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7625537 |
Integrated dry and wet flue gas cleaning process and system
A process and system for removing sulfur oxide, other gases, and particulate from a flue gas. The process includes treating flue gas with a slurry formed from water, an alkaline reagent, and the...
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7622096 |
Multilayered catalyst compositions
A layered three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed....
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7622092 |
Method and device for removing mercury
A mercury removing device includes a gasification unit that converts a non-gaseous-mercury-chlorinating agent, which is non-gaseous at room temperature and normal pressure, into...
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7622091 |
Methods and systems for reducing NOx emissions in industrial combustion systems
A method for operating a combustion system to facilitate reducing emissions from the system is provided. The method includes supplying an aqueous selective reducing agent from an aqueous selective...
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7621987 |
Self regenerating desulfurizer for gaseous fuels
In one embodiment the present invention provides for a regenerable sulfur remover that comprises a gaseous flow 2 , a first layer in line with the gaseous flow 6 , and a second layer 8 in line...
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7618604 |
Method and apparatus for removing gaseous mercury in flue gas
An object of the present invention is to provide a method for removing gaseous mercury in flue gas that make it possible to remove mercury in flue gas extremely satisfactorily while handling is...
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7618595 |
Assembly for purifying toxic gases from production processes
An assembly is provided for purifying toxic gases from production processes by thermal conversion in a reactor chamber and subsequent treatment of reaction products with a sorption agent in a...
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7615200 |
Selective catalytic reduction of NOx enabled by urea decomposition in heat-exchanger bypass
Disclosed are a process and apparatus for selective catalytic reduction of NO x . The process is enabled by passing a heat exchanger section, such as an economizer, of the boiler in advance of an...
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7611684 |
Effluent gas scrubber and method of scrubbing effluent gasses
An effluent gas scrubber and a method of scrubbing effluent gases are provided. An inlet port receives an effluent gas. The gas passes through successive chambers in which it is sprayed with a...
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7611561 |
Diesel exhaust filter construction
A diesel exhaust filter construction includes a rectangular filter block, an elongated non-rectangular jacket with oval cross section, and support structure supporting the filter block in a center...
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7608232 |
Treatment method and treatment apparatus for gas containing nitrous oxide
Nitrous oxide-containing gas is subjected to heat exchange with decomposed gas from a nitrous oxide decomposition catalyst-filled reactor and then contacted with a heater comprising integrally...
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7608226 |
Exhaust stream treatment
A method comprises injecting a reductant stream comprising a hydrocarbon reductant and water into an exhaust chamber comprising a nitrogen oxide-containing exhaust stream; contacting a composition...
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7601317 |
Process for disposing waste gas comprising sulfur oxides and apparatus thereof
A method for enlarging the particle diameters of sulfuric acid mists in waste gas and collecting the sulfuric acid mists in high efficiency is provided. A process for disposing waste gas containing...
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7601306 |
Diesel engine particulate filter
A diesel engine particulate filter (DPF) comprising a case cylinder with a filter space formed by the inner retention cylinder and outer retention cylinder which traverse the radial symmetry of the...
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7597865 |
Nitrogen oxide removal catalyst system and nitrogen oxide removal method
Provided in a catalyst system are: a first reaction part fitted with a first catalyst containing, as active constituents, at least, a complex oxide consisting of two or more oxides selected from...
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7596943 |
Method for removing soot of combustion exhaust gas
Disclosed is a method of processing a composition comprising soot. The method includes supplying a first composition comprising soot particles to a first chamber. The first chamber is separated...
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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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7594810 |
High-voltage discharging reactor processing exhausted hydrogen gas
The present invention provides a reactor utilizing high-voltage discharge for processing exhausted hydrogen gas emitted during membrane plating, etching, or washing of semiconductors, where higher...
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7591987 |
Method and apparatus for treating ammonia-containing gas
A method for treating an ammonia (NH 3 )-containing gas, which comprises causing the NH 3 -containing gas to pass through a catalyst tower ( 9 ) firstly with a pre-treatment catalyst layer ( 1 )...
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7585478 |
Exhaust-gas purifying catalyst
An exhaust-gas purifying catalyst includes a mantle, two or more honeycomb-shaped supports fastened in the mantle so as to be separated at intervals, and a catalytic layer disposed on the...
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7572414 |
Modular system and method for the catalytic treatment of a gas stream
A system for catalytically treating a gas stream includes a gas phase reactor containing a catalyst for the treatment of the gas stream in at least one catalyst bed having an upstream end and a...
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7569193 |
Apparatus and method for controlled combustion of gaseous pollutants
The present invention relates to systems and methods for controlled combustion of gaseous pollutants while reducing and removing deposition of unwanted reaction products from within the treatment...
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7566423 |
Air purification system employing particle burning
An air purification system includes a reverse flow heat exchanger, a combustion chamber and a means for heating particles configured to cause particles in air to combust in the chamber. The reverse...
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7560084 |
Method and device for separation of sulphur dioxide from a gas
A system for separating sulfur dioxide from a gas using an aqueous absorption liquid. The system includes a housing, an apertured plate, an outlet box, a distribution mechanism, a container, and a...
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7560079 |
Exhaust gas-purifying apparatus
An exhaust gas-purifying apparatus includes an NO x sorbing-and-reducing first catalyst, a filter second catalyst, and an NO x sorbing-and-reducing third catalyst, which are disposed in an...
