With Solid Catalyst Or Absorbent Patents (Class 208/213)
  • Patent number: 7501549
    Abstract: An integrated process for the isolation of benzene contained within a fluid catalytically cracked naphtha is disclosed wherein a C6 fraction containing a benzene concentrate is subjected to etherification with alcohol (e.g. methanol and/or ethanol) to convert the C6 isoolefins to ethers which are separated by fractional distillation. If desired the ethers may be dissociated to the isoolefins and alcohol. The remaining material in the benzene concentrate may then be treated to remove olefins and organic sulfur compounds so that the benzene may be removed by solvent extraction. Alternatively the benzene in the remaining material may be subjected to hydrogenation.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: March 10, 2009
    Assignee: Catalytic Distillation Technologies
    Inventors: Gary G. Podrebarac, Richard Foley
  • Publication number: 20090050534
    Abstract: Disclosed is a process for removing organic sulfur from more than one reactive fuel gas stream. A reactor vessel that is provided with at least one bed of hydrodesulfurization catalyst is used to hydrodesulfurize multiple reactive fuel gas streams with a less reactive fuel gas stream being introduced into the reactor vessel at a point above the introduction point of a more reactive fuel gas stream. An hydrotreated fuel gas is yielded from the reactor vessel having a hydrogen sulfide concentration and a low organic sulfur content.
    Type: Application
    Filed: May 23, 2008
    Publication date: February 26, 2009
    Inventor: Gary Lee RIPPERGER
  • Patent number: 7476309
    Abstract: The present invention pertains to a method for hydroprocessing a heavy hydrocarbon oil, comprising bringing a heavy hydrocarbon oil into contact with hydroprocessing catalyst I in the presence of hydrogen in a first stage, after which the effluent of the first stage is contacted in whole or in part with hydroprocessing catalyst II in the presence of hydrogen in a second stage. The method according to the invention combines efficient contaminant removal with high cracking rate and low sediment formation. The invention also pertains to the combination of catalysts.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: January 13, 2009
    Assignee: Albemarle Netherlands B.V.
    Inventors: Satoshi Abe, Katsuhisa Fujita
  • Patent number: 7455762
    Abstract: 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.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: November 25, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Chuansheng Bai, Gary B. McVicker, Stuart S. Shih, Michael C. Kerby, Edward A. Lemon, Jr.
  • Patent number: 7449103
    Abstract: An ebullated bed hydroprocessing system, and also a method for upgrading a pre-existing ebullated bed hydroprocessing system, involves introducing a colloidal or molecular catalyst, or a precursor composition capable of forming the colloidal or molecular catalyst, into an ebullated bed reactor. The colloidal or molecular catalyst is formed by intimately mixing a catalyst precursor composition into a heavy oil feedstock and raising the temperature of the feedstock to above the decomposition temperature of the precursor composition to form the colloidal or molecular catalyst in situ. The improved ebullated bed hydroprocessing system includes at least one ebullated bed reactor that employs both a porous supported catalyst and the colloidal or molecular catalyst to catalyze hydroprocessing reactions involving the feedstock and hydrogen. The colloidal or molecular catalyst provides catalyst in what would otherwise constitute catalyst free zones within the ebullated bed hydroprocessing system.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 11, 2008
    Assignee: Headwaters Heavy Oil, LLC
    Inventors: Roger K. Lott, Lap-Keung Lee
  • Patent number: 7445702
    Abstract: Propane and/or butanes are separated from a hydrocarbon feedstock contaminated with alkyl mercaptans by fractional distillation at such a pressure that the separated overheads stream containing said propane and/or butanes is at a temperature in the range 50 to 100° C. Sufficient oxygen is introduced into the hydrocarbon feedstock to oxidise the mercaptans therein and the resultant mixture is subjected to the fractional distillation in a column including at least one bed of a catalyst capable, under the prevailing conditions, of oxidising the mercaptans to higher boiling point sulphur compounds. These higher boiling point sulphur compounds are separated as part of the liquid phase from the distillation.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: November 4, 2008
    Assignee: Johnson Matthey PLC
    Inventor: Peter Edward James Abbott
  • Patent number: 7438798
