Of Particular Physical Shape Or Structure Patents (Class 208/300)
  • Patent number: 9616419
    Abstract: The present invention is directed to an improved finished hydroisomerization catalyst manufactured from a first high nanopore volume (HNPV) alumina and a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 15 to 25 nm·g/cc, and a second HNPV alumina having a pore size distribution characterized by a full width at half-maximum, normalized to pore volume, of 5 to 15 nm·g/cc. Their combination yields a HNPV base extrudate having a low particle density as compared to a conventional base extrudates.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: April 11, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Yihua Zhang, Kamala Raghunathan Krishna, Guan-Dao Lei, Theodorus Ludovicus Michael Maesen
  • Patent number: 9039892
    Abstract: A catalyst comprising of nano nickel-silica catalyst for dewaxing of heavy petroleum feed at a temperature 200-350° C. at 8 bar and 30 bar hydrogen pressure and in the presence of hydrogen is designed for petrochemical industries. According to a specific aspect of the invention, the nano catalyst is designed and employed to convert heavy hydrocarbon feeds of high viscosity index to low pour point and good stability in a single step.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 26, 2015
    Inventors: Syed Tajammul Hussain, Mehmood Ahmed
  • Publication number: 20140291251
    Abstract: A hydrocarbon sequestering product, a method to obtain the product, and a method and a facility to sequester hydrocarbons, wherein the product comprises an oleophilic filamentous material that gets in contact with a medium contaminated by one or more hydrocarbons with the purpose of sequestrating the hydrocarbon(s) present in the medium to free it from said hydrocarbons.
    Type: Application
    Filed: October 28, 2013
    Publication date: October 2, 2014
    Inventor: Ricardo Horacio Ciancaglini
  • Publication number: 20140212944
    Abstract: A series of MOF-based hierarchical porous material, namely IPD-mesoMOF-1˜9, based on nanoscale MOFs of MIL-100(Al, Fe, Cr, Sc and In), MIL-53(Al), HKUST-1, DUT-5, DUT-4, MIL-101(Cr), MIL-101NDC(Cr), MIL-101BPDC(Cr) and MIL-110 respectively, forming the permanent interparticle porosities by using close (or relatively close) packing, and preparation methods thereof. Modulated or functionalized IPD-mesoMOFs can be applied for gas adsorption and molecule separation (such as CH4- and CO2-adsorption, gasoline/diesel desulfurization and purification), catalyst loadings and molecular recognition/immobilization of biological macromolecules and enzymes.
    Type: Application
    Filed: April 6, 2014
    Publication date: July 31, 2014
    Applicant: BEIJING STAR NEW MATERIAL CO., LTD.
    Inventors: Yunqi Tian, Yan Chen, Xun Liu
  • Patent number: 8524071
    Abstract: The present invention provides a high capacity adsorbent for removing sulfur from hydrocarbon streams. The adsorbent comprises a composite material containing particles of a nickel phosphide complex NixP. The adsorbent is utilized in a sulfur removal process that does not require added hydrogen, and run at relatively low temperatures ranging from about 150° C. to about 400° C. The process of this invention enables “ultra-deep” desulfurization down to levels of about 1 ppm and less.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: September 3, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Miron V. Landau, Mordechay Herskowitz, Iehudit Reizner, Yaron Konra, Himanshu Gupta, Rajeev Agnihotri, Paul J. Berlowitz, James E. Kegerreis
  • Publication number: 20110297587
    Abstract: A method of removing fines from a hydrocarbon-containing fluid can include preparing a bed media of particulate earthen material (12). The hydrocarbon-containing fluid having fines therein can be passed through the bed media (12) at a flow rate such that a portion of the fines are retained in the bed media (12) to form a filtered hydrocarbon-containing fluid. The flow rate is sufficient to maintain a wetting film of the hydrocarbon-containing fluid across at least a majority portion of the particulate earthen material which is contacted by the hydrocarbon-containing fluid. The filtered hydrocarbon-containing fluid can be recovered from the bed media (12) via a suitable outlet (16) having substantially reduced or eliminated fines content.
