Abstract: A gas turbine system for utilizing waste fuel gas is described that includes a combustor that provides combusted fuel to the expansion stage of the turbine. The fuel gas entering the combustor by an inlet pipeline is a compressed admixture with air of a concentration below the lower explosive limit. The fuel gas/air admixture passes within a tube to pass to the combustion zone where combustion occurs only by reaction/self-combustion. The combusted gas passes by a tortuous path provided by an arrangement of baffles to the outlet duct. The exhausting combusted gas passes over the outer surface of the tube and gives up preheating heat to the inlet gas therein.

Abstract: A process for the gasification of carbonaceous fuels, for, inter alia, the production of chemicals and/or the generation of power is described, characterised in that there is employed, as starting material or part thereof, coal in the form of an aqueous slurry, the aqueous (water) content of the said slurry being at least 55 to 80% by weight.

Abstract: A combustor for the combustion of fuel gas is described. The fuel gas entering the combustor by an inlet pipeline is a compressed admixture with air of a concentration below the lower explosive limit. The fuel gas/air admixture passes within a tube to pass to the combustion zone where combustion occurs only by reaction/self-combustion. The combusted gas passes by a tortuous path provided by an arrangement of baffles to the outlet duct. The exhausting combusted gas passes over the outer surface of the tube and gives up preheating heat to the inlet gas therein. A gas turbine system for utilizing waste fuel gas also is described that includes a combustor as described that provides combusted fuel to the expansion stage of the turbine.