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6969486 |
Apparatus and method for treating pollutants in a gas using hydrogen peroxide and UV light
An apparatus for treating pollutants in a gas may include a source of hydrogen peroxide, and a treatment injector for creating and injecting dissociated hydrogen peroxide into the flow of gas. The...
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6962617 |
Method of removing mercury from exhaust gases
Efficient removal of mercury from the exhaust gases of an industrial process or combustion process can be achieved using an adsorbent that can be regenerated by a simple and efficient method. The...
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6960329 |
Method and apparatus for removing mercury species from hot flue gas
A method of removing mercury from flue gas containing mercury and particulate solids emanating from a fossil-fuel energy conversion plant and passing through a flue gas duct. The method includes...
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6960236 |
Clean room
A clean room has a cleaned air feeding apparatus 1 having a rotor 2 adsorbing gaseous chemical substances to an adsorbing part 16 and desorbing the adsorbed gaseous chemical substances at the...
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6960552 |
Decompositionally treating agent and decompositionally treating method for fluorocarbons
There are disclosed a decompositionally treating agent for fluorocarbons which comprises an aluminum compound and a lanthanoid compound as effective ingredients; a decompositionally treating agent...
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6955794 |
Slot discharge non-thermal plasma apparatus and process for promoting chemical reaction
A plasma reactor including a first dielectric having at least one slot defined therethrough, and a segmented electrode including a plurality of electrode segments, each electrode segment is...
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6953494 |
Sorbents and methods for the removal of mercury from combustion gases
A method for removing mercury and mercury-containing compounds from a combustion gas in an exhaust gas system has the steps of providing a mercury sorbent; injecting the mercury sorbent into a...
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6953557 |
Process and apparatus for treating semiconductor production exhaust gases
A process and an apparatus for treating exhaust gases, comprising an aeration stirring tank ( 5 ) employing an aqueous alkaline liquid, and, as a posterior stage, a gas-liquid contact device ( 7 )...
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6949234 |
Wet abatement system for waste SiH4
A new method of silane abatement is achieved. The novel silane abatement system comprises a water-filled chamber within an outer chamber. An air intake is located in one upper portion of said outer...
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6942840 |
Method for removal and stabilization of mercury in mercury-containing gas streams
The present invention is directed to a process and apparatus for removing and stabilizing mercury from mercury-containing gas streams. A gas stream containing vapor phase elemental and/or speciated...
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6929786 |
Method for separating zirconium and hafnium tetrachlorides with the aid of a melted solvent
A method of separating zirconium and hafnium tetrachlorides using a solvent comprising firstly an alkaline metallic solvent comprising a salt made up of an alkali metal chloride and an acidic metal...
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6913737 |
Method for the treating in exhaust gas and exhaust gas treating system
The present invention provides a method for the treatment of mercury present in exhaust gas wherein, after a chlorinating agent is added to exhaust gas containing nitrogen oxides, sulfur oxides and...
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6905665 |
Method for purifying carbon monoxide
A method for purifying carbon monoxide, which can efficiently remove metal carbonyl in carbon monoxide while suppressing the production of carbon dioxide, is provided by selecting a metal oxide...
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6900734 |
Capillary-discharge based detector for chemical vapor monitoring
A handheld/portable detector for chemical vapor monitoring includes a housing and a discharge chamber that is established therein. The plasma discharge has a relatively small volume, e.g., in the...
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6890507 |
Ozone treatment of fly ash
Carbon-containing fly ash has been treated with optimum amounts of ozone. There is homogenous treatment of the fly ash with ozone and over saturation with ozone is avoided. In a further embodiment...
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6887442 |
Process for the drying of a hydrocarbon stream
The invention concerns a process for the continuous drying of a hydrocarbon stream and comprises contacting the hydrocarbon stream with an ionic, liquid drying agent of a salt of a fluorinated...
