With Group Vi Metal Or Metal Oxide Patents (Class 208/136)
  • Patent number: 6593503
    Abstract: A catalyst composition and a process for converting a hydrocarbon stream such as, for example, gasoline to C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition includes an alumina, a silica, and a metal wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.6:1. The process includes contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to a C6 to C8 aromatic hydrocarbon. Also disclosed is a process for producing the catalyst composition which includes: (1) contacting a zeolite with an effective amount of an acid under a condition sufficient to effect a reduction in aluminum content of the zeolite to produce an acid-leached zeolite; and (2) impregnating the acid-leached zeolite with an effective amount of a metal compound under a condition sufficient to effect the production of a metal-promoted zeolite.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: July 15, 2003
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake, Ralph J. Melton
  • Publication number: 20030125198
    Abstract: Alumina having a pore structure characterized by the absence of macropores, no more than 5% of the total pore volume in pores greater than 350 Å, a high pore volume (greater than 0.8 cc/g measured by mercury intrusion) and a bi-modal pore volume distribution character, where the two modes are separated by 10 to 200 Å, and the primary pore mode is larger than the median pore diameter (MPD), calculated either by volume or by surface area, the MPD by volume being itself larger than the MPD by surface area. Also provided are catalysts made from and processes using such alumina.
    Type: Application
    Filed: December 17, 2002
    Publication date: July 3, 2003
    Inventors: Josiane M. Ginestra, Russell C. Ackerman, Christain G. Michel
  • Patent number: 6537442
    Abstract: The invention pertains to a cogel comprising oxidic compounds of one or more trivalent metallic elements selected from the group of aluminum, borium, gallium, chromium, iron, cobalt, manganese, vanadium, molybdenum, tungsten, indium, rhodium, scandium, or mixtures thereof, oxidic compounds of one or more tetravalent metallic elements selected from the group of silicon, titanium, germanium, or mixtures thereof and oxidic compounds of one or more divalent metallic elements with at least one divalent metallic element not selected from Group VIII non-noble metallic elements, wherein a) the cogel is essentially X-ray amorphous apart from saponite, if present; b) the saponite content CA of the cogel is less than 60%; c) the cogel has a surface area of at least 400 m2/g; d) the cogel has a cation-exchange capacity of at least 0.5 wt %; and e) the total of sodium and potassium contained in the cogel amounts to less than 0.5 wt %, based on the total weight of the cogel.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: March 25, 2003
    Assignee: Akzo Nobel N.V.
    Inventors: Jan Nieman, Stephan Janbroers
  • Patent number: 6515033
    Abstract: An integrated process for producing a hydrocarbon stream including C5-20 normal and iso-paraffins is disclosed. The process involves isolating a non-sulfur containing methane stream and a sulfur-containing C5+ stream from a natural gas source. The methane stream is converted to syngas and further reacted to form a higher molecular weight hydrocarbon product stream. The C5-20 hydrocarbons in that product stream are hydroprocessed along with at least a portion of the C5+ stream from the natural gas source. The presence of sulfur in the C5+ stream minimizes the hydrogenolysis that would otherwise occur if the C5-20 hydrocarbons were hydroprocessed without added sulfur-containing compounds or other hydrocracking suppressants. The result is an improved yield of C5-20 hydrocarbons relative to when the hydroprocessing step does not include hydrocracking suppressants.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: February 4, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: Richard O. Moore, Jr., Roger D. Van Gelder
  • Patent number: 6514904
    Abstract: A catalyst and a process for using the catalyst are disclosed generally for the conversion of hydrocarbons. By the use of at least one high temperature calcination under dry conditions, a catalyst with a beneficial combination of lowered surface area and excellent piece crush is created. X-ray diffraction pattern information is used to distinguish the resulting product.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: February 4, 2003
    Assignee: UOP LLC
    Inventors: Mark D. Moser, Robin E. Shepherd, Andrzej Z. Ringwelski, John Y. G. Park
  • Patent number: 6515032
