Abstract: A method for producing hot gas for operating a turbomachine fired with at least one combustion chamber includes premixing a fuel with a plurality of operating gases by introducing fuel into the plurality of operating gases in a mixing chamber disposed upstream of the combustion chamber using a burner arrangement, wherein the fuel includes at least one of a combustible gas and a H2-rich fuel; and introducing the premixed fuel into the combustion chamber.

Abstract: A cyclonic incinerator includes a cylindrical outer burn chamber having a defining wall, a central axis, a first end, a second end, and a forced air opening extending through the wall between the first end and the second end. A forced air manifold is provided which is adapted to direct forced air into the forced air opening of the outer burn chamber to create a cyclonic air flow about the central axis of the outer burn chamber. A cylindrical inner burn chamber is concentrically disposed within the outer burn chamber. The inner burn chamber has a defining wall, a first end and a second end. The first end of the inner burn chamber has an exhaust gas opening. The second end of the inner burn chamber is in communication with the outer burn chamber. A gas inlet is positioned at the first end of the outer burn chamber.

Abstract: A fuel injection system is provided for a gas turbine, comprising a mains airblast fuel injector having an annular shape, and inner and outer mains swirlers for swirling air past the mains airblast fuel injector. The inner and outer mains swirlers are concentric with the mains airblast fuel injector and are located radially inwardly and radially outwardly of the mains airblast fuel injector, respectively. The mains airblast fuel injector and the inner and outer mains swirlers are so arranged as to produce a fuel spray stream which expands from the mains airblast fuel injector and has a double flame front. The double flame front comprises flame fronts on both the radially inner and radially outer surfaces of the fuel spray stream.

Abstract: An oxy-fuel furnace and method of heating material in an oxy-fuel furnace are disclosed. The method includes combusting oxygen and fuel with an oxy-fuel burner arrangement in the oxy-fuel furnace forming combustion gases, and maintaining a vortex including the combustion gases within a central region of an enclosure of the oxy-fuel furnace. The oxy-fuel burner arrangement includes a plurality of high momentum oxy-fuel burners arranged at an angle to generate the vortex, the angle being greater than 15 degrees but less than 75 degrees with respect to a furnace wall boundary of the enclosure, an angular velocity of greater than 0.07 radians per second, or a combination thereof. The furnace includes an oxy-fuel burner arrangement including at least two high momentum oxy-fuel burners having high shape factor nozzle geometries, and an enclosure. The vortex increases convective heating within the enclosure and uniformity of heating within the enclosure.

Abstract: A burner includes a first fuel feed and a first oxidant feed surrounding the first fuel feed in the shape of a ring. The burner includes a second fuel feed arranged about the first oxidant feed in the shape of a ring, and a second oxidant feed arranged about the second fuel feed in the shape of a ring. In addition, a plurality of oxygen lances are provided, which have a smaller radial distance from the burner centre than the second fuel feed.

Abstract: A combustor includes a combustion chamber and at least one group of at least two burner jets disposed circumferentially about the combustor. The at least two burner jets within a group are generally coplanar and are spaced about equal distances circumferentially. Each of the at least two burner jets within a group is oriented to direct a flow of a fluid at a corresponding tangential point of an associated imaginary circle within the combustion chamber to induce a generally cyclonic flow pattern within the combustion chamber.

Abstract: A whirlwind-type oxidation combustion apparatus for processing semiconductor fabrication exhaust gas is disclosed. An inlet head is set on the top of an exhaust gas processing tank. An exhaust gas passage is set inside the inlet head and connected to an external exhaust gas supply terminal and the exhaust gas processing tank, for guiding the exhaust gas into the exhaust gas processing tank. An ignition chamber is formed between two partitions outside the exhaust gas passage. The two partitions have multiple inclined holes interconnecting an external combustion gas supply terminal, the ignition chamber, and the exhaust gas processing tank. The inclined holes guide a combustion gas to swirl into the exhaust gas processing tank through the ignition chamber. An igniter in the ignition chamber ignites the combustion gas to form a vortex flame which burns the exhaust gas. The exhaust gas is further caused to swirl onto a water screen.

Abstract: The disclosure relates to a burner for a combustion chamber of a gas turbine, with an injection device for the introduction of at least one gaseous and/or liquid fuel into the burner, wherein the injection device has at least one body which is arranged in the burner with at least one nozzle for introducing the at least one fuel into the burner, the at least one body being configured as a streamlined body which has a streamlined cross-sectional profile and which extends with a longitudinal direction perpendicularly or at an inclination to a main flow direction prevailing in the burner. The at least one nozzle has its outlet orifice at or in a trailing edge of the streamlined body, and with reference to a central plane of the streamlined body, the trailing edge is provided with at least two lobes extending in opposite transverse directions.

