are liquid hydrocarbons, bitumen, gas-tars and petroleum residues, which are preliminarily added to fuel after drying stage and to hot solid heat-carrier in contact chamber. Thereafter, resulted mixture is fed to pyrolysis stage in reactor. Apparatus for thermal processing of low-grade solid fuels such as blacks and brown coal is also described in Specification.

EFFECT: increased yield of low-sulfur hydrocarbon fuels including motor fuels due to additional pyrolysis of natural bitumen and petroleum residues.

6 cl, 2 dwg, 3 ex