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4331638 |
Method of dry scrubbing reaction products resulting from flame burning
A method of scrubbing reaction products resulting from flame burning of fuels containing impurities such as sulfur compounds, chlorine compounds, and fluorine compounds. The scrubbing is...
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4329932 |
Method of burning fuel with lowered nitrogen-oxides emission
A method of burning fuel with lowered emission of nitrogen oxides comprises feeding pulverized fuel to the main burner in a combustion furnace and additionally feeding pulverized fuel to the region...
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4315729 |
Gas burner
A gas burner capable of automatically shutting off the supply of a gas fuel when the content of the oxygen in the air supplied to the gas burner drops to a predetermined level. It incorporates a...
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4308810 |
Apparatus and method for reduction of NOx emissions from a fluid bed combustion system through staged combustion
Apparatus and method for the reduction of nitrogen oxides (NOx) in the emissions of a fuel burning fluidized bed combustion system. Using a staged combustion technique, an overfire air inlet is...
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4299086 |
Utilization of energy obtained by substoichiometric combustion of low heating value gases
The combustible component of a gas stream of low heating value is combusted using less than a stoichiometric amount of oxygen in the presence of an oxygenation catalyst and the heat energy in the...
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4297093 |
Combustion method for reducing NOx and smoke emission
A combustion method which can reduce the emission of NOx and smoke. In sharp contrast to the conventional combustion method, the method of the invention can remarkably reduce the emission of both...
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4289474 |
Process of combusting a premixed combustion fuel
A gaseous fuel-air premix combustion burner is disclosed wherein the production of oxides of nitrogen can be inhibited. By blowing secondary air onto at least a maximum temperature region of a...
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4288211 |
Process and device for the introduction of explosive gases into a combustion chamber
When explosive gases are introduced into a combustion chamber care must be taken that no pre-ignition occurs. To this end, the gas is spatially subdivided into discrete volume elements, for example...
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4287857 |
Burner-boiler combination and an improved burner construction therefor
A compact burner-boiler combination having an improved heating cycle for effecting substantial fuel saving and maximum boiler and combustion efficiency in a relatively simple and expedient manner....
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4285283 |
Coal combustion process
Disclosed is a process for combusting coal wherein the emission of SO x or the emission of SO x and NO x are minimized. The process comprises (a) providing a coal containing at least twice as...
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4255115 |
Method and apparatus for producing a hot gas flow
A method of producing a hot gas flow by combustion of preferably liquid fuels, by the following steps: (a) atomizing the liquid fuel to form fine particles; (b) further atomizing the thus...
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4255116 |
Prevaporizing burner and method
A burner body defines a combustion zone and a secondary dilution zone. A first inlet opening leads to the combustion zone to admit fuel and air while a second inlet opening leads to the secondary...
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4250820 |
Process and apparatus for operating a firebox with solid gasifiable fuel having poor kindling properties and low volatile gas contents
In order to burn a fuel of low ignition properties and low contents of volatile gases in steam generators: the combustion air is introduced in three batches at three successive places into the...
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4236464 |
Incineration of noxious materials
A combustion method and apparatus for disposal of materials that release noxious, corrosive, and/or toxic gases when burned, particularly halogens and/or acidic gases, is disclosed herein. In the...
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4205524 |
Methods of operating combustors
Methods of operating combustors to produce lower emissions, particularly lower emissions of nitrogen oxides and CO, including supplying separate streams of air to primary and secondary combustion...
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4204831 |
Fuel burner useful for carbon black production
A burner apparatus comprising in axial alignment a cylindrical first section connected through a restrictive opening to a frustoconical second section having its largest diameter at the downstream...
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4193773 |
Process for the partial combustion of pulverized coal
Process and apparatus for the partial combustion of pulverized coal, in which the pulverized coal, dispersed in an inert carrier gas, is supplied to a burner, and oxygen is injected into the stream...
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4146359 |
Method for reacting nongaseous material with a gaseous reactant
This invention relates to a new and novel method and apparatus for reacting nongaseous material with a gaseous reactant comprising introducing a first stream containing a nongaseous material into a...
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4144313 |
Method of purifying gases by combustion
In the complete and safe purification of waste gases which contain organic or inorganic combustible substances by thermal decomposition at temperatures between about 800° C. and 1000° C., wherein...
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4144017 |
Pulverized coal combustor
An apparatus and method whereby fuel is burned in serially connected furnaces under controlled combustion temperature and airflow conditions so as to inhibit the formation of nitric oxides while...
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4130388 |
Non-contaminating fuel burner
A fuel burner adapted to produce a stable, non-contaminating blue flame throughout a broad operating range. The burner includes a combustion zone into which is directly fed the combustion air....
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4118171 |
Method for effecting sustained combustion of carbonaceous fuel
A method for effecting combustion of carbonaceous fuel is operative to sustain the combustion at a predetermined rate or rates of total fuel demand, the fuel being distributed between two...
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4115050 |
Burner construction and method for burning liquid and/or gaseous fuel
A liquid and/or gaseous fuel is burned in a tubular combustion chamber which has at least one baffle wall therein with a central aperture therethrough, comprises directing the fuel into the...
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4113417 |
Combustion of hot gases of low calorific power
The complete combustion of hot gases of low calorific power is effected by introducing the gases into a combustion chamber at a pressure close to atmospheric pressure and at a temperature of...
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4112676 |
Hybrid combustor with staged injection of pre-mixed fuel
A combustor for a gas turbine engine which includes a fuel nozzle at the head end of the combustor, to provide a diffusion flame, and downstream inlet means at a plurality of axial dimensions of...