Abstract: Method for combusting a solid phase fuel, where the fuel is caused, by the help of a non-pneumatic feeding element (11), to be fed to an inlet opening (11a) in a burner device (10) having a first inlet (13a) for the oxidant through which an oxidant is caused to flow via a first supply conduit (13). The first inlet (13a) for oxidant is caused to be arranged in the form of an opening surrounding the inlet opening (11a), in that the oxidant is caused to flow out through the opening (13a) with a velocity of at least 100 m/s, through a burner pipe (16) and out through a burner orifice (17) to a combustion space (18), so that the oxidant by ejector action causes the fuel to be conveyed through the burner pipe (16) and out through the burner orifice (17).

Abstract: An apparatus and method for inducing waves within a container arranged to permit a through-flow of fluid flowing generally from an inlet of the container to an exit of the container, wherein the container has wave inducing means located at the exit of the container, the wave inducing means being operable to vary the area of the exit thereby inducing waves within the container. The apparatus may form part of a combustor test rig.

Abstract: A coaxial injection device for injecting and dispersing reagents into a reactor, including an exterior duct for high-velocity gas injection; an outer-middle injector with at least one nozzle for liquid injection; an inner-middle duct for low-velocity gas injection; and an interior injector with nozzle for liquid injection; wherein, the exterior duct is formed by the internal wall of an insert and the external wall of the outer-middle injector; and is located externally to and circumferentially surrounds all other injectors and ducts; the outer-middle injector is formed by two concentric cylinders with end plate and injector nozzles; the inner-middle duct is formed by interior wall of the outer-middle injector and the exterior wall of the interior injector; the interior injector is formed by a cylinder with an endplate, the endplate having a nozzle; thereby ensuring the mixing and dispersion of the liquids and gases into the reactor to increase reaction homogeneity, reaction efficiency, reactor efficiency and

Abstract: A gas burner apparatus for discharging a mixture of fuel gas, air and flue gas into a furnace space of a furnace wherein the mixture is burned and flue gas having a low content of nitrous oxides and carbon monoxide is formed is provided. The burner tile includes at least one gas circulation port extending though the wall of the tile. The interior surface of the wall of the tile includes a Coanda surface. Fuel gas and/or flue gas conducted through the gas circulation port follows the path of the Coanda surface which allows more flue gas to be introduced into the stream. The exterior surface of the wall of the tile also includes a Coanda surface for facilitating the creation of a staged combustion zone. Also provided are improved burner tiles, improved gas tips and methods of burning a mixture of air, fuel gas and flue gas in a furnace space.

Abstract: An apparatus and process is provided for combining fuel and combustion air to produce a mixture. The mixture is burned in a combustion chamber to produce a flame.

Abstract: A combustor nozzle includes a fuel supply in fluid communication with a fuel passage that terminates at a fuel outlet. An oxidant supply is in fluid communication with an oxidant passage radially displaced from the fuel passage and that terminates at an oxidant outlet radially displaced from the fuel outlet. A diluent passage radially displaced from the fuel passage and the oxidant passage terminates at a diluent outlet disposed between the fuel outlet and the oxidant outlet. A method for supplying fuel to a combustor includes flowing the fuel through a fuel outlet and flowing an oxidant through an oxidant outlet radially displaced from the fuel outlet. The method further includes flowing a diluent through a diluent outlet radially disposed between the fuel outlet and the oxidant outlet.

Abstract: A gas burner apparatus for discharging a mixture of fuel gas, air and flue gas into a furnace space of a furnace is provided. The burner tile includes at least one gas circulation port extending though the wall of the tile. The interior surface of the wall of the tile includes a Coanda surface. Fuel gas and/or flue gas conducted through the gas circulation port follows the path of the Coanda surface which allows more flue gas to be introduced into the stream. The exterior surface of the wall of the tile also includes a Coanda surface for facilitating the creation of a staged combustion zone. Also provided are improved burner tiles, improved gas tips and methods of burning a mixture of air, fuel gas and flue gas in a furnace space.

