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| Number | Title | Issue Date |
| 8128809 | Ring opening process A single stage process for desulfurization and ring opening of a sulphur containing hydrocarbon feedstock comprising: contacting said feedstock with hydrogen and a catalyst at a pressure of less than 100 bars wherein said catalyst ... | 03/06/2012 |
| 8128810 | Process for using catalyst with nanometer crystallites in slurry hydrocracking A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce ligh... | 03/06/2012 |
| 8123933 | Process for using iron oxide and alumina catalyst for slurry hydrocracking A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce ligh... | 02/28/2012 |
| 7959795 | Deep hydrodesulfurization of hydrocarbon feedstreams The distillate catalytic hydrodesulfurization of hydrocarbon fuels wherein the optimum hydrogen treat gas rate to maximize desulfurization is determined and introduced into the reaction zone to maintain a controlled amount of hydrogen at the surface of the catalyst ... | 06/14/2011 |
| 7897037 | Catalyst and its use in desulphurisation A catalyst is provided comprising nickel in a reduced valence state on a carrier comprising zinc oxide and alumina, wherein the Zn:Ni atomic ratio is at least 12, and the catalyst particles are prepared by: mixing zinc oxide in the form of a powder and alumina or an... | 03/01/2011 |
| 7820037 | Desulfurizing agent manufacturing method and hydrocarbon desulfurization method A desulfurizing agent is produced by mixing a copper compound, a zinc compound and an ammonium compound with an aqueous solution of an alkali substance to prepare or precipitate followed by calcitrating the resulting precipitate to form a calcined precipitate into a... | 10/26/2010 |
| 7435335 | Production of low sulfur distillates A process for hydroprocessing a distillate stream to produce a stream exceptionally low in sulfur, with total aromatics and polynuclear aromatics being moderately reduced. A distillate stream is hydrodesulfurized in a first hydrodesulfurization stage. The product st... | 10/14/2008 |
| 7435336 | Process for carrying out gas-liquid countercurrent processing The present invention relates to a process for carrying our gas-liquid countercurrent processing comprising passing the liquid material and the gas reactant in countercurrent flow through the fixed bed of catalyst in a reactor, characterized in that the fixed bed of... | 10/14/2008 |
| 7422679 | Low CO for increased naphtha desulfurization Naphtha hydrodesulfurization selectivity is increased by reducing the amount of COX (CO plus ½ CO2) in the hydrodesulfurization reaction zone to less than 100 vppm. While this is useful for non-selective hydrodesulfurization, it is particularl... | 09/09/2008 |
| 7419586 | Two-stage hydrodesulfurization of cracked naphtha streams with light naphtha bypass or removal A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically-bound sulfur and olefins. The olefinic naphtha stream is selectively desulfurized in a first hydrodesulfurization stage. The effluent stream f... | 09/02/2008 |
| 7399402 | Method for hydrotreatment of a mixture of hydrocarbon compounds, rich in olefins and aromatic compounds Process for the hydrotreatment of a mixture of C4 to C8 hydrocarbon-based compounds, rich in olefins and monoaromatic compounds, by hydrogenation in the presence of a solid catalyst, characterized in that an ammonia precursor is introduced into the charge of hydroca... | 07/15/2008 |
| 7361624 | Catalyst for hydrotreating gas oil, process for producing the same, and method for hydrotreating gas oil A catalyst for hydrotreating gas oil, which comprises an inorganic oxide support having provided thereon: at least one selected from metals in the Group 6 of the periodic table at from 10 to 30% by weight, at least one selected from metals in the Group 8 of the peri... | 04/22/2008 |
| 7361265 | Process for the selective hydrodesulfurization of olefinic naphtha streams A process for the hydrodesulfurization of cracked olefin streams is described, the process aiming at reducing the sulfur content while at the same time minimizing the hydrogenation degree of said olefins. In order to dilute the added reaction hydrogen, the process m... | 04/22/2008 |
