Abstract: The present disclosure relates to an apparatus for preparing an oligomer, and more particularly, to an apparatus for preparing an oligomer including: a reactor including a gaseous area having a first gaseous reactant inlet provided at a lower portion thereof, and a reaction area in which a reaction medium reacts with the gaseous reactant above the gaseous area; a second gaseous reactant inlet provided on an inner wall of the reactor in the gaseous area and a third gaseous reactant inlet provided on an inner wall of the reactor facing the second gaseous reactant inlet; and a first injection nozzle connected to the second gaseous reactant inlet and a second injection nozzle connected to the third gaseous reactant inlet.
Type:
Grant
Filed:
July 9, 2021
Date of Patent:
February 20, 2024
Assignee:
LG Chem, Ltd.
Inventors:
Moon Sub Hwang, Min Ho Sun, Jong Hun Song, Kyung Seog Youk, Jeong Seok Lee, Hong Min Lee
Abstract: Disclosed herein are processes and reaction systems for controlling a temperature of an oligomerization reaction zone using a heat exchange system.
Abstract: A method for processing an oligomerization product stream includes discharging the oligomerization product stream from an oligomerization reactor through a product outlet line, and heating the oligomerization product stream, heating a wall of the product outlet line, or both. The oligomerization product stream includes solvent, linear alpha olefins, a polymer byproduct, or a combination of at least one of the foregoing. The heating is to a temperature that is greater than the melting temperature of the polymer byproduct present in the oligomerization product stream.
Type:
Grant
Filed:
March 17, 2017
Date of Patent:
September 1, 2020
Assignees:
SABIC GLOBAL TECHNOLOGIES B.V., LINDE AG
Inventors:
Abdullah Alqahtani, Shahid Azam, Anina Wöhl, Wolfgang Müller, Andreas Meiswinkel, Heinz Bölt, Ralf Noack, Andreas Metzner, Andre Porebski, Tobias Meier
Abstract: The invention concerns a catalytic composition comprising: at least one nickel precursor with an oxidation number of (+II), at least one phosphine ligand with formula PR1R2R3 in which the groups R1, R2 and R3, which may be identical or different and which may or may not be bonded together, and at least one Lewis base, said composition having a molar ratio of the phosphine ligand to the nickel precursor of less than or equal to 5 and a molar ratio of the Lewis base and phosphine ligand together to the nickel precursor of greater than or equal to 5.
Abstract: A process comprising a) contacting (i) ethylene, (ii) a catalyst system comprising 1) a heteroatomic ligand iron salt complex, or a heteroatomic ligand and an iron salt, (iii) hydrogen, and (iv) optionally an organic reaction medium; and b) forming an oligomer product wherein 1) the oligomer product has a Schulz-Flory K value from 0.4 to 0.8 and 2) the oligomer product comprises (a) less than 1 wt. % of polymer, (b) less than 1 wt. % compounds having greater than 70 carbon atoms, (c) less than 1 wt. % compounds having a weight average molecular weight of greater than 1000 g/mol, or (d) any combination thereof wherein the weight percentage is based on the total weight of the oligomer product.
Type:
Grant
Filed:
December 29, 2016
Date of Patent:
March 31, 2020
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Steven M. Bischof, Brooke L. Small, Ryan W. Snell, Ron D. Knudsen, Eric J. Netemeyer, Orson L. Sydora, Jamie N. Sutherland, Bruce E. Kreischer, William J. Fisher
Abstract: Processes for oligomerizing olefins to produce diesel. The oligomerization zone temperature is controlled to counteract catalyst deactivation caused by coking, by contaminants such as cyclo C5 and/or cyclo C6 hydrocarbons, or both. The temperature is increased in increments to ensure that that the oligomerization zone is producing product at a target product yield with a target product quality, which may be measured by a product cetane number. The target product yield is at least 50 wt % and a target product cetane number may be at least 35.
Type:
Grant
Filed:
November 2, 2016
Date of Patent:
February 18, 2020
Assignee:
UOP LLC
Inventors:
Zhihao Fei, Steven L. Krupa, Hosoo Lim, Charles P. Luebke, Robert Mehlberg, Christopher P. Nicholas, Lisa M. Wolschlag
Abstract: The present invention relates to a polymerization device for the production of melts of thermoplastic polymers in which the heat of the discharged product can be recovered and used for preheating of the usable raw materials. In addition, the present invention relates to a corresponding method for the production of thermoplastic polymers.