Abstract: In one embodiment, a method for generating heat energy includes injecting a stream having a concentration of at least 50% oxygen (O2 stream) into a primary gas stream through a mixer, the mixer discharging the O2 stream as two or more spaced jets traversing the primary stream, thereby enriching the primary gas stream. The method further includes mixing fuel with the enriched primary gas stream, thereby forming a fuel stream; and combusting the fuel stream, thereby forming a flue gas stream.

Abstract: A burner includes a first fuel feed and a first oxidant feed surrounding the first fuel feed in the shape of a ring. The burner includes a second fuel feed arranged about the first oxidant feed in the shape of a ring, and a second oxidant feed arranged about the second fuel feed in the shape of a ring. In addition, a plurality of oxygen lances are provided, which have a smaller radial distance from the burner centre than the second fuel feed.

Abstract: A burner for use with an induced draft furnace and which satisfies reduced nitrous oxide (NOx) emission standards is disclosed. The burner may employ a mechanical swirler that introduces a rotational vector to the emitted air and fuel mixed by the burner. By introducing the rotational vector, the resulting flame is more stable and sustainable even with the relatively low air flow afforded by an induced system. Such flame stability can be enhanced by positioning the burner directly within an inlet to a heat exchanger and manufacturing the inlet with reception surfaces that form a frusto-conically shaped flame expansion zone. In doing so, a secondary source of air is avoided and NOx emissions are reduced.

Abstract: Disclosed are heaters having at least one adjustable fired burner and an adjustable fired burner for use with various types of heaters. The heaters may be part of an industrial processes such as petroleum refining. The adjustable burners are configured to be adjusted and positioned in any direction and then be locked into place. The adjustable burners may be adjusted automatically or manually. The ability to quickly adjust the position of an adjustable burner results in substantially less or virtually no damage to elements in the heater and provides for a more even distribution of heat within the heater.

Abstract: A method of combusting non-gaseous fuel to heat a load in a process chamber includes the steps of injecting reactant streams into a combustion chamber. The combustion chamber does not contain a load to be heated, but communicates with the process chamber through a burner port. A first reactant stream includes the non-gaseous fuel, and is injected into the combustion chamber to cause the non-gaseous fuel to volatilize in the combustion chamber. A second reactant stream, which includes a premix of gaseous fuel and primary oxidant, also is injected into the combustion chamber. The first and second reactant streams then combust together to yield products of combustion that flow through the burner port from the combustion chamber to the process chamber. Importantly, the second reactant stream is injected into the combustion chamber adjacent to the first reactant stream.

Abstract: The invention relates to a method for starting a burner for combusting synthesis gases, wherein said burner comprises first and second fuel passages, the first fuel passage encompasses the second fuel passage in a substantially concentric manner and the gas transferred to the burner is mixed with combusting air and is combusted. According to said invention, in order to start the burner, the second fuel passage is first loaded with a synthesis gas to a predefined burner power at a first starting phase and the first fuel passage is loaded with the synthesis gas at a second starting phase.

Abstract: A combustor, in which a flame holding region is formed at a location distant from a pilot burner to avoid burnout of the pilot burner and in which flame holding capability is increased to use a lean pre-mix gas for reducing NOx emission, is provided. The combustor includes a combustion liner having a cylindrical side wall that defines a combustion chamber; and a main burner positioned at a top portion of the combustion liner for injecting an annular pre-mix gas into the combustion chamber to form a reverse flow region at a downstream portion thereof, which region is oriented towards the top portion of the combustion chamber along a longitudinal axis. In this combustor, a pilot burner is arranged at the top portion for injecting a mixture of fuel and air only in a direction confronting the reverse flow region.

Abstract: A combustor includes a chamber mixing and burning fuel and air and an air hole plate disposed on a wall surface of the chamber. The air hole plate includes a plurality of rows disposed concentrically of a plurality of air holes jetting coaxial jets of fuel and air into the chamber. A first fuel nozzle and a second fuel nozzle are disposed near a fuel hole for jetting fuel into an air hole row on an inner peripheral side. The first fuel nozzle is structured to suppress turbulence of surrounding air flow and the second fuel nozzle is structured to promote turbulence of a surrounding air flow. In accordance with the aspect of the present invention, good flame stability can be maintained while further reducing NOx in a combustor using coaxial jets.

Abstract: A nozzle includes a fuel plenum and an air plenum downstream of the fuel plenum. Fuel channels radially outward of an axial centerline of the nozzle include an inlet and an outlet downstream of the inlet. A fuel port in the fuel channels provides fluid communication between the fuel plenum and the fuel channels. An air port in the fuel channels downstream of the fuel port provides fluid communication between the air plenum and the fuel channels. A method for mixing fuel and air in a nozzle prior to combustion includes flowing fuel to a fuel plenum and flowing air to an air plenum downstream of the fuel plenum. The method further includes injecting fuel from the fuel plenum through fuel ports in fuel channels and injecting air from the air plenum through air ports in the fuel channels.