| 7357856 | Nitrogen removal from olefinic naphtha feedstreams to improve hydrodesulfurization versus olefin saturation selectivity A two stage process for selectively hydrodesulfurizing olefinic and sulfur and nitrogen-containing naphtha feedstreams wherein the first stage is a nitrogen removal stage to produce a naphtha feedstream having reduced levels of nitrogen compounds and a second stage ... | 04/15/2008 |
| 7347931 | Partially coked catalysts that can be used in the hydrotreatment of fractions that contain sulfur-containing compounds and olefins The invention relates to a catalyst for the selective hydrodesulfurization of hydrocarbon-containing feedstocks that comprise sulfur-containing compounds and olefins. This catalyst comes in a sulfurized form and comprises a substrate that is selected from among the ... | 03/25/2008 |
| 7341657 | Process for reducing sulfur and olefin contents in gasoline Disclosed is a process for reducing sulfur and olefin contents in gasoline, comprising contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and an paraffin-modification catalyst. The effluent of the process is separated to obtain a hydrotreated g... | 03/11/2008 |
| 7342145 | Process for refining liquefied petroleum gas in a commercial scale The present invention relates to a novel process for refining the liquefied petroleum gas (LPG) in a commercial scale. The process comprises: sequentially performing fine desulfurization and mercaptan conversion of the LPG after alcohol amine treatment through desul... | 03/11/2008 |
| 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 |
| 7297252 | Catalyst activation in the presence of olefinic hydrocarbon for selective 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. ... | 11/20/2007 |
| 7297251 | Multi-stage hydrodesulfurization of cracked naphtha streams with a stacked bed reactor A process for the selective hydrodesulfurization of naphtha streams containing a substantial amount of olefins and organically bound sulfur. The naphtha stream is selectively hydrodesulfurized by passing it through a first reaction zone containing a bed of a first h... | 11/20/2007 |
| 7291258 | HDS process using selected naphtha streams A process for concurrently fractionating and hydrotreating a full range naphtha stream. The full boiling range naphtha stream is subjected to simultaneous hydrodesulfurization and splitting into a light boiling range naphtha and a heavy boiling range naphtha, which ... | 11/06/2007 |
| 7288181 | Producing low sulfur naphtha products through improved olefin isomerization The instant invention relates to a process to produce high octane, low sulfur naphtha products through the removal of basic nitrogen-containing compounds with subsequent skeletal isomerization of feed olefins and hydrotreating. ... | 10/30/2007 |
| 7279438 | Coated insulation board or batt An insulation composite for attenuating energy or sound transmission has a body layer of insulating material with a roughly textured face and a uniform thickness solid cover layer permanently embedded in the body layer to a partial depth so that material of the body... | 10/09/2007 |
| 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 |
| 7247235 | Hydrogenation of middle distillate using a counter-current reactor A process for the hydrogenation of a hydrocarbon feed includes contacting a major amount of the hydrocarbon feed with hydrogen in a counter-current manner in a first reaction zone under hydrogenation reaction conditions in the presence of a hydrogenation catalyst in... | 07/24/2007 |
| 7235173 | Hydrotreating catalyst that contains a nitrogen-containing organic compound and its use A hydrotreating catalyst that contains at least one element of group VIB and/or group VIII of the periodic table and optionally phosphorus and/or silicon, with an organic compound as an additive that contains at least one nitrogen atom, is used for the transformatio... | 06/26/2007 |
| 7232515 | Hydrofining process using bulk group VIII/Group VIB catalysts A process for hydrofining a lubricating oil feedstock comprising contacting the feedstock with a hydrofining catalyst in a hydrofining zone under hydrofining conditions wherein the hydrofining catalyst comprises a bulk metal catalyst containing non-noble Group VIII ... | 06/19/2007 |