Abstract: Disclosed herein is a method of preparing 1-octene at high activity and high selectivity while stably maintaining reaction activity by tetramerizing ethylene using a chromium-based catalyst system comprising a transition metal or a transition metal precursor, a cocatalyst, and a P—C—C—P backbone structure ligand represented by (R1)(R2)P—(R5)CHCH(R6)—P(R3)(R4).
Type:
Grant
Filed:
November 21, 2013
Date of Patent:
October 31, 2017
Assignees:
SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
Inventors:
Taek Kyu Han, Myung Ahn Ok, Sung Seok Chae, Sang Ook Kang, Jae Ho Jung
Abstract: An olefin oligomerization process comprises contacting an olefin feed with a catalyst composition. The catalyst composition includes a crystalline aluminosilicate having FAU, EMT or a combination of FAU and EMT framework type. The crystalline aluminosilicate has cobalt and at least one alkaline earth metal selected from calcium, barium, strontium and mixtures thereof within its intra-crystalline cages.
Type:
Grant
Filed:
September 18, 2012
Date of Patent:
February 28, 2017
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Georges M. K. Mathys, Geraldine Tosin, Johan A. Martens, Marcel J. G. Janssen, Joris Franken
Abstract: The present disclosure provides a catalyst composition for ethylene oligomerization including an imino ferrous complex shown in Formula (I) as the main catalyst, an aluminum-containing cocatalyst, water, and an organic solvent: According to the present disclosure, a higher oligomerization activity can be obtained with the catalyst composition than with a catalyst composition system in the prior art which contains no water. Moreover, when the catalyst composition according to the present disclosure is used, a high selectivity of ?-olefins is obtainable. Besides, the catalyst composition according to the present disclosure can enable rapid initiation, stable operation, and good repeatability of the oligomerization reaction. According to the present disclosure, a high oligomerization activity can be obtained even at a rather low ratio of Al/Fe, or at a low reaction temperature.
Type:
Grant
Filed:
April 16, 2014
Date of Patent:
February 23, 2016
Assignees:
CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
Abstract: The present invention relates to a method for ethylene oligomerization. According to the method of the present invention, highly active ethylene oligomerization reaction is possible by using a catalyst system including a novel chromium compound exhibiting high activity for ethylene oligomerization reaction, and therefore, polyethylene can be prepared using a small amount of comonomers or using only ethylene without comonomers.
Type:
Grant
Filed:
May 10, 2013
Date of Patent:
December 8, 2015
Assignee:
LG Chem, Ltd.
Inventors:
Heon Yong Kwon, Yong Ho Lee, Kyoung-Chan Lim, Ki Soo Lee, Min Seok Cho
Abstract: The present invention relates to a process to make alpha olefins comprising: dehydrating ethanol to recover an ethylene stream, introducing said ethylene stream into an oligomerization zone containing an oligomerization catalyst and into contact with said oligomerization catalyst, operating said oligomerization zone at conditions effective to produce an effluent consisting essentially of 1-butene, 1-hexene, optionally heavier alpha olefins and unconverted ethylene if any, introducing the above effluent into a fractionation zone to recover a stream consisting essentially of 1-butene, a stream consisting essentially of 1-hexene, optionally a stream consisting essentially of heavier alpha olefins and an optional ethylene stream. In an advantageous embodiment the 1-hexene or at least one heavier alpha olefins, if any, are isomerized to an internal olefin and subsequently transformed by metathesis with the aid of additional ethylene into different alpha-olefins with even or odd number of carbons.
Abstract: A process to separate a multi-component hydrocarbon stream which includes ethylene and other components with at least some of the components being present in a number of phases, is provided. The process includes in a first flash stage, flashing the multi-component hydrocarbon stream, from an elevated pressure and temperature to a pressure in the range of 10-18 bar(a), producing a first ethylene-containing vapor stream at a pressure in the range of 10-18 bar(a) and a multi-phase stream which includes some ethylene. In a second flash stage, the multi-phase stream is flashed to a pressure of less than 6 bar(a), producing a second vapor stream at a pressure of less than 6 bar(a) and a bottoms stream. The first ethylene-containing vapor stream is removed from the first flash stage, the second vapor stream is removed from the second flash stage and the bottoms stream is removed from the second flash stage.