Abstract: According to one aspect of the disclosure, an apparatus for injecting fuel is provided, where the apparatus includes a cone structure that includes a passage to form a swirl of an air-fuel mixture in a combustion chamber. The apparatus also includes at least one adjustable vane positioned in the passage configured to control the swirl of the air-fuel mixture and control a flame stability.

Abstract: A burner assembly for lean, low NOx combustion may include a gaseous fuel manifold, counter-swirl vanes, and a converging nozzle with bluff body flame anchors. A cooling air tube optionally extends from the air inlet to the nozzle.

Abstract: A method for supplying fuel to a combustor includes flowing a working fluid through a nozzle, injecting the fuel into the nozzle, and mixing the fuel with the working fluid to create a fuel and working fluid mixture. The method further includes swirling the fuel and working fluid mixture, sensing flame holding in the nozzle, and reducing the swirl in the fuel and working fluid mixture. A method for supplying a working fluid to a combustor includes flowing the working fluid through a nozzle and swirling the working fluid flowing through the nozzle. The method further includes sensing flame holding in the nozzle and reducing the swirl of the working fluid flowing through the nozzle.

Abstract: In a flame arrester insert comprising two metal strips (1, 2) wound together, of which a first metal strip (1) is a smooth strip and the second metal strip (2) is a grooved strip having defined grooving, so that they rest on each other at defined contact points (3) and, between the contact points (3), form defined gaps (4) for the passage of a fluid, the stability can be increased and corrosion prevention can be implemented even with inexpensive materials by the metal strips (1, 2) resting directly on each other at the contact points (3) and, outside the contact points (3), having a surface coating (5) which, close to the contact points, is a uniform joint coating of the surfaces of the metal strips (1, 2) that point toward each other.

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

Abstract: A method and device for combustion of liquid fuels is presented which uses a plurality of rotating hydrogen flames to blast atomize and ignite a mechanically dispersed stream of the liquid fuel. This combustion method and device are particularly suited for heavy oil fuels, such as vegetable oils, which are not well burned using conventional burner technologies. This combustion method involves establishing a zone of combusting hydrogen and projecting a mechanically atomized dispersion of the liquid fuel into and through this zone of combusting hydrogen. The combusting hydrogen partially vaporizes and ignites the liquid fuel while the intense turbulence of the hydrogen combustion zone further disperses any remaining liquid fuel droplets. Once ignited and dispersed, the fuel oil continues to burn as it moves away from the hydrogen combustion zone.

Abstract: A device for combusting fuel which contains or consists of hydrogen, is described, with a burner provided with a swirl generator and also a feeder for feeding fuel and a feeder for feeding combustion air into the swirl generator. A first feeder, for feeding liquid fuel along a burner axis, and a second feeder for feeding liquid fuel or gaseous fuel along air inlet slots which are tangentially delimited by the swirl generator, with a transition section connected downstream to the swirl generator, and with a mixer tube connected downstream to the transition section and with a changeable flow cross-sectional transition leads into a combustion chamber are provided. Along the transition section, a third feeder for feeding fuel which contains or consists of hydrogen, and also a fourth feeder for the selective feed of fuel which contains or consists of hydrogen, or of the gaseous fuel are also provided.

Abstract: A premix burner has a mixing section (3) for a heat generator, sectional conical shells (5) which complement one another to form a swirl body, enclose a conically widening swirl space (6), and mutually define tangential air-inlet slots (7), along which feeds (8) for gaseous fuel are provided in a distributed manner, having at least one fuel feed (11) for liquid fuel, this fuel feed (11) being arranged along a burner axis (A) passing centrally through the swirl space (6), and having a mixing tube (4) adjoining the swirl body downstream via a transition piece (2). At least one additional fuel feed (13) for liquid fuel is provided in the region of the swirl body, the transition piece (2), and/or the mixing tube (4).

Abstract: A premix burner is provided, with a swirl generator and a downstream mixer tube for combusting gaseous and liquid fuel which during entry of combustion air is introduced into the burner interior space of the swirl generator and/or is introduced into the burner interior of the swirl generator on a burner axis, and also with a fuel lance which is arranged on the burner axis. The premix burner, in the transition section from the swirl generator to the mixer tube, includes at least one additional feed for introducing gaseous and/or liquid premix fuel from the wall region into the burner interior space of the mixer tube.