    Abstract: An integrated process for producing a hydrocarbon stream including C5-20 normal and iso-paraffins is disclosed. A de-sulfurized methane-rich stream and a natural gas condensate are isolated from the natural gas source. The methane-containing stream is converted into syngas, which is then subjected to a hydrocarbon synthesis process, for example, Fischer-Tropsch synthesis. One or more fractions from the hydrocarbon synthesis are blended with the natural gas condensate for co-hydroprocessing, where the blended stream includes less than about 200 ppm sulfur. Olefins and oxygenates are hydrotreated to form paraffins. Paraffins are subjected to hydroisomerization conditions to form isoparaffins. Hydrocarbons with chain lengths above a desired value, for example, C24, are hydrocracked. The hydrogenolysis that would otherwise form undesired C1-4 fractions is minimized by judicious selection of noble metal catalysts.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: February 4, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: Richard O. Moore, Jr., Roger D. Van Gelder
  • Patent number: 6515034
    Abstract: An integrated process for producing a hydrocarbon stream, preferably including predominantly C5-20 normal and iso-paraffins, is disclosed. The process involves isolating a C4− stream and, optionally a C5+ stream (“natural gas condensate”) from a natural gas source. The C4− stream is converted to syngas, and the syngas used in a hydrocarbon synthesis process, for example, Fischer-Tropsch synthesis. In one embodiment, one or more fractions from the hydrocarbon synthesis are blended with one or more crude oil derived fractions, and, optionally, the natural gas condensate, such that the overall sulfur content of the blend is less than about 200 ppm. If necessary, the crude oil fractions and/or natural gas condensate can be treated to lower the sulfur content so that the blend has an acceptable sulfur level. The fraction from the hydrocarbon synthesis may include, for example, C5-20 hydrocarbons, C20+ hydrocarbons, or C5+ hydrocarbons.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: February 4, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: Richard O. Moore, Jr., Roger D. Van Gelder
  • Patent number: 6504073
    Abstract: A method for converting benzene and aromatic hydrocarbon compounds having 9 or more carbon atoms contained in a material oil having a boiling point of 30˜210° C. into toluene and aromatic hydrocarbon compounds having 8 carbon atoms in the presence of hydrogen and the said catalyst. The catalyst can be obtained by carrying at least one metal or metal compound selected from Group VIII and Group VIA of the Periodic Table on a carrier containing zeolites in which maximum diameter among diameters of its micropores is 0.6-1.0 nm and a ratio of SiO2/Al2O3 is 50 or more.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: January 7, 2003
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Masaru Ushio, Eiji Yasui, Fumio Haga, Toshiyuki Enomoto
  • Patent number: 6451199
    Abstract: For transforming hydrocarbons into aromatic compounds, the reaction is conducted on a homogeneous bed of catalyst particles, said catalyst comprising at least one amorphous matrix, at least one noble metal, at least two additional metals M1 and M2 and at least one halogen, and in which, for a catalyst particle, Cpt is the local concentration of platinum; CM1 is the local concentration of additional metal M1; CM2 is the local concentration of additional metal M2; in which the standard deviation of the distribution of the local ratios of the concentrations of the additional metals, CM1/CM2, measured along the particle diameter, is better than 25% relative.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 17, 2002
    Assignee: Institut Francais du Petrole
    Inventors: Hervé Cauffriez, Fabienne Le Peltier, Elisabeth Rosenberg
  • Patent number: 6428765
    Abstract: A new family of crystalline metal oxide compositions have been synthesized. These compositions are described by the empirical formula: AnTaMxM′yM″mOp where A is an alkali metal cation, ammonium ion and mixtures thereof, M is tungsten, molybdenum, or mixtures thereof. M′ is vanadium, antimony, tellurium, niobium and mixtures thereof, and M″ is titanium, tin, indium and gallium, aluminum, bismuth and mixtures thereof. M′ and M″ are optional metals. These compositions are characterized by having an x-ray diffraction pattern having at least one peak at a d spacing of about 3.9 Å. These materials can be used in various hydrocarbon conversion processes such as dehydrogenation.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: August 6, 2002
    Assignee: UOP LLC
    Inventors: Robert L. Bedard, Lisa M. King, Paula L. Bogdan, Susan C. Koster
  • Publication number: 20020023859
    Abstract: A process for conversion of hydrocarbon feed by contacting the feed with a catalyst containing heteropoly acid supported on a carrier at reaction conditions being effective in the conversion of the feed, wherein the carrier is selected from substantially inert inorganic amorphous or crystalline material, which retains characteristic structure of the heteropoly acid as evidenced by vibration frequencies around 985 and 1008 cm−1, and which has a surface area larger than 15 m2/g excluding surface area in pores below 15 Å in diameter.
