Patents Examined by Renee E Robinson
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Patent number: 8202413Abstract: A process for the preparation of hydrocarbon products including the steps of (a) providing a stream containing oxygenates; (b) mixing the stream with a recycle stream to form a gasoline feed stream; (c) contacting the gasoline feed stream with one or more gasoline synthesis catalysts to obtain an effluent stream with higher hydrocarbons boiling in the gasoline range; (d) withdrawing from step (c) the effluent stream; and (e) splitting a part of the effluent stream to form the recycle stream which is optionally further reduced in content of water or enriched in hydrogen, then pressurized and recycled to step (b).Type: GrantFiled: September 12, 2008Date of Patent: June 19, 2012Assignee: Haldor Topsoe A/SInventors: Finn Joensen, Bodil Voss, Niels Christian Schiødt
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Patent number: 8187456Abstract: An improved process for hydrocracking heavy petroleum feedstocks wherein hydrogen-containing streams associated with a hydrocracker are subjected to rapid cycle pressure swing adsorption having a cycle time of less than 30 S.Type: GrantFiled: January 23, 2006Date of Patent: May 29, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: John W. Viets, Narasimhan Sundaram, Bal K. Kaul, David L. Stern
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Patent number: 8182672Abstract: A process for preparing basestocks having superior low temperature properties at high viscosity index (VI). More particularly, a waxy feedstock is contacted with a first dewaxing catalyst having a refined constraint index (CI*) 2.0 or less followed by contacting with a second dewaxing catalyst having a refined constraint index greater than 2.0.Type: GrantFiled: December 16, 2008Date of Patent: May 22, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Michel Daage, David W. Larkin, William J. Murphy
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Patent number: 8177964Abstract: A process of delayed coking with modified feedstock is described maximising the volume of diesel oil and minimising the volume of coke produced by means of feedstock which comprises, in a first embodiment of the invention: the bottom product (8) of the vacuum distillation tower (6), known in the prior art as vacuum residuum, and a fraction (7?) of heavy vacuum gas oil (7) obtained in the aforesaid vacuum distillation. In a second embodiment of the present invention the bottom residuum (5) proceeding from the atmospheric distillation tower (2), known in the prior art as atmospheric residuum, is employed as feedstock of a Delayed Coking Unit (9).Type: GrantFiled: February 1, 2007Date of Patent: May 15, 2012Assignee: Petroleo Brasileiro S.A.—PetrobrasInventors: Gloria Maria Gomes Soares, Natalie Jorge Goncalves, Francisco Carlos Da Costa Barros, Sergio Cunha De Lucena, Aline Voigt Nadolni, Sergio Nunes Da Costa
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Patent number: 8152994Abstract: Systems and methods for processing one or more hydrocarbons are provided. One or more hydrocarbon feedstocks can be selectively separated to provide one or more light deasphalted oils. At least a portion of the light deasphalted oil can be hydrocracked to provide one or more hydrocarbon products.Type: GrantFiled: December 27, 2007Date of Patent: April 10, 2012Assignee: Kellogg Brown & Root LLCInventors: Anand Subramanian, Raymond Floyd, Odette Eng
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Patent number: 8152993Abstract: Methods are provided for decoking the radiant coils in an ethylene cracking plant. The decoking process is controlled by monitoring the coil outlet temperature to control the rate of burning of coke in the radiant coils. Air flow rates, steam flow rates and coil outlet temperatures are controlled during the decoking process to prevent tube damage, minimize decoking time and maximize coke removal.Type: GrantFiled: May 7, 2008Date of Patent: April 10, 2012Assignee: Lummus Technology Inc.Inventors: Stephen De Haan, Barbara Stancato, Brian K. Sullivan, Charles E. Nagy, Frank McCarthy
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Patent number: 8147682Abstract: A process and process line is provided for recovering heat in the form of cleaned warm water and residual bitumen from oil sand tailings produced during an oil sands extraction process. The process includes removing at least a portion of the coarse solids from the oil sand tailings to produce a reduced solids tailings fraction; separating at least a portion of the bitumen from the reduced solids tailings fraction to produce a bitumen fraction and a warm water and fines fraction; and removing at least a portion of the fines from the warm water and fines fraction to produce cleaned warm water and a concentrated fines fraction. The cleaned warm water can then be reused in the oil sands extraction process.Type: GrantFiled: October 31, 2006Date of Patent: April 3, 2012Assignee: Syncrude Canada Ltd.Inventors: Rick Lahaie, Simon Yuan, Jim Lorentz, Christian Matte, Kamal Hammad
