Class / Patent application number | Description | Number of patent applications / Date published |
431005000 | Burning waste gas, e.g., furnace gas, etc. | 48 |
20090035709 | Gas combustion apparatus - Apparatus is described for combusting exhaust gases output from a plurality of process chambers. The apparatus comprises a plurality of exhaust gas combustion nozzles ( | 02-05-2009 |
20090053659 | GAS INDUCTION BUSTLE FOR USE WITH A FLARE OR EXHAUST STACK - A bustle for use on a flare or an exhaust stack of, for example, a landfill gas treatment system, efficiently transfers gas from the stack to a waste heat recovery system associated with the landfill gas treatment system without substantially affecting the operation of the landfill gas treatment process. The bustle enables the heat recovery system to recover at least a portion of the energy within the exhaust produced by the gas treatment system and to provide the recovered energy either indirectly or directly to a secondary process, such as a wastewater treatment process, to thereby reduce the amount of energy needed to be otherwise input into the secondary process. | 02-26-2009 |
20090246719 | METHOD OF OPERATING A FURNACE - A method of firing a burner into a furnace process chamber supplies the burner with fuel and combustion air at a ratio that provides a level of excess air. The method includes the steps of reducing the flow rate of combustion air, and maintaining the level of excess air when the flow rate of combustion air is being reduced. Other steps include withdrawing exhaust gas from the process chamber, and supplying the burner with the exhaust gas at an increasing flow rate when the flow rate of combustion air is being reduced. | 10-01-2009 |
20090311638 | Burner and Method for Alternately Implementing Oxycombustion and Air Combustion - Fuel is combusted with an oxidizer and at least one mainly inert gas, where the mainly inert gas is injected in the form of a divergently swirled jet around the flame and a convergently swirled jet surrounding the divergently swirled jet. | 12-17-2009 |
20100081098 | Combustion System with Precombustor for Recycled Flue Gas - A precombustor system to be used in conjunction with an oxy-fuel burner employing recycled flue gas is disclosed. A method of introducing streams into the precombustor to achieve desired improvements in flame properties is also disclosed. | 04-01-2010 |
20100291492 | AIR FLARE APPARATUS AND METHOD - A flare apparatus for discharging and burning flare gas in the atmosphere is provided. The flare tip includes a flare gas conduit having a flare gas discharge opening and a combustion air conduit having a combustion air discharge opening. All of the flare gas to be flared is discharged through the flare gas discharge opening into a unified column of air discharged through the combustion air discharge opening. The flare gas discharge opening and the combustion air discharge opening are positioned with respect to one another such that flare gas discharged from the flare gas discharge opening is discharged inwardly into combustion air that is discharged from the combustion air discharge opening and admixed therewith. Essentially all of the discharged flare gas is admixed with discharged combustion air or external atmospheric air outside of the flare apparatus thereby preventing internal burning. A method of flaring a mixture of flare gas and combustion air is also provided. | 11-18-2010 |
20100323308 | SORBENTS FOR COAL COMBUSTION - Sorbent compositions containing halogen and calcium are added to coal to mitigate the release of sulfur and/or other harmful elements, including mercury, into the environment during combustion of coal containing natural levels of mercury. | 12-23-2010 |
20110027729 | OFF-GAS FLARE - An off-gas flare system for disposing of a waste gas stream containing BTEX and VOC contaminants, and for safely handling slugs of excess liquids entrained in the waste gas stream. The flare system includes a flare stack, an enclosed steam tank disposed within the flare stack for receiving the waste gas stream and vaporizing any liquids in the waste gas stream into vapors, and an enclosed liquid tank disposed below the steam tank and in fluid communication with the steam tank for receiving the heated waste gas and liquid vapors and for temporarily containing any excess non-vaporized liquids. The flare also includes a waste gas burner disposed in the flare stack adjacent the steam tank and in fluid communication with the liquid tank, and a continuous means for igniting the waste gas burner. | 02-03-2011 |