    Type: Application
    Filed: December 3, 2010
    Publication date: December 8, 2011
    Inventor: James W. Patten
  • Patent number: 8048295
    Abstract: A process for reducing the Bromine Index of a hydrocarbon feed containing bromine-reactive contaminants that has improved cycle length and utilizes a crystalline molecular sieve catalyst. The process is carried out by contacting the hydrocarbon feed under conversion conditions with a catalyst shaped in the form of an elongated aggregate comprising a crystalline molecular sieve having a MWW or *BEA framework type. The shortest cross-sectional dimension of the elongated aggregate is less about 1/10 inch (2.54 millimeters).
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: November 1, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stephen H. Brown, Jose G. Santiesteban, Bryson J. Sundberg, Terry E. Helton, Daria N. Lissy, Jean W. Beeckman, Arthur P. Werner
  • Patent number: 8007663
    Abstract: One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: August 30, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: Jackie Y. Ying, Javier García-Martinez
  • Publication number: 20110000824
    Abstract: The present invention is directed to a hydroprocessing catalyst containing at least one catalyst support, one or more metals, optionally one or more molecular sieves, optionally one or more promoters, wherein deposition of at least one of the metals is achieved in the presence of a modifying agent.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 6, 2011
    Inventors: Bi-Zeng Zhan, Theodorus Maesen, Janine Lichtenberger, Andrew Rainis, Hye-Kyung Timken
  • Patent number: 7674370
    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 total content of alkali metal, and alkaline-earth metal, in metal salts of organic acids of at least 0.00001 grams per gram of crude feed. The one or more catalysts may include a first and a second catalyst. The crude product is a liquid mixture at 25° C. and 0.101 MPa and has a total content of alkali metal, and alkaline-earth metal, in metal salts of organic acids of at most 90% of the total content of alkali metal, and alkaline-earth metal, in metal salts of organic acids of the crude feed. One or more other properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: March 9, 2010
    Assignee: Shell Oil Company
    Inventors: Opinder Kishan Bhan, Scott Lee Wellington
  • Patent number: 7625430
    Abstract: The present invention concerns a process for capturing organosiliceous complexes in the gaseous or liquid phase on a solid containing at least 80% by weight of alumina after calcining at 1000° C. The alumina has a total pore volume of more than 30 ml/100 g, a fraction of the pore volume in pores with a diameter of 70 ? or more of more than 10 ml/100 g and a specific surface area of more than 10 m2/g.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: December 1, 2009
    Assignee: IFP
    Inventor: Christophe Nedez
  • Publication number: 20090114569
    Abstract: An embodiment of the invention is directed to a treatment method for reducing the level of metallic and nonmetallic impurities in an oil. The method includes the step of contacting the oil with a porous silica adsorbent material. The adsorbent material is characterized by a Brunauer-Emmett-Teller (BET) surface area value (total) of at least about 15 m2/g; and a Barrett-Joyner-Halenda (BJH) pore volume (total) of at least about 0.5 cc/g.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 7, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: John Aibangbee Osaheni, Thomas Joseph Fyvie, Albert Santo Stella
  • Publication number: 20090090657
    Abstract: One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.
    Type: Application
    Filed: June 10, 2008
    Publication date: April 9, 2009
    Inventors: Jackie Y. Ying, Javier Garcia Martinez
  • Publication number: 20080128329
    Abstract: A process for reducing the Bromine Index of a hydrocarbon feed containing bromine-reactive contaminants that has improved cycle length and utilizes a crystalline molecular sieve catalyst. The process is carried out by contacting the hydrocarbon feed under conversion conditions with a catalyst shaped in the form of an elongated aggregate comprising a crystalline molecular sieve having a MWW or *BEA framework type. The shortest cross-sectional dimension of the elongated aggregate is less about 1/10 inch (2.54 millimeters).
