Abstract: A combination burner, consisting of a main swirl burner in which gases of very low calorific value such as industrial waste gases can be burned and a secondary burner for ignition and support of the main burner in which fuels with high calorific value such as natural gas or fuel oil can be burned.The combination burner is designed so that the flame of the secondary burner (upstream of and coaxial with the waste gas burner) will have stability, ignition capability and invulnerability to quenching even in open contact with the swirling waste gas and even when the composition of the waste gas becomes temporarily insufficient to sustain combustion. This is accomplished by aerodynamics utilizing a low swirl in the secondary burner, as compared to the higher swirl of the waste gas burner to sufficiently stabilize the flame of the secondary burner by recirculation but providing an outward flow pattern which forms an effective barrier for the reverse vortex flow in the waste gas swirl chamber.

Abstract: A smokeless burner apparatus for single structure flare systems which is capable of simultaneously burning emergency dumped gases from high and low pressure sources with minimal energy requirements for the low pressure gas combustion.

Abstract: The burner comprises inner and outer tubular concentrically arranged conduits having their outlets positioned approximately in the same plane. The inner conduit is connected to a high pressure gas source; the outer conduit is connected to a low pressure gas source. The end face of the inner conduit forms a valve seat in which a Coanda-type valve body seats. The valve body is axially displaceable away from the valve seat so as to co-operate therewith to form an annular passage. A tubular shroud concentrically surrounds the conduit outlets and valve body in spaced relation therewith. In operation, high pressure gas unseats the valve body and flows at high velocity through the annular passage.

Abstract: A radiant tube burner mixes liquid fuel and/or gaseous fuel with air for combustion in a radiant tube to produce a quiet and stable luminous flame through the entire length of the radiant tube. A flame holding plate is positioned within the radiant tube to define a feed zone and a combustion zone. A liquid fuel nozzle positioned centrally in the plate directs fuel through the plate and into the combustion zone. The plate defines a series of apertures circumscribing the nozzle and another passage outward from the series of openings and concentric therewith. Combustion air is proportioned and admitted to the combustion zone through the series of openings and the passage. Gaseous fuel may be admitted to the combustion zone through the series of openings.

Abstract: A two-flame burner is used in a flame photometric detector for analyzing a sample material. The sample material is introduced via a first conduit structure into a hydrogen-rich first flame, and the combustion products and excess hydrogen from the first flame are passed via a second conduit structure into an oxygen-containing environment. A second flame is maintained at the exit end of the second conduit structure. The first and second conduit structures are composed of material that does not contribute to the coloration of the second flame during operation of the detector. Particular constituents of the sample material are detected by observing the presence of colors in the second flame indicative of the constituents. For example, the presence of sulfur is indicated by a blue coloration, and the presence of phosphorus is indicated by a green coloration.

Abstract: Apparatus for burning a product gas having a low BTU content wherein a single burner is adapted to burn the low energy gas alone with the turndown capability of a multi-burner arrangement. The gas flow is separated into two independent flow streams with one flow stream being exhausted into a primary air stream and the other into a secondary air stream prior to combustion. A common control means responsive to changes in load is provided to modulate the secondary air stream and its associated gas stream whereby at decreasing loads proportionately increased amounts of air and gas are directed through the primary air and gas streams.

Abstract: Liquid effluents are continously discharged into a reaction chamber and vaporized by a flame formed by a jet of gaseous oxidizer which is impelled in rotational motion and into which is introduced a fluid fuel. The ignited oxidizer-fuel mixture is directed into the chamber inlet in a jet which is spatially distinct from the discharge of liquid effluents. The combustible substances contained in the simultaneously atomized liquid effluents are evaporated and burned by the jet of oxidizer-fuel mixture.

Abstract: An injection assembly for introducing a plurality of laterally spaced sprays of a normally liquid hydrocarbon feedstock into the cracking zone of a carbon black furnace.

Abstract: An injection assembly for introducing a plurality of laterally spaced sprays of a normally liquid hydrocarbon feedstock into the cracking zone of a carbon black furnace.

Abstract: An installation for burning waste solvents is characterized by the use of a concentrically constructed nozzle by means of which the waste solvents and a mixture of compressed air and fuel may be burned simultaneously. The compressed air/fuel mixture may either serve to warm up the incinerator prior to the introduction therein of the waste solvents or may be used to support the incineration of waste solvents when the latter have a low heat value.

