Using B- Or P-containing Catalyst Patents (Class 585/740)
  • Publication number: 20150005542
    Abstract: Processes for the disproportionation and isomerization of a C5 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a halocarbon carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Stuart Smith, Alakananda Bhattacharyya, Dana K. Sullivan
  • Publication number: 20150005554
    Abstract: Processes for the disproportionation and isomerization of a C4 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 300° C.
    Type: Application
    Filed: August 23, 2013
    Publication date: January 1, 2015
    Applicant: UOP LLC
    Inventors: Stuart Smith, Alakananda Bhattacharyya
  • Publication number: 20150005560
    Abstract: A process of tuning a hydrocarbon product composition is described. The process involves selecting paraffins for reaction. The equilibrium constants for reactions of the selected paraffins can be used to select appropriate feed ratios, or an equilibrium composition as function of C/H molar ratio. A selected feed is reacted to obtain the product. Equilibrium product compositions and non-equilibrium product compositions can be obtained using the process.
    Type: Application
    Filed: June 12, 2014
    Publication date: January 1, 2015
    Inventors: Stuart Smith, Alakananda Bhattacharyya, Peter K. Coughlin
  • Publication number: 20150005541
    Abstract: Processes for the disproportionation and isomerization of a C7 hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Stuart Smith, Alakananda Bhattacharyya
  • Publication number: 20150005540
    Abstract: Processes for the disproportionation and isomerization of a hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below about 200° C.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Stuart Smith, Alakananda Bhattacharyya
  • Publication number: 20150005546
    Abstract: Processes for the disproportionation and isomerization of a hydrocarbon feed using a liquid catalyst comprising an ionic liquid and a carbocation promoter are described. The ionic liquid is unsupported, and the reactions occur at temperatures below the decomposition temperature of the ionic liquid, typically below about 250° C. The process includes isomerizing a hydrocarbon feed comprising normal C6 alkane or branched C6 alkane by contacting the hydrocarbon feed with a liquid catalyst in a reaction zone to form a product mixture. Isomerization reaction mixtures are also described.
    Type: Application
    Filed: June 23, 2014
    Publication date: January 1, 2015
    Inventors: Alakananda Bhattacharyya, Stuart Smith, Dana K. Sullivan, Susie C. Martin
  • Patent number: 8003834
    Abstract: An integrated process has been developed for producing diesel boiling range fuel from renewable feedstocks such as animal and plant oils and using a byproduct naphtha as an extraction solvent in the generation of the renewable feedstock. The process involves treating a renewable feedstock by hydrogenating and deoxygenating to provide a hydrocarbon fraction useful as a diesel fuel or diesel boiling range fuel blending component. A byproduct naphtha stream is used as an extraction solvent in a process for the generation of the renewable feedstock. If desired, the hydrocarbon fraction can be isomerized to improve cold flow properties.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: August 23, 2011
    Assignee: UOP LLC
    Inventors: Terry L. Marker, Graham D. Ellis, Christopher D. Gosling
  • Patent number: 7838272
    Abstract: The present invention is generally directed to systems and methods for integrating gas-to-liquids (GTL) processing with biofuels production. In some embodiments of the present invention, carbon dioxide (CO2) generated by GTL processing is used to support grovel (via photosynthesis) of microalgae. In some such embodiments, the microalgae can be further processed to yield a diesel fuel that can be used either by itself, or mixed with fuel produced by the GTL processing.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: November 23, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventor: Stephen Joseph Miller
  • Patent number: 7795483
    Abstract: The present invention is a process for producing phenyl-alkanes by paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly branched olefin. The adsorptive separation step employs a silicalite adsorbent and, as the desorbent, a C5-C8 linear paraffin, a C5-C8 cycloparaffin, a branched paraffin such as isooctane, or mixtures thereof. The effluent of the alkylation zone comprises paraffins that are recycled to the adsorptive separation step or to the dehydrogenation step. This invention is also a process that that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: September 14, 2010
    Assignee: UOP LLC
    Inventors: Santi Kulprathipanja, Richard E. Marinangeli, Stephen W. Sohn, Thomas R. Fritsch, R. Joe Lawson
  • Publication number: 20080194400
    Abstract: The invention relates to a multi-layer catalyst made from niobium for the catalytic conversion of hydrocarbons, comprising a) a support component made from a doped or undoped oxide or hydroxide of an element of the V sub-group of the periodic table, or mixtures thereof, b) a layer of a promoter compound, selected from oxygen, sulphur or phosphorus compounds of an element of the VI, VII and VIII sub-group or a phosphoxy compound and mixtures thereof and c) a layer comprising a compound of platinum metal. The invention further relates to a method for production of the catalyst and the use thereof.