Type:
Grant
Filed:
October 1, 2010
Date of Patent:
April 28, 2015
Assignee:
Sasol Technolgy (Proprietary) Limited
Inventors:
Johannes Jochemus Gildenhuys, Andrew Kenneth Stone, William Francis Revelt
Abstract: A process for producing a base for a fuel from a C2 ethanol feedstock, by a first stage for oligomerization of the feedstock into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbons, and contains a C10-C24 fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system that contains a metal precursor of titanium, zirconium, hafnium, nickel and/or iron, a second stage for oligomerization of a portion of the effluent that is obtained from stage a), into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbon atoms, and containing a C10-C24 fraction that has a mean linearity that is less than 50%, in the presence of a homogeneous catalytic system.
Type:
Grant
Filed:
May 6, 2011
Date of Patent:
February 17, 2015
Assignee:
IFP Energies Nouvelles
Inventors:
Sandrine Berard, Stephane Harry, Natacha Touchais, Lionel Magna, Helene Olivier-Bourbigou, Cedrik Popelin, David Proriol, Lucien Saussine
Abstract: The process converts FCC olefins to heavier compounds. The heavier compounds are more easily separated from the unconverted paraffins. The heavier compounds can be recycled to an FCC unit or delivered to a separate FCC unit. Suitable conversion zones are oligomerization and aromatic alkylation zones.
Type:
Grant
Filed:
March 27, 2014
Date of Patent:
January 20, 2015
Assignee:
UOP LLC
Inventors:
Joao Jorge da Silva Ferreira Alves, James E. Rekoske, Christopher P. Nicholas
Abstract: Disclosed is a process for producing a hydrocarbon fraction rich in components boiling in the range typical for diesel fuel comprising contacting a feedstock comprising one or more C2 to C10 alkenes with a modified zeolite catalyst having a one-dimensional micropore structure consisting of channels made from rings containing between 8 and 12 silicon/aluminum atoms at a temperature in the range 100 to 500° C. and pressure in the range 0.1 to 200 bar characterized in that the modified zeolite catalyst is one which has been prepared by treating a corresponding zeolite precursor with an alkaline solution. The alkaline solution used to treat the zeolite precursor can be for example aqueous sodium hydroxide solution. Relative to equivalent untreated zeolites the modified zeolite catalysts described show improved catalyst life and selectivity to hydrocarbons boiling in the range 250 to 350° C.
Type:
Grant
Filed:
June 22, 2010
Date of Patent:
December 2, 2014
Assignee:
BP Corporation North America Inc.
Inventors:
Avelino Corma, Cristina Martinez, Eric J. Doskocil, George Yaluris
Abstract: A process for the preparation of oligomeric poly alpha-olefins includes oligomerizing low molecular weight PAO oligomer in the presence of a Lewis acid catalyst such as promoted aluminum trichloride or boron trifluoride under oligomerization conditions. The low molecular weight PAO oligomers used as a feed or feed component of the present process are the light olefinic by-product fractions including the dimers and light fractions from the metallocene-catalyzed PAO oligomerization process which are characterized by a molecular weight of 150 to 600 and a terminal olefin (vinylidene) content of at least 25%.
Type:
Grant
Filed:
March 4, 2009
Date of Patent:
October 21, 2014
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Abhimanyu Onkar Patil, Margaret May-Som Wu, Norman Yang
Abstract: Embodiments of the invention relates to conversion of hydrocarbon material including but not limited to coal and biomass to a synthetic liquid transportation fuel. The invention includes the integration of a non-catalytic first reaction scheme, which converts carbonaceous materials into a solid product that includes char and ash and a gaseous product; a non-catalytic second reaction scheme, which converts a portion of the gaseous product from the first reaction scheme to light olefins and liquid byproducts; a traditional gas-cleanup operations; and the third reaction scheme to combine the olefins from the second reaction scheme to produce a targeted fuel like liquid transportation fuels.