    Abstract: A method and product for removing sulfur compound molecules from gasoline or diesel fuel includes exposing the gasoline or diesel fuel to a plurality of molecularly imprinted polymer beads (MIPS) that have receptor sites on the surfaces thereof that include imprints that match the physical shape of at least a portion of a sulfur compound molecule. A quantity of the sulfur molecules align with and adhere to some of the receptor sites and, accordingly, they are removed from the gasoline or diesel fuel producing a remediated or sweetened gasoline or diesel fuel. According to one embodiment, the MIPS are contained in an enclosure having a plurality of openings large enough to permit the solution to pass through and small enough so as to prevent the MIPS from passing through. According to another embodiment the MIPS are applied (i.e., coated) to the inside surface of a conduit and the gasoline or diesel fuel is forced or allowed to flow through the conduit thereby removing some of the sulfur molecules therefrom.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: October 21, 2008
    Inventor: Anna Madeleine Leone
  • Patent number: 7435330
    Abstract: A heavy oil reforming method which reforms a heavy oil to give a fuel suitable for a gas turbine, eliminates sulfur and vanadium, i.e., harmful components, from a heavy oil, and enables almost all the hydrocarbons in the heavy oil to be used in gas turbine combustion; an apparatus therefor; and a gas turbine power generation system using the reformed heavy oil as fuel is disclosed. The method includes reacting a heavy oil with supercritical water and then with a scavenger for sulfur and vanadium to eliminate sulfur and vanadium from the heavy oil.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: October 14, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Atsushi Morihara, Hiromi Koizumi
  • Patent number: 7435336
    Abstract: 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 catalyst includes two or more catalyst layers, with the difference of voidage between the adjacent catalyst layers being at least 0.05. The voidages of the catalyst layers can be increased or decreased in the direction of the flow of the liquid phase. The process of the invention can be effected with an increased range of gas-liquid ratio and an improved stability and flexibility.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: October 14, 2008
    Assignees: China Petroleum & Chenical Corporation, Fushun Research Institute of Petroleum and Petrochemicals Sinopec, Corp.
    Inventors: Baoping Han, Xiangchen Fang, Ronghui Zeng, Ping Wu, Mei Jin, Hongjiang Sun
  • Patent number: 7435337
    Abstract: The invention describes the application of caesium-exchanged X, Y or LSX type faujasite zeolites for intense desulphurization of FCC gasoline, and to a method for preparing said zeolites.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: October 14, 2008
    Assignee: Institut Francais du Petrole
    Inventors: Michel Thomas, Alexandre Nicolaos
  • Patent number: 7431825
    Abstract: The present invention describes novel methods for reducing sulfur in gasoline with hydrotalcite like compound additives, calcined hydrotalcite like compounds, and/or mixed metal oxide solution solutions. The additives can optionally further comprise one or more metallic oxidants and/or supports. The invention is also directed to methods for reducing gasoline sulfur comprising contacting a catalytic cracking feedstock with a mixed metal oxide compound comprising magnesium and aluminum and having an X-ray diffraction pattern displaying a reflection at least at a two theta peak position at about 43 degrees and about 62 degrees, wherein the ratio of magnesium to aluminum in the compound is from about 1:1 to about 10:1.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: October 7, 2008
    Assignee: Intercat, Inc.
    Inventors: Albert A. Vierheilig, Bruce Keener
  • Patent number: 7431827
    Abstract: A process for the production of low sulfur, low olefin gasoline wherein a cracked naphtha, such as a full boiling range cracked naphtha, is first separated by fractional distillation into at least two fractions while simultaneously selectively hydrogenating the polyunsaturated compounds contained therein. The mono olefins in the light fraction are then subjected to etherification with alcohol to produce ethers or hydration with water to produce alcohols. The heavy fraction is subjected to sulfur removal by hydrodesulfurization or chemisorption. The two fractions are then combined to produce a low sulfur, low olefin gasoline.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: October 7, 2008
    Assignee: Catalytic Distillation Technologies
    Inventors: Kerry L. Rock, Yi-Gang Xiong, Arvids Judzis, Jr.
