Chemical Conversion Of Hydrocarbons Patents (Class 208/46)
  • Patent number: 5089115
    Abstract: Method for effecting contact of a gas with light particles of solid matter, where the particles are retained within particle retention screens to form a bed of particles and the particles move downward in plug flow by means of gravity. When the particles are light, that is, of relatively small size and low density, the velocity of the gas may be sufficiently high that downward movement of particles is hindered by the horizontal forces exerted on the particles by the flowing gas. This invention provides that gas flows through the bed of particles in a downwardly sloping direction instead of in a horizontal direction, so that the force exerted on a particle has a horizontal component and a downward vertical component. The vertical component of the force resulting from gas flow, along with the gravity force on a particle, is sufficient to overcome the frictional resistance to downward movement of a particle which results from the horizontal component of the flowing gas force.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: February 18, 1992
    Assignee: UOP
    Inventor: William J. Koves
  • Patent number: 5087347
    Abstract: A silicoaluminophosphate molecular sieve is disclosed and is characterized in that the P.sub.2 O.sub.5 to alumina mole ratio at the surface is about 0.80 or less, the P.sub.2 O.sub.5 to alumina mole ratio of the bulk is 0.96 or greater and the silicon content at the surface is greater than that of the bulk. Also described is the use of the silicoaluminophosphate molecular sieve in hydrocarbon conversion processes.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: February 11, 1992
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • Patent number: 5084159
    Abstract: The pour point and/or cloud point of the lube fractions comprising a waxy hydrocarbon feedstock containing straight and branched chain paraffins is reduced by contacting the feedstock in a dewaxing zone, preferably in the presence of added hydrogen, with a dewaxing catalyst comprising (1) an intermediate pore crystalline molecular sieve having a pore size between about 5.0 Angstroms and about 7.0 Angstroms and (2) a large pore crystalline molecular sieve having a pore size above about 7.0 Angstroms and typically selected from the group consisting of silicoaluminophosphates, ferrosilicates, aluminophosphates and Y zeolites. A hydrocarbon fraction of reduced paraffin content is recovered from the effluent of the dewaxing zone. Preferred intermediate pore crystalline molecular sieves are silicalite and a ZSM-5 type zeolite. Preferred large pore crystalline molecular sieves are silicoaluminophosphates such as SAPO-5 and ammonium exchanged and steamed Y zeolites.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: January 28, 1992
    Assignee: Union Oil Company of California
    Inventors: Suheil Abdo, Eric L. Moorehead, John W. Ward
  • Patent number: 5082990
    Abstract: A process is disclosed for reducing the concentration of light aromatics, especially benzene, in a refinery stream by catalytic alkylation using an olefin-containing stream in a distillation column.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: January 21, 1992
    Assignee: Chevron Research and Technology Company
    Inventors: C. Richard Hsieh, A. John Gloyn
  • Patent number: 5064629
    Abstract: The present invention is concerned with a synthetic crystalline titanium-boron-oxide, synthetic crystalline materials based thereon that contain an oxide of aluminum or silicon or their combination and the methods for their preparation. These materials are useful as catalysts for many reactions and in their metal-loaded form as photocatalysts for the cleavage of water.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: November 12, 1991
    Assignee: Makiki Asaoka
    Inventor: Hisatoshi Asaoka
  • Patent number: 5059299
    Abstract: Slack waxes and synthetic wax are isomerized and processed into high viscosity index and very low pour point lube base stock oils and blending stocks by the process comprising the steps of hydrotreating the wax, if necessary, to remove heteroatom and polynuclear aromatic compounds and/or deoiling the wax, if necessary, to an oil content between about 5-20% oil, isomerizing the wax over a Group VI-Group VIII on halogenated refractory metal oxide support catalyst, said isomerization being conducted to a level of conversion such that .about.40% and less unconverted wax remains in the 330.degree. C..sup.+, preferably the 370.degree. C..sup.+ fraction sent to the dewaxer. The total isomerate from the isomerization unit is fractionated into a lube oil fraction boiling at 330.degree. C..sup.+, preferably 370.degree.p9 C..sup.+. This oil fraction is solvent dewaxed preferably using MEK/MIBK at 20/80 ratio and unconverted wax is recycled to the isomerization unit.