Abstract: A method and apparatus of combusting an acid gas (H.sub.2 S) stream and a second stream containing an organic sulfur compound which may be contaminated with ammonia, and/or hydrocarbons, either liquid or gaseous, to create SO.sub.2 and H.sub.2 S for ultimate recovery of sulfur.

Abstract: A combination oil and gas burner is shown with the noise attendant upon the delivery of the primary and secondary air for combustion and the noise of the combustion muffled or suppressed by sound absorbing material disposed to reduce sound transmission to a low level.

Abstract: Apparatus to burn liquid fuels in a gaseous fuel burner, which includes preparatory apparatus for the atomization of liquid fuel oil preferably by steam, and the heating of the fuel droplets and steam so as to completely vaporize the liquid fuel. If atomization is by other means, steam is added prior to vaporization heating. The resulting oil vapor-steam mixture then goes to a burner which utilizes the central orifice of a conventional gas burner, plus an annular orifice concentric with the gas orifice, through which steam is supplied. Primary air is induced into the burner tube due to the high velocity jets of steam and of oil vapor-steam. The steam protects the hot vapor from the air until the combination issues from the end of the burner tube. For the use of gaseous fuel, the same burner is utilized except that the steam flow is turned off since the steam is not needed for the induction of the primary air, due to the higher velocity of the jets of gas.

Abstract: The burner is capable of operating either on gas or fuel oil and includes a burner block with a high velocity discharge nozzle. Combustion air for the burner is rotationally spun to promote more complete combustion of the fuel and to reduce the formation of carbon deposits along the block and within the discharge nozzle. As a result of the spinning combustion air, a high rotational velocity is imparted to the flame so that the flame threads corkscrew-fashion out of the discharge nozzle and is formed with a hollow center.

Abstract: A crude oil burner is provided particularly suited for oil well testing in Arctic and sub-Arctic regions having a plurality of aligned and spaced air cones to the rear end of which crude oil is delivered, and into which air is induced. Air is also available at the space between the cones and at the front of the front cone. Gas assist heads are provided connected to a ring at the space between the cones and connected to a ring at the front of the front cone for inducing air and aiding in the combustion of the crude oil to provide smokeless combustion. The burner can be mounted for turning in accordance with the wind direction to avoid undesired deflection of the flame by the wind.

Abstract: A multiple fuel burner assembly, especially suited for use in kilns, includes:A. a forwardly elongated inner duct to deliver pulverized solid fuel to a burning zone beyond the end of the duct,B. multiple pipes spaced about the inner duct and opening generally forwardly to deliver fluid fuel to said zone beyond the ends of said pipes, andC. air delivery structure located outwardly of said inner duct and oriented to deliver air to the fuel delivered from said pipes and inner duct to said zone for combusting said fuel.

Abstract: An installation for burning waste solvents is characterized by the use of a concentrically constructed nozzle by means of which the waste solvents and a mixture of compressed air and fuel may be burned simultaneously. The compressed air/fuel mixture may either serve to warm up the incinerator prior to the introduction therein of the waste solvents or may be used to support the incineration of waste solvents when the latter have a low heat value.

Abstract: A gas mixer and reactor is provided which is especially suitable as a burner which includes an elongated gas flow chamber with a nozzle arrangement at its inlet end for passing a first gaseous reactant into the interior of the chamber toward the outlet from points uniformly about the inner periphery of the chamber, and an annular nozzle arrangement near the outlet of the gas flow chamber for directing another gaseous reactant or reactants through the outlet of the gas flow chamber and into a thermal reaction chamber which communicates with the outlet of the gas flow chamber. Also provided are processes utilizing the mixer and in particular a process for converting sulfur containing gas into sulfur.

Abstract: An injector formed of an outer Coanda nozzle, consisting of three bodies, is located inside a flame stabilization cylinder, also introduced into a supplementary ejection nozzle. The front body is endowed with a baffle followed by an adjustable slot and continued by a Coanda profile having a recess with several orifices. The injector is simultaneously fed with air and fuel, which mix due to the depression created by the Coanda effect.

Abstract: A combustion chamber device for the purification of process waste gases from poisonous, noisome and/or other noxious constituents by combustion while using a support combustion device and under conditions used in gas turbine technology. The process gases to be purified are fed into the combustion chamber through the axial central inlet thereof, and the combustion chamber is provided with a special inlet for further additional air. A flame tube is disposed inside the combustion chamber wall and spaced therefrom. The flame tube is arranged to be cooled by means of a film of the main part of the further additional air entering through the special inlet.