  • Patent number: 7431822
    Abstract: Applicants have developed a new residuum full hydroconversion slurry reactor system that allows the catalyst, unconverted oil, hydrogen, and converted oil to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixture is separated internally, within one of more of the reactors, to separate only the converted oil and hydrogen into a vapor product while permitting the unconverted oil and the slurry catalyst to continue on into the next sequential reactor as a liquid product. A portion of the unconverted oil is then converted to lower boiling point hydrocarbons in the next reactor, once again creating a mixture of unconverted oil, hydrogen, converted oil, and slurry catalyst. Further hydroprocessing may occur in additional reactors, fully converting the oil. The oil may alternately be partially converted, leaving a concentrated catalyst in unconverted oil which can be recycled directly to the first reactor.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: October 7, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Darush Farshid, James Murphy, Bruce Reynolds
  • Patent number: 7431824
    Abstract: The instant invention is directed to a process employing slurry catalyst compositions in the upgrading of heavy oils. The slurry catalyst composition is not permitted to settle, which would result in possible deactivation. The slurry is recycled to an upgrading reactor for repeated use and products require no further separation procedures for catalyst removal.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: October 7, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Kaidong Chen, Julie Chabot
  • Patent number: 7431823
    Abstract: The instant invention is directed to a new residuum full hydroconversion slurry reactor system that allows the catalyst, unconverted oil and converted oil to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixture is partially separated in between the reactors to remove only the products and hydrogen, while permitting the unconverted oil and the slurry catalyst to continue on into the next sequential reactor where a portion of the unconverted oil is converted to lower boiling point hydrocarbons, once again creating a mixture of unconverted oil, converted oil, and slurry catalyst. Further hydroprocessing may occur in additional reactors, fully converting the oil. The oil may alternately be partially converted, leaving a highly concentrated catalyst in unconverted oil which can be recycled directly to the first reactor.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: October 7, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Darush Farshid, Bruce Reynolds
  • Patent number: 7431831
    Abstract: A new residuum full hydroconversion slurry reactor system has been developed that allows the catalyst, unconverted oil, products and hydrogen to circulate in a continuous mixture throughout an entire reactor with no confinement of the mixture. The mixture is partially separated in between the reactors to remove only the products and hydrogen while permitting the unconverted oil and the slurry catalyst to continue on into the next sequential reactor. In the next reactor, a portion of the unconverted oil is converted to lower boiling point hydrocarbons, once again creating a mixture of unconverted oil, products, hydrogen and slurry catalyst. Further hydroprocessing may occur in additional reactors, fully converting the oil. The oil may alternately be partially converted, leaving a highly concentrated catalyst in unconverted oil which can be recycled directly to the first reactor. The slurry reactor system is, in this invention, preceded by an in-line pretreating step, such as hydrotreating or deasphalting.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: October 7, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Darush Farshid, Bruce Reynolds
  • Patent number: 7431828
    Abstract: A two-stage hydrotreating process is disclosed wherein a hydrocarbon stream is first desulphurized followed by a dehydrogenation step, which process comprises in combination contacting the feed and hydrogen over a hydrotreating catalyst at hydrotreating conditions, heating the hydrotreated effluent and hydrogen-rich gas from the hydrotreating reactor and contacting said effluent and hydrogen gas over a hydrotreating catalyst in a post-treatment reactor at a temperature sufficient to increase the polyaromatic hydrocarbon content and lower the hydrogen content of said effluent.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: October 7, 2008
    Assignee: Haldor Topsoe A/S
    Inventors: Michael G. Hunter, Rasmus G. Egeberg, Kim G. Knudsen
  • Patent number: 7422679
    Abstract: 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 particularly useful for selectively desulfurizing an olefin-containing naphtha without octane loss due to olefin saturation by hydrogenation. The COX reduction is achieved by removing COX from the treat gas before it is passed into the reaction zone.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: September 9, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Edward S. Ellis, Thomas R. Halbert, Garland B. Brignac, John P. Greeley, Richard A. Demmin, Theresa A. Lalain
  • Patent number: 7419582
    Abstract: A hydrocracking process wherein the feedstock is hydrotreated and the liquid and gaseous effluent from the hydrotreater is directly introduced into the upper end of a hydrocracking vessel which provides a liquid seal to prevent the passage of the gaseous stream containing hydrogen sulfide and ammonia from the hydrotreater to enter the hydrocracking zone containing hydrocracking catalyst. Fresh hydrogen is then introduced into the hydrocracking zone. An apparatus for hydrocracking a hydrocarbon feedstock is also disclosed.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: September 2, 2008
