Abstract: A staged gas injection system for a flare tip that can discharge waste gas into a combustion zone is provided. The staged gas injection system includes, for example, a first gas injection assembly and a second stage gas injection assembly. The first gas injection assembly is configured to inject a gas (for example steam or a gas other than steam) at a high flow rate and a high pressure into the flare tip or the combustion zone. The second gas injection assembly is configured to inject a gas (for example, steam and/or a gas other than steam) at a low flow rate and a high pressure into the flare tip or the combustion zone. A flare tip including the staged gas injection system is also provided.

Abstract: A staged steam injection system for a flare tip that can discharge waste gas into a combustion zone is provided. The staged steam injection system includes, for example, a first gas injection assembly and a second stage gas injection assembly. The first gas injection assembly is configured to inject steam at a high flow rate and a high pressure into the flare tip or the combustion zone. The second gas injection assembly is configured to inject a gas (for example, steam and/or a gas other than steam) at a low flow rate and a high pressure into the flare tip or the combustion zone. A flare tip including the staged steam injection system is also provided.

Abstract: A staged steam injection system for a flare tip that can discharge waste gas into a combustion zone is provided. The staged steam injection system includes, for example, a first gas injection assembly and a second stage gas injection assembly. The first gas injection assembly is configured to inject steam at a high flow rate and a high pressure into the flare tip or the combustion zone. The second gas injection assembly is configured to inject a gas (for example, steam and/or a gas other than steam) at a low flow rate and a high pressure into the flare tip or the combustion zone. A flare tip including the staged steam injection system is also provided.

Abstract: A burner assembly for a radiant burner includes a burner tube structure in the form of an elongated burner conduit having spaced inlet and outlet ends. The conduit is adapted and arranged for directing a fuel lean gaseous mixture comprising a portion of the total fluid fuel to be combusted and oxygen therealong from the inlet end to the outlet end. The assembly also includes a main burner nozzle at the outlet end of the conduit, which nozzle has a central axis, a wall extending around a centrally located chamber therein, and a downstream end spaced from the outlet end of the conduit. The main burner nozzle is arranged and adapted for receiving the mixture from the conduit in the chamber and redirecting the same through a plurality of apertures in the wall and into a combustion zone in a direction transverse to the axis and at a velocity which is greater than the flame speed of the gaseous mixture.

Abstract: A burner arrangement includes a venturi cluster including a plurality of venturis arranged for parallel flow. The multi venturi arrangement utilizing pressurized fuel as the inducing fluid to induce a flow of air enables the provision of an ultra fuel lean premix of fuel and air. A central burner tube which extends outwardly beyond the delivery end of a primary burner tip and mounts a relatively small capacity nozzle at a substantial distance from the delivery end of the burner tip enabling the ultra fuel lean mixture to expand and slow down such that its linear speed does not exceed the flame speed of the mixture prior to by the flame of the spaced nozzle. A deflector may be positioned adjacent the nozzle to assist in stabilizing the flame after the expansion and slowing process has been completed.

Abstract: A burner arrangement includes a venturi cluster including a plurality of venturis arranged for parallel flow. The multi venturi arrangement utilizing pressurized fuel as the inducing fluid to induce a flow of air enables the provision of an ultra fuel lean premix of fuel and air. A central burner tube which extends outwardly beyond the delivery end of a primary burner tip and mounts a relatively small capacity nozzle at a substantial distance from the delivery end of the burner tip enabling the ultra fuel lean mixture to expand and slow down such that its linear speed does not exceed the flame speed of the mixture prior to by the flame of the spaced nozzle. A deflector may be positioned adjacent the nozzle to assist in stabilizing the flame after the expansion and slowing process has been completed.

Abstract: A biogas flare system for burning biogas generated primarily by a landfill includes at least one burner for igniting a mixture of biogas and air. A main supply line supplies a mixture of biogas and air to the burner. A biogas supply line feeds biogas into the main supply line. An air supply line feeds air into the main supply line. A mixer structure mixes the biogas and air prior to the mixture being supplied to the burner.

Abstract: A biogas flare system for burning biogas generated primarily by a landfill includes at least one burner for igniting a mixture of biogas and air. A main supply line supplies a mixture of biogas and air to the burner. A biogas supply line feeds biogas into the main supply line. An air supply line feeds air into the main supply line. A mixer structure mixes the biogas and air prior to the mixture being supplied to the burner.

Abstract: A burner assembly for a radiant burner includes a burner tube structure in the form of an elongated burner conduit having spaced inlet and outlet ends. The conduit is adapted and arranged for directing a fuel lean gaseous mixture comprising a portion of the total fluid fuel to be combusted and oxygen therealong from the inlet end to the outlet end. The assembly also includes a main burner nozzle at the outlet end of the conduit, which nozzle has a central axis, a wall extending around a centrally located chamber therein, and a downstream end spaced from the outlet end of the conduit. The main burner nozzle is arranged and adapted for receiving the mixture from the conduit in the chamber and redirecting the same through a plurality of apertures in the wall and into a combustion zone in a direction transverse to the axis and at a velocity which is greater than the flame speed of the gaseous mixture.

Abstract: A biogas flare system for burning biogas generated primarily by a landfill includes at least one burner for igniting a mixture of biogas and air. A main supply line supplies a mixture of biogas and air to the burner. A biogas supply line feeds biogas into the main supply line. An air supply line feeds air into the main supply line. A mixer structure mixes the biogas and air prior to the mixture being supplied to the burner.

Abstract: A burner arrangement includes a venturi cluster including a plurality of venturis arranged for parallel flow. The multi venturi arrangement utilizing pressurized fuel as the inducing fluid to induce a flow of air enables the provision of an ultra fuel lean premix of fuel and air. A central burner tube which extends outwardly beyond the delivery end of a primary burner tip and mounts a relatively small capacity nozzle at a substantial distance from the delivery end of the burner tip enabling the ultra fuel lean mixture to expand and slow down such that its linear speed does not exceed the flame speed of the mixture prior to by the flame of the spaced nozzle. A deflector may be positioned adjacent the nozzle to assist in stabilizing the flame after the expansion and slowing process has been completed.

Abstract: A biogas flare system for burning biogas generated primarily by a landfill includes at least one burner for igniting a mixture of biogas and air. A main supply line supplies a mixture of biogas and air to the burner. A biogas supply line feeds biogas into the main supply line. An air supply line feeds air into the main supply line. A mixer structure mixes the biogas and air prior to the mixture being supplied to the burner.