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: October 22, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Ian A. Cody, James D. Bell, Theodore H. West, William A. Wachter, Biddanda U. Achia
  • Patent number: 5057203
    Abstract: The invention relates to framework gallium containing ultrastable Y having a framework (silica:alumina+gallium oxide) SiO.sub.2 /(Al.sub.2 O.sub.3 +Ga.sub.2 O.sub.3) mole ratio of 18:1 which contains at least 2.2% framework gallium. Moreover, the invention includes use of the framework gallium containing ultrastable Y in hydrocarbon conversion processes, such as reforming, catalytic cracking and aromatization.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: October 15, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Cynthia T. Chu, Randall D. Partridge, Suzanne E. Schramm
  • Patent number: 5051246
    Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form the chemical composition: m'R(X.sub.n Al.sub.q P.sub.x)O.sub.2, wherein R represents 1,3-diaminopropane, X represents one or more elements which can be substituted for Al and/or P, whereinm'=0.01-0.33n=0-0.40q=0.30-0.60x=0.30-0.60and wherein n+q+x=1 and having an X-ray diffraction pattern containing at least the lines as given in Table A or B.The compounds can be prepared from a forming solution or gel comprising a source of aluminum, a source of phosphorus, 1,3-diaminopropane and optionally a source of at least one component X, wherein the appropriate forming components are initially present in certain molar ratios and which mixture is kept at elevated temperature for a period of time sufficient to produce a crystalline aluminophosphate or related compounds.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: September 24, 1991
    Assignee: Shell Oil Company
    Inventors: David M. Clark, Ronald J. Dogterom
  • Patent number: 5049366
    Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form the chemical composition:m'R(X.sub.n Al.sub.q P.sub.x)O.sub.2, wherein R represents ethylenediamine, X represents one or more elements which can be substituted for Al and/or P, whereinm'=0.01-0.33n=0-0.50q=0.30-0.60x=0.30-0.60and wherein n+q+x=1.The compounds can be prepared from a forming solution or gel comprising a source of aluminum, a source of phosphorus, ethylenediamine and optionally a source of at least one component X, which mixture is kept at elevated temperature for a period of time sufficient to produce a crystalline aluminophosphate or related compound followed by separating off the crystalline product obtained and drying, and which may subsequently be calcined.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: September 17, 1991
    Assignee: Shell Oil Company
    Inventors: David M. Clark, Ronald J. Dogterom
  • Patent number: 5045293
    Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form the chemical composition: m.sup.1 R(Al.sub.q P.sub.x)O.sub.2, wherein R represents ethylenediamine, whereinm.sup.1 =0.01-0.33q=0.30-0.60x=0.30-0.60and wherein q+x=1 and which have a distinct X-ray diffraction pattern.The compounds can be prepared from a forming solution or gel comprising a source of aluminum, a source of phosphorus, a source of ethylenediamine and optionally a source of at least one component X, wherein the appropriate forming components are initially present in specific molar ratios and which mixture is kept at elevated temperature for a period of time sufficient to produce a crystalline aluminophosphate or related compound followed by separating off the crystalline product obtained and drying, and which may subsequently be calcined.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: September 3, 1991
    Assignee: Shell Oil Company
    Inventors: David M. Clark, Ronald J. Dogterom
  • Patent number: 5041205
    Abstract: A crystalline material having, in the dehydrated form, the empirical formula:m(M.sub.2/a O):X.sub.z O.sub.xz/2 :.sub.y YO.sub.2 (I)in which m is 0.5 to 1.5; M is a cation of valency a; X is a metal of valency x, selected from aluminium, boron, gallium, zinc, iron and titanium; z is 2 when x is an odd number, and z is 1 when x is an even number; y is at least 5; and Y is silicon or germanium; and having, in the calcined hydrogen form, an X-ray diffraction pattern including significant peaks substantially as shown in Table I herein. The material has been designated SUZ-2, and is used in the conversion of hydrocarbons or oxygenates.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: August 20, 1991
    Assignee: The British Petroleum Company p.l.c.