20110117505 | TERTIARY AIR ADDITION TO SOLID WASTE-FIRED FURNACES FOR NOX CONTROL - Through the addition of tertiary air and a reduction of secondary air, NOx emissions from a waste-to-energy (WTE) boiler may be reduced. The tertiary air is added to the WTE at a distance from the secondary air, in a boiler region of relatively lower temperatures. A secondary NOx reduction system, such as a selective non-catalytic reduction (SNCR) system using ammonia or urea, may also be added to the boiler with tertiary air to achieve desirable high levels of NOx reductions. The SNCR additives are introduced to the WTE boiler proximate to the tertiary air. | 05-19-2011 |
20110195366 | METHOD FOR COMBUSTION OF A LOW-GRADE FUEL - Method for combustion of a fuel uses an existing air burner ( | 08-11-2011 |
20120015308 | HYBRID FLARE APPARATUS AND METHOD - A method of operating a flare assembly is provided. If it is determined that the injection of primary steam into the combustion zone is necessary to achieve smokeless operation, primary steam is injected through a steam injector assembly into the combustion zone. If it is determined that steam is not necessary, an alternative gas is discharged though the steam injector assembly into the combustion zone. In one embodiment, the alternative gas is heated. In another embodiment, if it is determined that steam is necessary, a maximum allowable flow rate of steam is calculated, and the flow rate of steam is modulated to achieve smokeless operation and avoid a flow rate of steam in excess of the maximum allowable flow rate of steam. A flare assembly is also provided. | 01-19-2012 |
20120100491 | Semiconductor Production Equipment Including Fluorine Gas Generator - A semiconductor production equipment includes a fluorine gas generator, and a detoxification device for combusting a waste gas containing a fluorine-based gas. The fluorine gas generator is configured to electrolyze hydrogen fluoride in an electrolytic bath of a molten salt containing hydrogen fluoride to generate a main product gas whose major component is fluorine gas at an anode side and generate a by-product gas whose major component is hydrogen at a cathode side. The semiconductor production equipment further includes a lead-out line for introducing the by-product gas generated from the fluorine gas generator to the detoxification device. The detoxification device includes a mechanism for using the by-product gas sent to the detoxification device as a combustion agent. | 04-26-2012 |
20120231399 | FLARE TIP HAVING INTERNAL SPIN VANES - A flare tip for the burning and disposal of combustible waste gases including internal spin vanes is provided. By providing a plurality of internal spin vanes within the waste gas inlet of a flare tip, the efficiency of combustion of waste gas can be increased. | 09-13-2012 |
20120237882 | Flue Gas Recirculation Method and System for Combustion Systems - 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. | 09-20-2012 |
20120282555 | HOT SURFACE IGNITION ASSEMBLY FOR USE IN PILOTS FOR FLARING, INCINERATION, AND PROCESS BURNERS - An ignition assembly for use in pilots for flaring, incineration, and process burner applications, includes a hot surface igniter assembly specifically located in the pilot head or combustion chamber of a flame front ignition system for providing a pilot ignition source. The pilot head is positioned proximally to the exhaust exit of a flare gas stack. The hot surface ignition assembly is positioned proximally to the pilot head. The hot surface ignition assembly passes electric current through a ceramic-insulated element in order to produce heat by induction sufficient to ignite said pilot gas. A thermocouple, or other form of flame sensor, is provided for detecting and a sensing the existence of pilot flame and for controlling the ignition sequence. | 11-08-2012 |
20130089822 | METHOD FOR UTILIZATION OF LOW-CONCENTRATION GAS MIXTURES OF COMBUSTIBLE GAS AND AIR WITH STABLE HEAT ENERGY RECOVERY AND FLOW REVERSAL DEVICE FOR IMPLEMENTATION OF THE METHOD - The invention refers to the method for the utilization of low-concentration mixtures of a combustible gas and air with the stable recovery of heat and the flow-reversal device for the embodiment of the method. The method consists in the combustion, with heat recovery, of the mixtures in the flow-reversal device having at least a single pair of combustion sections, each of which has the structural packing of monolith blocks with small channels characterized by low pressure drop, provided with an internal heating device, temperature and composition sensors and the elements of the automatic control system, supplied with the low-concentration mixture with the combustible component and connected with the heat recovery apparatus through the pipeline, wherein the quantity of energy transferred in the heat recovery apparatus ( | 04-11-2013 |