    Type: Application
    Filed: July 12, 2006
    Publication date: August 14, 2008
    Inventor: Friedrich Schmidt
  • Patent number: 7399896
    Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a phosphorus component, and at least one platinum-group metal component which is preferably platinum. The catalyst has a structure other than a hetropoly anion structure.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: July 15, 2008
    Assignee: UOP LLC
    Inventors: Ralph D. Gillespie, Feng Xu
  • Patent number: 7311815
    Abstract: A method of preparing high linear paraffin or high end-chain monomethyl content products is accomplished by converting synthesis gas in a Fischer-Tropsch reaction to hydrocarbon products. These may be hydrotreated to provide an n-paraffin content of greater than 50% by weight, with substantially all branched paraffins being monomethyl end-chain branched paraffins. At least one non-linear paraffin isomer, which may be a monomethyl paraffin isomer, may be separated from the hydrocarbon products through distillation to provide an n-paraffin product having an n-paraffin content percentage by weight of the n-paraffin product that is greater than the initial n-paraffin content.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: December 25, 2007
    Assignee: Syntroleum Corporation
    Inventor: Armen N. Abazajian
  • Patent number: 7151199
    Abstract: Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the catalyst. The halogen may be removed by one of several methods. One method includes heating the catalyst in a low moisture environment, followed by contacting the heated catalyst with air and/or steam. Another method includes steam-treating the catalyst at a temperature from 400° C. to 1000° C. The hydrocarbon or oxygenate conversion processes include the conversion of oxygenates to olefins, the conversion of oxygenates and ammonia to alkylamines, the conversion of oxygenates and aromatic compounds to alkylated aromatic compounds, cracking and dewaxing.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: December 19, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
  • Patent number: 6723889
    Abstract: A process for producing a diesel fuel having at least 70% C10+ paraffins, wherein the iso-paraffin to normal paraffin mole ratio is 5:1 and higher. This diesel fuel is produced by from a feed containing at least 40% C10+ normal paraffins and at least 20% C26+ normal paraffins. It is produced by contacting that feed in an isomerization/cracking reaction zone a feed with a catalyst comprising a SAPO-11 and platinum in the presence of hydrogen (hydrogen:feed ratio of from 1,000 to 10,000 SCFB) at a temperature of from 340° C. to 420° C., a pressure of from 100 psig to 600 psig, and a liquid hourly space velocity of from 0.1 hr−1 to 1.0 hr−1.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: April 20, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stephen J. Miller, Arthur John Dahlberg, Kamala R. Krishna, Russell R. Krug
  • Patent number: 6670516
    Abstract: A process for producing phenyl-alkanes by paraffin dehydrogenation followed by olefin isomerization and then by alkylation of a phenyl compound by a lightly branched olefin is disclosed. An effluent of the alkylation section comprises paraffins that are recycled to the dehydrogenation step. A process that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups to produce modified alkylbenzene sulfonates is also disclosed. In addition, the compositions produced by these processes, which can comprise detergents, lubricants, and lubricant additives, are disclosed.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: December 30, 2003
    Assignee: UOP LLC
    Inventors: Richard E. Marinangeli, Leonid B. Galperin, Thomas R. Fritsch, R. Joe Lawson
  • Patent number: 6235960
    Abstract: A process for improving the pour point of a feed comprising paraffins containing more than 10 carbon atoms, in which the feed to be treated is brought into contact with a catalyst comprising at least one zeolite with structure type MTT, TON or FER or any possible combination of these three, at least one hydro-dehydrogenating element selected from elements from group VIB and group VIII of the periodic table, at least one deposited promoter element (boron, silicon, phosphorous), optionally at least one group VIIA element, optionally at least one group VIIB element, at a temperature in the range 170° C. to 500° C., a pressure in the range 1 to 250 bars and at an hourly space velocity in the range 0.05 to 100 h−1, in the presence of hydrogen in an amount of 50 to 2000 l/l of feed. The oils obtained have good pour points and high viscosity indices (VI). The process is also applicable to gas oils, and other feeds requiring a reduction in pour point.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: May 22, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Eric Benazzi, Slavik Kasztelan, Nathalie George-Marchal