    Assignee: UOP LLC
    Inventors: Richard K. Hoehn, Vasant P. Thakkar, Vedula K. Murty, Douglas W. Kocher-Cowan, Jennifer L. Anderson
  • Patent number: 7419586
    Abstract: 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 from this first stage is sent to a separation zone wherein a lower boiling naphtha stream and a higher boiling naphtha stream are produced. The lower boiling naphtha stream is sent through at least two more separation zones, each at a lower temperature than the preceding separation stage. The higher boiling naphtha stream, which contains most of the sulfur moieties, is passed to a second hydrodesulfurization stage wherein at least a fraction of the sulfur moieties are removed.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: September 2, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Edward S. Ellis, John P. Greeley, Vasant Patel, Murali V. Ariyapadi
  • Patent number: 7419585
    Abstract: A process for upgrading a residua feedstock using a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. The residua feedstock is preferably atomized so that the Sauter mean diameter of the residua feedstock entering the reactor is less than about 2500 ?m. One or more horizontally disposed screws is preferably used to fluidize a bed of hot particles.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: September 2, 2008
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Peter S. Maa, Craig Y. Sabottke
  • Patent number: 7416653
    Abstract: Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The crude product is a liquid mixture at 25° C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed. In some embodiments, gas is produced during contact with one or more catalysts and the crude feed.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: August 26, 2008
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Thomas Fairchild Brownscombe, Stanley Nemec Milam
  • Publication number: 20080173571
    Abstract: The desulfurization of fossil fuels is effected by the combination of fossil fuels with an aqueous mixture of hydroperoxide and quaternary ammonium fluoride phase transfer catalyst, the mixture then subjected to ultrasound to oxidize sulfur compounds present in the fuels. The polar oxidized species are removed via extraction. Another aspect is a portable, continuous ultrasound assisted desulfurization device having a sonoreactor for subjecting mixtures of fossil fuels to sonication to effect removal of sulfur containing compounds.
    Type: Application
    Filed: September 13, 2007
    Publication date: July 24, 2008
    Inventors: Teh-Fu Yen, Meng-Wei Wan
  • Patent number: 7399402
    Abstract: 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 hydrocarbon-based compounds and in that the catalyst comprises at least one transition metal supported on at least one refractory oxide.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: July 15, 2008
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Catherine Olivier, Walter Vermeiren, Jean-Pierre Dath
  • Patent number: 7384540
    Abstract: A process for hydrotreating a hydrocarbon feed comprises at least two steps with intermediate stripping of the effluent from the first step with pressurized hydrogen substantially free of impurities which are undesirable for the catalyst for the second step, in particular to eliminate part of the H2S formed, each step being carried out with a hydrogen recycle loop that is exclusive to that step.
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: June 10, 2008
    Assignee: Institut Francais du Petrole
    Inventor: Renaud Galeazzi
  • Patent number: 7384542
    Abstract: A process for the production of low sulfur diesel and high octane naphtha.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: June 10, 2008
    Assignee: UOP LLC
    Inventors: Vasant P. Thakkar, Richard K. Hoehn
  • Patent number: 7381322
    Abstract: This invention provides a resid cracking apparatus comprising a riser, reactor, stripper cum separator with adjustable outlets in flow communication with adsorbent and catalyst regenerators for converting hydrocarbon residues containing higher concentration of conradson carbon content, poisonous metals such as nickel & vanadium and basic nitrogen etc., into lighter and valuable products and a process thereof.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 3, 2008
    Assignee: Indian Oil Corporation Limited
    Inventors: Kasliwal Pankaj, Rama Rao Marri, Dixit Jagdev Kumar, Saroya Latoor Lal, Sukumar Mandal, Satish Makhija, Sobhan Ghosh
  • Publication number: 20080116113
    Abstract: A system which circulates fluidizable solid particles through a fluidized bed reactor, a fluidized bed regenerator, and a fluidized bed reducer to thereby provide for substantially continuous desulfurization of a hydrocarbon-containing fluid stream and substantially continuous regeneration of the solid particles is disclosed.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 22, 2008
    Inventors: Victor G. Hoover, Daniel T. Fernald, Gwen J. DeBrower
  • Publication number: 20080116114
    Abstract: Process for the catalytic hydrotreating of a hydrocarbon feed stock containing silicon compounds comprising the steps of contacting the feed stock in presence of hydrogen with a first hydrotreating catalyst being arranged in at least two reactors being connected in series at an outlet temperature of up to 410° C. to reduce content of the silicon compounds in the feed stock; cooling of the feed stock such treated to a temperature of between 280° and 350° C.; and contacting the cooled feed stock with a second hydrotreating catalyst at conditions being effective in reduction of sulphur compound and nitrogen compound concentration.
