Hydrogenation (saturation) Patents (Class 208/142)
  • Patent number: 7988919
    Abstract: A process for hydrogenating a sample in a pressure range below supercritical pressure values includes supplying at least a solvent of the sample to be hydrogenated by a feed pump with a constant volume rate into a flow path to create a base solution; adding the sample being dissolved into the flow path; feeding hydrogen into the flow path through a valve configured to transmit hydrogen only into a single direction; leading the dissolved sample in the presence of a catalyst through a hydrogenation reactor, where the reactor is inserted into a section of the flow path located after the hydrogen feeding position; maintaining the pressure of the reaction in a given pressure range by element of a pressure-adjusting unit, and collecting a hydrogenate formed within the hydrogenation reactor in a product receptacle connected to the end of the flow path.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: August 2, 2011
    Assignee: ThalesNano Zrt
    Inventors: Ferenc Darvas, Lajos Godorhazy, Tamas Karancsi, Daniel Szalay, Ferenc Boncz, Laszlo Urge
  • Patent number: 7943037
    Abstract: A heavy residual petroleum feed boiling above 650° F.+ (345° C.+) is subjected to membrane separation to produce a produce a permeate which is low in metals and Microcarbon Residue (MCR) as well as a retentate, containing most of the MCR and metals, the retentate is then subjected to hydroconversion at elevated temperature in the presence of hydrogen at a hydrogen pressure not higher than 500 psig (3500 kPag) using a dispersed metal-on-carbon catalyst to produce a hydroconverted effluent which is fractionated to give naphtha, distillate and gas oil fractions. The permeate from the membrane separation may be used as FCC feed either as such or with moderate hydrotreatment to remove residual heteroatoms. The process has the advantage that the hydroconversion may be carried out in low pressure equipment with a low hydrogen consumption as saturation of aromatics is reduced.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: May 17, 2011
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Martin L. Gorbaty, David T. Ferrughelli, Edward W. Corcoran, Stephen M. Cundy
  • Patent number: 7931798
    Abstract: A heavy residual petroleum feed boiling above 650° F.+ (345° C.+) is subjected to hydroconversion at elevated temperature in the presence of hydrogen at a hydrogen pressure not normally higher than 500 psig (3500 kPag) using a dispersed metal-on-carbon catalyst to produce a hydroconverted effluent which is fractionated to form a low boiling fraction and a relatively higher boiling fraction which is subjected to membrane separation to produce a permeate which is low in metals and Microcarbon Residue (MCR) as well as a retentate, containing most of the MCR and metals. The process has the advantage that the hydroconversion may be carried out in low pressure equipment with a low hydrogen consumption as saturation of aromatics is reduced.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: April 26, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Martin L. Gorbaty, David T. Ferrughelli, Edward W. Corcoran, Stephen M. Cundy, Andrew Kaldor
  • Patent number: 7927480
    Abstract: A process for the desulfurization of a fluid catalytically cracked naphtha wherein the valuable olefins are retained and recombinant mercaptans are prevented from forming, resulting in a low sulfur naphtha. Embodiments disclosed herein may allow for more flexibility in varying the end point of the naphtha used in gasoline blending.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: April 19, 2011
    Assignee: Catalytic Distillation Technologies
    Inventor: Gary G. Podrebarac
  • Patent number: 7910070