  • Patent number: 6204426
    Abstract: A process for producing a diesel fuel having at least 70% C10+ paraffins, wherein the iso-paraffin to normal paraffin mole ratio is 5:1 and higher. This diesel fuel is produced by from a feed containing at least 40% C10+ normal paraffins and at least 20% C26+ normal paraffins. It is produced by contacting that feed in an isomerization/cracking reaction zone a feed with a catalyst comprising a SAPO-11 and platinum in the presence of hydrogen (hydrogen:feed ratio of from 1,000 to 10,000 SCFB) at a temperature of from 340° C. to 420° C., a pressure of from 100 psig to 600 psig, and a liquid hourly space velocity of from 0.1 hr−1 to 1.0 hr−1.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: March 20, 2001
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stephen J. Miller, Arthur John Dahlberg, Kamala R. Krishna, Russell R. Krug
  • Patent number: 6198015
    Abstract: The invention concerns a process for selective hydroisomerization of compounds with an n-alkane chain containing more than 10 carbon atoms, in which the compound to be treated is brought into contact with a catalyst comprising at least one hydro-dehydrogenating element and at least one molecular sieve having a one- or two-dimensional pore network, the accessible pore openings of which are delimited by 10 oxygen atoms, and a distance termed the bridging distance between the pores of less then 0.70 nm, and the zeolite is such that a catalyst which undergoes a standard n-heptadecane isomerization test has, for a conversion of 95%, a selectivity of at least 70% for isomerized products, and the catalyst contains at least 5% by weight of at least one hydro-dehydrogenating element selected from the group formed by non noble GVIII metals, GVIB metals, and niobium, and the catalyst preferably contains phosphorous. The sieve is preferably a NU-10, NU-23, NU-87, EU-13 or Theta-1 zeolite.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: March 6, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Christian Marcilly, Eric Benazzi, Nathalie George-Marchal
  • Patent number: 6187981
    Abstract: The present invention is a process for producing aryl-alkanes by paraffin isomerization followed by paraffin dehydrogenation and then by alkylation of an aryl compound by a lightly branched olefin. The effluent of the alkylation zone comprises paraffins that are recycled to the isomerization step or to the dehydrogenation step. This invention is also a process that that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: February 13, 2001
    Assignee: UOP LLC
    Inventors: Richard E. Marinangeli, R. Joe Lawson, Leonid B. Galperin, Thomas R. Fritsch
  • Patent number: 5990371
    Abstract: The invention concerns a process for the selective hydroisomerisation of compounds containing at least one n-alkane chain containing more than 10 carbon atoms, in which the compound to be treated is brought into contact with a catalyst comprising at least one hydro-dehydrogenating element and at least one molecular sieve with a mono- or bidimensional pore network in which the openings of the accessible pores are delimited by 10 oxygen atoms, and the distance termed the bridge width between the pores is less than 0.70 nm, and in which the catalyst, when subjected to a standard n-heptadecane isomerization test, has a selectivity of at least 70% towards isomerized products for a conversion of 95%.The sieve is preferably a NU-10, NU-23, NU-87, EU-13 or Theta-1 zeolite.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: November 23, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Johan Martens, Wim Souverijns, Rudy Parton, Gilbert Froment, Eric Benazzi, Nathalie George Marchal, Christian Marcilly
  • Patent number: 5977425
    Abstract: It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: November 2, 1999
    Assignee: Exxon Research and Engineering Co
    Inventors: Dee A. Brandes, David N. Zinkie, Sandra Jane Alward, William J. Murphy, Ian A. Cody, Thomas J. Ford
  • Patent number: 5942104
    Abstract: This invention provides a method for preparing non-zeolitic molecular sieves using inexpensive reagents and at lower manufacturing cost. The method includes using a low density, small size particulate hydrated alumina, such as aluminum hydroxide, in place of aluminum alkoxides and other more costly reagents. The preferred particulate hydrated alumina has a density of less than 1.0 g/cm.sup.3, an average particle size of less than about 40 microns and an alkali content of less than 0.12 wt %.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: August 24, 1999
    Assignee: Chevron U.S.A. Inc.