    Type: Application
    Filed: December 5, 2006
    Publication date: June 5, 2008
    Inventors: Stephen H. Brown, Jose G. Santiesteban, Bryson J. Sundberg, Terry E. Helton, Daria N. Lissy, Jean W. Beeckman, Arthur P. Werner
  • Patent number: 7205448
    Abstract: At lower temperatures an acidic molecular sieve adsorbent preferentially adsorbs water and basic organic nitrogen compounds over weakly basic organic nitrogen compounds such as nitrites. Elevated temperatures improve the capacity of acidic molecular sieve adsorbents to adsorb nitrites in the presence of water.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: April 17, 2007
    Assignee: UOP LLC
    Inventors: Gregory J. Gajda, Guy B. Woodle, Deng-Yang Jan, Andrew S. Zarchy
  • Publication number: 20040118748
    Abstract: The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises first treating C12 and higher hydrocarbon petroleum feedstock having nitrogen and sulfur containing compounds therein with a porous, particulate adsorbent comprising a silica matrix having an effective amount of metal atoms therein to cause the adsorbent to have Lewis acidity of at least 500 &mgr;mol/g and then treating the resultant feedstock to catalytic hydrodesulfurization to produce a hydrocarbon fuel having low sulfur and nitrogen content.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventors: Markus Friedrich Manfred Lesemann, Constanze Setzer
  • Publication number: 20040118747
    Abstract: Desulfurization reactors, and fuel desulfurization systems incorporating them, comprise monolithic sulfur-adsorbent reactor packings having internal void spaces bounded by internal fuel contacting surfaces that support or contain active sulfur adsorbents for sulfur trapping, the reactors providing efficient fuel feed desulfurization at high liquid and/or gas feed rates and low pressure drops.
    Type: Application
    Filed: December 18, 2002
    Publication date: June 24, 2004
    Inventors: Willard A. Cutler, Lin He, Lorraine K. Owens, Charles M. Sorensen
  • Publication number: 20040118749
    Abstract: The present invention is directed to the removal of nitrogen and sulfur containing impurities from high molecular weight petroleum feedstock obtained from fluid cracking catalyst or distillation zone of a petroleum treatment plant. The present process comprises first treating C12 and higher hydrocarbon petroleum feedstock having nitrogen and sulfur containing compounds therein with a porous, particulate adsorbent comprising a silica matrix having an effective amount of metal atoms therein to cause the adsorbent to have Lewis acidity of at least 500 &mgr;mol/g and then treating the resultant feedstock to catalytic hydrodesulfurization to produce a hydrocarbon fuel having low sulfur and nitrogen content.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventors: Markus Friedrich Manfred Lesemann, Constance Setzer
  • Publication number: 20040004029
    Abstract: A monolith sorbent which defines a plurality of open-ended channels and comprises a reduced-valence promoter metal component and zinc oxide can be employed to desulfurize sulfur-containing fluids such as cracked-gasoline or diesel fuel.
    Type: Application
    Filed: July 8, 2002
    Publication date: January 8, 2004
    Inventors: Gyanesh P. Khare, Edward L. Sughrue
  • Publication number: 20030052043
    Abstract: A channel geometry for monolith and honeycomb catalysts used in two- and three-phase catalytic reactions or gas-liquid mass transfer processes features a desirable channel shape that enhances liquid/structure contacting efficiency and gas/liquid catalytic reaction activity. Gas/liquid catalytic hydrogenation or hydrotreating processes carried with these catalysts use efficient liquid/channel surface contacting and mass transfer of reactants from bulk liquid onto the channel surface to achieve high conversion efficiencies.