    Type: Application
    Filed: October 23, 2007
    Publication date: May 22, 2008
    Inventors: Rasmus Breivik, Kim Gron Knudsen
  • Patent number: 7371318
    Abstract: The invention relates to a process for the elimination of sulphur compounds from the diesel fraction, which is characterized in that an oxidising reaction of said sulphur compound is carried out by using at least an organic-inorganic composite as catalyst, said composite comprising Si, Ti; and silicon bonded to carbon, and organic and inorganic hydroperoxides as oxidizing agents. According to the inventive process, said organic-inorganic composite can be obtained by a method comprising a post-synthesis silylation step.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: May 13, 2008
    Assignees: Consejo Superior De Investigaciones Cientificas, Universidad Politecnica De Valencia
    Inventors: Avelino Corma Canós, Marcelo Eduardo Domine, Cristina Martinez Sánchez
  • Patent number: 7361265
    Abstract: A process for the hydrodesulfurization of cracked olefin streams is described, the process aiming at reducing the sulfur content while at the same time minimizing the hydrogenation degree of said olefins. In order to dilute the added reaction hydrogen, the process makes use of non-reactive compounds such as N2, CH4, C2H6, C3H8, C4H10, Group VIII noble gases as well as admixtures of same in any amount, in gas or vapor phase.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: April 22, 2008
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Rafael M. de Almeida, Jefferson Roberto Gomes
  • Patent number: 7361266
    Abstract: The present invention is related to a method of subjecting a feed oil to a refining process. This method includes a fractional distillation step 1 in which a feed oil is separated into a distillate oil M1 and a bottom oil M2 by a distillation process, a separation step in which the bottom oil is separated into a bottom light oil and a residue, and a hydrorefining step 3 in which the obtained distillate oil M1 and the bottom oil M2 are subjected to hydrorefining in the presence of hydrogen and a catalyst. In the hydrorefining step 3, the bottom light oil (deasphalted oil M3) is passed through a first catalyst layer 12 of a hydrorefining unit providing a plurality of catalyst layers 12, 13, and 13 filled with a hydrorefining catalyst, and a mixed oil comprising the distillate oil M1 and the bottom light oil (deasphalted oil M3) is passed through a downstream catalyst layer 13 and subject to a hydrogenation process.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: April 22, 2008
    Assignee: JGC Corporation
    Inventors: Makoto Inomata, Tsuyoshi Okada, Kozo Imura, Hajime Sasaki
  • Patent number: 7347931
    Abstract: 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 refractory oxides, at least one metal that is selected from the group that consists of the metals of groups VI and VII of the periodic table and carbon, whereby the carbon content is less than or equal to 2.8% by weight. The invention also relates to a method for the production of the catalyst that is described above, as well as a process that uses this catalyst for the selective hydrodesulfurization of hydrocarbon-containing feedstocks that contain sulfur-containing compounds and olefins.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: March 25, 2008
    Assignee: Institut Francais du Petrole
    Inventors: Denis Uzio, Nathalie Marchal-George, Christophe Bouchy, Florent Picard
  • Publication number: 20080011649
    Abstract: Increased selectivity of middle distillate and/or increased catalyst activity are obtained in a hydrocracking process by the use of a catalyst containing a beta zeolite and a Y zeolite having a unit cell size of 24.33 to 24.38 angstrom. The catalyst may also contain an additional Y zeolite having a unit cell size of from 24.25 to 24.32 angstrom.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 17, 2008
    Inventor: Li Wang
  • Publication number: 20080011648
    Abstract: Increased selectivity of middle distillate and increased catalyst activity are obtained in a hydrocracking process by the use of a catalyst containing a hydrogenation component, a beta zeolite having an overall silica to alumina mole ratio of less than 30 and a SF6 adsorption capacity of at least 28 wt-%, a Y zeolite having a unit cell size of from 24.25 to 24.32 angstrom, and a support.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 17, 2008
    Inventor: Li Wang
  • Publication number: 20080011647
    Abstract: Increased selectivity of middle distillate and/or increased catalyst activity are obtained in a hydrocracking process by the use of a catalyst containing a beta zeolite and a Y zeolite having a unit cell size of from 24.25 to 24.32 angstrom. The catalyst may also contain an additional Y zeolite having a unit cell size of from 24.33 to 24.38 angstrom.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 17, 2008
    Inventor: Li Wang
  • Patent number: 7318845