    Type: Application
    Filed: July 12, 2001
    Publication date: February 28, 2002
    Applicant: Haldor Topsoe A/S
    Inventors: Olga V. Masloboishchikova, Aleksandr V. Ivanow, Tatjana V. Vasina, Leonid M. Kustov, Peter Lehrmann, Simon Jacobsen, Jindrich Houzvicka
  • Patent number: 6350370
    Abstract: The present invention relates to a process for improving the pour point of a feed including paraffins containing more than 10 carbon atoms. Desirably, the feed to be treated is brought into contact with a catalyst based on NU-85 zeolite, at least partially in its acid form, and at least one hydro-dehydrogenating element, at a temperature which is in the range 170° C. to 500° C., a pressure in the range 1 to 250 bar and at an hourly space velocity in the range 0.05 to 100 h−1, in the presence of hydrogen in a proportion of 50 to 2000 l/l of feed.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: February 26, 2002
    Assignee: Institut Francais du Petrole
    Inventors: Eric Benazzi, Nathalie George-Marchal, Christophe Gueret, Patrick Briot, Alain Billon, Pierre Marion
  • Patent number: 6203695
    Abstract: A process for hydrotreating a hydrocarbon feed, comprising subjecting said feed to hydrotreating conditions in the presence of a catalyst comprising an essentially alumina-based extruded support, essentially constituted by a plurality of juxtaposed agglomerates, optionally at least one catalytic metal or a compound of a catalytic metal from group VIB (group 6 of the new periodic table notation) and/or optionally, at least one catalytic metal or a compound of a catalytic metal from group VIII (group 8, 9 and 10 of the new periodic table notation), in which the sum S of the group VIB and VIII metals, expressed as the oxides, is 0% to 50% by weight, and wherein each of these agglomerates is partly in the form of packs of flakes and partly in the form of needles, said needles being uniformly dispersed both about the packs of flakes and between the flakes, in which the alumina agglomerates are obtained by forming a starting alumina originating from rapid dehydration of hydrargillite and in which the amount of alum
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: March 20, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Virginie Harle, Slavik Kazstelan, Frédéric Morel, Stéphane Kressmann, Philippe Courty
  • Patent number: 6165352
    Abstract: A continuous process for the dehydrogenation of a hydrocarbon and/or oxygenated hydrocarbon feed, comprising contacting the hydrocarbon and/or oxygenated hydrocarbon feed with a dehydrogenation catalyst at elevated temperature in a reaction zone characterised in that the catalyst is capable of retaining hydrogen and (a) is contacted with a feed to form a dehydrogenated product and hydrogen, at least some of the hydrogen formed being adsorbed by the catalyst and/or reacting therewith to reduce at least part of the catalyst; (b) the dehydrogenated product and any unadsorbed/unreacted hydrogen is removed from the reaction zone; (c) at least some of the adsorbed hydrogen is removed from the catalyst and/or at least some of the reduced catalyst is oxidised; and (d) reusing the catalyst from step (c) in step (a).
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: December 26, 2000
    Assignee: BP Chemicals Limited
    Inventors: Jeremy Bernard Cooper, Jonathon Charles Frost, Stephen Roy Partington
  • Patent number: 6153089
    Abstract: A process for converting undesirable olefinic hydrocarbon streams to hydrogen and petrochemical feedstock e.g. light olefins in C.sub.2 -C.sub.4 range and aromatics especially toluene and xylenes, which comprises simultaneous cracking and reforming at olefin rich hydrocarbons using a catalyst consisting of dehydrogenating metal components, shape selective zeolite components and large pore acidic components in different proportions in a circulating fluidized bed reactor-regenerator system having reactor temperature within 450-750.degree. C. and WHSV of 0.1-60 hour.sup.-1.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: November 28, 2000
    Assignee: Indian Oil Corporation Limited
    Inventors: Asit Kumar Das, Sukumar Mandal, Sobhan Ghosh, Debasis Bhattacharyya, Ganga Shanker Mishra, Jagdev Kumar Dixit, Arvind Pratap Singh, Ashok Kumar Tewari, Satish Makhija, Manoranjan Santra, Latoor Lal Saroya, Shankar Sharma, Satyen Kumar Das
  • Patent number: 6124516
    Abstract: A process for isomerizing hydrocarbons is disclosed. The process includes contacting, under reaction conditions, a hydrocarbon-containing fluid containing a saturated hydrocarbon, preferably a normal paraffin containing in the range of from about 4 carbon atoms to about 10 carbon atoms per molecule, with a composition in a single-stage reaction zone. The process includes isomerizing such saturated hydrocarbon to thereby provide a product containing an isomerized hydrocarbon. The composition used in the process contains a zeolite and a metal carbide. The composition can be produced by combining a metal, preferably such metal is in a metal compound, with the zeolite to thereby provide a metal-promoted zeolite. The metal-promoted zeolite is then calcined or steamed followed by contacting the resulting zeolite with a hydrocarbon, preferably in the presence of hydrogen, to thereby provide a carburized metal-promoted zeolite.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: September 26, 2000
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6124515
