Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7427581 | Desulfurization process and novel bimetallic sorbent systems for same Novel sorbent systems for the desulfurization of cracked-gasoline and diesel fuels are provided which are comprised of a bimetallic promotor on a particulate support such as that formed of zinc oxide and an inorganic or organic carrier. Such bimetallic promotors are... | 09/23/2008 |
| 7323151 | Process for the selective removal of sulphur compounds from synthesis gas A process for the selective removal of sulphur compounds from synthesis gas being rich in carbon monoxide and containing hydrogen, carbon monoxide and containing hydrogen, carbon dioxide and steam comprising contacting the synthesis gas at a maximum contact temperat... | 01/29/2008 |
| 7268097 | Desulfurizing agent for hydrocarbon derived from petroleum, method for producing hydrogen for use in fuel cell and method for producing nickel-based desulfurizing agent A desulfurizing agent comprising a silica-alumina carrier having an Si/Al mole ratio of 10 or less and nickel carried thereon; a desulfurizing agent for hydrocarbons derived from petroleum which comprises a carrier and a metal component carried thereon and has a spe... | 09/11/2007 |
| 7056537 | Treatment of landfill gas The present invention relates to a method of abating hydrogen sulfide gas emitted by or generated in landfills. Certain embodiments of the present invention relate to contacting hydrogen sulfide gas with Fuller's earth or other carrier materials and metals such as s... | 06/06/2006 |
| 7021049 | Vehicle sulfur oxide trap and related method An automobile exhaust system includes a catalytic converter, a NOx trap, and a sulfur oxide trap. The sulfur oxide trap improves the efficiency of the NOx trap. Sulfur oxide has a deleterious effect on the performance of nitrogen oxide traps. The sulfur oxide trap c... | 04/04/2006 |
| 7008896 | Situ formed anionic clay-containing bodies The present invention is directed to a process for the preparation of crystalline anionic clay-containing bodies from sources comprising a trivalent metal source and a divalent metal source comprising the steps of: a) preparing a p... | 03/07/2006 |
| 6951635 | Zinc oxide-based sorbents and processes for preparing and using same Zinc oxide-based sorbents, and processes for preparing and using them are provided, wherein the sorbents are preferably used to remove one or more reduced sulfur species from gas streams. The sorbents contain an active zinc component, optionally in combination with ... | 10/04/2005 |
| 6828273 | High activity photo-catalyst When a polybasic acid salt containing at least one species selected from the group consisting of an alkaline earth metal, a transition metal, and Al is caused to be present on the surfaces of titanium dioxide fine particles, there are obtained photocatalytic particl... | 12/07/2004 |
| 6812189 | Attrition resistant, zinc titanate-containing, reduced sulfur sorbents The disclosure is directed to sorbent compositions for removing reduced sulfur species (e.g., H2S, COS and CS2) a feed stream. The sorbent is formed from a multi-phase composition including a zinc titanate phase and a zinc oxide-aluminate phase... | 11/02/2004 |
| 6773490 | Sulfur trioxide delivery system A process for reversible sorption of sulfur trioxide onto a sorbent comprising a) contacting from about 15% to 100% sulfur trioxide with the sorbent under anhydrous conditions at a temperature of from about 35° C. to about 150° C. thereby sorbing the sulfur trioxi... | 08/10/2004 |
| 6649555 | Reactivation of deactivated sorbents A deactivated sorbent composition is reactivated by contacting the deactivated sorbent with a reducing stream under activation conditions sufficient to reduce the amount of sulfates associated with the sorbent composition.... | 11/18/2003 |
| 6620763 | Process for the manufacture of an attrition resistant sorbent used for gas desulfurization This process produces a sorbent for use in desulfurization of coal gas. A zinc titanate compound and a metal oxide are mixed by milling the compounds in an aqueous medium, the resulting mixture is dried and then calcined, crushed, sleved and formed into p... | 09/16/2003 |
| 6610265 | Method and system for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant A fuel processing system is operative to remove substantially all of the sulfur present in a logistic fuel stock supply. The fuel stock can be gasoline, diesel fuel, or other like fuels which contain relatively high levels of organic sulfur compounds such... | 08/26/2003 |