    Abstract: A distillate fuel steam reformer system in which a fuel feed stream is first separated into two process streams: an aliphatics-rich, sulfur-depleted gas stream, and an aromatics- and sulfur-rich liquid residue stream. The aliphatics-rich gas stream is desulfurized, mixed with steam, and converted in a reforming reactor to a hydrogen-rich product stream. The aromatics-rich residue stream is mixed with air and combusted to provide heat necessary for endothermic process operations. Reducing the amounts of sulfur and aromatic hydrocarbons directed to desulfurzation and reforming operations minimizes the size and weight of the overall apparatus. The process of the invention is well suited to the use of microchannel apparatuses for heat exchangers, reactors, and other system components, which may be assembled in slab configuration, further reducing system size and weight.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: January 15, 2008
    Assignee: Applied Research Associates, Inc.
    Inventors: Aly H. Shaaban, Timothy J. Campbell
  • Patent number: 7314602
    Abstract: Contact, mixing, and often quenching box (8), with main dimension (D) and height (H7), comprising at least one duct section (B1) located on the upper part of said box (8) for entry of fluids in which said box (8) comprises, downstream from said duct section (B1), in the direction in which the fluids circulate, a means (B4) that provides, in said box (8), for making the fluids swirl in an approximately nonradial direction, and not parallel to the overall direction of circulation of said fluids, and comprising at least one annular, peripheral duct section (B6) for the exit of said mixture of fluids formed in said box (8) whose lower level is located above the upper level for fluid entry through at least one lateral inlet (B3) located in said box (8) above means (B4). A reaction cell (4), of an elongated shape along an approximately vertical axis comprising the contact, mixing, and quenching box (8) is useful for performing exothermic reactions.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: January 1, 2008
    Assignee: Institut Francais du Petrole
    Inventors: Ludovic Raynal, Isabelle Harter, Francis Aubry
  • Patent number: 7306714
    Abstract: 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 density of the group VIB elements per unit surface area of the support is in the range 4×10?4 to 36×10?4 g of group VIB element oxides per m2 of the support.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: December 11, 2007
    Assignee: Institut Francais du Petrole
    Inventors: Denis Uzio, Stephane Cremer, Carine Petit-Clair, Nathalie Marchal-George, Christophe Bouchy, Florent Picard
  • Patent number: 7300567
    Abstract: Process for the removal of coloured compounds in a hydrocarbon feedstock comprising the steps of hydrotreating the feedstock in presence of a first hydrotreating catalyst under conditions being effective in hydrogenation of hydrogenable compounds being present in the feedstock and hydrotreating an effluent from the first hydrotreating step in a second catalytic hydrotreating step being carried out in a second hydrotreating reactor at hydrotreating conditions, wherein the effluent from the first hydrotreating step is separated into a gas phase and a mixed gas and liquid phase prior to the second hydrotreating step, and the mixed phase is hydrotreated in the second hydrotreating step without further addition of hydrogen.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: November 27, 2007
    Assignee: Haldor Topsoe A/S
    Inventors: Rasmus Breivik, Johan Mogensen, Kim Grøn Knudsen, Johannes Wrisberg, Bent Sarup
  • Patent number: 7297252
    Abstract: 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.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: November 20, 2007
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Craig A. McKnight, Gregory J. Troxclair
  • Patent number: 7297251
    Abstract: 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 hydrodesulfurization catalyst, then passing the resulting product stream through a second reaction zone containing a bed of a second hydrodesulfurization catalyst, which second hydrodesulfurization catalyst contains a lower level of catalytic metals than the first hydrodesulfurization catalyst.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: November 20, 2007
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Edward S. Ellis, Richard A. Demmin, John P. Greeley, Gary B. McVicker, Bruce R. Cook, Garland B. Brignac, Thomas R. Halbert
  • Patent number: 7297249
    Abstract: A fixed-bed reactor is described for carrying out reactions of fluid reaction mixtures in the presence of a particulate heterogeneous catalyst having a structured packing which forms interstices in the reactor interior, in which the quotient of the hydraulic diameter for the fluid flow through the structured packing and the equivalent diameter of the catalyst particles is in the range from 2 to 20, preferably in the range from 5 to 10, to such an extent that the catalyst particles are introduced into the interstices, loosely distributed and discharged under the action of gravity.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: November 20, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Kaibel, Christian Miller, Helmut Jansen, Björn Kaibel
  • Patent number: 7291258
    Abstract: A process for concurrently fractionating and hydrotreating a full range naphtha stream.
