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| Number | Title | Issue Date |
| 7815792 | Selective naphtha desulfurization process and catalyst A process and catalyst for the selective hydrodesulfurization of a naphtha containing olefins. The process produces a naphtha stream having a reduced concentration of sulfur while maintaining the maximum concentration of olefins. ... | 10/19/2010 |
| 7763164 | Gasoline sulfur reduction in FCCU cracking This invention focuses on the specialized catalyst and/or additive for lower FCCU gasoline and diesel blendstock component sulfur content. This invention utilizes a specified ratio of the transition metal oxides of cobalt and molybdenum to accomplish gasoline and di... | 07/27/2010 |
| 7416655 | Selective adsorbent material and its use An adsorbent composition comprising a nanostructured titanium oxide material of the formula TiO2-, where 0≦×≦1 with nanotubular and/or nanofibrilar morphology, high oxygen deficiency, having an orthorhombic JT crystalline phase described by at least ... | 08/26/2008 |
| 7374666 | Oxidative desulfurization of sulfur-containing hydrocarbons A method for desulfurizing a hydrocarbon stream (10) containing heterocyclic sulfur compounds, which process comprises contacting the heterocyclic sulfur compounds in the gas phase (60) in the presence of oxygen (70) with a supported metal oxide... | 05/20/2008 |
| 7309416 | Methods and compositions for desulfurization of hydrocarbon fuels Sulfur is removed from a hydrocarbon fuel via contact with a desulfurization agent; the desulfurization agent is then regenerated (wherein sulfur is released) by exposing it to oxygen. The sulfur removal and regeneration processes each can be carried out at relative... | 12/18/2007 |
| 7306714 | Process for hydrodesulphurizing cuts containing sulphur containing compounds and olefins in the presence of a supported catalyst comprising group VIII and VIB elements A process for hydrodesulphurizing gasoline cuts is carried out in the presence of a catalyst comprising at least one group VIII element, at least one group VIB element, and a support with a specific surface area of less than about 200 m2/g, wherein the de... | 12/11/2007 |
| 7297253 | Process for producing hydroperoxides A process for the autocatalytic production of organic hydroperoxides and ultra low sulfur diesel boiling range hydrocarbons is disclosed. The organic hydroperoxides react with sulfur compounds to produce sulfones, and the sulfones can be removed from the diesel boil... | 11/20/2007 |
| 7220704 | Desulfurization and novel compositions for same A composition comprising a promoter and a metal oxide selected from the group consisting of a gallium oxide, an indium oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods... | 05/22/2007 |
| 7201839 | Desulfurization and novel compositions for same A composition comprising a metal oxide, a silica-containing material, a gallium-containing material, an aluminum-containing material, and a promoter, wherein at least a portion of the promoter is present as a reduced-valence promoter and methods of preparing such co... | 04/10/2007 |
| 7182918 | Desulfurization process A hydrocarbon desulfurization system that circulates fluidizable solid particles through a fluidized bed reactor, a fluidized bed regenerator, and a fluidized bed reducer to thereby provide for substantially continuous desulfurization of a hydrocarbon-containing flu... | 02/27/2007 |
| 7144499 | Desulfurization process This invention is a method of purifying fuel streams containing organosulfur impurities. The fuel stream is oxidized with an organic hydroperoxide in the presence of an oxidation catalyst to form a sulfone product. The alcohol product of the organic hydroperoxide is... | 12/05/2006 |
| 7128829 | Removal of impurities from liquid hydrocarbon streams A novel process effective for the removal of organic sulfur compounds, organic nitrogen compounds and light olefins from liquid hydrocarbons is disclosed. The process more specifically addresses the removal of these contaminants from aromatic compounds including ben... | 10/31/2006 |
| 7074324 | Process to remove sulfur contaminants from hydrocarbon streams A process for removing sulfur compounds from hydrocarbon streams by contacting the hydrocarbon stream, especially a gasoline stream, with an adsorbent material. The adsorbent material is regenerated with hydrogen or a hydrogen/H2S mixture. ... | 07/11/2006 |
