From Nonhydrocarbon Feed Patents (Class 585/638)
  • Patent number: 5302775
    Abstract: Process for the catalytic conversion of a charge incorporating at least one oxygen compound such as methanol, into olefinic hydrocarbons having 2 to 4 carbon atoms. Conversion takes place in a reactor (100), into which the charge is introduced by the pipe (20), the catalytic solid by the pipe (30) and the solid entrainment gas by the pipe (40), the reactor being connected by a pipe (1) to a co-current cyclone separator (S) making it possible to separate a solid phase from a gaseous phase containing the conversion products, which is recovered by the pipe (4). The solid phase is fed by the pipe (9) to a regenerator (R), in which the catalytic particles are at least partly regenerated before being returned by the pipe (80), connected to the pipe (30), to the reactor (100).
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: April 12, 1994
    Assignee: Institut Francais du Petrole
    Inventors: Francois Hugues, Daniel Vuillemot, Jean Pierre Burzynski, Pierre Galtier, Thierry Gauthier
  • Patent number: 5278345
    Abstract: A process for converting an oxygenate feed to light olefins using a microporous zeolite catalysts such as ECR-1, mazmorites, and/or ECR-18 is provided. In a preferred embodiment, the process is conducted at approximately 440.degree. C. (824.degree. F.) to about 460.degree. C. (860.degree. F.) using a methanol:water (approximately 1:4 molar ratio) feed and results in superior production of light olefins.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: January 11, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Marcel J. G. Janssen, David E. W. Vaughan
  • Patent number: 5276240
    Abstract: A novel catalytic process involving complete hydrodehalogenation of halogenated aliphatic hydrocarbons in the presence of a hydrogen donor and a modified zeolite catalyst has been developed. The process is operated in a continuous flow mode and reaction products consist exclusively of hydrogen halide and hydrocarbons. The relative ratio of paraffins to olefins to aromatics obtained in the product distribution is a strong function of the ratio of hydrogen to reactant and the space velocity and temperature employed. The catalyst employed is a nickel metal modified shape selective zeolite that takes advantage of the hydrogenolysis ability of nickel and the acidic-shape selective properties of the zeolite.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Board of Regents, The University of Texas System
    Inventors: Richard B. Timmons, Wen-Long Jang, Yigong He, David J. Houpt, Jr.
  • Patent number: 5264646
    Abstract: A process for preparing a vinylically-unsaturated product compound comprises reacting a halogenated organic compound with a hydrolytically-stable, vinylically-unsaturated precursor compound in the presence of (a) a homogeneous zerovalent palladium catalyst complex, (b) an organic hydrogen halide acceptor and (c) a diluent, wherein the diluent is water or an aqueous solution containing up to 95% by volume of an organic solvent. The halogenated organic compound is selected from aryl halides, benzyl halides or vinylic halides. The hydrolytically-stable, vinylically-unsaturated precursor compound is selected from organosilicon compounds, hydrocarbon compounds or compounds containing at least one of an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a combination thereof.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: November 23, 1993
    Assignee: The Dow Chemical Company
    Inventors: Robert A. DeVries, Gregory F. Schmidt, Hughie R.* Frick, Bonnie Frick
  • Patent number: 5254785
    Abstract: The present invention provides a process for cracking or decomposing a feedstream containing a major proportion of at least one dialkyl ether to produce the corresponding olefins comprising contacting the feedstream with a faujasite aluminosilicate catalyst which is characterized in that at least about 50 wt. % of the alkali metal content originally present in said faujasite has been exchanged by at least one alkaline earth metal. The decomposition is preferably conducted in the vapor phase at preferred temperatures in the range of from about 125.degree. F. to about 600.degree. F. The process offers the advantages of longer catalyst life coupled with high yield and selectivity rates towards olefin production.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: October 19, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David D. Rosenfeld, Derrick D. Pete, Larry L. Iaccino, Barrington M. Hammond
  • Patent number: 5233113
    Abstract: This invention is a process for converting lower alkanes into their corresponding esters and optionally into various intermediates (such as methanol) and other liquid hydrocarbons. The alkanes are oxidatively converted to oxy-esters at high selectivity using catalytic amounts of a Group VIII noble metal. If so desired, the alkyl oxy-esters may be converted to alcohols or other intermediates such as alkyl halides. The oxy-esters, alcohols, and other intermediates may optionally be converted to liquid hydrocarbons such as gasoline.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: August 3, 1993
    Assignee: Catalytica, Inc.