    Abstract: A catalyst composition, a process for producing the catalyst composition, and a hydroconversion process for converting a fluid stream comprising at least one saturated hydrocarbon to C.sub.6 to C.sub.8 aromatic hydrocarbons such as benzene, toluene, and xylenes are disclosed. The catalyst composition comprises a zeolite and a promoter. The process for producing the composition comprises the steps of: (1) combining a zeolite with a complexing ligand and a promoter compound under a condition sufficient to produce a modified zeolite; and (2) heating the modified zeolite to produce a promoted zeolite. The hydroconversion process comprises contacting a fluid stream with the catalyst composition under a condition sufficient to effect the conversion of a saturated hydrocarbon to a C.sub.6 to C.sub.8 aromatic hydrocarbon.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: September 26, 2000
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6093671
    Abstract: A composition, a process for producing the composition, and a hydrotreating process are disclosed. The composition comprises a zeolite having incorporated therein a promoter comprising at least two carburized metals. The composition can be produced by incorporating at least two metal compounds into the zeolite followed by thermal treatment of the resulting zeolite with a hydrocarbon, preferably in a reducing atmosphere. The hydrotreating process comprises contacting a hydrocarbon-containing fluid with the composition under a condition sufficient to effect the reduction of sulfur content in the hydrocarbon-containing fluid.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: July 25, 2000
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6075061
    Abstract: The instant invention is directed to an integrated process for producing a hydroisomerate in the presence of sulfur comprising the steps of (a) separating a natural gas into a first stream comprising a C.sub.5 + gas field condensate containing sulfur and a second stream comprising said natural gas having said a C.sub.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: June 13, 2000
    Assignee: Exxon Research and Engineering Company
    Inventors: Robert Jay Wittenbrink, Bruce Randall Cook, Paul Joseph Berlowitz
  • Patent number: 6063975
    Abstract: A catalyst composition, a process for producing the composition, and a hydrotreating process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C.sub.6 to C.sub.8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition comprises a zeolite, a clay, and a promoter. The process for producing the composition comprises the steps: (1) combining a zeolite with a clay and a promoter under a condition sufficient to bind the clay to the zeolite to produce a clay-bound zeolite; and (2) heating the clay-bound zeolite to produce a modified zeolite. The hydrotreating process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to an olefin and a C.sub.6 to C.sub.8 aromatic hydrocarbon.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: May 16, 2000
    Assignee: Phillips Petroleum Company
    Inventors: Charles A. Drake, An-hsiang Wu
  • Patent number: 6045689
    Abstract: A process for converting hydrocarbons into aromatic compounds, which entails contacting a composition containing hydrocarbons with a catalyst under temperature and pressure conditions to produce the aromatic compounds, the catalyst containing a matrix of .eta. transition alumina and/or .gamma. transition alumina. The catalyst contains 0.001 to 2 wt % of silicon, 0.1 to 15 wt % of at least one platinum group metal, and 0.005 to 10 wt % of at least one promoter metal. The promoter metals may be tin, germanium, indium, gallium, thallium, antimony, lead, rhenium, manganese, chromium, molybdenium or tungsten. The catalyst may also contain a doping metal.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: April 4, 2000
    Assignee: Institut Francais du Petrole
    Inventors: Fabio Alario, Jean-Marie Deves, Patrick Euzen
  • Patent number: 6034020
    Abstract: A process for producing catalyst compositions for converting a cracked gasoline feedstock to a product that is principally lower olefins. The catalyst compositions produced thereby. A process for converting a cracked gasoline feedstock to a product that is principally lower olefins.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: March 7, 2000
    Assignee: Phillips Petroleum Company
    Inventors: Charles A. Drake, An-hsiang Wu
  • Patent number: 6017840
    Abstract: A catalyst composition and a process for converting a hydrocarbon stream such as, for example, a C.sub.9 +aromatic compound to C.sub.6 to C.sub.8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises an aluminosilicate, and a metal wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.6:1. The process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to a C.sub.6 to C.sub.8 aromatic hydrocarbon.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: January 25, 2000
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6007700
    Abstract: Gasolines are reformed and parafin and naphthene hydrocarbons are converted to aromatic compounds by contacting the hydrocarbons with a catalyst comprising a matrix of .eta. transition alumina and .gamma. transition alumina. The catalyst contains at least one doping metal, at least one halogen, at least one noble metal and at least one promoter metal. The doping metals are selected from titanium, zirconium, hafnium, cobalt, nickel, zinc, and the lanthanides and the promoter metals are selected from tin, germanium, indium, gallium, thallium, antimony, lead, rhenium, manganese, chromium, molybdenum and tungsten.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: December 28, 1999
    Assignee: Institut Francais Du Petrole
    Inventors: Fabio Alario, Jean-Marie Deves, Patrick Euzen
  • Patent number: 6007699