    Abstract: A process and system for separating and saturating benzene from a reforming reactor effluent begins with introducing the reforming reactor effluent to a combined stabilizer and naphtha splitter. An overhead stream comprising light ends, a sidecut stream comprising C4? C5 compounds, a bottoms stream comprising C7+ compounds and a heart cut stream comprising C4, C5, C6 compounds including benzene are all removed from the combined stabilizer and naphtha splitter. The heart cut stream is introduced to a side stripper to produce a side stripper overhead stream reduced in benzene and a side stripper bottoms stream enriched in benzene. At least a portion of the side stripper bottoms stream enriched in benzene is introduced into a hydrogenation zone to saturate benzene and generate a hydrogenation zone effluent reduced in benzene. The side stripper overhead stream may be recycled to the combined stabilizer and naphtha splitter.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: March 22, 2011
    Assignee: UOP LLC
    Inventors: Cynthia K. Zimmerman, Gavin P. Towler
  • Patent number: 7880044
    Abstract: Biogas is converted to a liquid fuel by passing the biogas through a liquid reaction medium that contains a petroleum fraction in the presence of a transition metal catalyst, and doing so at an elevated but non-boiling temperature.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: February 1, 2011
    Inventors: Rudolf W. Gunnerman, Peter W. Gunnerman
  • Patent number: 7737318
    Abstract: The invention relates to a process for preparing 1-butenic fractions having less than 2000 ppm of isobutene in relation to 1-butene from technical mixtures of C4 hydrocarbons I which contain at least 1-butene and 2000 ppmw to 8% by mass of isobutene based on the 1-butene, with or without n-butane, isobutane and/or 2-butenes.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: June 15, 2010
    Assignee: Evonik Oxeno GmbH
    Inventors: Silvia Santiago-Fernandez, Armin Rix, Jochen Praefke, Dirk Roettger, Markus Winterberg, Wilfried Bueschken
  • Patent number: 7727378
    Abstract: A process to prepare a waxy raffinate product by performing the following steps: (a) subjecting a Fischer-Tropsch derived product having a weight ratio of compounds boiling above 540° C. and compounds boiling between 370 and 540° C. of greater than 2 to a hydroconversion step and (b) fractionating the effluent of step (a) to obtain products boiling in the fuels range and a waxy raffinate product boiling between 350 and 600° C.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: June 1, 2010
    Assignee: Shell Oil Company
    Inventors: Jan Lodewijk Maria Dierickx, Arend Hoek, Lip Piang Kueh
  • Patent number: 7682500
    Abstract: A process for the conversion of a feedstock containing light cycle oil and vacuum gas oil to produce naphtha boiling range hydrocarbons and a higher boiling range hydrocarbonaceous stream having a reduced concentration of sulfur.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: March 23, 2010
    Assignee: UOP LLC
    Inventor: Tom N. Kalnes
  • Patent number: 7651603
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-75 prepared using a tetramethylene-1,4-bis-(N-methylpyrrolidinium) dication as a structure-directing agent, and its use in catalysts for hydrocarbon conversion reactions.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: January 26, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Allen W. Burton, Jr., Theodorus Ludovicus Michael Maesen, Berend Smit, Edith Beerdsen
  • Patent number: 7638664
    Abstract: One exemplary embodiment can include a hydrocarbon conversion process. Generally, the process includes passing a hydrocarbon stream through a hydrocarbon conversion zone comprising a series of reaction zones. Typically, the hydrocarbon conversion zone includes a staggered-bypass reaction system having a first, second, third, and fourth reaction zones, which are staggered-bypass reaction zones, and a fifth reaction zone, which can be a non-staggered-bypass reaction zone, subsequent to the staggered-bypass reaction system.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: December 29, 2009
    Assignee: UOP LLC
    Inventors: Kenneth D. Peters, Clayton C. Sadler
  • Patent number: 7622620
    Abstract: One exemplary embodiment can include a hydrocarbon conversion process. Generally, the process includes passing a hydrocarbon stream through a hydrocarbon conversion zone comprising a series of reaction zones. Typically, the hydrocarbon conversion zone includes a staggered-bypass reaction system having a first, second, third, and fourth reaction zones, which are staggered-bypass reaction zones, and a fifth reaction zone, which can be a non-staggered-bypass reaction zone, subsequent to the staggered-bypass reaction system.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: November 24, 2009