20130115560 | Fuel-Fired Furnace and Method for Controlling Combustion in a Fuel-Fired Furnace - Fuel-fired furnace and a method for operating it, in which method: a main oxidizing agent is injected at a controlled flow rate into the combustion chamber of the furnace; the combustible material is burnt in the combustion chamber with the main oxidizing agent, producing thermal energy and flue gases at a temperature higher than 600° C.; the flue gases are removed via an exhaust duct, said removed flue gases possibly containing residual materials that could be oxidized, the exhaust duct being equipped with an inlet for a diluting oxidizing agent downstream of the combustion chamber; the residual materials that could be oxidized are burnt with the diluting oxidizing agent by means of a flame at the inlet for the diluting oxidizing agent; the flame intensity inside the exhaust duct is detected; and the flow rate at which the main oxidizing agent is injected into the combustion chamber is controlled according to the detected flame intensity. | 05-09-2013 |
20130244187 | HIGH EFFICIENCY LOW NOx EMISSION BURNER APPARATUS - A high efficiency low NO | 09-19-2013 |
20130295509 | METHOD FOR THERMALLY AFTER-BURNING WASTE GASES FROM ACROLEIN AND HYDROCYANIC ACID PRODUCTION - The invention relates to a method for thermally after-burning the waste gas flows developing during the production of acrolein in a gas phase process and for thermally after-burning the waste gas flows developing during the production of hydrocyanic acid in a gas phase process, characterized in that the waste gas flows from the production of acrolein and the waste gas flows from the production of hydrocyanic acid are supplied to a joint thermal after-burning process. | 11-07-2013 |
20130309616 | Rapid Gas Exchange and Delivery System - An apparatus and method are provided for a gas distribution system that allows for the rapid displacement of an extraneous gas in the distribution system by a primary gas. The gas distribution system utilizes a gas accumulator to aid in the rapid displacement of the extraneous gas. In one embodiment a flare pilot system uses the inventive distribution system to allow for the rapid purge of air from the flare pilot system by a fuel. | 11-21-2013 |
20140080071 | METHOD AND DEVICE FOR CLEANING AN INDUSTRIAL WASTE GAS COMPRISING CO2 - A gas treatment plant ( | 03-20-2014 |
20140106282 | LOW-POLLUTION BURNING METHOD USING SYSTEM FOR INDIVIDUALLY CONTROLLING CO AND NOx - The disclosure relates to a waste gas purification method, and more particularly, to a waste gas burning method of reducing CO and NOx by burning waste gases using a system for individually controlling CO and NOx. In accordance with the disclosure, there is provided a low-pollution burning method using a system for individually controlling CO and NOx including a waste gas introduction and flame injection step; a first waste gas burning step; and a second waste gas burning step. | 04-17-2014 |
20140147795 | GAS FLARE SYSTEM AND METHOD OF DESTROYING A FLAMMABLE GAS IN A WASTE GAS STREAM - The gas flare system includes a vertical flare stack having an opened top end and a bottom floor wall. A weatherproof protective hood arrangement prevents rain and snow from entering through the opened top end. The gas flare system also includes a burner arrangement provided through the bottom floor wall. The burner arrangement receives a waste gas stream from a waste gas circuit and also primary air. Secondary air orifices around the burner supply secondary air coming from a plenum housing located directly underneath the bottom floor wall. The gas flare system can destroy the flammable gas in the waste gas stream with a combustion efficiency of more than 99% under almost any operating conditions. It can start automatically and operate efficiently without any supervision under any possible atmospheric conditions. A method of destroying a flammable gas in a waste gas stream is also disclosed. | 05-29-2014 |
