Quotables
"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7569199 | Method to remove sulfur or sulfur-containing species from a source High surface area iron oxides that can be ferroxane-derived iron oxides are described, as well as methods of using the same to remove at least a portion of one or more sulfur-containing species from a gas stream or liquid stream. ... | 08/04/2009 |
| 7425231 | Feed gas contaminant removal in ion transport membrane systems Method for gas purification comprising (a) obtaining a feed gas stream containing one or more contaminants selected from the group consisting of volatile metal oxy-hydroxides, volatile metal oxides, and volatile silicon hydroxide; (b) contacting the feed gas stream ... | 09/16/2008 |
| 7357905 | Process for eliminating sulfur-containing compounds by direct oxidation The invention relates to a process for direct oxidation into sulfur and/or into sulfate of sulfur-containing compounds that are contained in an amount that is less than 10% by volume in a gas, in which said gas is brought into contact with an oxidation catalyst that... | 04/15/2008 |
| 7267811 | Fuel reformer catalyst and absorbent materials Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials, and methods for using such materials for the conversion of carbon-based fuels to a H2-rich product gas. The materials can be... | 09/11/2007 |
| 7264788 | Fuel reformer catalyst and absorbent materials Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials and methods for using the materials. The materials can be fabricated by spray processing. The use of the materials in AER can produce a ... | 09/04/2007 |
| 7189381 | Method of scrubbing lower mass sulfides with a sulfide scrubbing medium capable of regeneration A method of scrubbing lower mass sulfides with a sulfide scrubbing medium capable of regeneration. The sequential order of gas flow through three vessels is altered. A first of the three vessels is maintained in a scrubbing mode, scrubbing to breakthrough sulphur fr... | 03/13/2007 |
| 7156894 | Method for recovering metal values from concentrates of sulfide minerals A method of recovering precious metal values from refractory sulfide ores is provided. The method includes the steps of separating clays and fines from a crushed refractory sulfide ore, forming a heap from the refractory sulfide ore, producing a concentrate of refra... | 01/02/2007 |
| 7147783 | Method for reducing hydrogen sulfide emissions from wastewater A cost-effective method for reducing the dissolved sulfide content in a wastewater stream and thereby hydrogen sulfide emissions therefrom involving the steps of adding a transition metal salt to the wastewater stream at the upper reaches of a wastewater collection ... | 12/12/2006 |
| 7144555 | Method and apparatus for hydrogen sulphide removal A method for removing hydrogen sulphide and carbon dioxide from a gas stream includes the step of contacting the gas stream with aqueous and gaseous ammonia in a closed vessel in the presence of solid iron. An apparatus for removing hydrogen sulphide and carbon diox... | 12/05/2006 |
| 7108842 | Process for the catalytic partial oxidation of HS using staged addition of oxygen A multistage oxygen-added catalytic partial oxidation process and apparatus for converting H2S in an acid gas stream to elemental sulfur and water are disclosed. Each staged addition of oxygen or air at the top of the catalyst bed and at points along the ... | 09/19/2006 |
| 7060233 | Process for the simultaneous removal of sulfur and mercury A process for removing hydrogen sulfide, other sulfur-containing compounds and/or sulfur and mercury from a gas stream contaminated with mercury, hydrogen sulfide or both. The method comprises the step of selective oxidation of hydrogen sulfide (H2S) in a... | 06/13/2006 |
| 6998099 | Method for desulphurizing acid gases using catalysts that are insensitive to oxidation and contain aminocarboxylate A process is described for the catalytic removal of H2S gas from a sour gas stream in the presence of a chelate ligand of the formula (I) where: X is hydrogen, an alk... | 02/14/2006 |
| 6946111 | Short contact time catalytic partial oxidation process for recovering sulfur from an H2S containing gas stream A process for removing sulfur from a H2S-containing gas stream is disclosed. A preferred embodiment of the process comprises incorporating a short contact time catalytic partial oxidation reactor, a cooling zone, and a condenser into a conventional refine... | 09/20/2005 |