Abstract: A process for recovering 1-hexene comprising: a) separating the mixture obtained from the ethylene trimerization reaction into a top fraction comprising ethylene and a bottom fraction, b) separating a portion of the bottom fraction obtained from step a) into a top fraction comprising 1-hexene and 1-butene and a bottom fraction, c) separating a portion of the fraction comprising 1-hexene and 1-butene obtained from step b) into a top fraction principally comprising 1-butene and into a bottom fraction principally comprising 1-hexene, and in said process: a portion of the bottom fraction obtained from step b) is returned to the reaction section and another portion of said bottom fraction obtained from step b) is used in a recirculation loop connecting the reaction section and the column of said step b), said recirculation loop being used to cool the reaction section and to reboil said column of step b).
Abstract: Methods for dimerizing alpha-olefins utilizing immobilized buffered catalysts wherein a buffered ionic liquid is mixed with an organometallic complex of the formula: where M is selected from the group of Ti, Zr, Hg, Ni, and V and R and R? are selected from the group consisting of hydrogen, alkyl, aryl, alkenyl, alkynyl, alkyloxy, substituted aryl, and halogens, are provided.
Type:
Grant
Filed:
July 1, 2010
Date of Patent:
August 26, 2014
Assignee:
Phillips 66 Company
Inventors:
Tanja Englmann, Christine Denner, Helmut G. Alt, Roland Schmidt, Matthias Dötterl
Abstract: A method for removal and recovery of an organic amine from a hydrocarbon stream containing the amine, including: i) mixing the hydrocarbon stream containing the amine with an aqueous inorganic acid in a volumetric ratio of hydrocarbon stream:aqueous inorganic acid of greater than 1:1-5:1, preferably 1.5:1-4:1, more preferably 3:1, ii) phase separating of hydrocarbon and aqueous phase; iii) removing the hydrocarbon phase and optionally further purifying thereof, iv) optionally recycling at least a part of the hydrocarbon phase obtained in step (iii) into mixing step (i), v) mixing the aqueous phase obtained in step (iii) with an aqueous alkaline solution, vi) phase separating of an aqueous phase and an organic phase formed, vii) removing the organic phase obtained in step (vi) and optionally further purifying thereof.
Type:
Grant
Filed:
November 1, 2013
Date of Patent:
August 19, 2014
Assignee:
Saudi Basic Industries Corporation
Inventors:
Fuad M. Mosa, Shahid Majeed Azam, Sultan Eid Al-Otaibi
Abstract: An object of the present invention is to provide a process of producing propylene by contacting ethylene with a catalyst, where propylene is produced with high selectivity. The present invention relates to a production process of propylene, comprising contacting ethylene with a catalyst, wherein the catalyst comprises a zeolite as an active ingredient and an acid content in the outer surface of the zeolite is 5 % or less based on an acid content of the entire zeolite.
Abstract: The process and apparatus converts ethylene in a dilute ethylene stream that may be derived from an FCC product to heavier hydrocarbons. The catalyst may be an amorphous silica-alumina base with a Group VIII and/or VIB metal. The catalyst is resistant to feed impurities such as hydrogen sulfide, carbon oxides, hydrogen and ammonia. At least 40 wt-% of the ethylene in the dilute ethylene stream can be converted to heavier hydrocarbons.
Type:
Grant
Filed:
March 31, 2009
Date of Patent:
June 10, 2014
Assignee:
UOP LLC
Inventors:
Christopher P. Nicholas, Alakananda Bhattacharyya, David E. Mackowiak
Abstract: The process and apparatus converts ethylene in a dilute ethylene stream that may be derived from an FCC product to heavier hydrocarbons. The catalyst may be an amorphous silica-alumina base with a Group VIII and/or VIB metal. The catalyst is resistant to feed impurities such as hydrogen sulfide, carbon oxides, hydrogen and ammonia. At least 40 wt-% of the ethylene in the dilute ethylene stream can be converted to heavier hydrocarbons.
Type:
Grant
Filed:
September 26, 2013
Date of Patent:
June 10, 2014
Assignee:
UOP LLC
Inventors:
Christopher P. Nicholas, Alakananda Bhattacharyya, David E. Mackowiak
Abstract: A process for oligomerization of an olefinic feedstock that contains olefinic hydrocarbon molecules that have 2 to 10 carbon atoms per molecule is described, whereby said process comprises bringing said feedstock into contact with a catalyst that comprises at least one amorphous material with hierarchized and organized porosity and consists of at least two elementary spherical particles, each of said particles comprising a mesostructured silicon-oxide-based matrix that has a mesopore diameter of between 1.5 and 30 nm and that exhibits amorphous and microporous walls with a thickness of between 1 and 50 nm, whereby said elementary spherical particles have a maximum diameter of 200 microns.