20140199639 | Process for Managing Photobioreactor Exhaust - There is provided a process for growing a phototrophic biomass in a reaction zone, wherein the reaction zone includes a reaction mixture that is operative for effecting photosynthesis upon exposure to photosynthetically active light radiation, wherein the reaction mixture includes phototrophic biomass that is operative for growth within the reaction zone. The process includes supplying at least a fraction of gaseous exhaust material, being discharged from an industrial process, to the reaction zone, exposing the reaction mixture to photosynthetically active light radiation and effecting growth of the phototrophic biomass in the reaction zone, wherein the effected growth includes growth effected by photosynthesis, and modulating distribution of a molar rate of supply of carbon dioxide, being exhausted from the reaction zone, as between a smokestack and at least another point of discharge. | 07-17-2014 |
20140272729 | FLUID BED REGENERATIVE THERMAL OXIDIZER AND A METHOD FOR ITS USE - The present device is a fluid bed regenerative thermal oxidizer configured to minimize dead spaces within it and eliminate the need for complex valve systems, which are typically required to move treated and untreated air across fixed beds. The present device can be a fluid bed regenerative thermal oxidizer comprising a vertical stack having a combustion chamber near its interior center and desorber shelves located within the vertical stack above the combustion chamber and adsorber shelves located within the vertical stack below the combustion shelves. Ceramic spheres can be used as heat sinks that flow from the desorber shelves, around the combustion chamber and onto the adsorber shelves and then back to the desorber shelves. In this way heat from the combustion can be captured by the heat exchange material on the desorber shelves and released to preheat untreated air on the adsorber shelves. | 09-18-2014 |
20140322657 | THERMAL AFTERBURNING SYSTEM AND METHOD FOR OPERATING SUCH A SYSTEM - A thermal afterburning system and a method for operating such a system are described, in which method or system a burner gas is fed in a conventional manner to a burner heating the combustion space of a combustion chamber, and exhaust air with a pollutant load is fed to the combustion space of the combustion chamber. The clean air produced inside the combustion space during the combustion processes is discharged. At the same time the carbon monoxide content of said air is measured. The supply of burner gas to the burner is regulated in such a manner that a predetermined target value for the carbon monoxide content is maintained. In this manner, the temperature in the combustion space is kept only sufficiently high as is required to achieve the desired purity of the clean gas given the respective pollutant load of the exhaust air. | 10-30-2014 |
20140329185 | APPARATUS AND METHOD FOR MINIMIZING SMOKE FORMATION IN A FLARING STACK - An apparatus and method for minimizing smoke formation in the operation of a flaring stack. The apparatus includes a generally annular gas deflector having an outer surface for deflecting the waste gas therealong. A plurality of lobes extend radially from the deflector to provide improved mixing between the waste gas, steam, and combustion air during combustion to reduce smoke formation. | 11-06-2014 |
20140329186 | APPARATUS AND METHOD FOR MINIMIZING SMOKE FORMATION IN A FLARING STACK - An apparatus and method for minimizing smoke formation in the operation of a flaring stack. The apparatus includes a generally annular gas deflector having an outer surface for deflecting the waste gas therealong. A plurality of lobes extend radially from the deflector to provide improved mixing between the waste gas and combustion air during combustion to reduce smoke formation. | 11-06-2014 |
20150050603 | Dual-Pressure Flare System and Method of Use - A dual-pressure flare system and a method of its use. The dual-pressure flare system includes a dual-pressure flare stack having a central axis that is aligned with the center of a high-pressure outlet; a high-pressure flue having a central axis that is co-linear with the central axis of the dual-pressure flare stack; and a low-pressure flue connected to a low-pressure tip. Some exemplary embodiments of the system further include an air-assist assembly having an air-supply connection connected to an air blower and a mixing chamber, wherein the mixing chamber surrounds the low-pressure tip. In some exemplary embodiments, the air-supply connection is disposed outside the dual-pressure flare stack and the high-pressure flue. | 02-19-2015 |