    Inventor: Stephen J. Miller
  • Patent number: 5908968
    Abstract: Process for the hydroisomerization of n-paraffins in the presence of a difunctional catalyst which comprises:(a) a porous crystalline material isostructural with beta-zeolite selected from boro-silicate (BOR-B) and boro-alumino-silicate (Al-BOR-B) in which the molar SiO.sub.2 :Al.sub.2 O.sub.3 ratio is higher than 300:1;(b) one or more metal(s) belonging to Group VIIIA, selected from platinum and palladium, in an amount comprised within the range of from 0.05 to 5% by weight.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: June 1, 1999
    Assignees: Eniricerche S. p. A., Agip Petroli S. p. A.
    Inventors: Angela Carati, Cristina Flego, Vincenzo Calemma
  • Patent number: 5730858
    Abstract: The wax-containing hydrocarbon feedstocks are pre-treated by contacting them with a homogeneous solution containing 1-5 vol. % of an acid diluted in an alcohol/water mixture (preferably containing 60-90 vol. % alcohol). The pre-treated feedstock is then contacted, in the presence of hydrogen, with at least two catalysts in sequence and with no intermediate separation, comprising at least one hydrodewaxing catalyst and one hydrocracking catalyst, to recover high-grade middle distillates.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: March 24, 1998
    Assignee: Fina Research, S.A.
    Inventors: Catherine Olivier, Jacques Grootjans
  • Patent number: 5723716
    Abstract: It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: March 3, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Dee Anne Brandes, David N. Zinkie, Sandra J. Alward
  • Patent number: 5510561
    Abstract: A discrete catalyst and processes for the alkylation of isoalkanes with alkenes under homogenous fluid conditions. The catalyst is formed by contacting, under fluid conditions, a homogenous fluid containing a paraffin hydrocarbon having from 4 to 12 carbon atoms with a Lewis acid/protic Bronsted acid pair to produce a discrete catalytic complex that is soluble in the fluid. The discrete catalyst is the reaction product of the acid pair and alkanes and includes hydrocarbon ligands of limited chain length rendering it soluble in the fluid. The catalyst is active for the alkylation of isoalkanes, under homogenous fluid conditions.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: April 23, 1996
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Larry G. Sherman, William A. Yuill
  • Patent number: 5489733
    Abstract: The present invention is directed to novel catalyst compositions, their preparation, and their use in a selective paraffin isomerization process. The solid acid catalyst compositions comprise a zirconium hydroxide support, a Group VIII metal, and a heteropolyacid selected from the group consisting of the exchanged aluminum salt of 12-tungstophosphoric acid, the exchanged salt of 12-tungstosilicic acid, and mixtures thereof. The use of said catalysts in an isomerization process comprises contacting said catalysts with a feed comprising C.sub.n or C.sub.n + paraffins, wherein n=4.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: February 6, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: Stuart L. Soled, Gary B. McVicker, Sabato Miseo, William E. Gates
  • Patent number: 5449450
    Abstract: Hydrocarbon conversion processes are described which use novel microporous compositions. These compositions have a three-dimensional microporous framework structure of ZnO.sub.2, PO.sub.2 and M'O.sub.2 tetrahedral units, and an intracrystalline pore system. The M' metal is selected from the group consisting of magnesium, copper, gallium, aluminum, germanium, cobalt, chromium, iron, manganese, titanium and mixtures thereof. Examples of the hydrocarbon conversion processes include hydrocracking, hydrotreating and hydrogenation.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: September 12, 1995
    Assignee: UOP
    Inventor: Robert L. Bedard
  • Patent number: 5413695
    Abstract: The invention provides for a process for producing lube oil having excellent viscosity and viscosity index properties and a low pour point from a solvent refined gas oil. The process comprises contacting a raffinate having a solvent dewaxed viscosity index of at least 90 and boiling above 350.degree. F. with a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and at least one Group VIII metal under dewaxing and isocracking conditions so as to produce a product having a viscosity index greater than about 110.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: May 9, 1995
    Assignee: Chevron Research and Technology Company, a Division of Chevron U.S.A. Inc.