Type:
Grant
Filed:
April 28, 2009
Date of Patent:
June 3, 2014
Assignee:
IFP Energies Nouvelles
Inventors:
Amandine Cabias, Alexandra Chaumonnot, Laurent Simon
Abstract: Recycle of a stream comprising C8 oligomers to an oligomerization zone to be oligomerized with C4 olefins can produce diesel range oligomers. A diesel stream can be separated from a gasoline stream which can be recycled to the oligomerization zone.
Type:
Application
Filed:
November 7, 2013
Publication date:
May 15, 2014
Applicant:
UOP LLC
Inventors:
Christopher P. Nicholas, Steven L. Krupa, Kurt M. Vanden Bussche, Todd M. Kruse
Abstract: A process for separating an oligomerate stream into a vaporous oligomerate stream and a liquid oligomerate bottom stream is followed by recycling the liquid oligomerate bottom stream to an oligomerization zone to maintain the liquid phase therein and to provide unreacted olefins to the oligomerization zone.
Type:
Application
Filed:
November 7, 2013
Publication date:
May 15, 2014
Applicant:
UOP LLC
Inventors:
Christopher P. Nicholas, Steven L. Krupa, Kurt M. Vanden Bussche, Todd M. Kruse
Abstract: The invention relates to a process for preparing substituted or unsubstituted 1,7-diolefins by hydrodimerizing non-cyclic olefins having at least two conjugated double bonds in the presence of a reducing agent and of a catalyst, wherein the catalyst used is a metal-carbene complex.
Type:
Grant
Filed:
June 6, 2007
Date of Patent:
May 13, 2014
Assignee:
Evonik Degussa GmbH
Inventors:
Volker Brehme, Manfred Neumann, Frank Bauer, Elke Fiebig-Bauer, Franz Rudolf Bauer, Johanna Elisabeth Bauer, Dirk Roettger
Abstract: In a process for oligomerizing an olefinic hydrocarbon feedstock comprising at least 65 wt % olefins and/or sulfur-containing molecules, the feedstock is contacted under oligomerization conditions with (a) a first unidimensional 10-ring molecular sieve catalyst and (b) a second multidimensional crystalline molecular sieve catalyst. The first and second catalysts may be contained in separate reactors or as separate beds in a single reactor.
Type:
Grant
Filed:
September 2, 2010
Date of Patent:
May 6, 2014
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Stephen Harold Brown, John Stephen Godsmark, Georges Marie Karel Mathys
Abstract: The process converts FCC olefins to heavier compounds. The heavier compounds are more easily separated from the unconverted paraffins. The heavier compounds can be recycled to an FCC unit or delivered to a separate FCC unit. Suitable conversion zones are oligomerization and aromatic alkylation zones.
Type:
Grant
Filed:
May 23, 2013
Date of Patent:
April 22, 2014
Assignee:
UOP LLC
Inventors:
Joao Jorge da Silva Ferreira Alves, James E. Rekoske, Christopher P. Nicholas
Abstract: Treatment at elevated temperature and advantageously superatmospheric pressure with an inert gas, especially nitrogen, rejuvenates molecular sieve catalysts deactivated by use in liquid-phase or supercritical or dense-phase olefin oligomerization, or by use in aromatic alkylation.
Type:
Grant
Filed:
May 26, 2006
Date of Patent:
April 8, 2014
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Jihad M. Dakka, Hans K. T. Goris, Stephen H. Brown
Abstract: The application discloses novel processes for the oligomerization of unsaturated hydrocarbons, and more specifically the use of selected ionic liquids containing Indium (III) Chloride in the oligomerization of unsaturated hydrocarbons, which allows for selection of the oligomers formed.
