Abstract: A method for regulating a temperature of a combustion medium in a mixing zone of a burner and a method for regulating a burner, in particular an oil burner, a burner performance being modulated. A heating system including a burner, which includes a regulating device, and a regulating device for a burner, in particular an oil burner. The method/system is intended to provide as constant a temperature as possible in the mixing zone during the different operating modes and with changed burner performance. The combustion air flows through a first supply tract in a first operating mode and in adjustable proportions through the first and/or a second supply tract in a second operating mode, and the combustion air is supplied with heat via a heating element, which may be switched on and off, in the first supply tract, and with heat from a combustion zone in the second supply tract.

Abstract: Disclosed is a combustor including a baffle plate having at least one through baffle hole and at least one fuel nozzle extending through the at least one baffle hole. A plurality of injection holes extend through the at least one fuel nozzle and are configured to meter a flow of diluent into the combustor. Further disclosed is a method for providing diluent to a combustor including providing a plurality of openings located at at least one fuel nozzle extending through a through hole in a baffle plate. The diluent is flowed through the plurality of openings toward at least one airflow opening in the at least one fuel nozzle.

Abstract: A burner for use in furnaces such as in steam cracking.

Abstract: A burner (23) for operating a heat generator includes a swirler (2) for a combustion air flow (9), and also devices (7, 12) for injecting at least one fuel into the combustion air flow (9), wherein a mixing path (3) is arranged downstream of the swirler (2), and wherein at least one nozzle (20) for feeding liquid pilot fuel is arranged in the region radially outside the discharge opening of the mixing path (3) of the burner. With such a burner, an operating mode which is as pollutant-free and overheating-free as possible can be enabled even at low load and under transient conditions if the at least one nozzle (20) is arranged in a burner front plate (32), wherein at least one discharge opening (15), through which the pilot fuel discharges into the combustion chamber (16), is provided in a front face (34) of the burner front plate (32), which is arranged essentially parallel to a combustion chamber rear wall (28).

Abstract: A burner for use in furnaces such as those employed in steam cracking. The burner includes a primary air chamber for supplying a first portion of air, a burner tube having an upstream end and a downstream end, a burner tip having an outer diameter, the burner tip mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip producing a gaseous fuel flame, at least one air port in fluid communication with a secondary air chamber for supplying a second portion of air, the at least one air port radially positioned beyond the outer diameter of the burner tip and at least one non-gaseous fuel gun for supplying atomized non-gaseous fuel, the at least one non-gaseous fuel gun having at least one fuel discharge orifice, the at least one non-gaseous fuel gun positioned within the at least one air port.

Abstract: A dual-fuel burner for use in furnaces such as in steam cracking. The burner includes a primary air chamber, a burner tube having an upstream end and a downstream end, a fuel orifice located adjacent the upstream end of the burner tube for introducing gaseous fuel into the burner tube, a burner tip having an outer diameter mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the gaseous fuel takes place downstream of the burner tip, and at least one non-gaseous fuel gun, the at least one non-gaseous fuel gun having at least one fuel discharge orifice for combusting the non-gaseous fuel downstream of the discharge orifice, wherein the at least one non-gaseous fuel gun is radially positioned beyond the outer diameter of the burner tip so that a flame emanating from the combustion of the non-gaseous fuel is substantially aligned in parallel with a flame emanating from the combustion of the gaseous fuel.

Abstract: In a fuel lance by means of which fuels can be injected, via at least two separate passages, into a combustion chamber alternately or simultaneously at an injection location arranged substantially at the lance tip, reliable operation is achieved, without the risk of flashbacks and also without coking, by virtue of the fact that the fuel lance, in addition to fuel, also passes purge air to the injection location, and that the purge air, at the injection location, is routed between the two fuel systems, in such a manner that these systems are shielded from one another by the purge air.

Abstract: A waste oil burning system having a burner and a heat exchanger for preheating atomizing air before the atomizing air is supplied to the nozzle. The burner includes a fuel conduit for supplying waste oil to the burner and an air supply line for supplying atomizing air to the burner. The burner has a nozzle which atomizes the waste oil by mixing the waste oil with the air from the air supply line. The nozzle sprays the atomized waste oil into a combustion zone where the atomized waste oil is combusted. The heat exchanger is positioned in the combustion zone, so that energy produced from the combustion of the waste oil preheats the air supplied through the air supply line before the air is mixed with the waste oil.

Abstract: This invention relates to a method for providing controlled heat to a process utilizing a flameless distributed combustion.