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Patent number: 8148285Abstract: A catalytic composition for hydrotreating of hydrocarbons is made in which a metallic component for hydrogenation is carried on a carrier formed of zeolite Y with aluminum and titanium inserted therein and a porous inorganic oxide. The zeolite Y has: unit cell dimension in a range from 24.25 to 24.60 ?, crystallinity of 95% or more, specific surface area of 500 m2/g or more, total pore volume of a group of pores each having a diameter of 600 ? or below in a range from 0.45 to 0.70 ml/g, pore volume of a group of pores each having a diameter in a range from 100 to 600 ? in a range from 0.10 to 0.40 ml/g, and pore volume of a group of pores each having a diameter in a range from 35 to 50 ? in a range 0.03 to 0.15 ml/g.Type: GrantFiled: June 21, 2011Date of Patent: April 3, 2012Assignees: Petroleum Energy Center, JGC Catalysts and Chemicals Ltd.Inventors: Ryuzo Kuroda, Masaru Ushio
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Patent number: 8142648Abstract: Controlled RVP C5+ products are produced from feed gas in configurations and methods in which a heavier portion of the feed gas is fractionated into several streams having distinct RVP and in which a C5+ stream is produced from the lighter portion of the feed gas. The so formed streams are then combined to produce C5+ products with controlled RVP. Thus, RVP control is achieved without the need for external products for blending process streams derived from the feed gas.Type: GrantFiled: October 24, 2007Date of Patent: March 27, 2012Assignee: Fluor Technologies CorporationInventor: John Mak
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Patent number: 8142645Abstract: Hydrocarbons containing polynuclear aromatics, such as cycle oil and pyrolysis fuel oil (PFO), are upgraded using an catalyst complex that selectively cracks the polynuclear aromatic compounds to form higher value mono-aromatic compounds, such as benzene toluene, xylenes and ethyl benzene (i.e., BTX). The catalyst complexes include a catalytic metal center and a plurality of organic ligands. During the hydrocracking procedure, the organic ligand preserves one of the aromatic rings of the polynuclear aromatic compounds while the catalytic metal breaks the other aromatic rings thereby yielding a monoaromatic compound.Type: GrantFiled: January 3, 2008Date of Patent: March 27, 2012Assignee: Headwaters Technology Innovation, LLCInventors: Bing Zhou, Zhenhua Zhou, Zhihua Wu
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Patent number: 8137631Abstract: One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture.Type: GrantFiled: December 11, 2008Date of Patent: March 20, 2012Assignee: UOP LLCInventors: Paolo Palmas, Robert L. Mehlberg
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Patent number: 8137445Abstract: A method and apparatus for treating natural gas comprises a contactor having a manifold for spreading gas in the contactor vessel, a plurality of perforated plates above the manifold, a spray system for spraying a treating liquid into an upwardly rising column of gas and a liquid level controller for maintaining the treating liquid above the perforated plates. Gas and liquid from the contactor pass through a cooler and are then separated. A treating liquid regeneration system receives the treating liquid and flashes the liquid at low pressure to separate hydrocarbon gases, hydrocarbon liquid and treating liquid. The treating liquid is regenerated by heating and flashing off contaminant gases and is ultimately redelivered to the contactor.Type: GrantFiled: May 12, 2010Date of Patent: March 20, 2012Inventors: Edwin W. Cash, Thomas J. Bradley
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Patent number: 8137532Abstract: The invention concerns a process for producing middle distillates from a paraffinic feed produced by Fischer-Tropsch synthesis, using a hydrocracking/hydroisomerization catalyst which comprises 0.2% to 2.5% by weight of an oxide of a doping element selected from boron, phosphorus, silicon, at least one hydrodehydrogenating element selected from the group formed by noble elements from group VIII of the periodic table, a non-zeolitic support based on silica-alumina containing more than 5% by weight and 95% by weight or less of silica (SiO2), specifically defined pore characteristics, a BET specific surface area in the range 100 to 550 m2/g, and with an X ray diffraction diagram which contains at least the characteristic principal peaks of at least one of the transition aluminas included in the group composed of alpha, rho, khi, eta, gamma, kappa, theta and delta aluminas.Type: GrantFiled: December 14, 2006Date of Patent: March 20, 2012Assignee: IFP Energies NouvellesInventors: Patrick Euzen, Christophe Gueret