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4104018 |
Combuster
A combuster is provided for utilizing a combustible mixture containing fuel and air, to heat a load fluid such as water or air, in a manner that minimizes the formation of nitrogen oxide. The...
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4095928 |
Method of reducing nitrogen oxide emissions in flue gas
A process for the simultaneous combustion of nitrogen-rich fuels and nitrogen-poor fuels which results in the production of less nitrogen oxide emissions.
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4087962 |
Direct heating surface combustor
A direct heating surface combustor is provided that utilizes a non-adiabatic flame to provide a low-emission combustion for gas turbines. A fuel-air mixture is directed through a porous wall, the...
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4060378 |
Method of firing and furnace therefor
Reasons of ecology, health and prevention of corrosion require firing methods and furnaces with which the contents of soot and uncombustible gases such as carbon monoxide, hydrogen, hydrocarbons as...
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4054028 |
Fuel combustion apparatus
A fuel combustion apparatus of a double-shell construction in which the inner shell is composed of an upstream small-diameter section, a downstream large-diameter section, and a conically-shaped...
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4054407 |
Method of combusting nitrogen-containing fuels
A method for combusting nitrogen-containing fuel by: combusting a first fuel-air mixture in the presence of a catalyst in a first stage, operated fuel-rich so that the amount of air in the first...
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4052844 |
Gas turbine combustion chambers
Combustion chamber comprising a first combustion zone opening into a wider second combustion zone into which the combustion air is admitted through a practically frontal air entry comprising...
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4052138 |
Method of firing coal boiler to produce secondary fuel gas
A method of firing coal-powered boilers to produce both heat to operate the boiler at its full rated capacity, and also to produce a usable fuel gas generally equal in heat content to the heat...
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4050877 |
Reduction of gaseous pollutants in combustion flue gas
Fuel is burned in a primary combustion chamber with less than the air required for stoichiometric combustion so that the combustion gases have a high carbon monoxide (CO) and hydrocarbon content...
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4021186 |
Method and apparatus for reducing NO.sub.x from furnaces
NO x produced by combustion of nitrogen-containing fuels is reduced by a forced draft burner operating with below stoichiometric mixtures of air and fuel in a primary combustion chamber,...
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4021188 |
Burner configurations for staged combustion
Burner arrangements for staged combustion to decrease nitrogen oxides (NOx) during the combustion of hydrocarbon fuel with air. The burner arrangements have a combustion into which hydrocarbon fuel...
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4017253 |
Fluidized-bed calciner with combustion nozzle and shroud
A nozzle employed as a burner within a fluidized bed is coaxially enclosed within a tubular shroud that extends beyond the nozzle length into the fluidized bed. The open-ended shroud portion beyond...
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4012902 |
Method of operating a gas turbine combustor having an independent airstream to remove heat from the primary combustion zone
New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitrogen oxides. Methods and means are provided for supplying separate streams of air...
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4012488 |
Process for the treatment of sulfur and nitrogen oxides formed during power generation
A catalyst chamber capable of converting the oxides of sulfur to hydrogen sulfide and the oxides of nitrogen to inert nitrogen and ammonia in the presence of a reducing atmosphere is inserted...
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4008039 |
Low emission burners and control systems therefor
A burner for Rankine cycle engines which includes a combustor of the rotating atomizer type and a control system therefor which keeps the ratio of fuel and air supplied to the combustor at an...
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3993429 |
Gas conditioning means
A gas conditioning means and more particularly a gas conditioning means incorporating an improved method of providing sulfur trioxide for injection into a flue gas stream.
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3990837 |
Combustion equipment for gas turbine engines
The disclosure of this invention relates to a gas turbine engine combustion chamber including a flame tube having holes closed by a filling of a material of lower melting point than the flame tube...
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3982879 |
Furnace apparatus and method
Carbonaceous fuel is thermally combusted with an amount of air substantially less than that needed for complete combustion to carbon dioxide and water of all the combustible components in the fuel...
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3976420 |
Method and apparatus for burning fuels
Method and burner apparatus for burning fuels wherein an air-fuel premixture of a low fuel concentration formed by premixing a fuel with combustion air in an amount larger than the theoretical air...
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3973390 |
Combustor employing serially staged pilot combustion, fuel vaporization, and primary combustion zones
A low emission combustion chamber in which a premixed, fuel rich-air mixture is discharged uniformly into the hot products of combustion of a pilot combustion zone to be vaporized thereby and to...
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3958915 |
Method of burning emulsion oils
An emulsion oil containing oil and water in a ratio of 5 - 9.5:5 - 0.5 by volume is burned by two-stage combustion method or by the combination of two-stage combustion method and exhaust gas...
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3957420 |
Low NO.sub.x emission burners
The invention discloses a low NO x emission burner for use with an apparatus in which the material or materials are heated by the heat radiated from the radiation surface which is heated by the...
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3948223 |
Serially fired steam generator
A steam generator consists of several units in which combustion air is mixed with fuel at furnace sections placed in series. An excess of combustion air is used in the first furnace section and the...
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3925002 |
Air preheating combustion apparatus
A low emission combustion apparatus for a gas turbine engine employs vaporization of liquid hydrocarbon fuel to produce a mixture of vaporized fuel and primary or combustion air for a main...
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3918834 |
Method of reducing the concentration of nitrogen oxides in a gaseous effluent from a thermal plant
A method of reducing the concentration of nitrogen oxides in a gaseous effluent from a thermal plant fitted with burners, consisting in the burning of the fuel in two stages under the conditions of...
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