| 6919296 | Catalyst for the selective oxidation of sulfur compounds to elemental sulfur The invention provides a catalyst, a method for making the catalyst and a method for using the catalyst to promote the selective oxidation of hydrogen sulfide into elemental sulfur. The catalyst may be prepared by contacting a catalyst support, such as silica, with ... | 07/19/2005 |
| 6905592 | Process for the desulphurization of feed streams The invention relates to: a process for the desulphurization of feed streams comprising: supplying a hot process stream to a lead catalyst bed (8) comprising a first sulphur-removing catalyst and a second sulphur-removing catalyst under conditions whereby sul... | 06/14/2005 |
| 6726852 | Method of manufacturing synthesis gas A method of manufacturing a synthesis gas containing hydrogen and carbon monoxide comprises steps of removing only hydrogen sulfide from a natural gas containing hydrogen sulfide and carbon dioxide by permitting the natural gas to pass through a hydrogen sulfide-rem... | 04/27/2004 |
| 6695985 | Electromagnetic wave suppressor sheet An electromagnetic wave suppressor sheet formed into a sheet-like shape out of a material made of synthetic resin in which powder of conjugated magnetic particles surface-treated with an insulating inorganic material has been dispersed.... | 02/24/2004 |
| 6682711 | Protection of Fischer-Tropsch catalysts from traces of sulfur Methods for removing sulfur from syngas in a Fischer-Tropsch reactor, and reactors including means for removing sulfur from syngas are disclosed. Sulfur-reactive metals can be used in the Fischer-Tropsch unit to sequester the sulfur. For example, the Fisc... | 01/27/2004 |
| 6660238 | Preparation and purification of diborane BF3 CO2 or both are removed from a mixture containing these gases with B2 H6 by contacting the mixture with an inorganic hydroxide such as LiOH. B2 H6 is synthesized by contacting BF3... | 12/09/2003 |
| 6500237 | Removing hydrogen sulfide from a gaseous mixture using ferric ions bonded to calcined diatomite A process for removing hydrogen sulfide from a gas stream wherein the filtering media consists essentially of calcined diatomite and between 5% and 30% by weight of ferric ions bonded to the calcined diatomite. This process is particularly efficient due t... | 12/31/2002 |
| 6425976 | Method for black liquor gasification in recovery boilers The invention refers to a method for black liquor gasification in recovery boilers, of the type having a lower portion, referred to as a lower furnace and an upper portion, referred to as an upper furnace, black liquor sprayers for introduction of black l... | 07/30/2002 |
| 6251348 | Process for increasing the reactivity of sulfur compound scavenging agents A process is provided for removing sulfur compounds, such as hydrogen sulfide, sulfur oxides and thiols, out of fluids, such as natural gas or natural gas liquids, by contacting the fluid with a physical mixture of iron oxide, zinc oxide or mixtures there... | 06/26/2001 |
| 6214304 | Method of removing mercury from a mercury-containing flue gas A method of removing mercury from a mercury-containing flue gas, especially flue gas from a refuse incinerator, is provided. The mercury-containing flue gas may also contain dust, further heavy metals, and further gaseous noxious gas components. The mercu... | 04/10/2001 |
| 6126911 | Metal oxide product suitable for use in dehydrated gas The present invention relates to the use of metal oxide particles held on carrier particles and moistened with a hygroscopic moistening agent, preferably glycol, with the moistened metal oxide particles used in a system designed to remove sulfur from dehy... | 10/03/2000 |
| 5976476 | Catalytic composition comprising a mixture of cerium oxide with manganese, iron or praseodymium oxide, process for its preparation and its use in automobile afterburning catalysis The invention provides a catalytic composition which is based on a cerium oxide and on at least one other oxide chosen from iron, manganese and praseodymium oxides, which controls H2 S emissions in the catalysis of treatment of automobile exhau... | 11/02/1999 |
| 5948382 | Selective oxidation of hydrogen sulfide in the presence of mixed-oxide catalyst containing iron, molybdenum and antimony The present invention discloses a method of selectively oxidizing hydrogen sulfide to elemental sulfur, in which a H2 S-containing gas mixture contacts with an oxygen-containing gas at about 50-400° C. in the presence of an mixed-oxide catalys... | 09/07/1999 |