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Patent number: 8128807Abstract: This invention is directed to a process for fluid catalytic cracking, including, fluidizing a hydrocarbon stream in a riser, cracking the hydrocarbon stream with catalyst in the riser to produce a cracked stream and spent catalyst, separating the cracked stream and the spent catalyst in a primary separator to obtain a cracked stream with a first concentration of spent catalyst, and transporting the cracked stream with the first concentration of spent catalyst through a conduit to a multi-cyclone separator comprising multiple cyclones extending through a tube sheet to obtain a cracked stream with a second concentration of spent catalyst. The invention is also directed to an apparatus for catalytic cracking including a riser, a primary separator, a disengagement vessel surrounding the primary separator to collect the catalyst, a gas conduit having a first end in fluid connection with the disengagement vessel, and a multi-cyclone separator comprising a plurality of cyclones.Type: GrantFiled: March 31, 2010Date of Patent: March 6, 2012Assignee: UOP LLCInventors: Kelly D. Seibert, Todd P. Mitchell, Mindy B. Kuhn
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Patent number: 8114273Abstract: An improved hydrotreating process for removing sulfur from distillate boiling range feedstreams. This improved process utilizes a two stage hydrotreating process scheme, each stage associated with an acid gas removal zone wherein one of the stages utilizes a rapid cycle pressure swing adsorption zone to increase the concentration of hydrogen in the process.Type: GrantFiled: January 23, 2006Date of Patent: February 14, 2012Assignee: Exxonmobil Research and Engineering CompanyInventors: Benoit Touffait, Herve Innocenti, Jamil Zaari, Bal K. Kaul, Narasimhan Sundaram
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Patent number: 8110091Abstract: The invention relates to a process for the treatment of heavy petroleum feedstocks in order to produce a gas oil fraction having a sulphur content of less than 50 ppm and generally 10 ppm which comprises the following stages: e) mild hydrocracking in a catalyst fixed bed, f) separation of the hydrogen sulphide, of a distillate cut including a gas oil fraction and of a fraction which is heavier than the gas oil, g) hydrotreating, by contact with at least one catalyst, of at least a portion of the distillate cut obtained in stage b) including the gas oil fraction, as a mixture with a feedstock resulting from a crude or refined renewable source, h) separation of a gas oil cut comprising less than 50 ppm of sulphur. Advantageously, the heavy fraction is sent for catalytic cracking. Preferably, the process is carried out with makeup hydrogen introduced in stage c) and very advantageously all the makeup hydrogen for the process is introduced in stage c).Type: GrantFiled: December 21, 2007Date of Patent: February 7, 2012Assignee: IFP Energies NouvellesInventors: Thierry Chapus, Karin Marchand
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Patent number: 8105480Abstract: A process for treating a heavy oil which comprises subjecting a heavy oil to cavitation to reduce the viscosity of the heavy oil. The treated heavy oil, which has a reduced viscosity and specific gravity, thus is more pumpable and transportable, which facilitates further processing. The treated heavy oil also can be fractionated with less severity than untreated heavy oil.Type: GrantFiled: November 13, 2007Date of Patent: January 31, 2012Assignee: Fractal Systems, Inc.Inventors: Michel Chornet, Esteban Chornet
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Patent number: 8101066Abstract: An improved fluidized coking process wherein an effective amount of a basic material, preferably an alkali or alkaline-earth metal-containing compound, is added to the coking zone to mitigate agglomeration of the coke during the coking of a heavy hydrocarbonaceous feedstock to produce lower boiling products.Type: GrantFiled: November 27, 2007Date of Patent: January 24, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael Siskin, Simon R. Kelemen, Christopher P. Eppig
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Patent number: 8101067Abstract: Methods for obtaining bitumen from bituminous material. The methods may include a dissolution step where a first solvent is added to material comprising bitumen to dissolve the bitumen contained therein. The majority of the dissolved bitumen is then removed from the mixture of first solvent and material comprising bitumen by filtering or settling the mixture of first solvent and material comprising bitumen. Any residual dissolved bitumen is then removed from the mixture of first solvent and material comprising bitumen by adding additional first solvent to the mixture to displace the residual dissolved bitumen from the mixture.Type: GrantFiled: October 7, 2009Date of Patent: January 24, 2012Assignee: Marathon Oil Canada CorporationInventors: Willem P. C. Duyvesteyn, Julian Kift
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Patent number: 8092672Abstract: A method and apparatus for catalytic hydroconversion processing of less volatile carbonaceous material to volatile liquid products is disclosed. The process is carried out in a plug-flow reactor system using nanosize metallic catalyst particles dispersed in the reactant slurry with compressed hydrogen/hydrogen-sulfide at a temperature between about 275° C. and 525° C. at a pressure of between about 800 psi and 6000 psi and a residence time in the reactors between about 1 minute and 4 hours.Type: GrantFiled: April 11, 2008Date of Patent: January 10, 2012Assignee: Energy Catalysis IncorporatedInventors: Partha S. Ganguli, Alfred G. Comolli