    Type: Application
    Filed: November 13, 2001
    Publication date: March 20, 2003
    Inventors: Achim K. Heibel, Wei Liu, Matthew C. Morse
  • Patent number: 6483001
    Abstract: The present invention describes a pressure swing adsorption (PSA) apparatus and process for the production of purified hydrogen from a feed gas stream containing heavy hydrocarbons (i.e., hydrocarbons having at least six carbons). The apparatus comprises at least one bed containing at least three layers. The layered adsorption zone contains a feed end with a low surface area adsorbent (20 to 400 m2/g) which comprises 2 to 20% of the total bed length followed by a layer of an intermediate surface area adsorbent (425 to 800 m2/g) which comprises 25 to 40 % of the total bed length and a final layer of high surface area adsorbent (825 to 2000 m2/g) which comprises 40 to 78% of the total bed length.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: November 19, 2002
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Timothy Christopher Golden, Edward Landis Weist, Jr
  • Patent number: 6451200
    Abstract: Porous composite particles are provided which comprise an aluminum oxide component, e.g., crystalline boehmite, and a swellable clay component, e.g., synthetic hectorite, intimately dispersed within the aluminum oxide component at an amount effective to increase the hydrothermal stability, pore volume, and/or the mesopore pore mode of the composite particles relative to the absence of the swellable clay. Also provided is a method for making the composite particles, agglomerate particles derived therefrom, and a process for hydroprocessing petroleum feedstock using the agglomerates to support a hydroprocessing catalyst.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: September 17, 2002
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Roger Jean Lussier, Stanislaw Plecha, Charles Cross Wear, Gordon Dean Weatherbee
  • Patent number: 5928496
    Abstract: Hydrotalcite-like materials are stable in the crystalline oxide structure and essentially reversible in anion exchange. A novel process of sulfur oxide sorption is provided utilizing these hydrotalcite materials as contact solids. Large crystalline sheet materials having increased sorption of SO.sub.x are provided by incorporation of certain organic acid anionic species to modify the hydrotalcite/brucite structure. Typical industrial applications include sulfur removal from fluid catalyst cracking process, cold-side combustion gas sulfur abatement and cleaner coal gasification.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: July 27, 1999
    Assignee: Contract Materials Processing, Inc.
    Inventors: Edwin W. Albers, Harry W. Burkhead, Jr.
  • Patent number: 5919354
    Abstract: A process is provided for reducing the sulfur content of a hydrocarbon stream, wherein a hydrocarbon stream containing sulfur constituents is contacted with a sorbent under temperature and pressure conditions of low severity. The sorbent includes a metal-exchanged zeolite selected from a group consisting of Y zeolites, ultra-stable Y zeolites, and mixtures thereof. A preferred sorbent is a fluid catalytic cracking (FCC) catalyst having a rare earth metal exchanged Y zeolite or ultra-stable Y zeolite. The sorbent adsorbs sulfur constituents contained in the hydrocarbon stream upon contact therewith to reduce the sulfur content of the hydrocarbon stream.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: July 6, 1999
    Assignee: Marathon Oil Company
    Inventor: Robert Bartek
  • Patent number: 5906731
    Abstract: A hydroprocess catalyzed by a catalyst composition comprising a porous refractory oxide, a molybdenum component, a phosphorus component and an underbedded nickel component, the composition characterized by a Raman spectrum comprising at least one Raman band in each of the regions of (1) about 240 cm.sup.-1 to about 250 cm.sup.-1, and (2) about 595 cm.sup.-1 to about 605 cm.sup.-1. The catalyst is prepared by sequential incorporation of the nickel metal followed by the additional catalytic promoters including a molybdenum component and a phosphorus component.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: May 25, 1999
    Assignee: UOP
    Inventors: Suheil F. Abdo, Howard D. Simpson, Pradeep S. Iyer
  • Patent number: 5858211
    Abstract: An adsorbent for selective removal of nitrile from a hydrocarbon feedstock includes a substantially homogeneous mixture of a cationic nonacidic zeolite and an inorganic oxide matrix, the zeolite having an accessibility index of between about 0.1 to about 0.4, and the adsorbent being capable, when contacted with a hydrocarbon feedstock containing nitrile and containing dienes in an amount of at least about 1.0% by volume, of adsorbing at least about 80% of the nitrile during contact with at least about 200 volumes of the feedstock per volume of adsorbent.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: January 12, 1999
    Assignee: Intevep, S.A.