    Abstract: A process for oxidizing fuel and transferring the heat produced to a particular use in a combustion system such as fuels conversion. A bed of a mixture of materials forming an unmixed combustion catalyst, which in an oxidized state is readily reducible and in a reduced state is readily oxidizable, is placed in efficient thermal contact with a heat receiver for use in the combustion system. Fuel and air are alternately contacted with the bed, whereby the fuel is oxidized, the air is depleted of oxygen, and heat is liberated. The heat is efficiently transferred to the heat receiver by careful selection of the materials of the bed such that the temperatures produced when the fuel is oxidized and when the air is depleted of oxygen are advantageous to the particular use in the combustion system.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: December 28, 1999
    Assignee: Energy and Environmental Research Corporation
    Inventor: Jerald A. Cole
  • Patent number: 5989410
    Abstract: The invention relates to a process for improving the pour point of a feedstock that comprises paraffins of more than 10 carbon atoms, in which the feedstock that is to be treated is brought into contact with a catalyst that comprises the IM-5 zeolite and at least one hydro-dehydrogenating element, at a temperature of between 170 and 500.degree. C., a pressure of between 1 and 250 bar, and an hourly volume velocity of between 0.05 and 100 h.sup.-1, in the presence of hydrogen at a ratio of 50 to 2000 l/l of feedstock. The oils that are obtained have good pour points and high viscosity indices (VI). The process can also be applied to gas-oils and other feedstocks whose pour points need to be lowered.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: November 23, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Eric Benazzi, Nathalie George-Marchal, Christophe Gueret, Patrick Briot, Alain Billon, Pierre Marion
  • Patent number: 5968345
    Abstract: A process for the conversion of a hydrocarbon load containing paraffin, naphthene and aromatic hydrocarbons having 5 to 12 carbon atoms into aromatic compounds, which entails contacting the load with a catalyst under temperature and pressure conditions to produce the aromatic compounds, the catalyst containing:a matrix consisting of 0 to 100% by weight of .eta. transition alumina, the remaining weight percentage of the matrix, up to 100%, consisting of .gamma. transition alumina, andat least one doping metal selected from the group consisting of alkali metals and alkaline-earth metals,at least one halogen selected from the group consisting of fluorine, chlorine, bromine and iodine,at least one noble metal selected from the platinum group, andat least one promoter metal selected from the group consisting of tin, germanium, indium, gallium, thallium, antimony, lead, rhenium, manganese chromium, molybdenum and tungsten,the catalyst having previously been hydrothermally treated at a temperature of 300 to 1,000.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: October 19, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Fabio Alario, Jean-Marie Deves, Patrick Euzen
  • Patent number: 5965782
    Abstract: A catalyst composition, a process for producing the composition and a process for transalkylation of C.sub.9 + aromatic compounds to C.sub.6 to C.sub.8 aromatic hydrocarbons are disclosed. The composition comprises a zeolite and tungsten wherein tungsten is preferably present as tungsten carbide which is impregnated on the zeolite. A preferred process for producing the catalyst composition which comprises: (1) contacting a zeolite with an effective amount of an acid under a condition sufficient to produce an acid-leached zeolite; and (2) impregnating acid-leached zeolite with an effective amount of tungsten-containing compound under a condition sufficient to effect the production of a tungsten carbide-promoted zeolite. The transalkylation process comprises contacting, in the presence of the catalyst composition, a fluid which comprises a C.sub.9 + aromatic compound with a hydrogen-containing fluid under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: October 12, 1999
    Inventors: Charles A. Drake, An-hsiang Wu
  • Patent number: 5922630
    Abstract: A catalyst composition and a process for converting a hydrocarbon stream such as, for example, a C.sub.9 + aromatic compound to C.sub.6 to C.sub.8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises an aluminosilicate, and a metal wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.6:1. The process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to a C.sub.6 to C.sub.8 aromatic hydrocarbon.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: July 13, 1999
    Assignee: Phillips Petroleum Company
    Inventors: An-Hsiang Wu, Charles A. Drake
  • Patent number: 5916433
    Abstract: A catalyst system for treating sulfur and nitrogen contaminated hydrocarbon feedstock includes a matrix, at least one support medium substantially uniformly distributed through said matrix and comprising a silica alumina molecular sieve material having a composition xSiO.sub.2 :Al.sub.2 O.sub.3 :yP.sub.2 O.sub.5, wherein x is at least about 0.1, a first catalytically active metal phase supported on said support medium, said first catalytically active metal phase comprising a first metal and a second metal each selected from group VIII of the Periodic Table of Elements, said first metal being different from said second metal, a second catalytically active metal phase supported on said matrix, said second catalytically active metal phase comprising a third metal and a fourth metal each selected from group VIII of the Periodic Table of Elements and a fifth metal selected from group VIb of the Periodic Table of Elements, said third metal being different from said fourth metal.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: June 29, 1999
    Assignee: Intevep, S.A.