Abstract: A burner is disclosed which includes a vortex generator for a combustion air stream, means for the admission of fuel into the combustion air stream and air inlet ducts, the combustion air stream enters a vortex chamber of the vortex generator via air inlet ducts. The fuel is injected into the combustion air asymmetrically via the injection means.

Abstract: A combustion burner resulting in low oxides of nitrogen includes a primary combustion zone, for use as an ignition source. The primary combustion zone locating within a combustion chamber, and being separated from the base of the combustion chamber by a wall. A burner provides a secondary oxidant stream that is delivered to the combustion chamber at the base of an exterior wall, to entrain and mix with flue gases present in the combustion chamber. Then secondary fuel is injected into the resulting secondary oxidant-flue gas mixture. Combustion of the secondary fuel with the oxidant flue gas mixture results in lower concentration of oxides of nitrogen emitted to the atmosphere.

Abstract: A premixing burner has a swirl generator with at least two burner shells (1) which jointly enclose an axia conically widening swirl space and delimit tangential air inlet slits (3) through which combustion supply air passes into the swirl space in which an axially propagating swirl flow is formed, and with fuel injection devices at least partially along the tangentially running air inlet slits (3). The fuel injection devices include a fuel line (6) separate from the burner shell (1) and which is firmly attached to the burner shell (1) so as to be longitudinally movable with respect to the burner shell (1) and releasable perpendicularly to the surface of the burner shell (1). In the burner shell (1), orifices (4) are provided, into which issue fuel injectors (7) which are provided along the fuel line (6) and which project beyond the circumferential edge of the fuel line (6).

Abstract: A method of preparing an oxidant stream comprising: burning a combustion mixture comprising (a) one or more fuel composition and (b) oxidant comprising a first oxygen content of about 10 mole % or more and a first carbon dioxide (CO2) gas content of about 68 mole % or more on a dry basis, the burning producing a flue gas comprising CO2 gas, water vapor, and unreacted oxygen; separating from the flue gas a recycle stream; mixing at least a portion of the recycle stream having a first pressure with a sufficient amount of an oxygen stream having a second pressure which is sufficiently higher than the first pressure to entrain at least a portion of the recycle stream in the oxidant stream and to produce the oxidant stream having a second oxygen content of 10 mole % or more and a second CO2 gas content of about 68 mole % or more on a dry basis.

Abstract: Method of combustion with a gas burner having a burner head at one end of an inner gas pipe surrounded by an outer protective pipe, wherein gases from the burner head flow inside the inner pipe and inside the outer pipe and thereafter flow into an exhaust channel. The inner pipe terminates short of the burner head; a sleeve downstream of the burner head, is inserted into and/or placed concentrically with the inner pipe so that the sleeve orifice is located within the inner pipe; a gap is provided between the opening of the inner pipe and the sleeve. The gap is sized such that the mixture of fuel and combustion air from the burner head and recycled exhaust gases passing through the gap will be mixed in quantities at which the temperature of combustion will be lower than the temperature in which NOx is formed.

Abstract: The present invention relates to a method for mixing at least two separate fluid flows (2, 3), in particular for a burner of a power plant. To improve the mixing, a plurality of swirl flows (7, 8), which are annular and concentric with respect to a longitudinal center line (6), are generated from the fluid flows (2, 3), in such a manner that radially adjacent swirl flows (7, 8) have opposite directions of rotation.

Abstract: A method and system for improving high excess air combustion system efficiency, including induration furnaces, using a re-routing of flue gas within the system by gas recirculation. Flue gas is drawn from hot system zones including zones near the stack, for re-introduction into the process whereby the heat recovery partially replaces fuel input. At least one pre-combustion drying zone, at least one combustion zone, and at least a first cooling zone exist in these furnaces. At least one exhaust gas outlet is provided to each pre-combustion drying and combustion zone. At least part of the gaseous flow from each system zone exhaust outlet is selectively delivered to an overall system exhaust, the remaining flow being selectively delivered via recirculation to cooling zones. Recirculation flow is adjusted to meet required system temperatures and pressures. The method and system provide efficiency improvements, reducing fuel requirements and greenhouse gas emissions.