    Inventors: Maria Magdalena Ramirez de Agudelo, Julia Guerra, Marisela Gonzalez
  • Patent number: 5744686
    Abstract: This invention relates to a process for the removal of nitrogen compounds from an aromatic hydrocarbon stream comprising the nitrogen compounds by contacting the hydrocarbon stream with a selective adsorbent having an average pore size less than. about 5.5 Angstroms. The selective adsorbent is a molecular sieve selected from the group consisting of pore closed zeolite 4A, zeolite 4A, zeolite 5A, silicalite, F-silicalite, ZSM-5 and mixtures thereof. In one embodiment, the present invention comprises a combination of a fractionation zone and an adsorption zone wherein the feedstream is passed to the fractionation zone to provide a dry bottoms product stream essentially free of the nitrogen compounds and an overhead stream. The overhead stream is condensed to provide an aqueous stream and a hydrocarbon stream. The hydrocarbon stream is passed to an adsorption zone and a treated effluent recovered therefrom is returned to the fractionation zone.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: April 28, 1998
    Assignee: UOP
    Inventor: Gregory J. Gajda
  • Patent number: 5466364
    Abstract: The daylight stability, foaming characteristics, color, engine performance test behavior, oxygenates content, and thermal stability of wax isomerate oils and/or hydrocarbon synthesis liquid products are improved by the process of contacting the aforesaid wax isomerate oil and/or hydrocarbon synthesis liquid products with a silica adsorbent, said silica adsorbent being characterized by possessing a pore size of at least about 100 .ANG., preferably at least about 125 .ANG., most preferably at least about 150 .ANG., an alkali/alkaline earth ion concentration, excluding sodium, of greater than about 125 ppm, an iron content of less than about 40 ppm and a zirconium content of less than about 130 ppm.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: November 14, 1995
    Assignee: Exxon Research & Engineering Co.
    Inventors: Bal K. Kaul, Craig Y. Sabottke, Rocco A. Fiato, Edward Niessen
  • Patent number: 4980045
    Abstract: A process is provided for the pretreatment of heavy oil feeds to demetalate and remove coke precursors. Inert, sorbent material is utilized in a reaction zone to effect the contaminant removal and is cycled to a regeneration zone. The sorbent also adsorbs sulfur oxides produced in a regeneration zone which are then cycled back to the reaction zone, converted to hydrogen sulfide, and removed from the system. The preferred sorbent material is high surface area alumina, having an average surface area in the circulating inventory of greater than 100 m.sup.2 /g.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: December 25, 1990
    Assignee: Chevron Research Company
    Inventors: Ashok S. Krishna, David J. Bott, Theresa A. Pecoraro
  • Patent number: 4839029
    Abstract: In the present invention, a petroleum fraction containing arsenic is brought into contact with an adsorbent comprising a substrate such as an active carbon, bituminous coal or organic polymeric compound having introduced therein a sulfur element, particularly represented by mercapto moiety, and therefore arsenic in the petroleum fraction can be removed at a high percent removal by means of simple equipment, and, even if highly reactive olefins are contained in the petroleum fraction, these olefins do not polymerize, thus troubles do not occur.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: June 13, 1989
    Assignee: Tonen Sekiyu Kagaku Kabushiki Kaisha
    Inventors: Shinichi Ichikawa, Unkichi Yoshida, Yoshihisa Matsushima, Hisatake Hashimoto
  • Patent number: 4834869
    Abstract: This invention relates to a method of preparing a metal-containing amorphous magnesia-alumina-aluminum phosphate catalyst support involving the admixture of an organic cation having a size equal to or greater than 2 Angstroms, the organic cation preferably being a tertiary or a tetraalkylammonium or phosphonium cation. The method permits recovery of a catalyst support having a controlled pore size distribution. The invention also relates to an improved catalytic support as well as an improved petroleum residua upgrading process comprising hydrotreating residua in the presence of the improved catalyst support.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: May 30, 1989
    Assignee: Mobil Oil Corp.