    Type: Grant
    Filed: November 12, 2005
    Date of Patent: November 6, 2007
    Assignee: Catalytic Distillation Technologies
    Inventors: Gary G. Podrebarac, Mario J. Maraschino, Montri Vichailak
  • Patent number: 7291257
    Abstract: A process where the need to circulate hydrogen through the catalyst is eliminated is provided. 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 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 may be 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: December 9, 2004
    Date of Patent: November 6, 2007
    Assignee: Process Dynamics, Inc.
    Inventors: Michael D. Ackerson, Michael Steven Byars
  • Patent number: 7264710
    Abstract: The reforming of heavy oil with supercritical water or subcritical water is accomplished by mixing together supercriticai water, heavy oil, and oxidizing agent, thereby oxidizing vanadium in heavy oil with the oxidizing agent at the time of treatment with supercritical water and separate vanadium oxide. The separated vanadium oxide is removed by the scavenger after treatment with supercritical water. In this way it is possible to solve the long-standing problem with corrosion of turbine blades by vanadium which arises when heavy oil is used as gas turbine fuel.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: September 4, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Hiromi Koizumi
  • Patent number: 7261809
    Abstract: A process for removing organic sulfur compounds from heavy boiling range naphtha in a dual purpose reactor wherein the heavy boiling range naphtha is fed downflow over a fixed bed of hydrodesulfurization zone and then treated with hydrogen in a hydrodesulfurization catalytic distillation zone. Vapor containing hydrogen sulfide is removed between the zones. Preferably the heavy boiling range naphtha is produced by treating a full boiling range naphtha to concurrently react diolefins and mercaptans and split the light and heavy boiling range naphtha in a distillation column reactor.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: August 28, 2007
    Assignee: Catalytic Distillation Technologies
    Inventor: Amarjit S. Bakshi
  • Patent number: 7247235
    Abstract: A process for the hydrogenation of a hydrocarbon feed includes contacting a major amount of the hydrocarbon feed with hydrogen in a counter-current manner in a first reaction zone under hydrogenation reaction conditions in the presence of a hydrogenation catalyst in at least a first catalyst bed wherein a liquid effluent exits at a bottom end of the first reaction zone and a hydrogen-containing gaseous effluent exits at a top end of the first reaction zone, and contacting a minor portion of the hydrocarbon feed with said hydrogen-containing gaseous effluent in a co-current manner in a second reaction zone having a catalyst bed positioned to receive the hydrogen-containing effluent of the first reaction zone.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: July 24, 2007
    Assignee: ABB Lummus Global Inc,
    Inventors: Harjeet Virdi, Arup Roy, Thu-Huong Nguyen
  • Patent number: 7244350
    Abstract: A process to continuously prepare a hydrocarbon product having a specified desired sulphur content lower than 0.05 wt %, starting from at least two or more high-sulphur hydrocarbon feedstocks having a sulphur content of above 0.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: July 17, 2007
    Assignee: Shell Oil Company
    Inventors: Bernard Martin, Jean-Luc Christian Rouby, Wouter Frederik Timmermans, Frederic Viel
  • Patent number: 7232515
    Abstract: 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 metal molybdate in which at least a portion but less than all of the molybdenum is replaced by tungsten.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: June 19, 2007
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Richard Alan Demmin, Kenneth Lloyd Riley, Stuart Leon Soled, Sabato Miseo