    Inventor: Sami A. I. Barri
  • Patent number: 5035870
    Abstract: Crystalline aluminophosphates and related compounds having in the as-synthesized anhydrous form the chemical composition: m'R(X.sub.n Al.sub.q P.sub.x)O.sub.2, wherein R is derived from a 2,2'-bipyridyl moiety, X represents one or more elements which can be substituted for Al and/or P, whereinm'=0.01-0.33n=0-0.40q=0.30-0.60x=0.30-0.60and wherein n+q+x=1.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: July 30, 1991
    Assignee: Shell Oil Company
    Inventors: David M. Clark, Ronald J. Dogterom
  • Patent number: 5030337
    Abstract: There is provided an aluminum-containing aluminosilicate zeolite corresponding to the substantially aluminum free silicate zeolite described in the Hinnenkamp et al U.S. Pat. No. 4,376,757. Also provided are methods for making this aluminosilicate zeolite and methods for the catalytic conversion of organic charges to desired products with this aluminosilicate zeolite.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: July 9, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Pochen Chu, Joseph A. Herbst, Donald J. Klocke, James Vartuli
  • Patent number: 5028406
    Abstract: A crystalline, galliosilicate molecular sieve having the mordenite structure and the following composition expressed in terms of oxide mole ratios in the anhydrous state:Ga.sub.2 O.sub.3 :xSiO.sub.2 :yM.sub.2 O:tQ.sub.2 Owhere M is an alkali metal, preferably sodium, Q is a quaternary ammonium cation, preferably a benzyltriethylammonium cation, x equals 5.0 to 30, y equals 0.1 to 0.99, preferably 0.40 to 0.90, t equals 0.01 to 0.9, preferably 0.1 to 0.6 and yet equals about 1.0. The crystalline, galliosilicate molecular sieve of the invention may be employed, after reducing its alkali metal content and decomposing Q, as a component of a catalyst which can be used in a variety of chemical conversion processes.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: July 2, 1991
    Assignee: Union Oil Company of California
    Inventor: Mario L. Occelli
  • Patent number: 5026943
    Abstract: This invention relates to catalytic conversion of organic compounds over MCM-35, a new crystalline material exhibiting a distinctive X-ray diffraction pattern. The conversion process includes the mechanisms of cracking, hydrocracking, dewaxing, dehydrogenation and aromatic alkylation.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: June 25, 1991
    Assignee: Mobil Oil Corp
    Inventors: Mae K. Rubin, Pochen Chu
  • Patent number: 5024752
    Abstract: Heavy resid oils are upgraded by a thermal treatment under liquid coking conditions to evolve two at least partially immiscible liquid phases. The lighter gas oil phase is then separated from the heavier liquid coke phase by decantation.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: June 18, 1991
    Assignee: Mobil Oil Corporation
    Inventor: Tsoung Y. Yan
  • Patent number: 5021141
    Abstract: This invention relates to a new form of crystalline material identified as ZSM-12 type, to a new and useful improvement in sunthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: June 4, 1991
    Assignee: Mobil Oil Corp.
    Inventor: Mae K. Rubin
  • Patent number: 5019240
    Abstract: Process for hydrocracking a crude oil feed, hydrocracking catalyst employed therein and the process for its preparation.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: May 28, 1991
    Assignee: UOP
    Inventors: Donald F. Best, Gary N. Long, Regis J. Pellet, Jule A. Rabo, Edward T. Wolynic
  • Patent number: 5011591
    Abstract: New crystalline titanium molecular sieve zeolite compositions having a pore size of about 8 Angstrom Units are disclosed together with methods for preparing the same and organic compound conversions.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: April 30, 1991
    Assignee: Engelhard Corporation
    Inventor: Steven M. Kuznicki
  • Patent number: 5007997
    Abstract: A crystalline zeolite SSZ-26 is prepared using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a template. Also disclosed is a process for converting hydrocarbons with crystalline zeolite SSZ-26.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: April 16, 1991
    Assignee: Chevron Research Company
    Inventors: Stacy I. Zones, Donald S. Santilli, James Ziemer, Dennis L. Holtermann, Theresa A. Pecoraro, Robert A. Innes
  • Patent number: 5008094
