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| Number | Title | Issue Date |
| 7416715 | Method and apparatus for the production of gaseous ammonia from a urea solution A safe, economical and predictable process for producing ammonia from a urea solution, preferably where only a small amount of ammonia is required, (i.e. for SCR denitrification for small boilers, flue gas conditioning to enhance precipitator efficiency and/or allev... | 08/26/2008 |
| 7273595 | Method and apparatus for the production of gaseous ammonia from a urea solution A safe, economical and predictable process for producing ammonia from a urea solution, preferably where only a small amount of ammonia is required, (i.e. for SCR denitrification for small boilers, flue gas conditioning to enhance precipitator efficiency and/or allev... | 09/25/2007 |
| 7238261 | Photo-formed metal nanoparticles and aerogel materials comprising the same Transparent monolithic aerogels based on silica, the bioderived polymer chitosan, and coordinated ions are employed to serve as a three-dimensional scaffold decorated with metal ions such as Au, Pt and Pd ions. It has also been found that the metal aerogels, such as... | 07/03/2007 |
| 7160448 | Non-chemical water treatment method and apparatus employing ionized air purification technologies Contaminated water is disinfected by admixture of a highly reactive gas stream containing ions of oxygen and nitrogen, formed by exposure of air to short-wavelength ultraviolet radiation, and of chlorine, formed by electrolysis of a brine solution. Solids removal ca... | 01/09/2007 |
| 7094384 | Combined methane decomposition and ammonia formation cell An ammonia synthesis process and apparatus are provided which are energy efficient and minimize greenhouse-gas-emission during the processing of natural gas and air. In the process a stream of natural gas is divided into two streams, one of which is mixed with air a... | 08/22/2006 |
| 7067204 | Submerged plasma generator, method of generating plasma in liquid and method of decomposing toxic substance with plasma in liquid A method and apparatus for generating plasma in a liquid. The apparatus includes an ultrasonic wave generator for generating bubbles in the liquid, and an electromagnetic wave generator for continuously irradiating electromagnetic waves to the liquid from within the... | 06/27/2006 |
| 7037861 | Method and apparatus for oxidizing nitrides A method for oxidizing a nitride film is disclosed, which includes the steps of: providing a nitride film formed on an electrically conductive substrate; irradiating the nitride film with a light beam and getting close to the nitride film with a electrically conduct... | 05/02/2006 |
| 7033554 | Apparatus for producing water for use in manufacturing semiconductors Disclosed is a process of treating semiconductor substrates, including the production of pure water, a method of producing the pure water for semiconductor fabrication, and a water-producing apparatus. Ammonia is catalytically oxidized in a catalytic conversion reac... | 04/25/2006 |
| 6740245 | Non-chemical water treatment method and apparatus employing ionized air purification technologies Contaminated water is disinfected by admixture of a highly reactive gas stream containing ions of oxygen and nitrogen, formed by exposure of air to short-wavelength ultraviolet radiation, and of chlorine, formed by electrolysis of a brine solution. Solids removal ca... | 05/25/2004 |
| 6517794 | Method for removing nitrogen oxides from an oxygen-containing flue gas stream A method for removing nitrogen oxides from a lean flue gas. The method is carried out by: a) treating the flue gas in an electrical gas discharge, b) passing the thus treated flue gas over a basic storage material to store the nitrogen oxides in the form of ni... | 02/11/2003 |
| 6471932 | Process for the plasma-catalytic production of ammonia A process is disclosed for the plasma-catalytic production of ammonia. A gas stream containing nitrogen and water vapor is passed through an electrical gas discharge in the discharge space of which is arranged a catalyst which contains a catalytically act... | 10/29/2002 |
| 6355084 | Method for producing a fertilizer from gas containing sulfur oxides The present invention relates to a method and an apparatus for producing a fertilizer by injecting ammonia into and applying electron beam to gas containing sulfur oxides. Gas containing sulfur oxides is cooled by a heat exchanger (2) and a cooling tower ... | 03/12/2002 |