| 6974787 | Gasoline sulfur reduction in fluid catalytic cracking The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above... | 12/13/2005 |
| 6923904 | Process for effecting ultra-deep HDS of hydrocarbon feedstocks The invention pertains to a process for reducing the sulfur content of a hydrocarbon feedstock to a value of less than 200 ppm, preferably less than 50 ppm, which comprises subjecting a catalyst comprising a Group VIB metal component, a Group VIII metal component, a... | 08/02/2005 |
| 6923903 | Gasoline sulfur reduction in fluid catalytic cracking The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above... | 08/02/2005 |
| 6881325 | Preparation of components for transportation fuels Economical processes are disclosed for the production of components for refinery blending of transportation fuels by selective oxidation of feedstocks comprising a mixture of hydrocarbons, sulfur-containing and nitrogen-containing organic compounds. Oxidation feedst... | 04/19/2005 |
| 6835303 | Method for reducing the sulfur content of a sulfur-containing hydrocarbon stream The sulfur content of a liquid hydrocarbon stream is reduced under mild conditions by contracting a sulfur-containing liquid hydrocarbon stream with transition metal particles containing the transition metal in a zero oxidation state under conditions sufficient to p... | 12/28/2004 |
| 6746598 | Process and catalysts for upgrading of hydrocarbons boiling in the naphtha range The present invention relates to the use of a catalytic system comprising a metal of group VIII, a metal of group VI, a metal oxide as carrier and suitable quantities of a component selected from a zeolite of the FER type, phosphorous, and a mixture thereof, in upgr... | 06/08/2004 |
| 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 |
| 6635169 | Method for reducing gasoline sulfur in fluid catalytic cracking The sulfur content of liquid cracking products, especially the cracked gasoline, of a catalytic cracking process is reduced by the use of a catalyst having a product sulfur reduction component containing a metal component in an oxidation state greater tha... | 10/21/2003 |
| 6589418 | Method for selective cat naphtha hydrodesulfurization An improved catalyst activation process for olefinic naphtha hydrodesulfurization. This process maintains the sulfur removal activity of the catalyst while reducing the olefin saturation activity.... | 07/08/2003 |
| 6579444 | Removal of sulfur compounds from hydrocarbon feedstreams using cobalt containing adsorbents in the substantial absence of hydrogen A process for removing sulfur compounds from hydrocarbon feedstreams, particularly those boiling in the naphtha range, by contacting the feedstream with an adsorbent comprised of cobalt and one or more Group VI metals selected from molybdenum and tungsten... | 06/17/2003 |
| 6531053 | Desulfurization process and novel bimetallic sorbent systems for same Novel sorbent systems for the desulfurization of cracked-gasoline 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 forme... | 03/11/2003 |
| 6402939 | Oxidative desulfurization of fossil fuels with ultrasound Fossil fuels are combined with a hydroperoxide in an aqueous-organic medium and subjected to ultrasound, with the effect of oxidizing the sulfur compounds in the fuels to sulfones. Due to their high polarity, the sulfones thus formed are readily removed f... | 06/11/2002 |
| 6368495 | Removal of sulfur-containing compounds from liquid hydrocarbon streams A novel process effective for the removal of organic sulfur compounds from liquid hydrocarbons is disclosed. The process more specifically addresses the removal of thiophenes and thiophene derivatives from a number of petroleum fractions, including gasoli... | 04/09/2002 |
| 6332976 | Catalyst containing phosphorous and a process hydrotreatment of petroleum feeds using the catalyst The invention concerns an alumina based catalyst containing, expressed as the oxide content by weight, 2-10% by weight of cobalt oxide CoO, 10-30% by weight of molybdenum oxide MoO3 and 4-10% of phosphorous oxide P2 O5, wi... | 12/25/2001 |
