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7611564 |
Recovery of n-propyl bromide emissions
A process for recovery of n-propyl bromide solvent includes mixing a solvent laden vapor stream with an additive and reclaiming the solvent using a carbon adsorption system. A carbon adsorption...
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7597744 |
Use of molecular sieves for the removal of HFC-23 from fluorocarbon products
Use of molecular sieves to reduce the amount of trifluoromethane (HFC-23) present in a mixture of HFC-23 with other materials, particularly from mixtures containing HFC-23 and trifluoroiodomethane...
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7595033 |
Regeneration of nt-scr catalysts
A process and device for purifying flue gases in refuse incineration plants during regeneration of a catalyst which serves for reducing nitrogen oxides, by, in a first step, removing acidic...
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7556787 |
Method and apparatus for treating exhaust gases containing fluorine-containing compounds
A method for treating exhaust gases containing fluorine-containing compounds which comprises the steps of bringing an exhaust gas containing fluorine-containing compounds into contact with a metal...
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7524470 |
Reduced liquid discharge in wet flue gas desulfurization
One aspect of the invention relates to a method for removing contaminants from a flue gas stream ( 22 ). The method includes: removing fly ash from a flue gas stream ( 22 ) utilizing a particle...
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7514053 |
Method for removing sulfur dioxide, mercury, and nitrogen oxides from a gas stream
Methods for scrubbing gas streams to remove acid gases including sulfur dioxide, mercury-containing substances, and/or nitrogen oxides from the gas stream. The gas stream is contacted with a...
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7514052 |
Method for removal of mercury emissions from coal combustion
A method to reduce emissions in flue gas due to combustion of coal in a combustion unit including the steps of: combusting coal in a primary combustion zone of the combustion unit; releasing...
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7470413 |
Fluorine removal by ion exchange
A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of...
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7431904 |
Catalyst support material, catalysts prepared therefrom and process for the treatment of a flue gas
The present invention relates to a catalyst support material and catalysts made therefrom having improved resistance towards erosion. The catalyst support contains at least 20% by weight of TiO 2 ...
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7384615 |
Method oil shale pollutant sorption/NOx reburning multi-pollutant control
A method of decreasing pollutants produced in a combustion process. The method comprises combusting coal in a combustion chamber to produce at least one pollutant selected from the group consisting...
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7377959 |
Process and apparatus for decomposition treatment of volatile chlorinated organic compound
A large amount of a medium containing a volatile chlorinated organic compound (VOC) with a low concentration is passed through an adsorber filled with an adsorbent which adsorb and desorb the VOC...
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7347980 |
Process for treating fluorine compound-containing gas
A gas stream containing at least one fluorine compound selected from the group consisting of compounds of carbon and fluorine, compounds of carbon, hydrogen and fluorine, compounds of sulfur and...
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7326279 |
Method for removing harmful substance in vent gas
A method for removing harmful substances in a vent gas containing a halogen or halogen compound gas remaining in the pipeline of a cylinder cabinet, which comprises contacting the vent gas with a...
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7306775 |
Method for removing halogen series gas
A method for removing a halogen series gas, which comprises contacting a gas containing a halogen series gas forming at least one kind selected from the group consisting of HF, HCl, HBr and HI by...
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H002198 |
Multi-stage pyrolysis systems for treating chlorine contaminated wastes
A method of decontaminating solids contaminated with chlorinated hydrocarbons includes a first step of heating the contaminated solids at a temperature high enough to volatize chlorine contaminates...
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7241430 |
Activated carbon for odor control and method for making same
An activated carbon-metal oxide matrix is disclosed. The activated carbon-metal oxide matrix may be obtained by a method including the steps of: preoxidizing a carbon material, grinding the...
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7056483 |
Method for converting halogens and organic compounds to inorganic substances
A bed of calcium oxide and/or barium oxide in particulate form is continuously moved through a contact reaction zone such that it enters into countercurrent reaction with the feedstock and the...
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7052663 |
Combustion catalysts and processes for removing organic compounds
A process for removing an organic compound or compounds which is/are a chlorinated hydrocarbon or hydrocarbon by catalytic combustion, the process including the step of contacting the organic...
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7041264 |
Process for purifying octafluoropropane
A process for purifying octafluoropropane according to the present invention includes the step of contacting a crude octafluoropropane containing impurities with an impurity decomposing agent under...
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7022296 |
Method for treating flue gas
A multiple-field precipitator, flue-gas treating device, in accordance with the principles of the invention, includes a first section having a dual-function, sensible-cooling heat...
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7014831 |
Purification of sulfuryl fluoride
Sulfuryl fluoride, which is useful as a fumigant, may be contaminated with sulfur dioxide and possibly other impurities such as sulfuryl chloride, depending on the way it is produced. According to...
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7014824 |
Method for purifying process waste gases
The present invention relates to a method for purifying process waste gases by introducing them into a waste gas purification system that includes a reaction chamber and by post-treating the...
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6921519 |
Decomposition of fluorine containing compounds
A process for the decomposition and removal of one or more fluorine containing compounds from a first gaseous mixture comprising the one or more fluorine containing compounds and water vapour,...
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6905664 |
Method for removal of PCDD and PCDF from combustion gases
A method for the removal of micro-pollutants, in particular PCDD and PCDF, from the combustion gases resulting from the incineration of chlorinated organic wastes (ICG), the gases containing acidic...