| 6315972 | Gas phase catalyzed reactions This invention relates to improvements in processes and catalysts for elevated temperature, gas phase, catalyzed reactions in general; it is particularly illustrated by reference to the manufacture of hydrogen cyanide.... | 11/13/2001 |
| 6287531 | Preparation of hydrogen cyanide Hydrogen cyanide is produced by reacting ammonia and a hydrocarbon gas in the presence of a platinum-group-metal catalyst while the catalyst is heated by induction heating at a frequency of 0.5 to 30 MHz.... | 09/11/2001 |
| 6222089 | Process for destroying chlorinated aromatic compounds A process for destroying aromatic compounds in an exhaust gas containing also sulfur dioxide, nitrogen oxides and dust, first the dust is removed at a temperature of between room temperature and 150° C. to a residual quantity of not more than 50 mg/m | 04/24/2001 |
| 6190508 | Method of oxidizing nitride material enhanced by illumination with UV light at room temperature A method of forming oxide from nitride, in which the oxidation is enhanced by illuminating the nitride material with UV light. This method produces a rapid growth of oxide and allows for the monitoring of the oxide thickness in situ. The method comprises ... | 02/20/2001 |
| 6179968 | Method and apparatus for treating gas by irradiation of electron beam A method and apparatus for treating gas by irradiation with an electron beam. Flue gas discharged from a fuel combustion facility is treated with an electron beam to remove sulfur oxides and/or nitrogen oxides. Ammonia is added to the flue gas and the mix... | 01/30/2001 |
| 6117403 | Barrier discharge conversion of Hg, SO2 and NOx A process and apparatus for reducing particulate, nitrogen oxides ("NOx"), sulfur dioxide ("SO2 "), and mercury ("Hg") emissions from the combustion exhaust of fossil fuel fired plants while producing an end product that is commercially useful,... | 09/12/2000 |
| 6106675 | Method of microwave bond cleavage of a hydrocarbon compound in a liquid phase The method of the present invention is a microwave bond cleavage of a first hydrocarbon compound, the first hydrocarbon compound in a liquid phase and substantially non-aqueous, to a second compound having a shorter carbon chain than the first hydrocarbon... | 08/22/2000 |
| 6093288 | Desulfurizing method and apparatus by irradiation of electron beam A high temperature gas containing sulfur oxides is desulfurized by converting sulfur oxides to ammonium compounds by the injection of ammonia and irradiation with an electron beam. The high temperature gas containing the sulfur oxides is cooled by contact... | 07/25/2000 |
| 5834722 | Method and apparatus for treating waste gases by exposure to electron beams The improved method for treating waste gases by exposure to electron beams which comprises adding ammonia to a waste gas containing sulfur oxide (SOx) and/or nitrogen oxides (NOx) and thereafter exposing the gas to an electron beam s... | 11/10/1998 |
| 5807526 | Device for removal of SO2 and NOx from flue gases by high frequency discharge by Tesla coil or other high voltage and high frequency generator A device for removal of SO2 and NOx from flue gas by high frequency discharge has a chamber having a first inlet opening for entry of flue gas into the chamber and an outlet opening for flue gas to exit from the chamber after removal... | 09/15/1998 |
| 5767470 | Process and device for removal of combustion pollutants under high oxygen conditions The subject invention is a process and device to effectively remove combustion pollutants under oxygen conditions greater than six volume percent. Microwave enhancement of oxidation/reduction catalysis is selectively employed in a multiple step process. H... | 06/16/1998 |
| 5723838 | Method for treating incinerator effluent gas Electron beam irradiation step is followed by alkaline material atomizing step in the present invention. Since irradiation step and alkaline material atomizing step is conducted in different time and in different reactors, the construction cost of X-ray s... | 03/03/1998 |
| 5712461 | Molecular sieve--photoactive semiconductor membranes and reactions employing the membranes Methods for forming membranes of semiconductive material incorporating molecular sieve material therein can involve sol gel techniques and suction techniques. The semiconductors, such as metal oxides, sulfides or carbides have photoactivity and are useful... | 01/27/1998 |
| 5702572 | Method for treating exhaust gases and foul water The improved method of treating an exhaust gas from a combustion apparatus comprises adding ammonia to the exhaust gas and then irradiating it with an electron beam, characterized in that part or all of said ammonia is supplied as a separated portion of a... | 12/30/1997 |
