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| Number | Title | Issue Date |
| 7510646 | Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends containing branched olefinic cuts Process for the production of hydrocarbon blends with a high octane number by the hydrogenation of hydrocarbon blends, containing branched C8, C12 and C16 olefinic cuts, characterized by sending said blends, as such or fractionated i... | 03/31/2009 |
| 7371316 | Production of lower molecular weight hydrocarbons A catalytic composition useful for cracking and reducing the viscosity of heavy hydrocarbons. The catalytic composition comprises Portland cement, a volcanic ash component, titanium dioxide, and a transition metal salt. Optionally, a hydrogen source is added to the ... | 05/13/2008 |
| 7351780 | Method for manufacturing high viscosity polyalphaolefins using ionic liquid catalysts A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the hig... | 04/01/2008 |
| 7342143 | Polyalphaolefin having a low halide concentration and a method of manufacturing thereof A method for the processing of a polyalphaolefin feedstock having a concentration of organic halide to thereby yield a polyalphaolefin end-product having a low concentration of organic halide. The method includes a hydrogenation step whereby the polyalphaolefin feed... | 03/11/2008 |
| 7319177 | Process for producing cumene A process for producing cumene, which comprises supplying cumyl alcohol and hydrogen to a dehydration catalyst to obtain a mixture containing α-methyl styrene and water produced and hydrogen, and supplying the mixture to a hydrogenation catalyst. ... | 01/15/2008 |
| 7285695 | Hydrogenation of hydrocarbon resins The invention is directed to a process for the hydrogenation of hydrocarbon resins in the presence of a precious metal catalyst, wherein the hydrogenation is performed in the additional presence of at least one metal oxide, capable of reacting with sulfide and/or ha... | 10/23/2007 |
| 7282137 | Process for preparing basestocks having high VI A process for preparing high VI lubricating oil basestocks comprising hydrotreating, hydrodewaxing and optionally hydrofinishing. The hydrotreating step is under conditions such that the amount of conversion to 343° C. minus is less than 5 wt. % of the feedstock an... | 10/16/2007 |
| 7276150 | Method of desulfurizing gas oil fraction, desulfurized gas oil, and desulfurizer for gas oil fraction The process for desulfurizing a gas oil fraction according to the invention comprises a low-boiling gas oil fraction hydrodesulfurization step (I) wherein a low-boiling gas oil fraction is desulsurized under the condition of a H2/Oil ratio of 70 to 200 Nm... | 10/02/2007 |
| 7270737 | Process for desulfurization comprising a stage for selective hydrogenation of diolefins and a stage for extraction of sulfur-containing compounds For desulfurization of a hydrocarbon-containing feedstock, at least one stage for selective hydrogenation of diolefins present in the initial hydrocarbon feedstock, in the presence of a catalyst of group VIII of the period table, and a stage for extraction by a solv... | 09/18/2007 |
| 7220350 | Wax isomerate yield enhancement by oxygenate pretreatment of catalyst A waxy hydrocarbon feed is catalytically treated with a dewaxing catalyst that has been selectively activated. The selective activation of the catalyst involves treating the catalyst with at least one oxygenate. The selectively activated catalyst can then be used to... | 05/22/2007 |
| 7201838 | Oxygenate treatment of dewaxing catalyst for greater yield of dewaxed product Fischer-Tropsch hydrocarbon synthesis using a cobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by c... | 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 |
| 7173160 | Processes for concentrating higher diamondoids Hydroprocessing such as hydrocracking is advantageously employed in processes for the recovery and purification of higher diamondoids from petroleum feedstocks. Hydrocracking and other hydroprocesses degrade nondiamondoid contaminants. ... | 02/06/2007 |
| 7169291 | Selective hydrocracking process using beta zeolite Increased yields of middle distillate products are obtained in a hydrocracking process by the use of a catalyst containing a beta zeolite. In embodiments, the beta zeolite has not been hydrothermally treated or has been hydrothermally treated at a relatively low tem... | 01/30/2007 |