    Inventor: Stephen J. Miller
  • Patent number: 5393407
    Abstract: A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: February 28, 1995
    Assignee: Chevron Research Company
    Inventors: Stacey I. Zones, Dennis L. Holtermann, Lawrence W. Jossens, Donald S. Santilli, Andrew Rainis
  • Patent number: 5386076
    Abstract: The present invention provides a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid, which method provides a sulfolane recycle stream which requires no further drying before charging the stream to the alkylation reaction zone.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: January 31, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Jonathan E. Child, Tomas R. Melli
  • Patent number: 5376260
    Abstract: Heavy waxy oil is dewaxed by a mild cracking and isomerization process using a catalyst comprising SSZ-32 and at least one Group VIII metal. The heavy oil contains naphthenic wax, which includes only a relatively small amount of normal alkanes. Naphthenic wax containing a minor amount of oil may also be dewaxed using the process.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: December 27, 1994
    Assignee: Chevron Research and Technology Company
    Inventors: Donald S. Santilli, Stacey I. Zones
  • Patent number: 5246566
    Abstract: The present invention relates to a process for producing a lube oil having a low pour point and excellent viscosity and viscosity index comprising isomerizing a waxy feed over a catalyst comprising a molecular sieve having generally oval 1-D pores having a minor axis between about 4.2 .ANG. and about 4.8 .ANG. and a major axis between about 5.4 .ANG. and about 7.0 .ANG. and at least one group VIII metal. SAPO-11, SAPO-31, SAPO-41, ZSM-22, ZSM-23 and ZSM-35 are examples of useful catalysts.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: September 21, 1993
    Assignee: Chevron Research and Technology Company
    Inventor: Stephen J. Miller
  • Patent number: 5230789
    Abstract: This invention relates to hydrocarbon conversion processes using a catalytic composite which is an amorphous solid solution of phosphorus, silicon and aluminum oxides. The composite is characterized in that it contains from about 5 to about 50 weight percent Al.sub.2 O.sub.3, from about 10 to about 90 weight percent SiO.sub.2 and from about 5 to about 40 weight percent P.sub.2 O.sub.5 and has pores whose average diameters range from about 30 to about 200 Angstroms. The composite is further characterized in that it has a pore volume of about 0.35 to about 0.75 cc/g and a surface area of about 200 to about 420 m.sup.2 /g. The composite may be prepared by forming a mixture of sols of alumina and silica and a phosphorus compound, gelling the mixture to form particles and then calcining the particles to provide the amorphous solid solution. The amorphous composite may be used either as is or with additional catalytic metals (selected from the metals of Group VIB and VIII of the Periodic Table) dispersed thereon.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: July 27, 1993
    Assignee: UOP
    Inventors: Tai-Hsiang Chao, Michael W. Schoonover
  • Patent number: 5198597
    Abstract: Normal olefins such as n-butenes and normal alkanes such as n-butane can be coverted to branched olefin species such as isobutylene by skeletal dehydroisomerization over catalysts preferably containing metals selected from Groups IB, IIB, IIIB, IVB, VB, VIB, VIIB, VIII and the rear earth elements which are deposited upon borosilicate zeolites having pore sizes of at least about 5 Angstroms and containing boron in the framework structure thereof. The borosilicates have sufficient acidity to catalyze the skeletal isomerization of both normal alkanes and normal olefins. The catalysts can be used to produce isoolefins for reaction with alcohols in integrated processes to produce alkyl tertiary alkyl ethers such as MTBE.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: March 30, 1993
    Assignee: Texaco Inc.
    Inventors: Chi-Lin O'Young, James E. Browne, John F. Matteo, Robert A. Sawicki, John Hazen
  • Patent number: 5135638
    Abstract: The present invention relates to a process for producing a lube oil having a low pour point and excellent viscosity and viscosity index comprising isomerizing a waxy feed over a catalyst comprising a molecular sieve having generally oval 1-D pores having a minor axis between about 4.2 .ANG. and about 4.8 .ANG. and a major axis between about 5.4 .ANG. and about 7.0 .ANG. and at least one group VIII metal. SAPO-11, SAPO-31, SAPO-41, ZSM-22, ZSM-23 and ZSM-35 are examples of useful catalysts.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: August 4, 1992
    Assignee: Chevron Research and Technology Company
    Inventor: Stephen J. Miller
  • Patent number: 5114563
    Abstract: The catalytic conversion of hydrocarbon feedstocks is affected under effective conversion process conditions in the presence of silicoaluminophosphate-based catalyst compositions.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: May 19, 1992
    Assignee: UOP
    Inventors: Brent M. Lok, Celeste A. Messina, Robert L. Patton, Richard T. Gajek, Thomas R. Cannan, Edith M. Flanigen
  • Patent number: 5047141
    Abstract: Organic compound conversion over catalyst comprising the product of a method for controlling the catalytic activity of a large pore molecular sieve which contains framework boron is provided. Control is effected by treatment with a solution of a metal salt under conditions such that metal is incorporated into the molecular sieve framework.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: September 10, 1991
    Assignee: Mobil Oil Corporation
    Inventor: Pochen Chu
  • Patent number: 4973785