    Assignee: UOP LLC
    Inventors: Kenneth D. Peters, Clayton C. Sadler
  • Patent number: 7591310
    Abstract: A method includes producing formation fluid from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a gas stream. At least a portion of the liquid stream is provided to a hydrotreating unit. At least a portion of selected in situ heat treatment clogging compositions in the liquid stream are removed to produce a hydrotreated liquid stream by hydrotreating at least a portion of the liquid stream at conditions sufficient to remove the selected in situ heat treatment clogging compositions.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: September 22, 2009
    Assignee: Shell Oil Company
    Inventors: Johannes Kornelis Minderhoud, Richard Gene Nelson, Augustinus Wilhelmus Maria Roes, Robert Charles Ryan, Vijay Nair
  • Patent number: 7550634
    Abstract: Processes for the conversion of hydrocarbons boiling in the temperature range of from about 80° F. to about 1000° F. to diesel boiling range hydrocarbons, and processes for increasing the cetane number and amount of n-C17 hydrocarbon products in such processes. Diesel boiling range hydrocarbons may be produced by contacting a hydrocarbon boiling in the above-mentioned boiling range with a triglyceride-containing compound to form a mixture, and then contacting the mixture with a hydrotreating catalyst under suitable reaction conditions.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: June 23, 2009
    Assignee: ConocoPhillips Company
    Inventors: Jianhua Yao, Edward L. Sughrue, II, Joseph B Cross, James B. Kimble, Hsu-Hui Hsing, Marvin M. Johnson, Dhananjay B. Ghonasgi
  • Publication number: 20090145806
    Abstract: A method for upgrading a petroleum oil by a hydroprocessing reaction in which the oil is hydrogenated, includes the steps of: a. forming a liquid reaction mixture of the oil with water and an amphiphilic liquid in predetermined proportions to thereby render the oil and water miscible; b. introducing the liquid reaction mixture into an electrolytic reactor having one or more cathodic elements formed from a porous high surface area,conductive material; c. operating the reactor to form reactive hydrogen atoms whereby the oil is hydrogenated by the hydrogen atoms; d. removing the liquid mixture from the reactor; and e. separating the hydrogenated upgraded oil from the amphiphilic liquid and any remaining water, e.g., by distillation, recovering and recycling the amphiphilic liquid for use.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Inventor: Esam Zaki Hamad
  • Patent number: 7504548
    Abstract: The invention relates to a method for formulation of a synthetic gas oil or an additive for gas oil in which an alkyl-aromatic compound or a mixture of alkyl-aromatic compounds is selected based on at least one parameter that is selected from the group that consists of the number of cycles of the aromatic core, the number of alkyl chains that are grafted to the aromatic cycle, the length of the alkyl chain or chains, the position of the aromatic cycle or cycles on the alkyl chain or chains of said alkyl-aromatic compound or compounds such that the cetane number of the synthetic gas oil or the additive for gas oil is greater than 30. The invention also relates to a process for the production of alkyl-aromatic compounds for use as a gas oil or additive.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: March 17, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Patrick Briot, Sylvie Lacombe, Jean-François Joly, Eric Llido
  • Patent number: 7501054
    Abstract: A process for upgrading a diesel fuel, includes the steps of providing a diesel fuel feedstock; hydrogenating the feedstock at a pressure of less than about 600 psig so as to provide a hydrogenated product wherein a portion of the feedstock is converted to alkyl-naphthene-aromatic compounds; and selectively oxidizing the hydrogenated product in the presence of a catalyst so as to convert the alkyl-naphthene-aromatic compounds to alkyl ketones. A catalyst and oxygen-containing Diesel fuel are also provided.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: March 10, 2009
    Assignee: Intevep, S.A.