| 7132043 | Process to prepare a lubricating base oil Process to prepare a lubricating base oil starting from a lubricating base oil which is obtained by first removing part of the aromatic compounds from a petroleum fraction boiling in the lubricating oil range by solvent extraction and subsequently dewaxing the solve... | 11/07/2006 |
| 7125818 | Catalyst for wax isomerate yield enhancement by oxygenate pretreatment A dewaxing catalyst is selectively activated by treatment with an oxygenate. Selective activation is accomplished by treated the dewaxing catalyst with a carrier feed containing oxygenate. The selectively activated dewaxing catalyst when used to dewax waxy hydrocarb... | 10/24/2006 |
| 7087155 | Production of olefins A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards light olefins in the effluent, the process comprising contacting a hydrocarbon feedstock containing olefins having a first composition of at least one olefinic component with a cr... | 08/08/2006 |
| 7087152 | Wax isomerate yield enhancement by oxygenate pretreatment of feed A waxy hydrocarbon feed is catalytically dewaxed with a catalyst that has been selectively activated. The selective activation of the catalyst involves contacting the dewaxing catalyst with a feed mixture containing waxy hydrocarbon and at least one oxygenate. The p... | 08/08/2006 |
| 7077947 | Process for preparing basestocks having high VI using oxygenated dewaxing catalyst A process for preparing high VI lubricating oil basestocks comprising hydrotreating, hydrodewaxing and optionally hydrofinishing. The hydrotreated feedstock is hydrodewaxed using a dewaxing catalyst that has been selectively activated by oxygenate treatment. The hyd... | 07/18/2006 |
| 7048845 | Middle distillate selective hydrocracking process Increased yields of middle distillate products are obtained in a hydrocracking process by the use of a catalyst containing a Beta zeolite which has been hydrothermally treated to adjust the distribution of relatively weak and strong acid sites. The number of strong ... | 05/23/2006 |
| 7014750 | System and process for pyrolysis gasoline hydrotreatment Systems and processes for the hydrotreatment of pyrolysis gasoline comprising reactors, monolithic catalyst beds and hydrogen-containing treatment gases that allow for improved efficiency and productivity over conventional trickle bed processes and systems for such ... | 03/21/2006 |
| 6964936 | Method of making maximally dispersed heterogeneous catalysts A method of making a catalyst with monolayer or sub-monolayer metal by controlling the wetting characteristics on the support surface and increasing the adhesion between the catalytic metal and an oxide layer. There are two methods that have been demonstrated by exp... | 11/15/2005 |
| 6951605 | Method for making lube basestocks A method to produce high quality lube oil products involving hydrotreating a waxy feed to produce a hydrotreated feed and subsequently hydrodewaxing the hydrotreated feed and hydrofinishing the hydrodewaxed feed. ... | 10/04/2005 |
| 6881326 | Two phase hydroprocessing A process where the need to circulate hydrogen through the catalyst is eliminated. This is accomplished by mixing and/or flashing the hydrogen and the oil to be treated in the presence of a solvent or diluent in which the hydrogen solubility is “high” relative t... | 04/19/2005 |
| 6855245 | Hydrogenation process The invention is directed to a process for the hydrogenation of a sulfur containing feedstock, having a sulfur content of less than 50 ppm, wherein the feedstock is hydrogenated in the presence of a precious metal catalyst and a nickel-catalyst, said process being c... | 02/15/2005 |
| 6824674 | Pyrolysis gasoline stabilization A method for increasing the operational life-time of a pyrolysis gasoline hydrotreating process using a supported Group VIII metal catalyst by employing a catalyst having a significantly increased total surface area. ... | 11/30/2004 |
| 6794552 | Hydrocarbon hydrogenation catalyst and process A catalyst composition is provided which can be used for hydrogenating a highly unsaturated hydrocarbon such as an alkyne or a diolefin. The catalyst composition contains palladium, a catalyst component of either silver or an alkali metal compound, or both silver an... | 09/21/2004 |