    Abstract: Crystalline (metallo)silicates having in the as-synthesized, anhydrous form a molar composition expressed by the formula:(0-9)M.sub.2/n O.(4-9)R.sub.2 O.100SiO.sub.2. (0-2)X.sub.2 O.sub.3,wherein M is an alkali or alkaline earth metal ion having a valency n, R represents a tetramethylammonium cation or a precursor thereof, X represents at least one of Al, Fe, B or Ga, and having a specific X-ray diffraction pattern.The silicates can be prepared from an aqueous mixture comprising a source of silicon, optionally a source of at least one of aluminium, iron boron or gallium, and a source of tetramethylammonium cations or precursors thereof, which mixture is kept at a temperature of between 140.degree.-240.degree. C. whereby the following requirement is fulfilled: T.gtoreq.244.5-18.2 ln t, wherein T is the temperature (in .degree.C.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: April 16, 1991
    Assignee: Shell Oil Company
    Inventors: Johannes J. Keijsper, Munro Mackay, Martin F. M. Post
  • Patent number: 4996385
    Abstract: Crystalline silica-titania catalyst compositions, optionally containing magnesium, are disclosed; the titanium is introduced through the use of organo-titanate chelates wherein the titanium has a coordination number of at least 5. The compositions are used in acid-catalyzed reactions such as alkylation reactions.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: February 26, 1991
    Assignee: Aristech Chemical Corporation
    Inventors: Leonard A. Cullo, Francis J. Shiring, III
  • Patent number: 4990240
    Abstract: Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a vanadium passivator.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: February 5, 1991
    Assignee: Chevron Research Company
    Inventors: Eugene A. Pasek, Norman C. Morgan
  • Patent number: 4986894
    Abstract: A process for dewaxing waxy hydrocarbon feedstocks to produce distillate fuels or lubricant stocks having improved pour point properties. The process comprises catalytic hydroisomerization of the feedstock over catalyst comprising a synthetic porous crystalline material characterized in its calcined form by an X-ray diffraction pattern including interplanar d-spacings at 12.36.+-.0.4, 11.03.+-.0.2, 8.83.+-.0.14, 6.18.+-.0.12, 6.00.+-.0.10, 4.06.+-.0.07, 3.91.+-.0.07 and 3.42.+-.0.06 Angstroms, and an Alpha Value of 10 or less.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: January 22, 1991
    Assignee: Mobil Oil Corp.
    Inventors: Kathleen M. Keville, Quang N. Le, Wang-Tsee T. Mo, Mae K. Rubin
  • Patent number: 4960578
    Abstract: The present invention relates to a gallo-aluminosilicate zeolite designated as ECR-10 which contains cesium. It also relates to a process for preparation of the zeolite. It may be employed in absorbent or separation applications, particularly in separation of small molecules.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: October 2, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: David E. W. Vaughan, Karl G. Strohmaier
  • Patent number: 4946578
    Abstract: A process for chemically modifying at least one component of a hydrocarbon-based material comprising: contacting the hydrocarbon-based material with at least one metal component selected from the group consisting of vanadium components in which vanadium is present in the 5+ oxidation state in an amount effective to promote the chemical modification of at least one component of the hydrocarbon-based material, iron components in which iron is present in the 3+ oxidation state in an amount effective to promote the chemical modification of at least one component of the hydrocarbon-based material, managanese components in which manganese is present in the 3+ oxidation state in an amount effective to promote the chemical modification of at least one component of the hydrocarbon-based material and mixtures thereof, and at least one oxygen transfer agent in an amount effective to do at least one of the following: maintain at least partially the promoting activity of the metal component; produce at least a portion of
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: August 7, 1990
    Assignee: Ensci, Inc.
    Inventors: Thomas J. Clough, John W. Sibert
  • Patent number: 4944863
    Abstract: This invention relates to a process in which the addition of a substantially inert solvent to a heavy petroleum stock permits high conversion hydrocracking and hydrogen addition to be accomplished in the absence of catalyst or additive.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: July 31, 1990
    Assignee: Mobil Oil Corp.
    Inventors: C. Morris Smith, Dennis E. Walsh
  • Patent number: 4941963
    Abstract: This invention relates to a new form of crystalline material identified as ZSM-11, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: July 17, 1990
    Assignee: Mobil Oil Corp.