| 6274031 | Transport desulfurization process utilizing a sulfur sorbent that is both fluidizable and circulatable and a method of making such sulfur sorbent A novel circulatable sorbent material suitable for use in a transport desulfurization system for removing sulfur from a fluid stream containing sulfur and the use thereof in such a transport desulfurization system. The transport desulfurization process ut... | 08/14/2001 |
| 6056871 | Transport desulfurization process utilizing a sulfur sorbent that is both fluidizable and circulatable and a method of making such sulfur sorbent A novel circulatable sorbent material suitable for use in a transport desulfurization system for removing sulfur from a fluid stream containing sulfur and the use thereof in such a transport desulfurization system. The transport desulfurization process ut... | 05/02/2000 |
| 5958224 | Process for deep desulfurization using combined hydrotreating-oxidation The instant invention is directed to a process for removing hard sulfurs from hydrocarbon streams by selectively oxidizing hard sulfurs in a hydrotreated stream, under oxidizing conditions in the presence of an effective amount of an oxidizing agent, wher... | 09/28/1999 |
| 5872073 | Reduced ternary molybdenum and tungsten sulfides and hydroprocessing catalysis therewith New amorphous molybdenum/tungsten sulfides with the general formula Mn+2x/n (L6 S8)Sx, where L is molybdenum or tungsten and M is a ternary metal, has been developed. Characterization of these amorpho... | 02/16/1999 |
| 5853570 | Process for desulfurizing catalytically cracked gasoline A catalytically cracked gasoline feedstock is desulfurized under reaction conditions of a hydrogen feed rate measured at the reactor inlet of from 1 to 5 mols per mol of the feedstock oil and of from 5 to 50 mols per mol of the olefin components contained... | 12/29/1998 |
| 5827421 | Hydroconversion process employing catalyst with specified pore size distribution and no added silica A process for hydrotreating a charge hydrocarbon feed containing components boiling above 1000° F. and sulfur, metals, and carbon residue, to provide product containing decreased levels of components having a boiling point greater than 1000° F., decreas... | 10/27/1998 |
| 5776331 | Process to remove sulfur using zinc containing sorbent subjected to steam treatment A sorbent composition is provided comprising: (a) a zinc component; (b) a colloidal oxide component; and (c) a metal oxide component. This sorbent composition can be subjected to a steaming treatment that improves its sulfur loading capability.... | 07/07/1998 |
| 5525211 | Selective hydrodesulfurization of naphtha using selectively poisoned hydroprocessing catalyst Naphtha is selectively hydrodesulfurized using selectively poisoned hydrotreating catalyst to remove sulfur while minimizing loss in octane level due to olefin saturation.... | 06/11/1996 |
| 5360536 | Removal of sulfur compounds from liquid organic feedstreams A process for removing sulfur containing compounds from various liquid organic feedstreams has been developed. The process involves contacting the feed stream with a metal oxide solid solution which adsorbs the sulfur containing compounds. Examples of the... | 11/01/1994 |
| 5288681 | Catalyst for the hydroconversion of asphaltene-containing hydrocarbonaceous charge stocks A catalyst prepared by the steps which comprise: (a) adding to an asphaltene-containing hydrocarbonaceous oil charge stock a metal compound, a heteropoly acid and water; (b) converting the metal compound and heteropoly acid within the charge stock by heat... | 02/22/1994 |
| 5286373 | Selective hydrodesulfurization of naphtha using deactivated hydrotreating catalyst Naphtha is selectively hydrodesulfurized using deactivated hydrotreating catalyst to remove sulfur while minimizing loss in octane level due to olefin saturation.... | 02/15/1994 |
| 5157201 | Process for adsorbing sulfur species from propylene/propane using regenerable adsorbent A method of removing sulfur components from a hydrocarbon stream which involves contacting a hydrocarbon stream including an initial amount of at least one sulfur species selected from the group consisting of mercaptans, organic sulfides, and disulfides w... | 10/20/1992 |
| 5055175 | Upgrading crude oil emulsions Heavy crude oil emulsions are converted to lighter essentially sulphur-free and nitrogen-free hydrocarbons by Group VI B or Group VIII B metal compounds or complexes along with carbon monoxide, hydrogen or mixtures of carbon monoxide and hydrogen, and bro... | 10/08/1991 |
