Abstract: The invention comprises a method and apparatus for burning combustible fluids, such as biofuel byproducts and feedstocks, which are difficult to burn in a stable and clean manner. The method includes preheating the combustion zone prior to initiating flow of the combustible fluid and maintaining a minimum oxygen concentration in the oxidant gas.

Abstract: The invention comprises a method and apparatus for burning combustible fluids, such as biofuel byproducts and feedstocks, which are difficult to burn in a stable and clean manner. The method includes preheating the combustion zone prior to initiating flow of the combustible fluid and maintaining a minimum oxygen concentration in the oxidant gas.

Abstract: Method and apparatus for combusting and/or gasifying a generally viscous liquid or a slurry wherein the liquid or slurry are atomized in a central atomization device within a burner housing the central atomization device using a portion of a gaseous oxidant introduced into the burner to atomize the liquid or slurry as it exits the atomization device.

Abstract: A staged oxy-fuel burner for producing a generally flat fuel rich flame overlying a highly radiative fuel lean flame, the burner having a fuel passage terminating in a nozzle, the fuel passage and nozzle having a generally elongated cross-section, a housing of complementary shape surrounding the fuel passage, so that when fuel is introduced into the fuel passage and an oxidizer is introduced into the passage defined by a space between the housing and the fuel passage a generally flat fuel rich flame is produced at the nozzle end of the fuel conduit and a staging nozzle for introducing oxidizer underneath and in a shape complementary to said fuel rich flame to produce a highly radiative fuel lean flame under said fuel rich flame.

Abstract: Method and apparatus for reducing NOX production in an air-oxygen-fuel combustion process by creating post mix oxy-fuel flame and introducing air around said oxy-fuel flame at an angle of greater than 0.degree. to 90.degree. to the longitudinal axis of the oxy-fuel flame.

Abstract: An oxy-fuel burner for producing a generally flat luminous flame, the burner having fuel passage terminating in a nozzle, the fuel passage and nozzle having a generally elongated cross-section, a housing of complementary shape surrounding the fuel passage, so that when fuel is introduced into the fuel passage and an oxidizer is introduced into the passage defined by a space between the housing and the fuel passage a generally flat luminous flame is produced at the nozzle end of the fuel conduit. A precombustor having a cross-sectional shape complementary to that of flame end of the burner can be disposed on the flame end of the burner housing to further enhance combustion and protect the burner from the furnace atmosphere.

Abstract: Method and apparatus for generating oxy-liquid fuel with lowered NO.sub.x products using low pressure oxygen to atomize liquid fuel and produce an oxy-liquid fuel flame and surrounding the oxy-liquid fuel flame by an oxidizer, confining the oxy-liquid fuel flame and oxidizer in a precombustor for a distance determined by the rate of flame propagation and the diameter of the pre-combustor.

Abstract: Method and apparatus for generating an oxy-fuel flame with lowered NOX products by confining the oxy-fuel flame produced in a concentric orifice burner along a path defined by the rate of flame propagation and the diameter of the burner.

Abstract: Method and apparatus for generating an oxy-fuel flame with lowered NOX products by confining the oxy-fuel flame produced in a concentric orifice burner along a path defined by the rate of flame propagation and the diameter of the burner.

Abstract: An oxy-fuel system for reducing NO.sub.x formation in corrosive high temperature environments including a self-cooled adjustable oxy-fuel burner that generally produces a luminous flame having a concentric fuel rich phase and an outer surrounding oxidizer rich phase the flame directed through a precombustor mounted on the flame end of the burner the precombustor having a length to diameter (L/d) ratio fixed by the firing rate of the burner.