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (EL.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 (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; "EL" represents at least one element capable of forming a framework oxide unit; and "w", "x", "y" and "z" represent the mole fractions of element(s) "EL", aluminum, phosphorus and silicon, respectively, present as framework oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: November 27, 1990
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Lawrence D. Vail, Edith M. Flanigen, Robert L. Patton, Stephen T. Wilson
  • Patent number: 4967032
    Abstract: A process is disclosed for improving the thermal stability of polyalpha-olefin lubricants by contacting the lubricant with an acidic catalyst for a time and at a temperature sufficient to achieve the skeletal isomerization of the molecular structure of the lubricant. The reaction is carried out preferably on unhydrogenated synthetic lubricants in contact with Lewis acid catalysts. Following the isomerization reaction, the unsaturated lubricant is hydrogenated to produce lubricant with better thermal stability. Surprisingly, when the isomerization reaction is carried out using unsaturated oligomer produced from the oligomerization of alpha-olefins in contact with reduced Group VIB metal oxide catalyst on porous support as starting material the viscometric properties of the lubricant, e.g., viscosity and VI, are not significantly altered, although the thermal stability of the lubricant is substantially increased. The reaction of the present invention may be carried out in the presence of a solvent or neat.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: October 30, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Suzzy C. Ho, Margaret M. Wu
  • 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: 4882038
    Abstract: Crystalline molecular sieves having a three-dimensional microporous framework structures of MgO.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: (Mg.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 (Mg.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 magnesium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: November 21, 1989
    Assignee: UOP
    Inventors: Brent M. T. Lok, Lawrence D. Vail, 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: 4869805
    Abstract: Titanium-aluminum-silicon-oxide molecular sieves are disclosed having use as molecular sieves and as catalyst compositions in hydrocarbon conversion and other processes. The molecular sieves have a unit empirical formula on an anhydrous basis ofmR: (Ti.sub.x Al.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic+emplating agent; "m" represents the moles of "R" present per mole of (Ti.sub.x Al.sub.y Si.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of titanium, aluminum and silicon, respectively, present as tetrahedral oxides.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: September 26, 1989
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
  • Patent number: 4859312
    Abstract: Using a catalyst comprising a silicoaluminophosphate molecular sieve such as SAPO-11 and SAPO-41, and platinum or palladium, a hydrogenation component, heavy oils are simultaneously subjected to hydrocracking and isomerization reactions. The process selectively produces middle distillates in high yields having good low temperature fluid characteristics, especially reduced pour point and viscosity.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: August 22, 1989
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • Patent number: 4859311
    Abstract: An improved process for catalytically dewaxing a hydrocarbon oil feedstock by contact of the feedstock with a catalyst is disclosed where the catalyst comprises an intermediate pore size silicoaluminophosphate molecular sieve and at least one Group VIII metal.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: August 22, 1989
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • 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
  • Patent number: 4788378
    Abstract: A process is provided for dewaxing hydrocarbon feedstock by isomerizing the waxy components of the feedstock over catalyst comprising a siliceous zeolite having been prepared by the method comprising providing a boron-containing zeolite Beta, treating the zeolite with silicon tetrachloride at a temperature and for a time sufficient to replace boron with silicon, and recovering the siliceous zeolite having reduced boron content but substantially preserved initial aluminum content.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: November 29, 1988
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, David S. Shihabi, Paul B. Weisz
  • Patent number: 4781814
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structure of MO.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 are expressed by the formula:mR: (M.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 (M.sub.x Al.sub.y P.sub.z)O.sub.2 ; "M" represents at least two elements capable of forming framework tetrahedral oxides and selected from the group consisting of arsenic, beryllium, boron, chromium, gallium, germanium, lithium and vanadium; and "x", "y" and "z" represent the mole fractions of "M", aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed. The catalyst is useful in the cracking and hydrocracking of various hydrocarbonaceous feeds.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: November 1, 1988
    Assignee: Union Carbide Corporation
    Inventors: Edith M. Flanigen, Brent M. Lok, Robert L. Patton, Stephen T. Wilson
  • Patent number: RE33080
    Abstract: A process is described for non-cyclic paraffin isomerization under strong acid conditions in which an adamantane hydrocarbon is used to substantially increase the reaction rate of the isomerization.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: October 3, 1989
    Assignee: Exxon Research and Engineering Company
    Inventor: George M. Kramer