Patent ID: 8465276

Claim:
A burner for fluid fuels where prior to combustion of the fluid fuel the fluid fuel is mixed with an oxidizing agent, comprising: a fluid fuel supply that provides a liquid fuel for the burner; a gas supply that provides a gaseous fuel or a carrier stream for the burner; an oxidizing agent supply that provides an oxidizing agent for the burner; and a mixing passage directly connected to the fluid fuel supply, the gas supply and the oxidizing agent supply, the mixing passage being where the liquid fuel, carrier gas and oxidizing agent are mixed or where the gaseous fuel and oxidizing agent are mixed, wherein the fluid fuel supply and the gas supply are arranged such that the liquid fuel is injected in particulate form into the gas supply wherein the gas supply is used as a carrier stream for the liquid fuel in particulate form passing into a gas phase, wherein a mixing of the carrier stream containing the liquid fuel with the oxidizing agent is provided in the oxidizing agent supply which is connected to the gas supply, causing the liquid fuel to be mixed with the oxidizing agent in the oxidizing agent supply, wherein swirling vanes are arranged in the mixing passage such that the oxidation agent is at least partially swirled with the gaseous fuel or with the carrier stream containing the liquid fuel, and wherein the resulting mixture is fed into a combustion chamber, wherein the carrier stream is vaporous, wherein the vapor for the carrier stream is steam and free of molecular oxygen, and wherein the burner is operated with either liquid or gaseous fuels.