    Inventor: Roberto Galiasso
  • Patent number: 7491858
    Abstract: Feedstock originating from renewable sources is converted to hydrocarbons in diesel fuel distillation range by contacting with a supported catalyst comprising VIII group metal/metals, whereby the consumption of hydrogen is decreased.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: February 17, 2009
    Assignee: Fortum Oyj
    Inventors: Dmitry Yu Murzin, Iva Kubickova, Mathias Snåre, Päivi Mäki-Arvela, Jukka Myllyoja
  • Patent number: 7470357
    Abstract: An integrated process for the upgrading of a vacuum gas oil feedstock and a light cycle oil feedstock. The vacuum gas oil feedstock is hydrodesulfurized and the light cycle oil feedstock is hydrocracked.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: December 30, 2008
    Assignee: UOP LLC
    Inventors: Richard K. Hoehn, Vedula K. Murty
  • Patent number: 7417073
    Abstract: 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 aluminate.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: August 26, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Charles H. Mauldin, Louis F. Burns
  • Patent number: 7357855
    Abstract: 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 a feed, such as a hydrocarbon feed, undergoing an endothermic reaction using the disclosed reactor.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: April 15, 2008
    Assignee: Institute Francais du Petrole
    Inventors: Eric Lenglet, Nicolas Boudet, Frédéric Hoffman
  • Patent number: 7326819
    Abstract: 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 at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: February 5, 2008
    Assignee: UOP LLC
    Inventors: Ralph D. Gillespie, Michelle J. Cohn
  • Patent number: 7196034
    Abstract: 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 14 to 45 wt. %, an aluminium content, calculated as Al2O3, of 1 to 15 wt. % an iron content, calculated as Fe, 0.25 to 4 wt. %, all percentages having been calculated on the basis of the reduced catalyst, and which catalyst has a volume of pores between 2 and 60 nm, as defined herein, of at least 0.35 ml/g of catalyst.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: March 27, 2007
    Assignee: Engelhard Corporation
    Inventor: Lucas Laurentius Kramer
  • Patent number: 7173160
    Abstract: 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.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: February 6, 2007
    Assignee: Chevron U.S.A. Inc.
    Inventors: Theo Maesen, Robert M. Carlson, Jeremy E. Dahl, Shenggao Liu, Hye Kyung C. Timken, Waqar R. Qureshi
  • Patent number: 7132043
    Abstract: 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 solvent extracted product, wherein the following steps are performed, (a) contacting the lubricating base oil with a suitable sulphided hydrotreating catalyst in a first hydrotreating step; (b) separating the effluent of step (a) into a gaseous fraction and a liquid fraction; (c) contacting the liquid fraction of step (b) with a catalyst comprising a noble metal component supported on an amorphous refractory oxide carrier in the presence of hydrogen in a second hydrotreating step; and (d) recovering the lubricating base oil.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: November 7, 2006
    Assignee: Shell Oil Company
    Inventors: Eric Duprey, Jean-Paul Fattaz, Roland Albert Charles Garin, Patrick Moureaux
  • Patent number: 6908543
    Abstract: 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 heating to reduce its fouling tendency. The hydrogen-containing gas is added in an amount less than about 500 standard Cubic Feet per Barrel (SCFB). preferably less than about 100 SCFB and more preferably less than about 50 SCFB.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: June 21, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventor: Richard O. Moore, Jr.
  • Patent number: 6881873
    Abstract: 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 at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: April 19, 2005
    Assignee: UOP LLC
    Inventors: Ralph D. Gillespie, Michelle J. Cohn
  • Patent number: 6881326
    Abstract: 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 to the oil feed. The type and amount of diluent added, as well as the reactor conditions, can be set so that all of the hydrogen required in the hydroprocessing reactions is available in solution. The oil/diluent/hydrogen solution can then be fed to a plug flow reactor packed with catalyst where the oil and hydrogen react. No additional hydrogen is required, therefore, hydrogen recirculation is avoided and trickle bed operation of the reactor is avoided. Therefore, the large trickle bed reactors can be replaced by much smaller tubular reactor.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: April 19, 2005
    Assignee: Process Dynamics, Inc.