    Inventor: Ernest W. Valyocsik
  • Patent number: 4933068
    Abstract: This invention relates to a hydrocarbon conversion process using a crystalline composition having a three-dimensional microporous structure of MA.sub.2 units where A is sulfur or selenium and having the empirical formula expressed in molar ratios: xR:MA.sub.2+0.2 :ZH.sub.2 O where R represents at least one organic templating agent present in the intracrystalline pore system, x is the moles of R, z is the moles of water and M is germanium or tin. This invention also relates to a composition having the empirical formula expressed in molar ratios: XR:M.sub.1-y M.sup.'y A.sub.2+0.2 :ZH.sub.2 O where M' is a metal such as cobalt, zinc, manganese, iron, nickel, cooper, cadmium and gallium.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: June 12, 1990
    Assignee: UOP
    Inventors: Robert L. Bedard, Lawrence D. Vail, Stephen T. Wilson, Edith M. Flanigen
  • Patent number: 4927524
    Abstract: A process for producing metallurgical coke from a hydrocarbon residuum characterized by high vanadium and high sulphur contents comprises coking a hydrocarbon residuum in a coking drum in the presence of an additive selected from the group consisting of carbonates and hydroxides of sodium, potassium and calcium and mixtures thereof and an oxidizing agent selected from the group consisting of water, carbon dioxide and mixtures thereof.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: May 22, 1990
    Assignee: Intevep, S.A.
    Inventors: Domingo Rodriguez, Cebers Gomez
  • Patent number: 4925548
    Abstract: This invention relates to a new form of crystalline material identified as ZSM-35, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: May 15, 1990
    Assignee: Mobil Oil Corp.
    Inventor: Mae K. Rubin
  • Patent number: 4923588
    Abstract: Waxes, for example waxes obtained from dewaxing hydrocarbon oils, called slack waxes, and synthetic waxes such as those obtained by Fischer-Tropsch processes, are isomerized into oils boiling in the lube oil boiling range, e.g., 370.degree. C.+, by contacting the wax under isomerization conditions and in the presence of hydrogen with an isomerization catalyst comprising a noble Group VIII metal on a small particle size refractory metal oxide support having a low total fluoride content catalyst wherein the total fluoride content is in the range of 0.1 to up to but less than 2 wt % fluoride and the support has a particle diameter of less than 1/16 inch. The small particle size refractory metal oxide support is preferably alumina or material containing alumina, preferably predominantly (i.e., >50%) alumina, more preferably an alumina such as gamma or eta. The most preferred alumina is 1/20 inch alumina trilobes. Noble metal content ranges from 0.1 to 2.0 wt %.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: May 8, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Ian A. Cody, David L. Brown
  • Patent number: 4919786
    Abstract: A process for selectively producing middle distillate fuel products from paraffin waxes such as slack wax and Fischer-Tropsch wax by hydroisomerizing the wax to convert 60-95 weight percent per pass of the 700.degree. F..sup.+ fraction contained in said wax. The catalyst employed is a fluorided Group VIII metal-on-alumina catalyst where the fluoride within the catalyst is present predominately as aluminum fluoride hydroxide hydrate. The preferred Group VIII metal is platinum.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: April 24, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Glen P. Hamner, deceased, Willard H. Sawyer, Heather A. Boucher
  • Patent number: 4913796
    Abstract: This invention relates to a new form of crystalline silicoaluminophosphate, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: April 3, 1990
    Assignee: Mobil Oil Corp.
    Inventor: Ernest W. Valyocsik
  • Patent number: 4913795
    Abstract: This invention relates to a new form of crystalline metalloaluminophosphate, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: April 3, 1990
    Assignee: Mobil Oil Corp.
    Inventor: Ernest W. Valyocsik
  • Patent number: 4914255
    Abstract: A method is disclosed for increasing heat transfer efficiency between a conduit and a gas flowing through the conduit by fluidizing in the gas stream a Geldart Type A powder having controlled fines content. The invention further provides a method for integrating two fluid beds to transfer heat from a heat source to a fluid-bed reaction zone.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: April 3, 1990
    Assignee: Mobil Oil Corp.