20150050604 | HIGH-EFFICIENCY DUAL FLARE SYSTEM - A dual-pressure flare system and a method of its use. The dual-pressure flare system includes a dual-pressure flare stack having a central axis that is aligned with the center of a high-pressure outlet; a high-pressure flue having a central axis that is co-linear with the central axis of the dual-pressure flare stack; and a low-pressure flue connected to a low-pressure tip. Some exemplary embodiments of the system further include an air-assist assembly having an air-supply connection connected to an air blower and a mixing chamber, wherein the mixing chamber surrounds the low-pressure tip. In some exemplary embodiments, the air-supply connection is disposed outside the dual-pressure flare stack and the high-pressure flue. | 02-19-2015 |
20150099231 | INTEGRATED VENT GAS SEPARATOR AND FLARE STACK - According to one aspect, an apparatus includes a separator vessel adapted to separate solid and liquid materials from gas materials; a flame arrestor in fluid communication with the separator vessel and through which the gas materials are adapted to flow; and a flare stack adapted to burn off the gas materials. The flare stack includes a vent pipe and an igniter. In another aspect, a system at a wellsite includes one or more separators adapted to be in fluid communication with a wellbore; one or more vent gas lines in fluid communication with the one or more separators; and an integrated vent gas separator and flare stack. In an exemplary embodiment, the one or more separators comprise at least one of a mud-gas separator and a shale-gas separator. In yet another aspect, a kit has first and second configurations. In still yet another aspect, a method is provided. | 04-09-2015 |
20150308681 | FLARE GAS ACTUATED VELOCITY SEAL AND METHOD OF USE THEREOF - A flare gas actuated velocity seal and method of use thereof. The velocity seal is actuated by increases and/or decreases in the pressure of a flare gas flow in a flare stack. The velocity seal is positioned upstream of a burner tip within the gas flow through the stack. The flare gas actuated velocity seal and method of use provide a back-pressure to the flare gas flow that is generally constant in proportion to the pressure of the gas flow preventing air from flowing into the stack even at very low rates. | 10-29-2015 |
20150308682 | ENCLOSED FLARE STACK AND METHOD OF FLARING WASTE GAS - An enclosed flare stack having expanded air entries for flaring waste gas. The flare stack includes an enclosure assembly having a bottom portion with expanded air entries and an upper portion through which the flared waste gas escapes. The enlarged air entries at the bottom end of the stack to reduce entry pressure loss and to increase entrained air flow when flaring waste gas. The enclosed flare stack and method of flaring waste gas also greatly reduce the height of the stack enclosure without greatly increasing the size of the flare windows. | 10-29-2015 |
20150330626 | MULTIPHASE BURNER - A multiphase burner for flaring gaseous/liquid combustible mixtures is disclosed. The burner may include a hollow base with an inlet for receiving the combustible gas/liquid mixture as well as a distal end that may be coupled to or that forms a nozzle cap. The nozzle cap may form as first outlet. The base may be coupled to a central body and a hollow bushing that encircles at least part of the central body. The base may form a mouth disposed between the inlet and the central body. The mouth may be in communication with a first passage that extends from the mouth to the first outlet and between the bushing and the distal end of the base. The mouth may be in communication with a second passage that extends from the mouth to the second outlet and between the bushing and central body. | 11-19-2015 |
20150354815 | Gas Assist Assembly for Use with a Waste Gas Flare Stack - A gas assist flare tip for enhancing smokeless combustion of a flare gas. The assist tip which has a shroud positioned on a flare stack, the shroud having an outer annular portion and an inner tubular portion which fits over the riser. There is an annular plenum which is partially formed by the tubular portion and the outer portion and has an annular vent proximate the open end of the riser. There is at least one air jet eductor having a discharge outlet opening into the plenum. | 12-10-2015 |
20160047544 | METHOD FOR COMBUSTION OF A LOW-GRADE FUEL - A method includes combustion products from combustion of fuel with oxidant brought first through a first heat exchanging step ( | 02-18-2016 |
20160068390 | PROCESS FOR UTILIZING BLAST FURNACE GASES, ASSOCIATED GASES AND/OR BIOGASES - The invention relates to a process for utilizing a hydrocarbon-comprising and/or carbon dioxide-comprising coproduct gas, accompanying gas and/or biogas, wherein hydrocarbon-comprising and/or carbon dioxide-comprising coproduct gas, accompanying gas and/or biogas is introduced into a reaction space and the multicomponent mixture comprised in the coproduct gas, accompanying gas and/or biogas is converted in a high-temperature zone at temperatures of more than 1000° C. and in the presence of a carrier into a product gas mixture which comprises more than 95% by volume of CO, CO | 03-10-2016 |