    Inventors: Michael D. Ackerson, Michael S. Byars
  • Patent number: 6869917
    Abstract: The present invention relates to a fully formulated lubicants comprising poly ?-olefins (PAOs), prepared from a mixed ?-olefin feed, which exhibit superior Noack volatility at low pour points, and methods for preparing the fully formulated lubricants. The fully formulated lubricants include PAOs that include mixtures of 1-decene and 1-dodecene. The PAOs may be prepared by polymerization/oligomerization using an alcohol promoted BF3 in conjunction with a combination of co-catalysts.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: March 22, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Douglas E. Deckman, Mark D. Winemiller, William L. Maxwell, David J. Baillargeon, Norman Yang, Maria Caridad B. Goze
  • Patent number: 6793803
    Abstract: The present invention relates to the use of crystalline zeolite SSZ-54 as a catalyst in a process for dewaxing hydrocarbon feedstocks.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: September 21, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventor: Richard N. Reynolds, Jr.
  • Patent number: 6790431
    Abstract: 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.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: September 14, 2004
    Assignee: ConocoPhillips Company
    Inventors: Daxiang Wang, Bang Cheng Xu, Yi Jiang
  • Publication number: 20040129209
    Abstract: A phosphate coating apparatus for depositing a phosphate coating on a metal material by electrolyzing the metal material in a predetermined electrolysis solution includes a positive electrode and a negative electrode, of which one electrode being disposed in contact with the metal material and the other electrode being disposed away from the metal material with a predetermined distance, and the other electrode being formed into a tubular shape so as to cover the entire length of the metal material.
    Type: Application
    Filed: February 5, 2004
    Publication date: July 8, 2004
    Inventors: Hiroshi Asakawa, Tetsuo Imatomi, Naoyuki Kobayashi, Shigemasa Takagi, Yoshihiro Fujita, Tokujiro Moriyama
  • Publication number: 20040054243
    Abstract: 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.
    Type: Application
    Filed: July 16, 2003
    Publication date: March 18, 2004
    Applicant: CHEVRON USA INC.
    Inventors: Theo Maesen, Robert M. Carlson, Jeremy E. Dahl, Shenggao Liu, Hye Kyung C. Timken, Waqar R. Qureshi
  • Patent number: 6702935
    Abstract: 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 hydrotreated in a hydrotreating reaction zone. Heat exchange occurs between the hydrocracking reaction zone and the hydrotreating reaction zone, permitting the temperature control of the initial hydrocracking zone. The integrated reaction system provides a single hydrogen supply and recirculation system for use in two reaction processes.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: March 9, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: Dennis R. Cash, Arthur J. Dahlberg
  • Publication number: 20040033908
    Abstract: The present invention relates to a fully formulated lubicants comprising poly &agr;-olefins (PAOs), prepared from a mixed &agr;-olefin feed, which exhibit superior Noack volatility at low pour points, and methods for preparing the fully formulated lubricants. The fully formulated lubricants include PAOs that include mixtures of 1-decene and 1-dodecene. The PAOs may be prepared by polymerization/oligomerization using an alcohol promoted BF3 in conjunction with a combination of co-catalysts.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 19, 2004
    Inventors: Douglas E. Deckman, Mark D. Winemiller, William L. Maxwell, David J. Baillargeon, Norman Yang, Maria Caridad B. Goze
  • Patent number: 6630066
    Abstract: 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 more reaction zones). Hydrocracking is preferably performed in the initial reactor, and hydrotreating (and/or further hydrocracking) is preferably performed in the subsequent reactor vessel or stages within a single vessel. Reaction stages are effectively segregated to avoid recracking of products, to dramatically reduce hydrogen consumption in saturating the bottoms product and to carry out aromatic saturation of middle distillates in a clean low-temperature environment.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: October 7, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: Dennis R. Cash, Arthur J. Dahlberg
  • Patent number: 6623624
    Abstract: 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 reaction stage. This invention is intended to provide a full range of lube streams, over a wide viscosity range and a wide viscosity index range, from a fuels hydrocracker, in addition to high yields of high quality fuels.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: September 23, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: Dennis R. Cash, Paul D. Cambern
  • Publication number: 20030149318
    Abstract: Process to prepare a water-white lubricating base oil having a saturates content of more than 90 wt %, a sulphur content of less than 0.03 wt % and a viscosity index of between 80-120 by subjecting a non-water-white hydrocarbon feed having a lower saturates content than the desired saturates content to a hydrogenation step, the hydrogenation step comprising contacting the feed with hydrogen in the presence of a hydrogenation catalyst, wherein the contacting is performed in two steps: (a) contacting the hydrocarbon feed with hydrogen in the presence of a hydrogenation catalyst at a temperature of above 300° C. and at a WSHV of between 0.3 and 2 kg of oil per litre of catalyst per hour, and (b) contacting the intermediate product obtained in step (a) with hydrogen in the presence of a hydrogenation catalyst at a temperature of below 280° C.