| 6558533 | Process for sulfur removal from hydrocarbon liquids The present invention is directed to a method of desulfurization of a sulfur laden hydrocarbon liquids that comprises contacting the liquid with a sponge nickel metal alloy, removing the sulfur free liquid, regeneration of the alloy by contact with an aqu... | 05/06/2003 |
| 6541419 | Process for reduction of gaseous sulfur compounds A sulfur sorber for the reduction of gaseous sulfur compounds, e.g., H2 S, in a gas stream The sulfur sorber, e.g., zinc oxide, is present in the form of one or more layers on the surface of a monolith carrier, e.g., cordierite. The layers have... | 04/01/2003 |
| 6521200 | Catalyst and process for oxidation of sulphur dioxide A process for the recovery of sulphur trioxide, solutions of sulphuric acid, or organic derivatives thereof, using organic compounds and/or supercritical fluids, and catalyst. The process comprises the steps of passing a mixture of SO2 and an o... | 02/18/2003 |
| 6506356 | Catalyst for oxidizing hydrogen sulfide gas and method for recovering elemental sulfur using the same A catalyst for recovering elemental sulfur by the selective oxidation of hydrogen sulfide is represented by the following chemical formula: Va Tib Xc Of wherein, a is such a mole number that vanadium amounts to 5-40% by w... | 01/14/2003 |
| 6429170 | Sorbents for desulfurizing gasolines and diesel fuel Attrition resistant, sorbent compositions for the removal of elemental sulfur and sulfur compounds, such as hydrogen sulfide and organic sulfides, from cracked-gasoline and diesel fuels are prepared by the impregnation of a sorbent support comprising zinc... | 08/06/2002 |
| 6350422 | Sorbent compositions A process for removing hydrogen sulfide from a fluid stream by contacting a hydrogen sulfide-containing stream with a sorbent composition wherein said sorbent composition is produced by mixing at least one zinc component which is zinc oxide or a compound ... | 02/26/2002 |
| 6346190 | Desulfurization and novel sorbents for same Particulate sorbent compositions consisting essentially of zinc ferrite, nickel and an inorganic binder, wherein the zinc ferrite and nickel of reduced valence, are provided for the desulfurization of a feedstream of cracked-gasoline or diesel fuels in a ... | 02/12/2002 |
| 6299851 | Method for oxidizing hydrogen sulfide to elemental sulfur A method for selectively oxidizing hydrogen sulfide to elemental sulfur is disclosed. The method is performed at a temperature ranged from 50 to 400° C. and at a pressure ranged from 0.1 to 50 atm. The elemental sulfur can be effectively recovered from a... | 10/09/2001 |
| 6251359 | Method for oxidizing hydrogen sulfide to elemental sulfur A method for selectively oxidizing hydrogen sulfide to elemental sulfur is disclosed. The elemental sulfur can be effectively recovered from a gas mixture containing hydrogen sulfide in the presence of a multi-component catalyst. The multi-component catal... | 06/26/2001 |
| 6224840 | γ-Al2O3 sorbent impregnated with alkali salt and CuO The present invention relates to a γ-Al2 O3 sorbent impregnated with alkali salt and CuO, which has a superior SO2 sorption capacity and a high regeneration conversion rate. A γ-Al2 O3 sorbent of th... | 05/01/2001 |
| 6207127 | Catalyst and method 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 si... | 03/27/2001 |
| 6083471 | Method and catalyst for catalytically oxidizing a low concentration of H2 S in a gas to give sulphur A process for catalytically oxidizing the H2 S present at low concentration in a gas to sulphur wherein the gas together with a gas containing free oxygen in a quantity to provide and O2 to H2 S mole ratio ranging from 0.0... | 07/04/2000 |
| 5958830 | Sorbent compositions A process to make a sorbent composition said process comprising: (1) contacting (1.1) at least one zinc component, where said zinc component comprises zinc oxide, or a compound convertible to zinc oxide, (1.2) at least one silica component, where said silica compon... | 09/28/1999 |
| 5948398 | Deodorant comprising metal oxide-carrying activated carbon A metal oxide-carrying activated carbon having an oxidation catalytic activity comprises a treated activated carbon obtained by carbonizing a carbon material, activating the obtained carbon with an activating gas comprising carbon dioxide and water vapor,... | 09/07/1999 |