    Inventors: Amos A. Avidan, Reuel Shinnar
  • Patent number: 4906353
    Abstract: A dual-mode hydrocarbon conversion process is provided which comprises reforming a sulfur-, nitrogen- and/or olefin-containing hydrocarbon feedstock, e.g. an FCC gasoline, in a conversion unit operated under reforming conditions employing as catalyst a noble metal-containing crystalline silicate having a Constraint Index of not greater than about 2 and a framework SiO.sub.2 /Al.sub.2 O.sub.3 ratio of at least about 50 to provide a relatively high yield of high octane reformate and a relatively low yield of C.sub.3-4 hydrocarbons prior to or following hydrocracking the feedstock in the unit operated under hydrocracking conditions in the presence of the aforesaid catalyst to provide a relatively low yield of high octane hydrocrackate and a relatively high yield of C.sub.3-4 hydrocarbons. The latter can be separated from the liquid product and processed in a gas plant to provide LPG products.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: March 6, 1990
    Assignee: Mobil Oil Corp.
    Inventors: Lloyd L. Breckenridge, Catherine L. Markham
  • Patent number: 4902406
    Abstract: A process for preparing a new zeolite, designated ZSM-22, is disclosed and claimed. The process comprises preparing a reaction mixture comprised of sources of an alkali or alkaline earth metal, alumina, silica, alkane diamine and water, and having the following composition, in terms of mole ratios of oxides:______________________________________ SiO.sub.2 /Al.sub.2 O.sub.3 = 20 to .infin. H.sub.2 O/SiO.sub.2 = 10 to 100 OH.sup.- /SiO.sub.2 = 0 to 0.3 M.sup.+ /SiO.sub.2 = 0 to 2.0 RN/SiO.sub.2 = 0.01 to 2.0 ______________________________________wherein RN is a C.sub.2 -C.sub.12 alkane diamine of the formula H.sub.2 N--(CH.sub.2).sub.n --NH.sub.2, wherein n=2 to 10, and M is an alkali or alkaline earth metal, e.g., Na, K, Cs, Li, Ca or Sr, and maintaining the reaction mixture at crystallization conditions until crystals of the ZSM-22 zeolite are formed.
    Type: Grant
    Filed: July 10, 1984
    Date of Patent: February 20, 1990
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4898660
    Abstract: A novel family of crystalline, microporus aluminophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures of aluminophosphate gels containing a molecular structure forming template. The family comprises a number of distinct species, each with a unique crystal structure. Calcination removes volatile extraneous matter from the intracrystalline void space and yields microporus crystalline adsorbents with uniform pores, the dimensions of which vary, among the individual species, from about 3A to 10A diameter. The composition exhibit properties somewhat analogous to zeolitic molecular sieves which render them useful as catalysts or catalyst bases in chemical reactions such as hydrocarbon conversions.
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: February 6, 1990
    Assignee: Union Carbide Corporation
    Inventors: Stephen T. Wilson, Brent M. Lok, Edith M. Flanigen
  • Patent number: 4880520
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of TiO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Ti.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Ti.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of titanium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: November 14, 1989
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
  • Patent number: 4877593
    Abstract: This invention relates to a new form of crystalline aluminophosphate, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: October 31, 1989
    Assignee: Mobil Oil Company
    Inventor: Ernest W. Valyocsik
  • Patent number: 4871444
    Abstract: A method for improving the cetane number of an aromatic hydrocarbon oil such as FCC light cycle oil and thereby increase its value as a blending stock for diesel fuel or heating oil. In one embodiment, the FCC light cycle oil is alkylated in the presence of a solid acidic catalyst and with a linear mono-olefin having a chain length of at least five carbon atoms. In another embodiment, the light cycle oil is alkylated with an olefin having three to nine carbon atoms or a mixture thereof and with ZSM-20 as catalyst to decrease the frequency of catalyst regeneration.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: October 3, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Nai Y. Chen, Billy K. Huh, Anil B. Ketkar, Chaya Venkat
  • Patent number: 4869803
    Abstract: A hydrocarbon conversion catalyst useful for converting hydrocarbon feeds to midbarrel products is prepared by calcining a crystalline aluminosilicate zeolite having cracking activity in the presence of added steam at a water vapor partial pressure greater than about 2.0 p.s.i.a. under conditions such that the unit cell size of the zeolite is reduced to a value between about 24.32 and about 25.45 Angstroms while the water vapor sorptive capacity of the zeolite is decreased to a value between about 5 and about 15 weight percent of the zeolite at 25.degree. C. and a p/p.degree. value of 0.10. The moderately steam calcined zeolite is mixed with a porous, inorganic refractory oxide component and the resultant mixture is extruded to form particles which are broken into extrudates normally ranging in length between 1/16 and 1/2 inch. The extruded particles are then calcined in the presence of added steam at a water vapor partial pressure greater than about 2.0 p.s.i.a.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: September 26, 1989
