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| Number | Title | Issue Date |
| 7417073 | Preparation of titania and cobalt aluminate catalyst supports and their use in Fischer-Tropsch synthesis Supports for Fischer-Tropsch catalysts are formed by forming a particulate material from titania, alumina and optionally silica. A cobalt compound is incorporated into the particulate material which then is calcined to convert at least part of the alumina to cobalt ... | 08/26/2008 |
| 7357855 | Reactor for chemical conversion of a feed with added heat, and crosswise flow of feed and catalyst Described are a reactor for carrying out a chemical conversion process in a catalytic bed with mechanism for supplying heat integrated into the reactor, and with a very compact reaction zone, combined with efficient use of the catalyst, and a process for converting ... | 04/15/2008 |
| 7326819 | High-activity isomerization catalyst and process A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 02/05/2008 |
| 7238847 | Apparatus and method for determining and controlling the hydrogen-to-carbon ratio of a pyrolysis product liquid fraction A process and apparatus for determining the hydrogen-to-carbon ratio of the liquid fraction of a pyrolysis product by determining the hydrogen-to-carbon ratio of the pyrolysis product gas fraction and subtracting the thus determined value from the determined hydroge... | 07/03/2007 |
| 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 |
| 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 |
| 7063982 | Process of vaporizing and reacting a liquid feed A process for evaporating a liquid feed and reacting said feed in the presence of catalyst to make product within a reactor having both an evaporation zone and a reaction zone comprises the steps of providing packing in the evaporation zone, providing catalyst in th... | 06/20/2006 |
| 6908543 | Method for retarding fouling of feed heaters in refinery processing A method of minimizing the formation of polymers and other heavy molecular weight products upon heating of a hydrocarbon stream in a hydroconversion process is described. Specifically, sufficient hydrogen-containing gas is added to the hydrocarbon stream before heat... | 06/21/2005 |
| 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 |
| 6881873 | High-activity isomerization catalyst and process A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 04/19/2005 |
| 6869917 | Functional fluid lubricant using low Noack volatility base stock fluids The present invention relates to a fully formulated lubicants comprising poly α-olefins (PAOs), prepared from a mixed α-olefin feed, which exhibit superior Noack volatility at low pour points, and methods for preparing the fully formulated lubricants. The fully fo... | 03/22/2005 |
| 6793803 | Dewaxing process using zeolite SSZ-54 The present invention relates to the use of crystalline zeolite SSZ-54 as a catalyst in a process for dewaxing hydrocarbon feedstocks. ... | 09/21/2004 |
| 6790431 | Reactor for temperature moderation Embodiments include methods and apparatus for arranging multiple reaction zones such that at least one hot spot in one of the reaction zones is moderated by a cooler spot in an adjacent reaction zone. ... | 09/14/2004 |
| 6702935 | Hydrocracking process to maximize diesel with improved aromatic saturation A VGO stream is initially hydrocracked in a hydrocracking reaction zone within an integrated hydroconversion process. Effluent from the hydrocracking reaction zone is combined with a light aromatic-containing feed stream, and the blended stream hydrotreat... | 03/09/2004 |
| 6630066 | Hydrocracking and hydrotreating separate refinery streams This invention is directed to middle distillate production (e.g., diesel and kerosene products) by means of a reactor hydroprocessing system using two or more reactors (or a single reactor vessel having two or more stages, each stage containing one or mor... | 10/07/2003 |
| 6623624 | Process for preparation of fuels and lubes in a single integrated hydrocracking system An integrated distillate hydrocracking process produces one or more fuel products and one or more lube products from a first reaction stage. Heavy fractions from the first stage, which are not recovered as lube products, are cracked to fuels in a second r... | 09/23/2003 |
| 6524994 | Nickel catalyst A nickel catalyst comprising 0.1 to 12.5 wt. % of at least one structural promoter, selected from the group of oxides of metals and metalloids and combinations thereof, and 87.5 to 99.9 wt. % nickel, calculated on the weight of nickel and the structural p... | 02/25/2003 |
| 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 |
| 6485631 | Process for thermal, and optionally catalytic, upgrading and hydrogenation of hydrocarbons A process for thermal and, optionally, catalytic upgrading and hydrogenation of hydrocarbons is described, wherein the hydrocarbons (oil) with a lower API grade is passed through one or more reactors connected in parallell or in series, preferably in seri... | 11/26/2002 |