    Type: Application
    Filed: January 17, 2003
    Publication date: August 7, 2003
    Inventors: Gerard Benard, Patrick Moureaux
  • Patent number: 6524994
    Abstract: 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 promoter together, the catalyst having an nickel surface area, as defined herein, of at least 10 m2/g catalyst and an average pore diameter, as defined herein, of 10 to 60 nm. It has been found that already very small amounts of promoter improves the structure of the catalyst. High amounts still provide a stable, sinter resistant material, but result in a decrease in the pore size to lower levels. Furthermore, properties and sulfur uptake capacity.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: February 25, 2003
    Assignee: Engelhard Corporation
    Inventors: Bernard Hendrik Reesink, Nico van Gasteren
  • Patent number: 6508931
    Abstract: 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 pumps as the feed system. The feed system for hydrogen uses a high-pressure compressor to compress hydrogen from a hydrogen tank to a storage tank, then a mass flow controller is used to steadily feed the hydrogen. A static mixer mounted in line, upstream from the inlet of the reactor mixes the reactant well. Several thermocouples are connected to the reactor, inlet and outlet of said reactor to measure the temperatures of the reaction. The detected data from the thermocouples are transferred to a six-point thermograph. The pressure of the reaction is maintained by a back pressure regulator that is mounted downstream from the outlet of said reactor. After the hydrogenation reaction is complete, the pressure of the fluid in the outlet of the reactor is reduced.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: January 21, 2003
    Assignee: Chinese Petroleum Corporation
    Inventors: Wen-Fa Lin, Jen-Min Chen, Jun-Yi Chen, Kuang-Hua Tsai
  • Publication number: 20020179493
    Abstract: A premium “fuel-grade” petroleum coke is produced by modifying petroleum coking technology. Coking process parameters are controlled to consistently produce petroleum coke within a predetermined range for volatile combustible material (VCM) content. The invention includes a process of producing a coke fuel, the method comprising steps: (a) obtaining a coke precursor material derived from crude oil and having a volatile organic component; and (b) subjecting the coke precursor material to a thermal cracking process for sufficient time and at sufficient temperature and under sufficient pressure so as to produce a coke product having volatile combustible materials (VCMs) present in an amount in the range of from about 13% to about 50% by weight. Most preferably, the volatile combustible materials in the coke product typically may be in the range of from about 15% to about 30% by weight.
    Type: Application
    Filed: December 20, 2001
    Publication date: December 5, 2002
    Applicant: Environmental & Energy Enterprises, LLC
    Inventor: Roger G. Etter
  • Patent number: 6485631
    Abstract: 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 series, in liquid state where it under pressure and intense agitation at a given temperature is thermally upgraded by increasing API, and that the product is discharged in liquid state, and whereby the agitation is effected by whipping elements, optionally made of a catalytic material acting as a catalyst in upgrading the oil in the reactor.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: November 26, 2002
    Assignee: Ellycrack AS
    Inventor: Olav Ellingsen
  • Patent number: 6436279
    Abstract: 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 reactor kinetics and approach plug flow reactor process performance. Further, the invention allows for the production of a uniform product quality and production output that does not substantially vary with time.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: August 20, 2002
    Assignee: Axens North America, Inc.
