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| Number | Title | Issue Date |
| 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 |
| 7384538 | Catalyst combination for the hydroisomerization of waxy feeds at low pressure A process for the hydroisomerization of a waxy feed having a major portion boiling above 650° F. to produce a lubricating base oil having a lower pour point, said process comprising (a) passing the waxy feed along with hydrogen gas through a hydroisomerization zone... | 06/10/2008 |
| 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 |
| 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 |
| 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 |
| 7025872 | Process for obtaining a feedstock that can be used in an etherification unit Process for obtaining a hydrocarbon fraction that can be used as a feedstock of an etherification unit and that contains a small amount of diene compounds, nitrogen-containing compounds and sulfur-containing compounds, starting from an initial hydrocarbon feedstock ... | 04/11/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6420619 | Cracked gas processing and conversion for propylene production The C3 to C6 cut from a cracking process containing propylene, butane, 1-butene, 2-butene and acetylenic and diene components including butadiene are preferentially converted to propylene. The cut is simultaneously fractionated and c... | 07/16/2002 |
| 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 |
| 6284128 | Reforming with selective reformate olefin saturation A process combination is disclosed to selectively upgrade hydrocarbons in a manner to essentially eliminate olefins in product from the combination. Preferably the hydrocarbons comprise naphtha which is reformed to upgrade its octane number and/or to prod... | 09/04/2001 |
| 6278034 | Hydrogenation of hydrocarbons A process for hydrogenating long chain hydrocarbons includes continuously feeding a feedstock having long chain hydrocarbons into a slurry bed including a slurry of catalyst particles in a slurrying liquid. The slurry bed is contained in a reaction zone a... | 08/21/2001 |
| 6241876 | Selective ring opening process for producing diesel fuel with increased cetane number A process, preferably in a counter-current configuration, for selectively cracking carbon-carbon bonds of naphthenic species using a low acidic catalyst, preferably having a crystalline molecular sieve component and carrying a Group VIII noble metal. The ... | 06/05/2001 |
| 6238549 | Process for converting hydrocarbons by treatment in a distillation zone associated with a reaction zone, comprising re-contacting a vapor distillate with the feed, and its use for hydrogenating benzine The invention concerns a process for converting a hydrocarbon feed in which said feed is treated in a distillation zone producing an overhead vapor distillate and a bottom effluent, associated with an at least partially external reaction zone comprising a... | 05/29/2001 |
| 6210563 | Process for producing diesel fuel with increased cetane number A process is provided for selectively producing diesel fuel with increased cetane number from a hydrocarbon feedstock. The process includes contacting the feedstock with a catalyst which has a large pore crystalline molecular sieve material component havi... | 04/03/2001 |
| 6175046 | Method of hydrogenating aromatic hydrocarbons in hydrocarbon oil There is provided a catalyst that is highly resistant to sulfur and nitrogen compounds and active for hydrogenation and shows a low hydrocracking rate and a long service life as well as a method of converting aromatic hydrocarbons in hydrocarbon oil conta... | 01/16/2001 |
| 6153805 | Process for obtaining cyclohexane by catalytic benzene hydrogenation A process for the obtention of low impurity cyclohexane content, practically methylcyclopentane (MCP) free, by catalytic hydrogenation of benzene in gas phase in the presence of group VIII metal catalyzers. The catalytic hydrogenation is performed in the ... | 11/28/2000 |
| 6123835 | 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... | 09/26/2000 |
| 6071402 | Hydrodefining and hydrocracking catalyst comprising a mixed sulphide comprising sulphur, at least one group VB element and at least one group VIB element The present invention concerns a hydrorefining and/or hydrocracking catalyst for hydrocarbon feeds, comprising at least one mixed sulphide comprising sulphur, at least one group VB element, preferably niobium, and at least one group VIB element, preferabl... | 06/06/2000 |
| 5989410 | Process for improving the pour point of paraffin feedstocks with a catalyst containing an IM-5 zeolite base The invention relates to a process for improving the pour point of a feedstock that comprises paraffins of more than 10 carbon atoms, in which the feedstock that is to be treated is brought into contact with a catalyst that comprises the IM-5 zeolite and ... | 11/23/1999 |