| 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 |
| 6425998 | Process for detecting impurities in liquid metal heat exchange fluid in high hydrogen permeation environment A process for using a hydrogen sensor in a liquid metal heat exchange loop in a hydrocarbon conversion process with high hydrogen permeation. The hydrogen sensor of the present invention consists essentially of a hollow nickel membrane probe in intimate c... | 07/30/2002 |
| 6399845 | Process for producing high grade diesel fuel Process for isomerisation of a hydrocarbonaceous feedstock substantially boiling in the gasoline range which feedstock comprises linear paraffins having at least five carbon atoms wherein the feedstock is contacted in the presence of hydrogen at elevated ... | 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 |
| 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 |
| 6224747 | Hydrocracking and hydrotreating A VGO stream is hydrocracking in a hydrocracking reaction zone within an integrated hydroconversion process. Effluent from the hydrocracking reaction zone is combined with a light aromatic-containing feed stream, and the blended stream hydrotreated in a h... | 05/01/2001 |
| 6193876 | Hydrogenation method and reactor The present invention relates to a novel type of hydrogenation reactor, to methods of hydrogenation implemented therein, and more generally to the use of such a reactor. A reactor of the invention has a double wall; said double wall comprising an outer wa... | 02/27/2001 |
| 6179996 | Selective purge for hydrogenation reactor recycle loop Processes and apparatus for providing improved contaminant removal and hydrogen recovery in hydrogenation reactors, particularly in refineries and petrochemical plants. The improved contaminant removal is achieved by selective purging, by passing gases in... | 01/30/2001 |
| 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 |
| 5972202 | Hydrotreating of heavy hydrocarbon oils with control of particle size of particulate additives A process is described for controlling the size of additive or catalyst particles mixed with heavy hydrocarbon oil feedstock containing asphaltenes and metals and being subjected to hydrotreating. A slurry feed of a mixture of the heavy hydrocarbon oil fe... | 10/26/1999 |
| 5928499 | Hydroconversion process employing catalyst with specified pore size distribution, median pore diameter by surface area, and pore mode by volume A process for hydrotreating a hydrocarbon feed containing components boiling above 1000° F. and sulfur, metals and carbon residue utilizing a heterogeneous catalyst having a specified pore size distribution, median pore diameter by surface area and pore ... | 07/27/1999 |
| 5910241 | Catalyst and hydrotreating process Catalyst comprising a porous inorganic refractory oxide wherein the catalyst has: (a) a total pore volume in the range of from 0.2 to 0.5 ml/g, (b) a macroporosity of at least 0.1 ml/g, (c) a microporosity of at least 0.05 ml/g, and (d) a surface area of at least 5... | 06/08/1999 |
| 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 |
| 5858209 | Catalytic reforming process with increased aromatics yield A processing step is added to an existing catalytic reforming unit to increase the yield of aromatic product. The additional processing comprises separation of product from the reforming unit into an aromatic concentrate and a low-octane recycle stream wh... | 01/12/1999 |
| 5855767 | Hydrorefining process for production of base oils A process for saturating aromatics in a lube range hydrocarbon is disclosed. The process can be used to raise the viscosity index of the lube range products. The process is carried out over a noble metal catalyst under mild process conditions. The catalys... | 01/05/1999 |
| 5672265 | Catalytic reforming process with increased aromatics yield A processing step is added to an existing catalytic reforming unit to increase the yield of aromatic product. The additional processing comprises separation of product from the reforming unit into an aromatic concentrate and a low-octane recycle stream wh... | 09/30/1997 |
| 5468371 | Catalyst for residual conversion demonstrating reduced toluene insolubles Heavy hydrocarbons are hydrotreated to increase content of components boiling below 1000° F. by contact with Group VIII non-noble metal oxide and Group VIB metal oxide on alumina having a Total Surface Area of 175-220 m2 /g, a Total Pore Volum... | 11/21/1995 |
| 5443715 | Method for upgrading steam cracker tars A process for the production of gaseous olefins which involves introducing a hydrocarbon feedstock stream into a high temperature thermal cracking zone to produce a high temperature cracked product stream, quenching the cracked product stream to stop the ... | 08/22/1995 |
