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| Number | Title | Issue Date |
| 7361623 | Trimerisation and oligomerisation of olefins using a chromium based catalyst The invention provides a mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is nitrogen and at least two heteroatoms are not the same. The invention also provides a... | 04/22/2008 |
| 7361625 | Photocatalyst producing method, photocatalyst, and gas purifier A carrier supporting titania thereon is further caused to carry a metal compound thereon. This metal compound is hydrogen reduced in a heating atmosphere at a first treatment temperature, then oxidized in a heating atmosphere at a second treatment temperature not hi... | 04/22/2008 |
| 7351252 | Method and apparatus for photothermal treatment of tissue at depth The present invention provides method and apparatus for treating tissue in a region at depth by applying optical radiation thereto of a wavelength able to reach the depth of the region and of a selected relatively low power for a duration sufficient for the radiatio... | 04/01/2008 |
| 7338590 | Water-splitting using photocatalytic porphyrin-nanotube composite devices A method for generating hydrogen by photocatalytic decomposition of water using porphyrin nanotube composites. In some embodiments, both hydrogen and oxygen are generated by photocatalytic decomposition of water. ... | 03/04/2008 |
| 7325392 | Control system for catalytic processes The present invention provides methods and systems for controlling a catalytic process. The control system includes: an electroconductive support having a layer of a catalyst thereon; a first electrode in contact with said electroconductive support; a second electro... | 02/05/2008 |
| 7253119 | Passivated nanoparticles, method of fabrication thereof, and devices incorporating nanoparticles A plurality of semiconductor nanoparticles having an elementally passivated surface are provided. These nanoparticles are capable of being suspended in water without substantial agglomeration and substantial precipitation on container surfaces for at least 30 days. ... | 08/07/2007 |
| 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 |
| 7220391 | UV photochemical option for closed cycle decomposition of hydrogen sulfide Methods and systems for separating hydrogen and sulfur from hydrogen sulfide(H2S) gas. Hydrogen sulfide(H2S) gas is passed into a scrubber and filtration unit with polysulfide solution. Interaction frees elemental sulfur which is filtered, exce... | 05/22/2007 |
| 7125480 | Methods for affecting the ultra-fast photodissociation of water molecules A method for the ultra-fast photodissociation of water molecules into H2 and O2 gases is presented. Water vapor is initially produced and supplied to a photolysis bottle. Within the photolysis bottle, the water vapor is illuminated by a light s... | 10/24/2006 |
| 7074369 | Method and apparatus for decoupled thermo-catalytic pollution control A new method for design and scale-up of thermocatalytic processes is disclosed. The method is based on optimizing process energetics by decoupling of the process energetics from the DRE for target contaminants. The technique is applicable to high temperature thermoc... | 07/11/2006 |
| 7037484 | Plasma reactor for cracking ammonia and hydrogen-rich gases to hydrogen Processes and systems for generating hydrogen gas from resonant cavities are disclosed. A preferred version includes separating a resonant cavity into two compartments with a dielectric type diaphragm, injecting gases such as ammonia into one compartment and generat... | 05/02/2006 |
| 7033566 | Photocatalyst and use thereof for decomposing chemical substance A photocatalyst including a metal oxide semiconductor represented by the formula: In1−xMxAO4 wherein M represents a transition metal element, A represents an element belonging to the Group 5a of the Perio... | 04/25/2006 |
| 6964755 | Method for producing high activity photocatalyst, photoactivity catalyst, and method for treating hydrogen sulfide for recovering hydrogen gas under low energy by using high activity photocatalyst A high activity catalyst is obtained by oxidizing and modifying the surface of zinc sulfide by hydrogen peroxide. An oxidation treatment is carried out in basic aqueous solution. The high activity photocatalyst is added to the basic aqueous solution in which hydroge... | 11/15/2005 |
| 6863781 | Process for photocatalysis and two-electron mixed-valence complexes Embodiments for the invention include a process for the production of hydrogen comprising a protic solution, a photocatalyst capable of a two-electron reduction of hydrogen ions; and a coproduct trap. The embodiment includes exposing the reaction medium to radiation... | 03/08/2005 |
| 6783632 | Process for efficient microwave hydrogen production The present invention provides a potentially economically viable process for the efficient microwave catalysis production of hydrogen involving a modified steam-reforming reaction using light hydrocarbons or light alcohols as the basic reactant with supplementary ox... | 08/31/2004 |
| 6638413 | Methods and apparatus for electrolysis of water A method and apparatus are provided for electrolyzing water for enhanced production of oxygen, hydrogen and heat by the steps of (i) providing an electrochemical cell comprising an isotopic hydrogen storage cathode, an electrically conductive anode and an... | 10/28/2003 |
| 6620395 | Treatment of phospho gypsum A process is provided for recovering phosphoric acid from phospho gypsum produced as a by-product in a phosphoric acid production process and having water soluble P2 O5 bound in the crystal lattice thereof. The process includes a) fo... | 09/16/2003 |
| 6592723 | Process for efficient microwave hydrogen production The present invention provides a potentially economically viable process for the efficient microwave catalysis production of hydrogen involving a modified steam-reforming reaction using light hydrocarbons or light alcohols as the basic reactant with poten... | 07/15/2003 |
| 6468498 | Composite metal material, preparation thereof and photocatalytic process using same A composite metal material of formula (I) are stable and not deteriorated for a long time and have excellent activities in photolyzing water with visible light: x(A)y(B)z(C)-p(P)n(N) (I) wherein, (A) is Pb(Mg1/3 Nb2/3)O3 or Pb... | 10/22/2002 |