Type:
Grant
Filed:
December 12, 2006
Date of Patent:
March 4, 2014
Assignee:
The Queen's University of Belfast
Inventors:
Martyn John Earle, Johanna Kärkkäinen, Natalia V. Plechkova, Alina Tomaszowska, Kenneth Richard Seddon
Abstract: The invention describes methods and systems for making particular organic compounds from unsaturated fatty acids derived from biological materials. Particular embodiments describe synthesizing civetone and olefins from a mixture of palmitoleic and oleic unsaturated fatty acid esters. The inventive methods use reaction steps such as metathesis, cyclization, hydrolysis, and/or decarboxylation.
Abstract: The process and apparatus converts ethylene in a dilute ethylene stream that may be derived from an FCC product to heavier hydrocarbons. The catalyst may be an amorphous silica-alumina base with a Group VIII and/or VIB metal. The catalyst is resistant to feed impurities such as hydrogen sulfide, carbon oxides, hydrogen and ammonia. At least 40 wt-% of the ethylene in the dilute ethylene stream can be converted to heavier hydrocarbons.
Type:
Grant
Filed:
March 31, 2009
Date of Patent:
November 5, 2013
Assignee:
UOP LLC
Inventors:
Christopher P. Nicholas, Alakananda Bhattacharyya, David E. Mackowiak
Abstract: A method of converting ethanol to a diesel fuel base stock comprises: a reaction stage (a) of contacting the ethanol with an acid catalyst, amorphous or structured, predominantly mesoporous, for example at a temperature of 300° C. to 500° C., at a pressure of 2 to 10 MPa and at a WHSV of 0.2 to 4 h?1, producing a gas phase, an organic liquid phase and an aqueous liquid phase, and a stage (b) of separating said gas phase, said organic liquid phase and said aqueous liquid phase at a pressure close to the reaction pressure. The method can involve recycling at least part of the gas phase separated in stage (b) to stage (a), and hydrogenating at least part of the organic liquid phase separated in stage (b).
Type:
Grant
Filed:
August 8, 2011
Date of Patent:
October 8, 2013
Assignee:
IFP Energies nouvelles
Inventors:
Vincent Coupard, Sylvia Maury, Frédéric Capuano, Mohamed Bengrine
Abstract: This disclosure provides for alpha olefin oligomers and polyalphaolefins (or PAOs) and methods of making the alpha olefin oligomers and PAOs. This disclosure encompasses metallocene-based alpha olefin oligomerization catalyst systems, including those that include at least one metallocene and an activator comprising a solid oxide chemically-treated with an electron withdrawing anion. The alpha olefin oligomers and PAOs prepared with these catalyst systems can have a high viscosity index combined with a low pour point, making them particularly useful in lubricant compositions and as viscosity modifiers.
Type:
Grant
Filed:
June 15, 2010
Date of Patent:
September 17, 2013
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Brooke L. Small, Kenneth D. Hope, Qing Yang, Albert P. Masino, Max P. McDaniel, Richard M. Buck, William B. Beaulieu, Eduardo J. Baralt, Eric J. Netemeyer, Bruce Kreischer
Abstract: Liquid poly-alpha-olefins having a KV100 of 2 to 6000 cSt, 20 weight percent dimer or less and a viscosity index of 60 or more are obtained by contacting in a reaction zone, in the presence of from 0 to 60 psi hydrogen, C3 to C20 alpha-olefin monomers with a non-coordinating anion activator, a single bridged meso-metallocene transition metal compound having less than about 35 wt % racemic isomer, and a co-activator. The molar ratio of activator to meso-metallocene is from 10:1 to 0.1:1, and the alpha-olefin monomers in the feed components are present in at least 20 wt % or more based upon the weight of the meso-metallocene, non-coordinating anion activator, co-activator, monomers, and solvent or diluent. The productivity of the process is at least 50,000 g of total product per gram of transition metal compound and no more than 5% monomer is converted from olefin to alkane.
Type:
Grant
Filed:
August 1, 2007
Date of Patent:
August 20, 2013
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Margaret M. Wu, Mark P. Hagemeister, Norman Yang
Abstract: A process for the dimerization of isoolefins is disclosed. The process may include: contacting an isoolefin with sulfurous acid in a reaction zone at conditions of temperature and pressure sufficient to dimerize at least a portion of the isoolefin.