Abstract: A burner fires into a radiant tube to provide a downstream flow of combustion products within the radiant tube. Staged fuel is injected upstream into the radiant tube. A recirculation conduit inside the radiant tube receives the staged fuel along with combustion products that are inspirated into the recirculation conduit by the staged fuel. The recirculation conduit has an outlet for discharging a mixture of the inspirated combustion products and staged fuel into the downstream flow of combustion products.

Abstract: This bio-fuel furnace includes a combustion unit and separate fuel feed unit mounted atop the combustion unit. The combustion unit includes a cylindrical burn pot, a preheat module, an expansion bowl and a primary heat exchanger supported by an inner frame and enclosed by an outer casing. The preheat module is a rectangular box having an internal spiral baffle. The burn pot is seated within a central opening in the preheat module. The expansion bowl is seated atop the preheat module and the primary heat exchanger is mounted above the expansion bowl. An inlet fan blows inlet air through the preheat module and into the burn pot and an outlet fan draws exhaust air around the primary heat exchanger from the combustion unit. The fuel feed unit has an internal storage bin and a rotating scoop arm deposits the bio fuel into the combustion unit.

Abstract: A process and related reactor (1) for oxidation of a hydrocarbon feedstock are disclosed, the reactor (1) comprising a vessel (3) and a neck (5) with an axial burner (6) and a tangential gas inlet (2), wherein the neck (5) has a swirling chamber (10) located below said burner (6) and connected to said gas inlet (2), to produce a gas vortex (V) which optimizes the mixing between the gas stream (G) and the oxidizer in said neck (5). Preferably the swirling chamber (10) has an internal surface (12) with a log-spiral profile.

Abstract: A catalyzer for burning part of a gaseous fuel/oxidant mixture, in particular for a burner of a power plant installation, has catalytically active channels and catalytically inactive channels and at least two sectors are arranged consecutively in the main flow direction. The sectors include a first sector defining an inlet sector and at least one following sector that includes one or more of a mixing sector arranged downstream from the inlet sector and an outlet sector. Further, the catalyzer has one or more of a smaller flow resistance in the inlet sector than any following sector, a higher catalytic activity in the inlet sector than any following sector, a plurality of holes in the mixing sector oriented transversely to the main flow direction and through which adjoining channels communicate, and a swirl generator in the outlet sector that provides a swirl to a gas mixture flowing through the outlet sector.

Abstract: A permanently fireproof flame guard includes a flow area (2) which terminates a conduit and within which an inserted flame shield is disposed. The flame shield is provided with a plurality of passage gaps that ensure permanent fire safety. Cooling of the permanently fireproof flame guard can be improved by forming at least one concentric, annular section (5) within the flow area (2) in a massive manner without passage gaps while forming annular sections (4) comprising passage gaps around the concentric, annular section (5).

Abstract: Apparatus and methods for improved combustion of oxygen and a mixture of a non-gaseous fuel, which includes providing: 1) a source of a mixture of non-gaseous fuel and conveying gas; 2) a source of oxygen; 3) a burner operatively associated with a combustion chamber; 4) a fuel duct in fluid communication with the source of mixed non-gaseous fuel and conveying gas; 5) a tubular oxygen lance fluidly communicating with the source of oxygen; and 6) at least two injection elements in fluid communication with the source of oxygen. The fuel duct includes a portion that extends along an axis towards the burner. The lance is disposed along the axis and has a diameter D. The injection elements are configured to inject oxygen into, and mix therewith, a flow of the mixture upstream of, or at, the burner. At least one of the injection elements receives oxygen from the lance. The injection elements are spaced apart by a distance X, which is greater than the length of diameter D.

Abstract: A method comprises providing a combustion apparatus having an outer vessel and an inner conduit. The outer vessel has a first wall that defines an internal volume. The inner conduit is at least partially positioned within the internal volume and provides a fluid passageway that is in communication therewith. The method further comprises introducing oxygen into the internal volume in a manner such that the oxygen swirls within the internal volume and around the inner conduit. Furthermore, the method comprises introducing fuel into the internal volume, and combusting the fuel and oxygen at least partially therewithin. The combustion of the fuel and oxygen produces reaction products and the method further comprises discharging at least some of the reaction products from the internal volume via the fluid passageway of the inner conduit.

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 method for producing hot gas for operating a turbomachine fired with at least one combustion chamber includes premixing a fuel with a plurality of operating gases by introducing fuel into the plurality of operating gases in a mixing chamber disposed upstream of the combustion chamber using a burner arrangement, wherein the fuel includes at least one of a combustible gas and a H2-rich fuel; and introducing the premixed fuel into the combustion chamber.

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.