| 5866503 | Durable regenerable sorbent pellets for removal of hydrogen sulfide coal gas Pellets for removing hydrogen sulfide from a coal gasification stream at an elevated temperature are prepared in durable form, usable over repeated cycles of absorption and regeneration. The pellets include a material reactive with hydrogen sulfide, in pa... | 02/02/1999 |
| 5858912 | Non-aqueous liquids for moistening an oxide-bearing carrier in sulfur sweetening The present invention relates to the use of a non-aqueous liquid such as phenols, glycols, aromatic hydrocarbons, diesel fuel, kerosene, and mixtures thereof as a moistening agent in a packed bed process, wherein the packed bed contains a composition for ... | 01/12/1999 |
| 5714431 | Zinc titanate sorbents The present invention provides a zinc titanate sorbent material useful in desulfurization applications. The zinc titanate material is in the form of generally spherical particles of substantially uniform chemical distribution. The sorbent material is capa... | 02/03/1998 |
| 5703003 | Durable regenerable sorbent pellets for removal of hydrogen sulfide from coal gas Pellets for removing hydrogen sulfide from a coal gasification stream at an elevated temperature are prepared in durable form usable over repeated cycles of absorption and regeneration. The pellets include a material reactive with hydrogen sulfide, in par... | 12/30/1997 |
| 5689023 | Process for preparing styrene from ethylbenzene using a iron oxide catalyst A process for preparing styrene from ethylbenzene in the presence of an iron oxide catalyst is presented. The catalyst is prepared from extruded alpha-FeOOH iron oxide particles derived from scrap metal via dehydration of a yellow alpha-Fe(OOH) intermedia... | 11/18/1997 |
| 5654061 | Sulfide scavenging packaging materials A packaging material, which is capable of absorbing trace amounts of volatile odorous sulfur compounds particularly from food, is made from a structural support material which is preferably a polymer film, and a defined molecular sieve. The packaging mate... | 08/05/1997 |
| 5518980 | Stabilization of calcium-based slurries for sox reduction by in-furnance injection More reliable removal of sulfur oxides (SOx) from combustion effluents by in furnace injection is achieved by stabilizing slurries of calcium carbonate (limestone), calcium oxide (lime) and calcium hydroxide (hydrated lime) for extended periods... | 05/21/1996 |
| 5494880 | Durable zinc oxide-containing sorbents for coal gas desulfurization Durable zinc-oxide containing sorbent pellets for removing hydrogen sulfide from a gas stream at an elevated temperature are made up to contain titania as a diluent, high-surface-area silica gel, and a binder. These materials are mixed, moistened, and for... | 02/27/1996 |
| 5494869 | Process for regenerating nitrogen-treated carbonaceous chars used for hydrogen sulfide removal A process is provided for the restoration of hydrogen sulfide removal capacity in nitrogen-treated carbonaceous chars which have become exhausted for hydrogen sulfide capacity when used for the removal of hydrogen sulfide from gas streams containing oxyge... | 02/27/1996 |
| 5405812 | Method and arrangement for purifying a carbon-containing adsorption medium In a method for purifying a carbon-containing adsorption medium used for treating flue gases within a flue gas scrubbing process the adsorption medium is introduced into an adsorption medium reactor where the adsorption medium adsorbs pollutants from the ... | 04/11/1995 |
| 5401475 | Process and apparatus for generating elemental sulfur and re-usable metal oxide from spent metal sulfide sorbents A process and apparatus for generating elemental sulfur and re-usable metal oxide from spent metal-sulfur compound. Spent metal-sulfur compound is regenerated to re-usable metal oxide by moving a bed of spent metal-sulfur compound progressively through a ... | 03/28/1995 |
| 5270272 | Sulfur removal from molecular-sieve catalyst A sulfur-sensitive catalyst which has been deactivated by accumulating sulfur on the catalyst is desulfurized by contact with ammonia at high temperature. The technique is particularly effective for reforming catalysts containing a large-pore zeolite whic... | 12/14/1993 |
| 5154819 | Hydroprocessing using regenerated spent heavy hydrocarbon catalyst The present invention relates to a hydroprocessing process that employs a catalyst that has been regenerated by subjecting the catalyst to an initial partial decoking step, followed by impregnation with a Group IIA metal-containing component and then subj... | 10/13/1992 |