Abstract: Methods for dimerizing alpha-olefins utilizing immobilized buffered catalysts wherein a buffered ionic liquid is mixed with an organometallic complex of the formula: where X is a halogen, n=2 or 3, M=Ti, V, Cr, Mn, Fe, Co and Ni and R1, R2, R3 and R4 are selected from the group consisting of hydrogen, alkyl, aryl, alkenyl, alkynyl, alkyloxy, substituted aryl, and X are provided. A method for dimerizing alpha-olefins utilizing the immobilized buffered catalysts and a co-catalyst is also provided.
Type:
Grant
Filed:
July 1, 2010
Date of Patent:
July 16, 2013
Assignee:
Phillips 66 Company
Inventors:
Matthias Dötterl, Roland Schmidt, Tanja Englmann, Christine Denner, Helmut G. Alt
Abstract: A hydrocarbon composition that comprises species of at least 3 different carbon numbers, at least about 95 wt % non-normal hydrocarbons, no greater than 1000 wppm aromatics, no greater than 10 wt % naphthenes, and also has a certain boiling point range; and a process for making the hydrocarbon composition.
Type:
Grant
Filed:
January 27, 2006
Date of Patent:
July 9, 2013
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Keith H. Kuechler, Stephen Harold Brown, An Amandine Verberckmoes, Steven E. Silverberg, Marc P. Puttemans, Mark R. Welford, John S. Godsmark
Abstract: Catalyst composition for the oligomerization of ethylene, comprising (i) an at least partially hydrolyzed transition metal compound, obtainable by controlled addition of water to a transition metal compound having the general formula MXm(OR?)4-m or MXm(OOCR?)4-m, wherein R? is an alkyl, alkenyl, aryl, aralkyl or cycloalkyl group, X is halogen, preferably Cl or Br, and m is from 0 to 4; preferably 0-3; and (ii) an organoaluminum compound as a cocatalyst, wherein the molar ratio of water and transition metal compound is within a range of between about (0.01-3):1; a process for oligomerization of ethylene and a method for preparing the catalyst composition.
Type:
Grant
Filed:
November 13, 2008
Date of Patent:
July 9, 2013
Assignee:
Saudi Basic Industries Corporation
Inventors:
Vugar Aliyev, Fuad Mosa, Mohammed Al-Hazmi
Abstract: We provide a process for producing hydrocarbon products. The process includes operating a process unit comprising a liquid catalyst in a first mode, adjusting a molar ratio of olefin to HCl, and operating the process unit in a second mode. The first mode and the second mode are different, one being a distillate mode and the other being a lubricant mode. Increasing the molar ratio of olefin to HCl provides a higher amount of a lubricant.
Abstract: The process converts FCC olefins to heavier compounds. The heavier compounds are more easily separated from the unconverted paraffins. The heavier compounds can be recycled to an FCC unit or delivered to a separate FCC unit. Suitable conversion zones are oligomerization and aromatic alkylation zones.
Type:
Grant
Filed:
March 31, 2010
Date of Patent:
June 25, 2013
Assignee:
UOP LLC
Inventors:
Joao Jorge da Silva Ferreira Alves, James E. Rekoske, Christopher P. Nicholas
Abstract: According to the present invention there is provided a process for producing an oligomeric product by the oligomerisation of at least one olefinic compound including: A) providing an activated oligomerisation catalyst comprising the combination of: i) a source of a transition metal; ii) a ligating compound of the formula (R1)mX1(Y)X2(R2)n iii) a metal containing activator; and (iv) at least one olefinic compound; B) diluting the activated oligomerisation catalyst of A with an introduced liquid medium; and C) contacting the at least one olefinic compound to be oligomerised with the diluted activated catalyst of B to produce an oligomeric product.
Type:
Grant
Filed:
July 10, 2006
Date of Patent:
June 11, 2013
Assignee:
Sasol Technology (PTY) Limited
Inventors:
Matthew James Overett, Kevin Blann, Esna Killian, David Hedley Morgan, Hulisani Maumela, Annette Bollmann, John Thomas Dixon
Abstract: A process for preparing poly alpha olefins from a Fisher-Tropsch product. The process comprising the steps of contacting a C5-C18 fraction of an alpha-olefinic hydrocarbon mixture produced from thermal cracking a C16-C40 Fisher-Tropsch product with an oligomerization catalyst under conditions to produce an oligomerized product; and fractionating the oligomerized product to obtain a fractionated product having an average carbon number greater than 30. A process for preparing lubricant base stocks from a Fisher-Tropsch product is also provided.