    Inventors: Philip J. Angevine, Pochen Chu, Thomas F. Degnan, Garry W. Kirker
  • Patent number: 4812436
    Abstract: The invention provides a synthetic, calcined metal-oxide-silica adsorbent of which at least 40% of its surface area is contained in pores with radius of at least 2 nm. The invention further provides a process for refining oil, wherein the oil is treated with the adsorbent as a bleaching solid. The adsorbent can be regenerated by calcination without substantial loss of activity.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: March 14, 1989
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Leendert H. Staal, Jan C. Vis, Jan W. Groeneweg
  • Patent number: 4804796
    Abstract: Improved, heterogeneous, refractory catalysts are in the form of gas-impervious, hollow, thin-walled spheres (10) suitable formed of a shell (12) of refractory such as alumina having a cavity (14) containing a gas at a pressure greater than atmospheric pressure. The wall material may be itself catalytic or a catalytically active material coated onto the sphere as a layer (16), suitably platinum or iron, which may be further coated with a layer (18) of activator or promoter. The density of the spheres (30) can be uniformly controlled to a preselected value within .+-.10 percent of the density of the fluid reactant such that the spheres either remain suspended or slowly fall or rise through the liquid reactant.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: February 14, 1989
    Assignee: California Institute of Technology
    Inventors: Taylor G. Wang, Daniel D. Elleman, Mark C. Lee, James M. Kendall, Jr.
  • Patent number: 4781818
    Abstract: Improved noncatalytic nonreactive alumina-silica solid for removing carbonaceous and metallic contaminants including nickel and vanadium from hydrocarbon feedstock by short term, high temperature contact comprises mullite and crystalline silica. In the decarbonizing and demetallizing process, impurities are deposited on the particles of the solid and the major portion of the feedstock is vaporized. After burning carbonaceous deposit from the particles, the hot particles containing nickel and vanadium are recycled into contact with incoming charges of contaminated feedstock. Periodically metals are removed from coke-depleted particles by extraction with a mineral acid at elevated temperature without dissolving or otherwise destroying the alumina-silica particles. The particles are then reintroduced into the system.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: November 1, 1988
    Assignee: Engelhard Corporation
    Inventors: William J. Reagan, David W. White, William R. Schultz, L. Alan Jarnagin
  • Patent number: 4744888
    Abstract: We disclose a catalyst system which is capable of removing sodium from a hydrocarbon feed having at least 1 ppm oil-soluble sodium. It comprises a catalyst layer characterized as a fixed bed of catalyst particles having a low volume percent of their pore volume percent in the form of macropores above 1000 .ANG. in diameter, high surface area, and high hydrogenation activity. We also disclose a process of using the system.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: May 17, 1988
    Assignee: Chevron Research Company
    Inventors: Chi-Wen Hung, Bruce E. Reynolds
  • Patent number: 4741821
    Abstract: We disclose a catalyst system which is capable of removing calcium from a hydrocarbon feed having at least 1 ppm oil-soluble calcium. It comprises a catalyst layer characterized as a fixed bed of catalyst particles, a high volume percent of their pore volume in the form of macropores above 1000 .ANG. in diameter, low surface area, and low hydrogenation activity. We also disclose a process of using the system.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: May 3, 1988
    Assignee: Chevron Research Company
    Inventors: Chi-Wen Hung, Bruce E. Reynolds
  • Patent number: 4585546
    Abstract: Residual oils containing metals and sulfur are demetallized and desulfurized by adding to the oil an aromatic solvent and contacting the mixtures in the presence of hydrogen with an alumina having an average pore size greater than about 220 Angstroms.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: April 29, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Emmerson Bowes, Malvina Farcasiu, Eric J. Y. Scott
  • Patent number: 4115248
    Abstract: A catalyst composition, a method for its preparation and a hydrotreating process using same. The catalyst comprises a rigidly interconnected pack of irregularly shaped particles having an average diameter below 0.15 mm. Among the particles and throughout the pack are access channels comprising interconnected macropores having diameters in the 0.1 to 15 micron range which contribute at least 5 percent of the pore volume. The particles comprise materials selected from the group consisting of at least one refractory oxide component and one hydrogenation component. For each 100 parts of the oxide component the composition contains, in parts by weight, an amount of the hydrogenating component, calculated as metal, in the range from 0.1 to 50 parts.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: September 19, 1978
    Assignee: Chevron Research Company
    Inventor: Bernard F. Mulaskey