20160076765 | METHOD FOR COMBUSTING EXHAUST GAS WITH OXYGEN FEED LINE - The exhaust gases stemming from an oil conveyance such as in a refinery or a chemical factory are flared with oxygen-containing gas fed into the flame, in particular with oxygen-enriched air with a high oxygen content or technically pure oxygen, so as to achieve as soot-free a combustion as possible that also generates less environmentally harmful emissions. The device for combusting exhaust gases is a combination of an exhaust gas pipe, an ignition device and an oxygen line, which is connected with an oxygen tank. The oxygen feed line is used in particular during operational malfunctions instead of a steam feed line or as an additional feed line when not enough steam is generated by the chemical plants. | 03-17-2016 |
20160097532 | METHOD AND SYSTEM FOR ENERGY GENERATION IN A CHEMICAL PLANT BY UTILIZING FLARE GAS - The present techniques provide systems and methods for recovering energy from flare gases in chemical plants and refineries. The systems use an engine to burn a portion of gas diverted from the flare system. The engine may be a reciprocating engine, or a burner in a boiler system, among others. The power generated by burning the flare gas is then used to power an energy recovery device. The energy recovery device may be an electrical generator, a compressor, or a steam boiler, among others. | 04-07-2016 |
20160109117 | Secondary Burning of Gases from the Combustion of Fossil Fuels - A system for reducing pollutants from the burning of a fossil fuel includes a pressure vessel containing in its interior a feedstock (e.g., methanol) and at least one set of electrodes. An electric arc is formed between the electrodes and the feedstock is exposed to a plasma of the electric arc thereby converting at least some of the feedstock into a gas. There are controls for the electric arc and a way to collect the gas. The gas is mixed with flue gases from burning of fossil fuels and secondarily burned (the mixture of flue gases and the gas in combination are ignited), thereby reducing the amount of pollutants. | 04-21-2016 |
20160109121 | APPARATUS AND METHOD FOR RECOVERING OFF-GASES FROM NATURAL GAS DEHYDRATOR - An apparatus and method for reclaiming uncondensed hydrocarbons normally exhausted to the atmosphere from a still column of a glycol dehydrator system, and combusting the uncondensed hydrocarbons in a burner assembly of a reboiler after the burner assembly has been ignited by fuel gas. | 04-21-2016 |
20160109122 | EXCESS GAS COMBUSTION IN HEAVY OIL PRODUCTION - A system and method for vent gas combustion in storage tank for heavy oil production is provided. Auxiliary burners located are provided for combusting the well casing gas. A burner management system for controlling the auxiliary burners is provided which receives a gas pressure value and initiates the auxiliary burners based upon one or more threshold values when the gas pressure exceeds the one or more pressure values. An auxiliary exhaust stack may be collocated with a main exhaust stack of a tank heater for the storage tank. | 04-21-2016 |
20160131361 | BURNER ASSEMBLY FOR FLARING LOW CALORIFIC GASES - A burner assembly ( | 05-12-2016 |
20160153655 | RADIANT BURNER | 06-02-2016 |
20160178197 | Oil/Gas Burners and Method | 06-23-2016 |
20160201898 | METHOD FOR DISTRIBUTING GAS FOR OXY-FUEL COMBUSTION IN CIRCULATING FLUIDIZED BED | 07-14-2016 |
20170234531 | Wellhead Gas Heater | 08-17-2017 |
20220136197 | OFFSHORE OIL SPILL COLLECTOR DURING FLARING OPERATION - An apparatus for collecting spilled liquid hydrocarbons includes a support beam coupled to an oil rig, the support beam positioned below a flare boom, and a spill pan coupled to an end of the support beam, the spill pan positioned below a burner nozzle of the flare boom. A method includes coupling an oil spill collector to an offshore rig below a flare boom, the oil spill collector including a support beam coupled to the offshore rig and a collection device coupled to an end of the support beam, positioning the collection device below a burner nozzle of the flare boom such that the collection device is horizontally aligned with the burner nozzle, and collecting spilled liquid hydrocarbons in the collection device from the flare boom. | 05-05-2022 |