In an embodiment, a method of controlling flaring of a combustion gas including a flare gas, a supplemental fuel gas, and an assist gas is provided. Models estimating, based on flow rates and in-situ speed of sound measurements in the gases, net heating value of the combustion gas within a flare combustion zone, combustion efficiency of the combustion gas, and smoke yield of the combustion gas are maintained. The method also includes receiving measurements of the gas flow rates and determining set points for flow rates of the fuel gas and/or the assist gas based upon the models that achieve a target combustion efficiency. When a difference between a determined set point and its corresponding flow rate for the fuel gas and/or the assist gas is greater than a corresponding predetermined tolerance amount, that flow rate can be adjusted to reduce the determined difference below the predetermined tolerance amount.

Provided is a flare tip. The flare tip, according to one embodiment, includes a flare tip enclosure. The flare tip, according to this embodiment, additionally includes two or more flare tip arms extending from the flare tip enclosure, wherein the two are more flare tip arms are largely equidistance from one another, and two or more flare tip orifices located in each of the two or more flare tip arms.

Provided is a flare tip. The flare tip, according to one embodiment, includes a flare tip enclosure. The flare tip, according to this embodiment, additionally includes two or more flare tip arms extending from the flare tip enclosure, wherein the two are more flare tip arms are largely equidistance from one another, and two or more flare tip orifices located in each of the two or more flare tip arms.

This disclosure presents a clean burning flare stack, or gas flare. The gas flare is air assisted to ensure clean burning. The disclosed gas flare provides smokeless clean burning of released gases. For example, the gas flare burns the released gases in a lean burning condition such that sufficient air is supplied to the surges of gases. In addition, the gas flare, by using a low pressure blower mixing chamber, is capable of handling low pressure gases and high pressure gases. As such, different flow rates may be provided to the gas flare when different amounts of low pressure and high pressure flammable gases are mixed with sufficient blower air to provide a clean burning condition. The disclosed smokeless gas flare is thus environmentally friendly and aesthetically appealing.

A system for flare combustion control includes a sound speed measurement device for measuring sound speed in a flare vent gas, and a flare combustion controller including a memory and a processor. The processor is configured to receive the measured sound speed and determine, based on the measured sound speed, a molecular weight of the flare vent gas. The processor is further configured to determine, based on the determined molecular weight, a net heating value of the flare vent gas, and adjust the net heating value of the flare vent gas by regulating an amount of a supplemental fuel gas in the flare vent gas.

A method for optimizing purge gas of a flare system includes measuring a flow of flare fluids within a flare system to obtain a measured flow value. The flow of the flare fluids is compared to a target flow to obtain a difference between the flow of the flare fluids and the target flow. A control valve is operated to amend a flow of purge gas and the steps of measuring a flow of flare fluids and comparing the flow of the flare fluids to the target flow are repeated until the flow of the purge gas is within a target range. A value of the flow of purge gas is measured and transmitted wirelessly to a control system.

A method for optimizing purge gas of a flare system includes measuring a flow of flare fluids within a flare system to obtain a measured flow value. The flow of the flare fluids is compared to a target flow to obtain a difference between the flow of the flare fluids and the target flow. A control valve is operated to amend a flow of purge gas and the steps of measuring a flow of flare fluids and comparing the flow of the flare fluids to the target flow are repeated until the flow of the purge gas is within a target range. A value of the flow of purge gas is measured and transmitted wirelessly to a control system.

A system and method for burning. The system includes a burner head which has a plurality of burners. The burner head also has a primary manifold coupled to a plurality of burner lines which are coupled to burners. The burners also have a secondary manifold coupled to a burner line. Each secondary manifold is coupled to a plurality of spokes which extend outwardly form the secondary manifold. The spokes have at least one nozzle.

A system includes a gas plant having an inlet slug catcher, downstream processing equipment fluidly connected to the inlet slug catcher, and a downstream flare system fluidly connected to the inlet slug catcher. The system also includes an upstream plant connected to the inlet slug catcher via a transmission pipeline. The upstream plant includes an upstream flare system fluidly connected to the transmission pipeline, wherein the inlet slug catcher has a design pressure equal to or greater than the transmission pipeline design pressure.

A system includes a gas plant having an inlet slug catcher, downstream processing equipment fluidly connected to the inlet slug catcher, and a downstream flare system fluidly connected to the inlet slug catcher. The system also includes an upstream plant connected to the inlet slug catcher via a transmission pipeline. The upstream plant includes an upstream flare system fluidly connected to the transmission pipeline, wherein the inlet slug catcher has a design pressure equal to or greater than the transmission pipeline design pressure.