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7550119 |
Regeneration device of exhaust gas purification filter and filter regeneration method
A regeneration device of an exhaust gas purification filter that reduces the regeneration time of the filter. The regeneration device includes a plurality of first temperature detectors ( 26 a, 26...
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7547418 |
Fluidized-bed reactor system
A fluidized-bed reactor comprising a chamber defining a hollow interior region and having a lower surface; a first input for introducing a contaminated gas into the hollow interior region; a...
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7544339 |
Method and apparatus for removing mercury from combustion exhaust gas
A method for reducing mercury emissions in combustion flue gas is provided. The method includes combusting coal such that a flue gas flow is created. The flue gas flow includes at least mercury and...
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7544338 |
Mercury removal system and mercury removal process
Provided is a system for removing mercury from a mercury-containing exhaust gas, which contains a mercury chlorinating agent feed unit for feeding a mercury chlorinating agent to an flue exhaust...
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7534400 |
Wet scrubbing apparatus for controlling NOx emission
An apparatus for controlling NOx emissions which includes a chamber having a wall surface and an interior, a flue gas entrance and a flue gas exit for a flue gas to enter and exit the interior of...
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7531153 |
Methods and apparatus for removing mercury from combustion flue gas
A method for reducing an amount of mercury in flue gases generated by the combustion of coal is provided. The method includes combusting a quantity of coal and a quantity of air within a primary...
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7524473 |
Method of mercury removal in a wet flue gas desulfurization system
Controlling the reductive capacity of an aqueous alkaline slurry ( 23 ) in a wet scrubber makes it possible to accurately control the mercury emission from the scrubber to a desired value. One...
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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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7524464 |
Smart disposable plastic lab-on-a-chip for point-of-care testing
Disclosed herein is a fully-integrated, disposable biochip for point-of-care testing of clinically relevant parameters. Specifically, in accordance with an embodiment of the present invention, the...
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7521033 |
Exhaust inlet metallic foam trap coupled to a downstream monolithic precious metal catalyst
The present invention is directed to an improved apparatus and method of minimizing catalyst poisoning from exhaust gas streams containing inorganic deposits and particulate matter. More...
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7521031 |
Method and apparatus for treating exhaust gas
A method for treating exhaust gas includes: adsorbing target components in the exhaust gas with an adsorbent ( 5 ); introducing a nitrogen gas with an oxygen concentration of 10 vol % or less and a...
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7521030 |
Materials treatment
A material contaminated with a solvent is treated with a hydrofluorocarbon to remove the contaminant. A preferred hydrofluorocarbon is tetrafluoroethane. Apparatus for carrying out the process is...
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7521025 |
Honeycomb structural body
An object of the present invention is to provide a honeycomb structural body for use in a filter, which can be provided with a large amount of catalyst, can suppress an increase in pressure loss...
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7517510 |
Layered catalyst composite
A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. In...
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7514054 |
Flue gas purification device having an essentially horizontal through flow
A flue gas purification device includes a receptacle, which has an absorption zone, through which the supplied glue gas can flow in an essentially horizontal direction.
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7510696 |
Method and apparatus for the production of hydrogen-rich gas
A method and apparatus for the production of hydrogen-rich gas are provided. The method and apparatus prevent over-reduction of iron oxide-based shift catalyst by introducing an oxidative stream...
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7504260 |
Method and apparatus for controlling gas temperatures associated with pollution reduction processes
This invention relates to a method and apparatus for controlling the temperature of combustion gases entering a pollution reduction process when such a process is applied to a steam generator...
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7504081 |
Methods and apparatus to facilitate reducing mercury emissions
A method for reducing an amount of mercury in flue gas is provided. The method includes injecting a quantity of coal having a fineness of less than 70%<200 mesh and greater than or equal to...
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7501111 |
Increased capacity sulfur recovery plant and process for recovering elemental sulfur
Claus sulfur recovery plants that include one or more single-stage or multi-stage compact tubular Claus catalytic reactor-heat exchanger units are disclosed. In some instances, these new or...
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7501104 |
Apparatus and method for treating discharge gas
A discharge gas treatment apparatus and method which lower treatment cost and which attain efficient removal of mercury contained in a discharge gas are provided. The discharge gas treatment...
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7498009 |
Controlled spectrum ultraviolet radiation pollution control process
A method for reducing or substantially eliminating oxides of nitrogen from an effluent gas stream, that includes providing a source of ultraviolet radiation with a precise wavelength, adding...
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7494634 |
Reduction of nitrogen oxides using multiple split streams
Systems and methods of removing at least nitrogen oxides from an exhaust fluid generally include dividing a flow of an exhaust fluid comprising a concentration of nitric oxide into three types of...
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7494633 |
Gas abatement
Apparatus is described for treating an effluent fluid stream from a semiconductor manufacturing process tool. The apparatus comprises a combustion chamber, means for heating the combustion chamber,...
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7494628 |
Apparatus for abatement of by-products generated from deposition processes and cleaning of deposition chambers
Method and apparatus for abating F 2 from by-products generated during cleaning of a processing chamber. F 2 abatement is efficiently performed by directly injecting H 2 in line with a foreline...
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7491373 |
Flow-through honeycomb substrate and exhaust after treatment system and method
A system and method including a radially non-uniformly plugged flow-through honeycomb substrate positioned upstream of a wall-flow particulate filter for controlled thermal regeneration of the...
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