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6881389 |
Removal of H2S and CO2 from a hydrocarbon fluid stream
A system for removal of Hydrogen Sulfide (H 2 S) and/or Carbon Dioxide (CO 2 ) from natural gas via absorption and disassociation utilizing a sea water contact system. In the preferred embodiment...
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6878354 |
Catalyst and process for exhaust purification
A catalyst for internal combustion engine exhaust purification without frequently switching to a rich burn mode. The catalyst includes a catalyst A containing an NO x absorbing substance and an NO...
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6868294 |
Feedback control method in V-shaped characteristic system, and NH3 injection rate control method for NOx removal apparatus using the same
In the NH 3 injection rate control method for an NO x removal apparatus, operating area of the apparatus is divided into first area in which molar ratio of NH 3 injection rate with respect to NO...
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6863874 |
Process and apparatus for treating combustion exhaust gas
A system and method for the control of emissions from a diesel engine exhaust, comprises a catalyst ( 14 ) to convert NO to NO 2 , a filter ( 16 ) to trap soot and hold it for combustion with the...
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6863005 |
Process to reduce mercury emission
In a method to decrease emission of mercury, a factor is selected to control a combustion process to generate a flue gas comprising fly ash with enhanced unburned carbon; the combustion process is...
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6855859 |
Method for controlling elemental mercury emissions
Chlorine and sulfide species are separately introduced to a flue gas passing through a scrubber in order to remove the elemental and oxidized mercury from the gas through the precipitation of...
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6855302 |
Method for emission control of dioxin and/or furan waste gas pollutants in a cement clinker production line
In order to provide a comparatively simple and cost-effective method for cement clinker production lines where especially raw materials and/or fuel/secondary fuel containing chlorine compounds and...
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6851119 |
Recording/reproducing device
A filter arrangement for a recording/reproducing wherein
an air filter is adapted to filter an air flow of ambient air present within the housing during operation of the device flowing over...
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6846472 |
Process for treating gaseous emissions generated during production of carbon anodes in an aluminum plant
A process for treating gaseous emissions generated during the production of carbon anodes in the aluminum industry. In this process, first gaseous emissions generated during green anode preparation...
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6833024 |
Abatement of effluent from chemical vapor deposition processes using ligand exchange resistant metal-organic precursor solutions
Apparatus and method for abatement of effluent from multi-component metal oxides deposited by CVD processes using metal source reagent liquid solutions which comprise at least one metal...
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6824752 |
Process and system for purifying gases
This invention is directed to a system and a process for protecting a gas purification system from damage comprising passing a stream of impure gas through a catalyst bed and measuring the...
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6818193 |
Segmented electrode capillary discharge, non-thermal plasma apparatus and process for promoting chemical reactions
A plasma reactor including a first dielectric having at least one capillary defined therethrough, and a segmented electrode including a plurality of electrode segments, each electrode segment is...
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6810657 |
Method and device for treating exhaust gases produced by an internal combustion engine
The invention relates to a method and an apparatus for the post-treatment of exhaust gas produced by an internal combustion engine ( 1 ), in particular in a motor vehicle, wherein the following are...
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6808692 |
Enhanced mercury control in coal-fired power plants
A method of treating a coal combustion flue gas, which includes injecting a molecular halogen or thermolabile molecular halogen precursor, such as calcium hypochlorite, able to decompose to form...
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6800265 |
Method for treating a gas containing a boric acid component
A method for treating a gas, which comprises contacting a gas containing a boric acid component in an amount of at least 15 mg/m 3 as converted into B 2 O 3 concentration in a standard state,...
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6797182 |
Process for the purification of organometallic compounds or heteroatomic organic compounds with hydrogenated getter alloys
A process for the purification of organometallic compounds or heteroatomic organic compounds from oxygen, water and from the compounds deriving from the reaction of water and oxygen with the...
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6790420 |
Control of mercury and other elemental metal emissions from combustion devices by oxidation
In a method of removing metals such as mercury from flue gas produced by combustion devices, ammonia and optionally carbon monoxide are injected into the flue gas in a manner so that there are...
