Abstract

An porous tip (e.g. atomizer or gas nozzle) for a burner or flare comprising an atomization region (108), a proximal end comprising at least one inlet configured to allow fuel and/or an atomizing medium to enter the atomization region, a distal end (104) comprising at least one outlet (126) configured to allow atomized fuel to exit the atomization region, and a fluid delivery means (128) for optionally delivering a fluid to the distal end to cool and/or clean the distal end.

IPC Classes  ?

• F23D 11/10 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
• F23D 11/16 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour in which an emulsion of water and fuel is sprayed
• F23D 11/38 - NozzlesCleaning devices therefor

Abstract

An atomizer (210) for a burner comprising an atomization region (208), a proximal end (202) comprising at least one inlet configured to allow fuel and/or an atomizing medium to enter the atomization region (208), a distal end (204) comprising at least one outlet (226) configured to allow atomized fuel to exit the atomization region (208), wherein an external surface (228) of the distal end (204) is shaped to permit air flow around the at least one outlet (226).

IPC Classes  ?

• F23D 11/10 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
• F23D 11/12 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour characterised by the shape or arrangement of the outlets from the nozzle
• F23D 11/24 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space

Abstract

The invention provides a nozzle-mixed burner for use in an endothermic process such as hydrogen reforming or ammonia reforming or ethylene cracking or EDC cracking. The burner (20) comprises a fuel duct (24) extending axially through a wall (22) of the furnace. The fuel duct (24) delivers gaseous fuel (G) to an array of nozzles (26) extending laterally to spray the fuel (G) outwardly into an annular chamber (40) defined by a cap (36). Combustion air (A) is delivered to the chamber (40) by way of a primary air duct (30). A convergent-divergent section (32) of the duct (30) and an outwardly divergent section (44) of the chamber (40) together form a radially extending venturi. Combustion of the fuel (G), supplemented by the venturi effect, draws the air (A) through the duct (30) by natural inspiration.

IPC Classes  ?

• F23D 14/12 - Radiant burners
• F23D 14/22 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
• F23D 14/24 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion

Abstract

The loading of crude oil into a storage tank (12) at A causes vent gas comprising a. mixture of VOC and inert gas to be vented from the tank (12) at C. The vent gas is compressed and delivered at D to a burner (32) of a boiler (34). The burner also receives, at F, a supply of oil (14) as a support fuel to provide stable combustion, the supply of oil (14) being adjusted automatically according to the Wobbe Index and flow rate of the vent gas. Steam generated in the boiler (34) from the burning of the fuels is used to heat the oil (14), to counter waxiness, or for other purposes.

IPC Classes  ?

• F17C 11/00 - Use of gas-solvents or gas-sorbents in vessels