| 5986154 | Process for the hydrogenation of aromatic compounds comprising chlorine injection, using catalysts based on a noble metal The invention concerns a process for the hydrogenation of aromatic compounds contained in feeds with an initial boiling point of more than 100° C. and which contain at least 10% by weight of aromatic compounds. It consists of introducing chlorine in a co... | 11/16/1999 |
| 5954941 | Jet engine fuel and process for making same The invention concerns a jet engine fuel having the following characteristics: i) distilling range from 140 to 300° C.; ii) cis-decalin/trans-decalin ratio greater than 0.2; iii) aromatics content less than 22% by volume; iv) sulfur content less than 100 ppm, and ... | 09/21/1999 |
| 5948239 | Process for obtaining distillate fuel products using a multi-bed catalytic reactor Disclosed herein is a highly efficient process for producing distillate fuels using a multi-bed hydrogenation reactor. The temperature of the feed to the second and subsequent reactor beds is controlled by removing effluent from the prior bed, cooling the... | 09/07/1999 |
| 5904838 | Process for the simultaneous conversion of waste lubricating oil and pyrolysis oil derived from organic waste to produce a synthetic crude oil A process for the simultaneous conversion of waste lubricating oil and pyrolysis oil derived from organic waste to produce a synthetic crude oil by means of contacting the combined feed with a hot hydrogen-rich gaseous stream to increase the temperature o... | 05/18/1999 |
| 5879537 | Hydrocarbon conversion process using staggered bypassing of reaction zones A multistage catalytic hydrocarbon conversion system is disclosed in which hydrocarbons flow serially through at least two reaction zones and through which catalyst particles move. Where three reaction zones are used, the effluent stream from the first re... | 03/09/1999 |
| 5865985 | Process for the production of diesel A process for the production of a diesel fuel includes contacting a feedstock comprising cracked stocks in the presence of hydrogen under conditions of elevated temperature and pressure with a first catalyst comprising a Group VI hydrogenation metal compo... | 02/02/1999 |
| 5824214 | Method for hydrotreating and upgrading heavy crude oil during production Heavy crude oil containing at least 1% by weight water is hydrotreated and upgraded while being produced downhole in a production well. During production the heavy crude oil containing water is subjected to sonic energy at a low frequency of 400 Hz to 10 ... | 10/20/1998 |
| 5789637 | Process for the hydrogenation of aromatic compounds comprising chlorine injection, using catalysts based on a noble metal The invention concerns a process for the hydrogenation of aromatic compounds contained in feeds with an initial boiling point of more than 100° C. and which contain at least 10% by weight of aromatic compounds. It consists of introducing chlorine in a co... | 08/04/1998 |
| 5744025 | Process for hydrotreating metal-contaminated hydrocarbonaceous feedstock The present invention provides a process for hydrotreating a metal-contaminated hydrocarbonaceous feedstock of which at least 60% wt. boils at a temperature 370° C., the process comprising contacting the feedstock at elevated temperature and elevated pre... | 04/28/1998 |
| 5679241 | Olefin plant recovery system employing catalytic distillation The C2 to C5 and heavier acetylenes and dienes in a thermally cracked feed stream are hydrogenated without significantly hydrogenating the C2 and C3 olefins. Additionally, the C4 and heavier olefins m... | 10/21/1997 |
| 5595634 | Process for selective hydrogenation of highly unsaturated compounds and isomerization of olefins in hydrocarbon streams A process for treating C3 to C12 petroleum fractions, such as a light cracked naphtha to be used as an etherification feed stock in which H2 S is removed by distillation of at least the C3 fraction and mercaptan... | 01/21/1997 |
| 5496464 | Hydrotreating of heavy hydrocarbon oils in supercritical fluids A process is described for hydrotreating a heavy hydrocarbon oil containing a substantial portion of material which boils above 524° C. to form lower boiling materials, which comprises adding to the heavy hydrocarbon oil as solvent a paraffinic, isoparaf... | 03/05/1996 |
| 5420371 | Hydrocarbon processing using fullerene catalysts A process is described for carrying out the dehydrogenation or hydrogenation, including hydrogenolysis, of a hydrocarbon in the presence of one or more soluble fullerene catalysts which have been dissolved in the hydrocarbon (when the hydrocarbon is a liq... | 05/30/1995 |
| 5395511 | Process for converting heavy hydrocarbon oil into light hydrocarbon fuel A process is provided for converting a heavy hydrocarbon oil into light hydrocarbon fuels by thermal cracking or hydrocracking, which comprises adding to about 100 parts by weight of the heavy hydrocarbon oil feedstock (A) about 0.1 to 50 parts by weight ... | 03/07/1995 |
| 5360534 | Isomerization of split-feed benzene-containing paraffinic feedstocks The benzene content in a gasoline pool is reduced by an isomerization process that splits a benzene-containing C4 -C6 feedstream between at least two reaction zones and combines the feed fractions with effluent streams. The splitting... | 11/01/1994 |