    Inventors: Jorge Alejandro Tejada, Yilda Margot Romero, Edito Jose Reyes
  • Patent number: 5895829
    Abstract: In a process for preparing olefinically unsaturated compounds such as styrene by oxidative dehydrogenation of corresponding hydrocarbons using a previously oxidized oxygen transferer acting as catalyst in the absence of molecular oxygen and reoxidation of the oxygen transferer in at least two reactors, the dehydrogenation and regeneration takes place alternately in time in the two reactors and the reactors are connected to one another in terms of heat via heat exchangers and a common circuit for heat transfer medium.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: April 20, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Jurgen Popel, Alfred Hagemeyer, Wolfgang Buchele, Axel Deimling, Wolfgang Hoffmann
  • Patent number: 5880324
    Abstract: A catalyst comprising a modified mordenite zeolite catalyst modified with Pt and a promoter selected from the group consisting of Group IIB, Group IVA, Group VIB and mixtures thereof is effectively used in a process for the simultaneous dehydrogenation and isomerization of paraffins to isoparaffins and isoolefins under controlled conditions. The catalyst is prepared by depositing on the modified mordenite zeolite catalyst sequentially Pt and thereafter the promoter.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: March 9, 1999
    Assignee: Intevep, S.A.
    Inventors: Maria Magdalena de Agudelo, Trino Romero, Jose Guaregua, Marisela Gonzalez
  • Patent number: 5853566
    Abstract: The present invention provides a catalyst composition, and a hydrocarbon conversion process in which it is used, comprising as first cracking component a zeolite beta having a silica to alumina molar ratio of at least 20 which is in the form of crystals less than 100 nm in size; a second cracking component selected from (i) crystalline molecular sieves having pores with diameters greater than 0.6 nm, (ii) crystalline, mesoporous aluminosilicates having pores with diameters of at least 1.3 nm, and (iii) clays; and at least one hydrogenation component.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: December 29, 1998
    Assignee: Shell Oil Company
    Inventors: Bettina Kraushaar-Czarnetzki, Johannes Wijnbelt
  • Patent number: 5833839
    Abstract: Discloses high purity solvent compositions constituted of n-paraffins and isoparaffins, with the isoparaffins containing predominantly methyl branches, and having an isoparaffin:n-paraffin ratio sufficient to provide superior low temperature properties and low viscosities. The solvent compositions are made by a process wherein a waxy, or long chain paraffinic feed, especially a Fischer-Tropsch wax, is reacted over a dual function catalyst to produce hydroisomerization and hydrocracking reactions at 700.degree. F.+ conversion levels ranging from about 20 to 90 wt. % to provide a C.sub.5 -1050.degree. F. crude fraction. The C.sub.5 -1050.degree. F. crude fraction is then topped via atmospheric distillation to produce a low boiling fraction with an upper end point boiling between about 650.degree. F. and 750.degree. F. The low boiling fraction is fractionated and a narrow boiling range solvent obtained therefrom; one which can be further divided into solvent grades of various boiling ranges.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: November 10, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Robert Jay Wittenbrink, Steven Earl Silverberg, Daniel Francis Ryan
  • Patent number: 5824209
    Abstract: A process for the improvement of hydrocarbon fuels using a low temperature and pressure catalytic system is described. The reforming of these products occurs when the hydrocarbon fuel is passed over an alloy metal catalyst at low temperature (i.e., about -50.degree. F. to 250.degree. F.) and pressure (i.e., about 10 to 100 psia). The alloy metal catalyst is housed in a non-electrical conducting chamber and is operated with fluid Reynolds Numbers over the catalyst surface of about 2.times.10.sup.3 to 20.times.10.sup.4. The hydrocarbon fuel is recirculated over the alloy metal catalyst between 1 and approximately 100 times. This process results in reformed hydrocarbon fuels having superior performance qualities than the base hydrocarbon fuel. Vehicle road tests using such reformed fuels have shown substantial mileage improvements over the base fuels.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: October 20, 1998
    Assignee: Pac Rim Products, Inc.
    Inventors: Anthony J. Arand, John K. Arand, Jr.