| 5695616 | Electron beam flue gas scrubbing treatment A flue-gas scrubbing arrangement removes sulfur oxides and nitrogen oxides from stack gases at low energy costs and converts these into non-noxious ammonium sulfate-nitrate, which is utilizable as an agricultural fertilizer. The flue gases, cleaned of fly... | 12/09/1997 |
| 5693195 | Method of irradiation with electron beams A method by which irradiation treatment of an exhaust gas with electron beams can be performed in a more space- and energy efficient manner. The method in which an exhaust gas containing nitrogen oxides (NOx) is irradiated with electron beams so as to for... | 12/02/1997 |
| 5520851 | Iridium oxide film for electrochromic device A method of depositing a nitrogen-containing electrochromic iridium oxide film by sputtering iridium in an atmosphere comprising oxygen and nitrogen is disclosed for use in producing a transparent electrochromic article. The article includes electroconduc... | 05/28/1996 |
| 5419819 | Self-regenerating column chromatography The present invention provides a process for treating both cations and anions by using a self-regenerating, multi-ionic exchange resin column system which requires no separate regeneration steps. The process involves alternating ion-exchange chromatograph... | 05/30/1995 |
| 5417823 | Metal-nitrides prepared by photolytic/pyrolytic decomposition of metal-amides This invention is directed to a method for preparing materials comprising metal nitrides by the photolytic/pyrolytic decomposition of metal amides. The metal amides may be zirconium and/or niobium amides, which may additionally contain titanium amides.... | 05/23/1995 |
| 5397444 | Process for removal of SO2 and NOx from combustion flue gases and an apparatus used therefor Removal of SO2 and NOx from combustion flue gases is effected to be subjected to irradiation by an electron beam and to the action of microwaves applied in the form of a continuous and/or pulsed stream. The stream of flue gases irrad... | 03/14/1995 |
| 5393393 | Preparation of hydrogen cyanide Hydrogen cyanide is produced by reacting ammonia or urea and elemental carbon or a hydrocarbon while irradiating them with microwave energy.... | 02/28/1995 |
| 5330733 | Method for removing pollutants from a combustion gas A combustion gas is cooled a first time to about 110° C. in a first cooling chamber (3), up to 90% of the ashes is removed in a first precipitator (9) then the gas is cooled again in a second cooling chamber (10), to about 80° C.; in a reaction chamber ... | 07/19/1994 |
| 5324492 | Method of reducing nitrogen oxide content in gas A method of reducing a nitrogen oxide content in gas is disclosed. In this method, subject gas containing nitrogen oxide is supplied to a gas passage of a surface discharger to decompose the nitrogen oxide content in the gas into nitrogen gas.... | 06/28/1994 |
| 5279870 | Cured epoxy resins exhibiting nonlinear optical properties The present invention is directed to a novel epoxy polymeric composition resulting from reacting (A) at least one compound containing an average of more than one epoxide group per molecule with (B) at least one curing agent for component (A). At least a p... | 01/18/1994 |
| 5192618 | Corrosion protection by FeMn by ion implantation The present invention relates to the improvement of corrosion wear resistance of iron-manganese (FeMn) film by ion implantation and subsequent annealing without substantially affecting the magnetic properties of the magnetic material. A highly corrosive a... | 03/09/1993 |
| 5108565 | Method for removing harmful gas from refuse combustion exhaust gas A method of removing harmful gas from a refuse combustion exhaust gas. The refuse combustion exhaust gas, containing a harmful gas such as hydrogen chloride, is supplied to a reactor. Other steps include atomizing an alkaline material within the reactor, ... | 04/28/1992 |
| 5041271 | Method of treating waste gas by irradiation with electron beam A waste gas containing sulfur oxides (SOx) and/or nitrogen oxides (NOx) is purified by leading the waste gas to a radiation irradiation zone, adding ammonia (NH3) to the waste gas before, during or after the irradiation, c... | 08/20/1991 |
| 5015443 | Method of and apparatus for treating waste gas by irradiation with electron beam A method of and apparatus for treating waste gas by irradiation with electron beams wherein an electron beam irradiation chamber for irradiation with electron beams from an electron beam accelerator is provided in the vicinity of a main dust for waste gas... | 05/14/1991 |