| 6740787 | Process for treatment of C4 hydrocarbons that comprise butadiene and acetylene compounds that comprise stages for distillation and selective hydrogenation A process for treatment of a batch with four carbon atoms that contains diene compounds and a minor portion of acetylene compounds is described. A portion of the fluid that circulates in a distillation zone that is enriched with acetylene compounds is drawn off late... | 05/25/2004 |
| 6693225 | Process for hydrogenating cuts containing hydrocarbons, in particular unsaturated molecules containing at least two double bonds or at least one triple bond Hydrogenation of a liquid cut containing hydrocarbons, in particular unsaturated molecules containing at least two double bonds or at least one triple bond, is described wherein the unsaturated molecules are at least partially hydrogenated to less unsatur... | 02/17/2004 |
| 6537442 | Cogel containing oxidic compounds of tetravalent, trivalent, and divalent metallic elements The invention pertains to a cogel comprising oxidic compounds of one or more trivalent metallic elements selected from the group of aluminum, borium, gallium, chromium, iron, cobalt, manganese, vanadium, molybdenum, tungsten, indium, rhodium, scandium, or... | 03/25/2003 |
| 6508931 | Process for the production of white oil A process for the production of white oil includes adding a supercritical fluid (propane, butane or carbon dioxide) to the base oil and hydrogen injected into a reactor for hydrogenation. The base oil and supercritical fluid use high-pressure injector pum... | 01/21/2003 |
| 6503388 | Process for the hydrogenation of a thiophenic sulfur containing hydrocarbon feed The invention is directed to a process for the hydrogenation of a hydrocarbon feed containing thiophenic sulfur contaminants, wherein the entire feed is contacted with a nickel catalyst, the improvement comprising contacting the said feed additionally wit... | 01/07/2003 |
| 6500329 | Selective ring opening process for producing diesel fuel with increased cetane number A two stage process useful for cetane upgrading of diesel fuels. More particularly, the invention relates to a process for selective naphthenic ring-opening utilizing an extremely low acidic distillate selective catalyst having highly dispersed Pt. The pr... | 12/31/2002 |
| 6436279 | Simplified ebullated-bed process with enhanced reactor kinetics This invention teaches an improved ebullated-bed reactor hydrotreating/hydrocracking process for treating heavy vacuum gas oil (HVGO) and deasphalted oil (DAO) feeds. The reactor is designed to operate at minimum catalyst bed expansion so as to maximize r... | 08/20/2002 |
| 6433242 | Process for fractionating dibutene The invention relates to a process for separating dibutenes into an n-octene-containing fraction and a dimethylhexene-containing fraction. The fractions can be processed further separately to the corresponding C9 carboxylic acids and C9 | 08/13/2002 |
| 6428686 | Two phase hydroprocessing A process where the need to circulate hydrogen through the catalyst is eliminated. This is accomplished by mixing and/or flashing the hydrogen and the oil to be treated in the presence of a solvent or diluent in which the hydrogen solubility is "high" rel... | 08/06/2002 |
| 6413413 | Hydrogenation process A process for hydrodesulfurization in which gasoline boiling range petroleum feed and hydrogen are contacted in a reactor with a fixed bed hydrodesulfurization catalyst at an WHSV of greater than 6, pressure of less than 300 psig and temperature of 300 to... | 07/02/2002 |
| 6410811 | Selective hydrogenation process comprising partial separation of hydrogen by a membrane upstream of a reactive column The process of the invention is a process for selective hydrogenation of a hydrocarbon feed containing hydrogen and C2+ hydrocarbons, characterized in that it comprises at least one step for separating a fraction of the hydrogen cont... | 06/25/2002 |
| 6398950 | Hydrogenation catalyst and method of hydrogenating heavy oil The present invention relates to a catalyst for hydrogenation treatment in which Mo--Ni, Mo--Co or the like is supported on an alumina-type carrier, and a method for hydrogenation treatment of heavy oil using the same. More specifically, it relates to the... | 06/04/2002 |
| 6329561 | Impurities removal The method of producing high purity isooctane useful as a gasoline blending component from diisobutylene or isooctane contaminated with minor amounts of oxygenated impurities which comprises converting the impurities at conditions of elevated temperature ... | 12/11/2001 |