  • Patent number: 5817903
    Abstract: A catalyst composition and a process for converting a C.sub.9 + aromatic compound to C.sub.6 to C.sub.8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises a zeolite and a metal. The process comprises contacting a fluid stream containing a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the production of C.sub.6 to C.sub.8 aromatic hydrocarbon. Also disclosed is a process for producing the catalyst composition which can comprise: (1) impregnating a zeolite with an effective and coke-reducing amount of a metal compound under a condition sufficient to effect the production of a metal-promoted zeolite and (2) calcining the metal-promoted zeolite.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: October 6, 1998
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 5800698
    Abstract: A catalyst system for treating sulfur and nitrogen contaminated hydrocarbon feedstock includes a matrix, at least one support medium substantially uniformly distributed through said matrix and comprising a silica alumina molecular sieve material having a silica/alumina ratio of at least about 20, a first catalytically active metal phase supported on said support medium, said first catalytically active metal phase comprising a first metal and a second metal each selected from group VIII of the Periodic Table of Elements, said first metal being different from said second metal, a second catalytically active metal phase supported on said matrix, said second catalytically active metal phase comprising a third metal and a fourth metal each selected from group VIII of the Periodic Table of Elements and a fifth metal selected from group VIb of the Periodic Table of Elements, said third metal being different from said fourth metal.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: September 1, 1998
    Assignee: Intevep, S.A.
    Inventors: Jorge Tejada, Yilda Romero, Edito Reyes, Ricardo Prada, Mariana Torrealba
  • Patent number: 5689024
    Abstract: This invention relates to use of a new and improved form of crystalline material identified as having the structure of SUZ-9 as a sorbent or a catalyst for organic compound, e.g., hydrocarbon compound, conversion.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: November 18, 1997
    Assignee: Mobil Oil Corporation
    Inventor: Kirk D. Schmitt
  • Patent number: 5609750
    Abstract: A catalyst composition for converting hydrocarbons in a hydrotreatment process (hydrodesulfurization and/or hydrodenitrogenization) and simultaneously cracking them, containing an alumina-silica-alumina carrier built up from alumina and silica-alumina, on which hydrogenation metals, such as molybdenum, nickel, and/or cobalt, have been provided and which also contains a catalytically active amount of boron, generally in the range of 1 to 20 wt. %. The invention also relates to a process for the preparation of such a catalyst, with boron being provided ahead of the Group VIII component. The carrier material used may be made up of mixtures of alumina and amorphous silica-alumina or of mixtures of alumina and silica-coated alumina. The catalyst composition is highly suitable for converting vacuum gas oil into middle distillate oils by hydrotreating.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: March 11, 1997
    Assignee: Akzo Nobel NV
    Inventors: Pieter J. Nat, Jacob L. de Booys, Johannes W. F. M. Schoonhoven
  • Patent number: 5498821
    Abstract: Methane is suppressed in a hydroisomerization process without substantial effect on light gas and light liquid yields when carbon dioxide is included with the feed and a Group VIII non-noble metal or Group VI metal catalyst supported on alumina or silica-alumina.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: March 12, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: Daniel F. Ryan, Robert J. Wittenbrink
  • Patent number: 5494571
    Abstract: A naphtha upgrading process is provided which process utilizes a sulfated solid catalyst comprising (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from the group consisting of platinum, palladium, nickel, platinum and rhenium, and platinum and tin. The sulfated support is calcined prior to incorporation of the first metal and subsequent to said incorporation. The catalyst may further comprise (3) a second metal selected from the group consisting of Group VIII elements, e.g. iron. One embodiment of the invention further comprises (4) a third metal selected from the group consisting of Group V, VI and VII elements, e.g. manganese. Said second and third metals are added prior to the first calcination.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: February 27, 1996
    Assignee: Sun Company, Inc. (R&M)
    Inventors: Benjamin S. Umansky, Richard E. Mitchell, Chao-Yang Hsu, Manoj V. Bhinde, Chiu-Hsun Lin
  • Patent number: 5456822
    Abstract: Disclosed are reactions for the aromatization of hydrocarbons containing 2 to 9 carbon atoms per molecule, with a composite catalyst containing:an MFI zeolite in hydrogen form, the framework containing at least one of the elements silicon, aluminum and/or gallium; a matrix; gallium; at least one noble metal of the platinum family, at least one additional metal selected from the group made up of tin, germanium, indium, copper, iron, molybdenum, gallium, thallium, gold, silver, ruthenium, chromium, tungsten and lead, and possibly a compound selected from the group made up of alkali and alkaline earth metals.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: October 10, 1995
    Assignee: Institut Francais du Petrole
    Inventors: Christian Marcilly, Fabio Alario, Jean-Francois Joly, Fabienne Le Peltier
  • Patent number: 5384027
    Abstract: A process for reforming a hydrocarbon which comprises treating the hydrocarbon, while at elevated temperature, with a transition metal catalyst while in the presence of an effective amount of gaseous oxygen to improve the selectivity of the catalyst to aromatic formation and reduce the hydrogenolysis activity of the catalyst. The transition metal may be tungsten, and the transition metal catalyst may be supported on an oxidic support, optionally with a ceramic passivation layer lying between the support and the transition metal catalyst. The amount of gaseous oxygen used may be from about 50 ppm to about 5000 ppm, based upon the weight of the hydrocarbon.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: January 24, 1995
    Assignee: Akzo Nobel N.V.