| 7232516 | Desulfurization with octane enhancement A desulfurization system employing a system of fluidizable and circulatable solid particles to desulfurize a hydrocarbon-containing fluid in a fluidized bed reactor. The solid particulate system includes solid sorbent particles operable to remove sulfur from the hyd... | 06/19/2007 |
| 7229548 | Process for upgrading naphtha A method for upgrading a naphtha feed to a naphtha product containing less than about 10 wppm of nitrogen and less than about 15 wppm sulfur, the method comprising contacting said naphtha feed with hydrogen in the presence of a bulk multimetallic catalyst under effe... | 06/12/2007 |
| 7223713 | Molybdenum sulfide/carbide catalysts The present invention provides methods of synthesizing molybdenum disulfide (MoS2) and carbon-containing molybdenum disulfide (MoS2-xCx) catalysts that exhibit improved catalytic activity for hydrotreating reactions involving hydrode... | 05/29/2007 |
| 7223333 | Process for hydrodesulphurization of cuts containing sulphur containing compounds and olefins in the presence of a catalyst comprising an element of group VIII and tungsten Conducting the hydrodesulphurization of gasoline cuts in the presence of a catalyst comprising at least one support, at least one element of group VIII and tungsten, in which the atomic ratio (element of group VIII)/(element of group VIII+tungsten) is greater than 0... | 05/29/2007 |
| 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 |
| 7220352 | Selective hydrodesulfurization of naphtha streams A process for the selective hydrodesulfurization of naphtha streams containing sulfur and olefins. A substantially olefins-free naphtha stream is blended with an olefins/sulfur-containing naphtha stream and hydrodesulfurized resulting in the substantial removal of s... | 05/22/2007 |
| 7214309 | Process for upgrading heavy oil using a highly active slurry catalyst composition The instant invention is directed to a process for upgrading heavy oils using a slurry composition. The slurry composition is prepared in a series of steps, involving mixing a Group VIB metal oxide with aqueous ammonia to form an aqueous mixture and sulfiding the mi... | 05/08/2007 |
| 7202189 | Shaped catalysts for transalkylation of aromatics for enhanced xylenes production A catalyst, a process for using the catalyst whereby the catalyst effectively transalkylates C7, C9, and C10 aromatics to C8 aromatics are disclosed. The catalyst comprises a support such as mordenite plus a metal componen... | 04/10/2007 |
| 7196034 | Nickel-iron-silica-alumina The invention is directed to a catalyst suitable for the hydrogenation of hydrocarbon resins, comprising a supported nickel on silica and alumina catalyst, said catalyst having a nickel content of 45 to 85 wt. %, a silicon content, calculated as SiO2, of ... | 03/27/2007 |
| 7186329 | High-macropore hydroprocessing catalyst and its use The present invention pertains to a catalyst comprising 7–20 wt. % of a Group VIB metal component, calculated as trioxide on the weight of the catalyst, and 0.5 to 6 wt. % of a Group VIII metal component, calculated as oxide on the weight of the catalyst, on a por... | 03/06/2007 |
| 7179366 | Catalyst based on a group VI metal and a group VIII metal at least partially present in the form of heteropolyanions in the oxide precursor A catalyst contains at least one group VIII element and at least molybdenum and/or tungsten, said elements being present at least in part in the catalyst in the dry state in the form of at least one heteropolyanion with formula MxAB6O24 | 02/20/2007 |
| 7169294 | Hydroprocessing catalyst and use thereof The invention pertains to a hydroprocessing catalyst suitable for the conversion of heavy hydrocarbon oils, which comprises 7–20 wt. % of Group VI metal, calculated as trioxide, and about 0.5–6 wt. % of Group VIII metal, calculated as oxide, on a carrier compris... | 01/30/2007 |
| 7160439 | Catalytic composition for the upgrading of hydrocarbons having boiling points within the naphtha range A process is described for the upgrading of hydrocarbon mixtures which boil within the naphtha range containing sulfur impurities, i.e. a hydrodesulfuration process with contemporaneous skeleton isomerization and reduced hydrogenation degree of the olefins contained... | 01/09/2007 |