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6896866 |
Method for purification of tungsten hexafluoride
A method for purifying tungsten hexafluoride of high purity, capable of producing tungsten hexafluoride of higher purity than that of the related art, readily and at a low cost. A method for...
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6888040 |
Method and apparatus for abatement of reaction products from a vacuum processing chamber
An exemplary method and apparatus for abating reaction products from a vacuum processing chamber includes a reaction chamber in fluid communication with the vacuum processing chamber, a coil...
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6884401 |
Method for removing volatile components from a high viscosity liquid by using rotation pack bed
A high viscosity liquid is fed into a rotation pack bed at a position with a distance far enough from a rotation axis, creating a centrifugal force exerted on the high viscosity liquid overwhelming...
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6881391 |
Method for removing halogen from a vent stream
A method for decreasing the environmental release of a halogen from a process for regenerating catalyst particles in a catalyst bed of a regeneration zone is disclosed.
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6869579 |
Process for treating exhaust gas
A process for treating and recovering CVD exhaust gas is provided, which can reduce periodical maintenance by converting the raw gas employed and the intermediate products contained in the CVD...
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6855304 |
Catalyst and process for removing organohalogen compounds
The present invention provides: a catalyst which has more excellent removability upon organohalogen compounds and is suitable for removing the organohalogen compounds from exhaust gases; and a...
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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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6843972 |
Method for purifying trichlorosilane
The invention relates to a method for removing anhydrous acids and hydrohalogens from trichlorosilane by contacting the trichlorosilane with solid bases. The invention further relates to the use of...
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6838065 |
Method and apparatus for treating waste gas containing PFC and/or HFC
A method for treating waste gas containing PFC and/or HFC, comprising contacting a mixture of gas waste containing PFC and/or HFC, ozone, and water with an iron oxide catalyst at a temperature...
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6818043 |
Vapor-phase contaminant removal by injection of fine sorbent slurries
A method for efficiently removing vapor-phase contaminants from gas streams is described. A powdered adsorbent such as activated carbon is ground into a fine powder by wet grinding to form a...
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6815573 |
Method of decomposing halogenated hydrocarbon gas
A method and an apparatus for decomposing halogenated hydrocarbon gas economically and stably without relying on any special treatment and without generating dioxins. A catalyst to decompose...
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6790421 |
Method for treating exhaust gas containing fluorine-containing compound
The present invention aims to provide exhaust gas treatment processes and systems capable of efficiently treating perfluoro-compounds (PFCs) for a long period. It also aims to provide exhaust gas...
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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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6770253 |
Process for producing silicon tetrafluoride
A process for producing silicon tetrafluoride includes reacting at 250° C. or higher elemental silicon with hydrogen fluoride, thereby producing a gas product containing silicon tetrafluoride....
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6767513 |
Method of treating exhaust gases containing halogen based compound
A method of treating exhaust gases containing halogen compound, the improvement in that the exhaust gases containing halogen compounds such as halogen gases and/or hydrogen halide gases...
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6764670 |
Removal of thiothionylfluoride from sulfur tetrafluoride
A process for removing thiothionylfluoride from a composition containing sulfur tetrafluoride and thiothionylfluoride includes contacting the composition with a high surface area material, such as...
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6764666 |
Process for treating gas containing fluorine-containing compounds and CO
The purpose of the present invention is to provide a process and an apparatus for efficiently treating a gas containing fluorine-containing compounds and CO to be discharged, for example, from the...
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6759565 |
Method for decomposing chlorine-containing organic compound contained in exhaust gas and catalyst for use in the method
The invention is to provide (1) a method for decomposing chlorine containing organic compounds (DXNs) contained in an exhaust gas in which method a high decomposition ratio of the DXNs can be...
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6752974 |
Halocarbon abatement system for a glass manufacturing facility
The invention relates to a method of treating a substantially gaseous halo-containing compound of an effluent of a glass manufacturing facility and a system for such method. The method includes the...
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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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6676913 |
Catalyst composition and method of controlling PFC and HFC emissions
The present invention relates to a catalytic process for the destruction of PFC's and HFC's using a catalyst which comprises aluminum oxide that has preferably been stabilized through the addition...
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6673326 |
Catalytic processes for the reduction of perfluorinated compounds and hydrofluorocarbons
A process for reducing perfluorinated compounds and/or hydrofluorocarbon compounds in a sample uses a catalyst made from aluminum oxide (Al 2 O 3 ), and one or more enhancers selected from the...
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6649135 |
Method of combustion or gasification in a circulating fluidized bed
A material containing combustible components is burned or gasified in a circulating fluidized bed comprising a turbulence chamber, a solids separator connected to the upper area of the turbulence...
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6645902 |
Adsorbent having capability of decomposing organic halogen compounds and method for producing the same
An adsorbent and process for producing an absorbent capable of decomposing an organic halogen compound, is provided. The adsorbent can adsorb organic halogen compounds contained in waste gases and...
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6645449 |
Method for eliminating halogenated and non-halogenated waste
A method for eliminating halogenated and non halogenated waste, whereby waste is reacted with products containing metal oxide in an oxygen-free medium at temperatures ranging from 800° C. to...
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6638488 |
Method and apparatus for removing organic hazardous substances using selected solvents
Method and apparatus for isolating, decomposing, and fixing the organic hazardous substances in a stable manner using chemical techniques and isolating and decomposing the organic hazardous...
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