| 5910466 | Catalyst for purifying exhaust gas The present invention relates to a catalyst for purifying an exhaust gas, and in particular provides a catalyst for purifying an exhaust gas using a complex oxide, which is not deteriorated in its purifying performance even in a lean atmosphere containing... | 06/08/1999 |
| 5792438 | Process and composition for increasing the reactivity of sulfur scavenging iron oxides In ridding fluids, including hydrocarbon fluids, both gaseous and liquid, of sulfur compounds including hydrogen sulfide, oxides of sulfur, and thiols, the present invention uses a small quantity of an activator, generally a noble metal oxide, preferable ... | 08/11/1998 |
| 5756852 | Co-oxidation of H2 S and saturated hydrocarbons Process for the catalytic oxidation of a saturated hydrocarbon to obtain a ketone which involves carrying out the oxidation simultaneously with the oxidation of H2 S to form elemental sulfur and the ketone.... | 05/26/1998 |
| 5700440 | Selective oxidation of hydrogen sulfide in the presence of iron-based catalysts The present invention discloses a method of selectively oxidizing hydrogen sulfide to elemental sulfur, in which a H2 S-containing gas mixture contacts with an oxygen-containing gas at 50°-500° C. in the presence of an iron-based catalyst. Th... | 12/23/1997 |
| 5674463 | Process for the purification of carbon dioxide Sulfur compounds are removed from gaseous carbon dioxide by contacting the carbon dioxide with water vapor in the presence of a carbonyl sulfide hydrolysis catalyst, thereby converting carbonyl sulfide in the gas stream to hydrogen sulfide, contacting the... | 10/07/1997 |
| 5603913 | Catalysts and process for selective oxidation of hydrogen sulfide to elemental sulfur A solid, porous catalyst for the selective oxidation of hydrogen sulfide to sulfur has the atomic proportions covered by the formula FeA MgB ZnC CrD wherein A has a value of 0.5 to 10, B has a value of 0.1 to 1,... | 02/18/1997 |
| 5556605 | Method of seperating sulphur compounds A method of separating sulphur compounds out of a gas containing carbon dioxide and hydrogen sulphide, in a gas washing system, said gas being obtained by gasification of spent cellulose liquor. According to the invention the gas washing system has a gas-... | 09/17/1996 |
| 5540896 | System and method for cleaning hot fuel gas A hot gas cleanup system for removing particulates, alkali and sulfur from fuel gas produced by the gasification of coal in a gasifier, especially in an integrated gas turbine gasification power plant. A calcium based sulfur sorbent and an alkali sorbent ... | 07/30/1996 |
| 5478541 | Separately removing mercaptans and hydrogen sulfide from gas streams The present invention provides a method for separately removing mercaptans and hydrogen sulfide from a hydrocarbon gas stream by passing the gas through a bed which includes iron oxide which catalyzes the formation of disulfides and trisulfides from merca... | 12/26/1995 |
| 5464604 | Method for purifying high-temperature reducing gas Disclosed are, in a method for purifying a high-temperature reducing gas in which sulfur compounds present in a high-temperature reducing gas are absorbed and removed by an absorbent according to a dry method, a method for purifying a high-temperature red... | 11/07/1995 |
| 5427752 | Process for purifying high-temperature reducing gases A process for purifying high-temperature reducing gases containing sulfureous contaminants including hydrogen sulfide and carbonyl sulfide with an absorbent, said process characterized in that at least three reactor towers which are filled with an absorbe... | 06/27/1995 |
| 5417946 | Process for removing total reduced sulfur compounds from gaseous stream A process for removing Total Reduced Sulfur compounds from a gaseous stream such as those containing natural gas, industrial gas, and digester gas by oxidation with a fine flocculent acidic catalyst slurry which is regenerable during the process by pH adj... | 05/23/1995 |
| 5411721 | Process for the rejection of CO2 from natural gas A process for the rejection of carbon dioxide from a natural gas feedstream comprising a gas permeable membrane and a multiple bed pressure swing adsorption system to produce a fixed gas product having a desired concentration of carbon dioxide. The permea... | 05/02/1995 |
| 5348921 | Method for reducing sulfate formation during regeneration of hot-gas desulfurization sorbents The regeneration of sulfur sorbents having sulfate forming tendencies and used for desulfurizing hot product gas streams such as provided by coal gasification is provided by employing a two-stage regeneration method. Air containing a sub-stoichiometric qu... | 09/20/1994 |