| 6447650 | Manufacturing method of CdS photocatalyst for hydrogen production and method for producing hydrogen by use of the same A method for preparing a CdS photocatalyst represented by general formula (I): m(a)/Cd[M(b)]S, comprising the steps of: dissolving Cd-containing and M-containing compounds in water in such an amount that the mol % of M ranges from 0.001 to. 20.00; adding ... | 09/10/2002 |
| 6361660 | Photoelectrochemical device containing a quantum confined group IV semiconductor nanoparticle A process for reacting a molecule using light as an energy source is described which comprises exposing the molecule to a catalyst material, the catalyst material in contact with an illuminated, quantum confined Group IV semiconductor domain of silicon or... | 03/26/2002 |
| 6300274 | CdS photocatalyst for hydrogen production, preparation therefor and method for producing hydrogen by use of the same The present invention relates to a novel CdS photocatalyst for producing hydrogen from water by photoreaction and preparation therefor, and method for producing hydrogen by using of the CdS photocatalyst. The CdS photocatalyst is characterized by the foll... | 10/09/2001 |
| 6297190 | ZnS photocatalyst, preparation therefor and method for producing hydrogen by use of the same The present invention relates to a novel photocatalyst, to preparing the photocatalyst and to a method for producing hydrogen in the presence of the photocatalyst. The novel photocatalyst of this present invention is characterized by the following formula... | 10/02/2001 |
| 6248218 | Closed cycle photocatalytic process for decomposition of hydrogen sulfide to its constituent elements A method and system for separating hydrogen and sulfur from hydrogen sulfide(H2 S) gas being produced from oil and gas waste streams. The hydrogen sulfide(H2 S) gas is first passed into a scrubber and filtration unit where it encount... | 06/19/2001 |
| 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 |
| 6063258 | Production of hydrogen from water using photocatalyst-electrolysis hybrid system A process for the production of a hydrogen gas from water, wherein comprising an aqueous solution containing ferric ions is irradiated with a light while maintaining the aqueous solution in contact with a photocatalyst to convert the ferric ions into ferr... | 05/16/2000 |
| 6017425 | Photocatalyst, preparation therefor and method for producing hydrogen using the same The present invention relates to a photocatalyst for producing hydrogen, harmless to the environment and by which a large quantity of hydrogen is efficiently produced at low temperatures without using any organic promoter, represented by the following for... | 01/25/2000 |
| 6007742 | Electrically assisted partial oxidation of light hydrocarbons by oxygen A process and device for electrically assisted partial oxidation of light hydrocarbons by oxygen. The purpose of the process and device is to produce gases rich in CO and H2 that may also have high contents of C2 H4 and C | 12/28/1999 |
| 5865960 | Photocatalyst, method for preparing the same, and production of hydrogen using the same A photocatalyst for the preparation of hydrogen consisting of a catalytically active ingredient, cesium (Cs), impregnated in a support, K4 Nb6 O17, represented by Formula I as follows: Cs (a) /K4 Nb6 O | 02/02/1999 |
| 5843395 | Process for hydrogen production from hydrogen sulfide dissociation A process using high-temperature thermal dissociation to recover hydrogen and salable sulfur from industrial waste streams containing hydrogen sulfide (H2 S) is disclosed. Thermal dissociation occurs in a thermoelectric reactor at temperatures ... | 12/01/1998 |
| 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 |
| 5698830 | Process for the preparation of alkanesulphonic acids The invention relates to the preparation of alkanesulphonic acids by photo-oxidation of dialkyl disulphides. The procedure is carried out in solution in an alcohol using a light source irradiating between 200 and 320 nm.... | 12/16/1997 |
| 5650051 | Hydrogen generating method using gamma rays Gamma rays are applied to a suspension which includes water and a catalyst having an element of platinum group metal carried on a semiconductor, thereby decomposing the water so as to produce hydrogen. The energy of gamma rays emitted from a nuclear react... | 07/22/1997 |
| 5620570 | Method of manufacturing hydrous oil A method of and apparatus for manufacturing hydrous oil are provided. A plurality of frequency and low voltage and current. A plurality of low frequency and low voltage and current signals are applied to a water supply pipe system and a low frequency and ... | 04/15/1997 |
| 5527985 | Process for recycling waste sulfuric acid A process for recycling waste sulfuric acid by decomposing organic contaminants by use of light energy, comprising exposing a waste sulfuric acid containing contaminants to a focused radiation emission having an irradiation intensity within the range of f... | 06/18/1996 |
| 5411645 | Hydrogen assisted reduced oxide soldering system A system is provided for regenerating reducing agents used in ancillary chemical or electrochemical processes such as restoring solderability of electronic components to be soldered in a fluxless soldering process. The system includes a cathode, an anode,... | 05/02/1995 |
| 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 |
| 5320726 | Method of supplying hydrous fuel In a method of supplying hydrous fuel in which water mixed with fuel is positively burned to thereby remarkably economize the fuel consumption. Oil and water which are supplied from an oil tank and a water tank by way of an oil supply pipe and a water sup... | 06/14/1994 |
| 5277773 | Conversion of hydrocarbons using microwave radiation C1+ hydrocarbons can be effectively converted to primarily unsaturated hydrocarbon and hydrogen by subjecting the C1+ hydrocarbon to microwave radiation in the presence of water and at least one plasma initiator that is capable of i... | 01/11/1994 |
| 5266175 | Conversion of methane, carbon dioxide and water using microwave radiation A mixture of methane, water and carbon dioxide can be effectively converted to carbon monoxide and hydrogen by subjecting the mixture to microwave radiation in the presence of at least one plasma initiator that is capable of initiating an electric dischar... | 11/30/1993 |