Type:
Grant
Filed:
October 5, 2007
Date of Patent:
May 14, 2013
Assignee:
Exxonmobil Research and Engineering Company
Inventors:
John S. Buchanan, Margaret M. Wu, Lorenzo DeCaul
Abstract: The invention involves a process for converting an oxygenate-containing feed into an olefin-containing product comprising: (a) providing a co-catalyst oxide of a metal from Groups 2-4 of the Periodic Table of Elements, Lanthanides, Actinides, and combinations thereof, (b) contacting the metal oxide with nitromethane under conditions sufficient for the nitromethane to adsorb onto the metal oxide; (c) analyzing the nitromethane-adsorbed metal oxide using NMR to determine a basic site density of the metal oxide; (d) providing a catalyst system comprising a primary catalyst comprising aluminosilicates, aluminophosphates, silicoaluminophosphates, and metal-containing derivatives and combinations thereof, and the co-catalyst metal oxide whose basic site density is ?0.
Type:
Grant
Filed:
December 17, 2008
Date of Patent:
April 9, 2013
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Stephen N. Vaughn, Sebastien P. B. Kremer, Teng Xu
Abstract: This invention relates to a method to selectively oligomerize olefins comprising contacting olefins with: 1) at least one diaryl-substituted diphosphine ligand; 2) a chromium metal precursor; and 3) optionally, one or more activators. In a particular embodiment, the method for selectively oligomerizing olefins includes trimerizing ethylene to selectively form 1-hexene.
Type:
Grant
Filed:
August 24, 2007
Date of Patent:
March 26, 2013
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Laughlin G. McCullough, Francis Charles Rix, John F. Walzer, Lily Joy Ackerman, Keith Anthony Hall, Gary Michael Diamond, Victor Oswaldo Nava-Salgado
Abstract: Processes for making CX to CY olefins are provided. The processes include reacting a feedstock comprising C5 and C6 olefins under dimerization or oligomerization conditions to provide a dimerization or oligomerization product. The product is separated into a stream comprising unreacted C5 and C6 paraffins, a stream comprising C10 to CX-1 olefins, and a stream comprising CX to CY olefins, wherein X is at least 14 and Y is greater than X and less than or equal to 36.
Type:
Application
Filed:
July 19, 2011
Publication date:
January 24, 2013
Applicant:
UOP LLC
Inventors:
Debarshi Majumder, Stephen Wayne Sohn, Bryan K. Glover, Andrea G. Bozzano
Abstract: Provided is a process for oligomerizing n-olefins. The process has the step of reacting (oligomerizing) an amount of one or more n-olefins in the presence of a catalytically effective amount of a two or more metal oxides at a temperature effective to effect oligomerization. The two or more metal oxides are represented by the formula MOn/M?On?. M and M?, are, independently, selected from the group consisting of Al, Ce, Fe, P, W, Zr, and combinations thereof. M and M? are different metals or combinations of metals. “n” and “n?” are positive numbers and vary stoichiometrically depending on the valency of M and M?, respectively. Provided is also a process for alkylation of an alkylatable aromatic compound. The process has the step of contacting an amount of one or more n-olefins with an amount of aromatic compound in the presence of a catalytically effective amount of the two or more metal oxides at a temperature effective to effect alkylation of the aromatic compound.
Type:
Grant
Filed:
December 21, 2007
Date of Patent:
November 13, 2012
Assignee:
ExxonMobil Research and Engineering Company
Inventors:
Jihad Mohammed Dakka, Jeffrey T. Elks, James C. Vartuli
Abstract: Disclosed herein is a catalyst system for selective oligomerization of ethylene, which comprises a P—C—C—P frame-work ligand, which is (R1)(R2)P—(R5)CHCH(R6)—P(R3)(R4), and a chromium-based metal compound. Also disclosed is a method of greatly enhancing the activity and selectivity of oligomerization, such as trimerization or tetramerization, using a ligand having a specific steric arrangement structure.
Type:
Grant
Filed:
December 24, 2007
Date of Patent:
November 13, 2012
Assignees:
SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
Inventors:
Taek Kyu Han, Sung Seok Chae, Sang Ook Kang, Kyung Ryang Wee, Sung Kwan Kim