    Inventor: Fawzy G. Sherif
  • Patent number: 5378350
    Abstract: Process and catalyst for dehydrogenation or dehydrocyclization of hydrocarbons. The catalyst consists of an aluminum oxide/chromium oxide support with promotors consisting of compounds of alkali metals and/or alkaline earth metals and compounds of metals from the third and/or fourth subgroups of the periodic table. Coke formation and side reactions can be substantially suppressed by the use of these catalysts under special operating conditions and special reactors.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: January 3, 1995
    Assignee: Linde Aktiengesellschaft
    Inventors: Heinz Zimmermann, Frederik Versluis
  • Patent number: 5378352
    Abstract: A process for producing a desulfurized gasoline boiling range product of relatively high octane number from a sulfur containing feed boiling in the naphtha boiling range by converting the feed in a single stage over a catalyst which comprises a) a substantially acidic porous refractory solid having an intermediate effective pore size and the topology of a zeolitic behaving material, which, in the aluminosilicate form, has a Constraint Index of about 1 to 12, e.g., MCM-22, b) a Group VI metal, e.g., Mo, c) a Group VIII metal, e.g., Co, and d) a suitable refractory support, e.g., Al.sub.2 O.sub.3, under hydrotreating conditions to produce a product comprising a normally liquid fraction boiling in substantially the same boiling range as the feed, but which has a lower sulfur content than the feed and which has an octane number substantially no less than the feed.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: January 3, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Thomas F. Degnan, Stuart S. Shih
  • Patent number: 5328595
    Abstract: Catalytic reforming of a naphtha feed with large-pore zeolites containing Group VIII metals and Group IA or Group IIA metal cations.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: July 12, 1994
    Assignee: Chevron Research and Technology Company
    Inventor: Andrew Rainis
  • Patent number: 5300720
    Abstract: Zeolite L containing caesium is prepared by a process in which said zeolite L is crystallised from a synthesis mixture with a molar composition (expressed as oxides) of:______________________________________ K.sub.2 O/SiO.sub.2 0.15 to 0.40 K.sub.2 O/Cs.sub.2 O 3 to 10 H.sub.2 O/K.sub.2 O 40 to 100 and SiO.sub.2 /Al.sub.2 O.sub.3 7 to 13 ______________________________________and containing 0.5 to 15 ppm (by weight) of divalent metal carbons, e.g. Mg ions. The zeolite L is used in dehydrocyclisation and/or isomerisation processes.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: April 5, 1994
    Assignee: Exxon Research & Engineering Company
    Inventors: Johannes P. Verduijn, Pieter E. Gellings
  • Patent number: 5283385
    Abstract: This invention is a process of converting n-pentane to cyclopentane. In accordance with a preferred embodiment of the invention, n-pentane feed is converted in dual temperature stage process without interstage processing of the first stage product mixture.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: February 1, 1994
    Assignee: Mobil Oil Corporation
    Inventor: Ralph M. Dessau
  • Patent number: 5221464
    Abstract: Supports for catalytic reforming catalysts are prepared by doping ZrO.sub.2 with tantalum. The catalyst may contain a Group VII or Group VIII metal and/or an acidic component.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: June 22, 1993
    Assignee: Sun Company, Inc. (R&M)
    Inventors: Vincent A. Durante, Aristides Macris, Rangasamy Pitchai, Xenophon E. Verykios
  • Patent number: 5208006
    Abstract: Crystalline molecular sieves having large pores are disclosed having at least one octahedrally coordinated site comprising titanium and at least tetrahedrally coordinated silicon in the framework.Conversion of organic compounds and removal of ions from solutions are also disclosed.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: May 4, 1993
    Assignee: Engelhard Corporation
    Inventors: Steven M. Kuznicki, Kathleen A. Thrush