    Assignee: Union Oil Company of California
    Inventor: John W. Ward
  • Patent number: 4869804
    Abstract: A process for the thermal conversion of various fossil organic materials such as heavy crude oils, heavy petroleum fractions or refining residues, is described. According to the invention, the charge is subjected to thermal processing in the presence of a minor proportion of at least one radical-generating monooxygenated compound, containing at least one heteroelement selected from sulfur, and nitrogen and in which the oxygen is borne by said heteroelement. The conversion is improved with a composition comprising a hydrogen donor diluent and this monooxygenated compound in a weight ratio of 0.2:1 to 400:1. The invention is useful in the petroleum industry and the coal industry and particularly in the process of hydrovisbreaking.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: September 26, 1989
    Assignee: Institut Francais du Petrole
    Inventors: Pierre Le Perchec, Bernard Fixari, Beatrice Debled, Michel Thomas
  • Patent number: 4861457
    Abstract: A novel family of crystalline, microporous gallophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures from gallophosphate gels containing a molecular structure-forming template. The family comprises distinct species, each with a unique crystal structure. Calcination removed volatile extraneous matter from the intracrystalline void space and yields microporous crystalline adsorbents with pores, the dimensions of which vary, among the individual species, from about 3A to 10A in diameter. The compositions represent a new class of adsorbents of the molecular sieve type, and also exhibit properties somewhat analogous to zeolitic molecular sieves which render them useful as catalysts or catalyst based in chemical reactions such as hydrocarbon conversion.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: August 29, 1989
    Assignee: UOP
    Inventors: Stephen T. Wilson, Naomi A. Woodard, Edith M. Flanigen
  • Patent number: 4851106
    Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Cr.sub.x Al.sub.Y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Cr.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represents the mole fractions of chromium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: July 25, 1989
    Assignee: UOP
    Inventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
  • Patent number: 4846956
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of MnO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Mn.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Mn.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of manganese, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: July 11, 1989
    Assignee: UOP
    Inventors: Brent M. Lok, Bonita K. Marcus, Edith M. Flanigen
  • Patent number: 4844790
    Abstract: Delaminated clays whose X-ray diffraction patterns do not contain a distinct first order reflection are prepared from synthetic and natural swelling clays whose particles have a length-to-width ratio greater than about 2.0, a length-to-thickness ratio greater than about 5.0 and are comprised of randomly oriented platelets by reacting the clay with a pillaring agent selected from the group consisting of polyoxymetal cations, mixtures of polyoxymetal cations, colloidal particles comprising alumina, silica, titania, chromia, tin oxide, antimony oxide or mixtures thereof, and cationic metal clusters comprising nickel, molybdenum, cobalt or tungsten and then subjecting the resulting reaction products to drying in a gaseous medium, preferably spray drying. The resulting acidic delaminated clays, which contain the microporosity associated with zeolites and pollared clays and the macroporosity associated with amorphous aluminosilicates, may be used as the active component of cracking and hydroprocessing catalysts.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: July 4, 1989
    Assignee: Union Oil Company of California
    Inventor: Mario Occelli
  • Patent number: 4839021
    Abstract: A method of producing pyrolytic oils suitable for petroleum reprocessing is disclosed. According to the invention, petroleum derived organic sludges or oil residues in a solid/liquid phase are subjected to vacuum pyrolysis under temperature and sub-atmospheric pressure conditions such as to prevent gas and vapor phase secondary cracking reactions and to thereby increase the yield of pyrolytic oils to the detriment of hydrocarbon gases. About 97% of the organic matter content of the sludges and about 75% of the organic matter content of the oil residues can be converted into pyrolytic oils suitable for petroleum reprocessing.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: June 13, 1989
    Assignee: Recherche Carbovac Inc.
    Inventor: Christian Roy
  • Patent number: 4824554
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of CoO.sub.2, AlO.sub.2, SiO.sub.2, PO.sub.2 and tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Co.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Co.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of cobalt, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: April 25, 1989
    Assignee: UOP
    Inventors: Brent M. Lok, Bonita K. Marcus, Edith M. Flanigen