Abstract: The invention relates to a method for generating ultrapure steam by oxidation of hydrogen in a closed torch with separate feed lines for hydrogen and oxygen and a discharge line for discharging the steam which is formed to a process chamber. The invention also relates to an arrangement for carrying out the method. The invention is intended to provide a method which is simple to implement and an arrangement for generating ultrapure steam which results in a significantly extended injector service life. For this purpose, oxygen and water are fed to the torch in a slightly superstoichiometric ratio, and pure additional oxygen is admixed with the steam formed during the combustion, when it enters the process chamber, in order to generate a considerable excess of oxygen in the steam. The associated device comprises a torch with feed lines for feeding hydrogen and oxygen to the closed torch and a discharge line leading to a process chamber. Each feed line being assigned a mass flow controller.

Abstract: This invention relates to a method for providing controlled heat to a process utilizing a flameless distributed combustion.

Abstract: A method and apparatus for reducing emissions in combustion systems, particularly gas turbines. A mixture of diluent and fuel is created, wherein the diluent and the fuel are at a predetermined diluent-to-fuel ratio. The mixture is homogenized to create a homogenized mixture having a uniform concentration distribution of the diluent and the fuel at the predetermined diluent-fuel ratio. Thereafter, the homogenized mixture is introduced into a flame zone and the homogenized mixture is combusted.

Abstract: In a shaft furnace for burning limestone or similar raw materials, gaseous, liquid or solid fuels are supplied through fuel supply pipes to the burning zone of a furnace shaft. To permit the simultaneous supply of at least two different fuels, the fuel supply pipes are arranged as multiple fuel lances. The fuel lances extend inwardly from the shaft furnace wall through the preheating zone into the first part of the burning zone. The fuel lance is a double tube member made up of an inner tube laterally enclosed by an outer tube forming an inner fuel supply passageway and an outer annular fuel supply passageway. Two separate fuels can be introduced into the burning zone, one flowing through the inner passageway and the other through the outer annular passageway. The two different fuels can be supplied in varying proportions without any changeover operations.

Abstract: An apparatus for generation of steam in a borehole for penetration into an earth formation wherein a spiral, tubular heat exchanger is used in the combustion chamber to isolate the combustion process from the water being superheated for conversion into steam. The isolation allows combustion of a relatively low pressure oxidant and fuel mixture for generating high enthalpy steam. The fuel is preheated by feedback of combustion gases from the top of the combustion chamber through a fuel preheater chamber. The hot exhaust gases of combustion at the bottom of the combustion chamber, after flowing over the heat exchanger enter an exhaust passage and pipe. The exhaust pipe is mounted inside the water supply line heating the water flowing into the heat exchanger. After being superheated in the heat exchanger, the water is ejected through an expansion nozzle and converts into steam prior to penetration into the earth formation.

Abstract: Apparatus and method for generation of steam in a borehole for penetration into an earth formation wherein a downhole oxidant compressor is used to compress relatively low pressure (atmospheric) oxidant, such as air, to a relatively high pressure prior to mixing with fuel for combustion. The multi-stage compressor receives motive power through a shaft driven by a gas turbine powered by the hot expanding combustion gases. The main flow of compressed oxidant passes through a velocity increasing nozzle formed by a reduced central section of the compressor housing. An oxidant bypass feedpipe leading to peripheral oxidant injection nozzles of the combustion chamber are also provided. The downhole compressor allows effective steam generation in deep wells without need for high pressure surface compressors. Feedback preheater means are provided for preheating fuel in a preheat chamber.

Abstract: Disclosed herein is an oil burner system for burning residual type fuel oils in a high temperature combustion zone or chamber, which includes a method and apparatus for operating the system to maintain the fuel oil at a low viscosity while preventing thermal failure by destruction of the burner which protrudes into the combustion zone or chamber. The fuel oil is preheated and introduced into an oil tube extending through a high temperature furnace wall into the combustion zone or chamber, and also a heated fluid is introduced into the oil tube for passage therethrough with the fuel oil, while the outer periphery of the oil tube is cooled where it passes through the furnace wall and into the high temperature combustion zone or chamber, as well as fabricating the oil tube from a material having a low coefficient of thermal conductivity.

Abstract: A process and apparatus are described for producing hydrogen-rich product gases by mixing a spray of liquid hydrocarbon with a stream of air in a startup procedure and the mixture is ignited for partial oxidation, then the stream of air is heated by the resulting combustion to reach a temperature such that a signal is produced. The signal triggers a two way valve which directs liquid hydrocarbon from a spraying mechanism to a vaporizing mechanism with which a vaporized hydrocarbon is formed. The vaporized hydrocarbon is subsequently mixed with the heated air in the combustion chamber where partial oxidation takes place and hydrogen-rich product gases are produced.