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6790419 |
Purification of gaseous inorganic halide
The present invention provides an apparatus and method for the purification of gaseous inorganic halides utilizing a reactive metal and molecular sieves to remove impurities.
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6770119 |
Mercury removal method and system
The present invention provides a mercury removal method which can effectively remove very small amounts of mercury components present in a gas during wet gas purification such as coal or heavy oil...
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6761863 |
Process for the removal of impurities from gas streams
The present invention relates to a process for removing nitrogen oxides, sulfur oxides, mercury and mercuric oxide from gas streams such as furnace or utility boiler flue gas streams, particularly...
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6759018 |
Method for point-of-use treatment of effluent gas streams
A system for abating undesired component(s) from a gas stream containing same, such as halocompounds, acid gases, silanes, ammonia, etc., by scrubbing of the effluent gas stream with an aqueous...
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6759019 |
Process for desulfurization of exhaust gas with seawater
A method for removing an acidic component such as sulfite gas (SO 2 ) contained in an exhaust gas comprising by using a system comprising (a) a gas-liquid contact apparatus composed of an...
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6740226 |
Process for increasing hydrogen partial pressure in hydroprocessing processes
In a hydrocracking unit, the flash gases from the high-pressure separator are fed to the bottom of an absorption zone where the entering gases are counter-currently contacted with a lean solvent....
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6735980 |
Recovery of krypton and xenon
A method for recovering krypton and xenon from air comprises (a) separating an air feed stream into oxygen-enriched and nitrogen-enriched product streams; (b) reacting the oxygen-rich product...
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6735541 |
Process unit monitoring program
The present invention is a method to monitor and analyze the performance of a hydrocarbon-processing unit such as pipestill or hydrocracker unit. The invention includes the steps of collecting...
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6733734 |
Materials and methods for the purification of hydride gases
Regenerable gas purifier materials are provided capable of reducing the level of contaminants such as oxygen and moisture in a hydride gas stream to parts-per-billion levels or...
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6716750 |
System and method for processing residual gas
A system for processing residual gas that includes a chamber having at least one baffle for increasing gas flow path, a residual gas inlet mechanism connected to the chamber for supplying residual...
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6709487 |
Adsorbent for moisture removal from fluorine-containing fluids
An adsorbent, method, and apparatus involving same for the removal of moisture from a fluoride-containing fluid such as gaseous nitrogen trifluoride are disclosed herein. In certain preferred...
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6696030 |
Method for reducing the chemical conversion of oxidizable or disproportionable compounds contacting carbonaceous chars
A method is provided for reducing the chemical conversion of oxidizable or disproportionable compounds contained in liquid or gaseous process media which contact carbonaceous chars. In this method...
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6692711 |
Production of low sulfur syngas from natural gas with C4&plus /C5&plus hydrocarbon recovery
Sour natural gas is processed to remove the sulfur compounds and recover C 4+ /C 5+ hydrocarbons by scrubbing the gas with an amine solution to remove most of the sulfur, followed cooling the gas...
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6689252 |
Abatement of hazardous gases in effluent
An apparatus and method for reducing hazardous gases exhausted from a process chamber 25 includes an effluent plasma reactor 210 and a downstream catalytic reactor 220 . The reactor 210 may...
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6685903 |
Method of purifying and recycling argon
This invention is directed to a method for purifying argon from an impure argon stream. If the oxygen concentration in the impure argon is less than about 10 mole percent of oxygen, the invention...
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6676911 |
Exhaust gas treating agent, process for producing the same, and method of treating exhaust gas
The invention provides an exhaust gas treatment agent characterized in that it comprises calcium silicate hydrate particles having a mean particle diameter of 0.2 to 4 μm and a specific surface...
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6673323 |
Treatment of hazardous gases in effluent
A method for reducing hazardous gases exhausted from a process chamber includes an effluent gas treatment system with a gas energizing reactor and an additive gas source. Additive gas comprising...
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