    Inventor: James J. Colyar
  • Patent number: 6428686
    Abstract: 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 to the oil feed. The type and amount of diluent added, as well as the reactor conditions, can be set so that all of the hydrogen required in the hydroprocessing reactions is available in solution. The oil/diluent/hydrogen solution can then be fed to a plug flow reactor packed with catalyst where the oil and hydrogen react. No additional hydrogen is required, therefore, hydrogen recirculation is avoided and trickle bed operation of the reactors is avoided. Therefore, the large trickle bed reactors can be replaced by much smaller tubular reactor.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: August 6, 2002
    Assignee: Process Dynamics, Inc.
    Inventors: Michael D. Ackerson, Michael S. Byars
  • Patent number: 6425998
    Abstract: 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 contact with liquid metal. A vacuum chamber in fluid communication with the hollow nickel membrane probe through which hydrogen permeates, wherein the vacuum chamber is initially evacuated to a vacuum pressure and is in equilibrium with the vacuum chamber. The hydrogen sensor is useful for measuring the partial pressure of the hydrogen in the liquid metal to provide advisory control for the removal of hydrogen from the liquid metal exchange loop to avoid the problem of metal hydride formation and associated plugging problems.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: July 30, 2002
    Assignee: UOP LLC
    Inventor: Donald Cholewa
  • Patent number: 6399845
    Abstract: 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 temperature and pressure with a catalyst comprising in combination platinum (Pt) and palladium (Pd) each in metallic form supported on an acidic amorphous alumina or molecular sieve, and isomerised hydrocarbons preprared by the process.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 4, 2002
    Assignee: Fortum Oil & Gas Oy
    Inventors: Pirkko Raulo, Outi Piirainen, Juha-Pekka Aalto
  • Publication number: 20020062055
    Abstract: A process for producing a middle distillate suitable for example as a diesel fuel, with improved low temperature properties and a low content of aromatic compounds, from a hydrocarbon feed as the starting material by contacting the feed material in a single reaction step, in the presence of hydrogen, and at an elevated temperature and pressure, with a bifunctional catalyst containing a hydrogenating metal component in addition to a molecular sieve and a carrier for the simultaneous removal of aromatics and isomerization of paraffins. The molecular sieve is preferably an aluminosilicate, or a silicoaluminophosphate, the catalyst comprising as the hydrogenating/dehydrogenating component a metal from the group VI or VIII of the periodic table of the elements.
    Type: Application
    Filed: November 23, 1999
    Publication date: May 23, 2002
    Inventors: PIRKKO RAULO, OUTI PIIRAINEN, JUHA-PEKKA AALTO
  • Publication number: 20020052532
    Abstract: A continuous catalytic hydrogenation process, in which a reaction mixture containing the substance to be hydrogenated, the hydrogenation product, hydrogen and the hydrogenation catalyst suspended in the reaction mixture is recirculated in a reactor. Part of the hydrogenation product is removed from the reactor and the substance to be hydrogenated and hydrogen are fed into the reaction. In this process the substance to be hydrogenated and the hydrogen are mixed before entering the reactor. A venturi nozzle is particularly suitable as the mixing device.
    Type: Application
    Filed: October 19, 2001
    Publication date: May 2, 2002
    Inventors: Peter Korl, Bernhard Maurer
  • Patent number: 6329561
    Abstract: 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 and pressure to hydrocarbon and water and recovering the purified diisobutylene or isooctane stream.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: December 11, 2001
    Assignee: Equistar Chemicals, LP
    Inventors: Kenneth M. Webber, Mark P. Kaminsky, Andrew P. Kahn
  • Publication number: 20010042699
    Abstract: 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 more reaction zones). Hydrocracking is preferably performed in the initial reactor, and hydrotreating (and/or further hydrocracking) is preferably performed in the subsequent reactor vessel or stages within a single vessel. Reaction stages are effectively segregated to avoid recracking of products, to dramatically reduce hydrogen consumption in saturating the bottoms product and to carry out aromatic saturation of middle distillates in a clean low-temperature environment.
    Type: Application
    Filed: March 14, 2001
    Publication date: November 22, 2001
    Inventors: Dennis R. Cash, Arthur J. Dahlberg