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| Number | Title | Issue Date |
| 7981275 | Catalytic composition for hydroprocessing of light and intermediate oil fractions The present invention relates to the novel catalytic composition having a high specific activity in reactions involving hydroprocessing of light and intermediate petroleum fractions, and preferably in hydrodesulphurization and hydrodenitrogenation reactions. The inv... | 07/19/2011 |
| 7938955 | Method for producing super-low sulfur gas oil blending component or super-low sulfur gas oil composition, and super-low sulfur gas oil composition Provided are a method for producing a super-low sulfur gas oil blending component or a super-low sulfur gas oil composition having a sulfur content of less than 5 mass ppm, under relatively mild conditions, without greatly increasing the hydrogen consumption and wit... | 05/10/2011 |
| 7875167 | Low pressure selective desulfurization of naphthas A low hydrogen partial pressure process for desulfurizing naphtha in the presence of a hydrodesulfurization catalyst which catalyst is selective for suppressing hydrogenation of olefins and in the presence. This invention also relates to the use of optimum metals lo... | 01/25/2011 |
| 7691257 | Process to manufacture low sulfur diesel fuels A process is provided for producing low sulfur diesel by hydrotreatment of suitable feed in the presence of a bulk metal catalyst. The feed is exposed under effective hydrotreating conditions to a catalyst including at least one Group VI metal, at least one Group VI... | 04/06/2010 |
| 7455762 | Selective hydrodesulfurization process This invention relates to a process for selectively hydrodesulfurizing naphtha feedstreams using a catalyst comprising at least one hydrodesulfurizing metal supported on a low acidity, ordered mesoporous support material. ... | 11/25/2008 |
| 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 |
| 7368625 | Catalysts with high cobalt surface area A catalyst or precursor thereto comprising cobalt and/or a cobalt compound on a transition alumina support having a total cobalt content of at least 41% by weight and a cobalt surface area, after reduction, greater than 25 m2 per gram of total cobalt. The... | 05/06/2008 |
| 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 |
| 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 |
| 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 |
| 7341977 | Method of sorbing sulfur compounds using nanocrystalline mesoporous metal oxides Compounds and methods for sorbing organosulfur compounds from fluids are provided. Generally, compounds according to the present invention comprise mesoporous, nanocrystalline metal oxides. Preferred metal oxide compounds either exhibit soft Lewis acid properties or... | 03/11/2008 |
| 7335618 | Method for manufacturing hydrorefining catalyst, and metal recovery method A heavy oil is hydrorefined using a hydrorefining catalyst. A spent hydrorefining catalyst whose activity has decreased is heat treated (S1) and pulverized to obtained a regenerated powder (S2). This regenerated powder is fractionated according to its ... | 02/26/2008 |
| 7335800 | Hydrogenation catalyst and hydrogenation method The present invention provides a hydrogenation catalyst effective for hydrogenating 3-hydroxypropionaldehyde to 1,3-propanediol. The hydrogenation catalyst comprises an α-alumina support, nickel, ruthenium, and a promoter. The nickel is deposited on the α-alumina ... | 02/26/2008 |
| 7311814 | Process for the production of hydrocarbon fluids Hydrocarbon fluids are produced by hydrocracking a vacuum gas oil stream, fractionating and/or hydrogenating the hydrocracked vacuum gas oil. The fluids typically have ASTM D86 boiling point ranges within the range 100° C. to 400° C. the range being no more than 7... | 12/25/2007 |
| 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 |
| 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 |
| 7288182 | Hydroprocessing using bulk Group VIII/Group VIB catalysts A process for hydroprocessing petroleum and chemical feedstocks by use of a bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least one, preferably two Group VIB metal wherein the ratio of Group VIB metal to Group VIII metal is ... | 10/30/2007 |
| 7270742 | Organosulfur oxidation process This invention is a method of purifying fuel streams containing organonitrogen and organosulfur impurities. The fuel stream is first treated to extract organonitrogen impurities so that the nitrogen content of the fuel stream is reduced by at least 50 percent. After... | 09/18/2007 |
| 7259286 | Attrition resistant bulk iron catalysts and processes for preparing and using same An attrition resistant precipitated bulk iron catalyst is prepared from iron oxide precursor and a binder by spray drying. The catalysts are preferably used in carbon monoxide hydrogenation processes such as Fischer-Tropsch synthesis. These catalysts are suitable fo... | 08/21/2007 |
| 7244352 | Selective hydroprocessing and mercaptan removal A process for producing a naphtha having a decreased amount of sulfur by selective hydroprocessing a petroleum feedstream comprising cracked naphtha to reduce its sulfur content with minimum loss of octane. The reduced sulfur naphtha stream contains mercaptan sulfur... | 07/17/2007 |
| 7238273 | 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 by a series of steps, involving mixing a Group VIB metal oxide and aqueous ammonia to form an aqueous mixture, and sulfiding the mi... | 07/03/2007 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7169726 | Catalyst for isomerization of solid fischer-tropsch paraffins and method for its production The present invention relates to a catalyst which consists of a combination of zeolite and platinum or palladium on aluminum oxide. The catalyst is suitable for converting solid Fischer-Tropsch paraffins into microcrystalline waxes. ... | 01/30/2007 |