    Inventors: Roy A. Periana, Eric R. Evitt, Henry Taube
  • Patent number: 5196633
    Abstract: A process is provided for effecting catalytic conversion of an organic compound-containing feedstock to conversion product which comprises contacting said feedstock under catalytic conversion conditions with a catalyst comprising an active form of an inorganic, porous crystalline phase exhibiting, after calcination, a hexagonal arrangement of uniformly-sized pores having diameters of at least about 13, e.g., at least about 15, Angstrom Units and exhibiting a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: March 23, 1993
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
  • Patent number: 5191142
    Abstract: A process for efficiently converting methanol to C.sub.3 -C.sub.12 olefins or paraffinic gasoline components is disclosed. A gaseous reaction mixture containing methanol and olefins is contacted with a solid acid catalyst in a reaction zone under conditions whereby a positive methanol concentration is maintained throughout the reaction zone. The process provides extended catalyst life, reduced deactivation rates, improved yields, and enhanced selectively for valuable products.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: March 2, 1993
    Assignee: Amoco Corporation
    Inventors: Christopher L. Marshall, Jeffery T. Miller
  • Patent number: 5171920
    Abstract: A process for obtaining a tertiary olefin, e.g. isobutylene in a very pure state by decomposing the corresponding ether, e.g. methyl tert. butyl ether, in the presence of a catalyst constituted by silica, modified by the addition of at least one element or compound of an element preferably chosen from the group constituted by rubidium, cesium, magnesium, calcium, strontium, barium, gallium, lanthanum, cerium, praseodymium, neodymium and uranium and optionally by the addition of at least one element or compound of an element chosen from the group constituted by aluminium, titanium and zirconium.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: December 15, 1992
    Assignee: Institut Francais du Petrole
    Inventors: Patrick Chaumette, Germain Martino, Catherine Verdon, Serge Leporq
  • Patent number: 5124501
    Abstract: A process for the preparation of undeca-1,3,5-triene, a prized perfuming ingredient, in two, respectively three, steps starting from sorbic acid, which makes it possible to obtain said compound in its undeca-1,3E,5Z preferred isomeric form, is disclosed.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: June 23, 1992
    Assignee: Firmenich SA
    Inventors: Charles Fehr, Jose Galindo
  • Patent number: 5124499
    Abstract: A sulpholene compound and more particularly 4,4-dimethyl-2,2-dioxo-1,2,4,5,6,7-hexahydro-benzo[c]thiophene. These compounds are prepared by bringing myrcene sulphone into contact with a strong acid. The compounds of the present invention can be used as synthesis intermediates in the preparation of vitamin A.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: June 23, 1992
    Assignee: Rhone-Poulene Nutrition Animale
    Inventor: Jean-Pierre Duchesne
  • Patent number: 5087790
    Abstract: A method for conversion of a starting compound containing a carbon-oxygen double bond to a corresponding product containing a carbon-carbon bond, in particular for conversion of a carbonyl compound to the corresponding olefinic derivative, in which the carbonyl substrate is reacted with an appropriate titanocene derivative. The method is particularly suitable for the olefination of aldehydes, ketones, esters, lactones, amides and lactams. The olefination procedure using these titanocene derivatives proceeds rapidly and in high yield, and is of a more general applicability than heretofore known methods.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: February 11, 1992
    Assignee: University of Southern California
    Inventors: Nicos A. Petasis, Eugene I. Bzowej
  • Patent number: 5077447
    Abstract: Carboxylic acids are converted in high yields to olefins or high purity .alpha.-olefins by contacting a mixture of carboxylic acid and a carboxylic acid anhydride in the presence of a Group VIII metal or copper-containing catalyst at a temperature of from about 100.degree. C. to about 300.degree. C.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: December 31, 1991
    Assignee: Henkel Research Corporation
    Inventors: Joseph A. Miller, Jeffrey A. Nelson, Mike Byrne
  • Patent number: 5053581
    Abstract: This invention relates to a process of recycling condensate from a hydrocarbon or alcohol synthesis, wherein the condensate comprises water and contaminants such as lower molecular weight hydrocarbons, alcohols, and other oxygenates. A hot gaseous mixture comprising CH.sub.4 and steam contacts the condensate so as to strip the contaminants from the condensate. The stripped contaminants, CH.sub.4, and steam are separately recovered as a gaseous stream from the remaining purified water. The recovered CH.sub.4 -containing gaseous stream may be used in synthesis gas (CO/H.sub.2) generation processes with the generated synthesis gas then being used in a hydrocarbon synthesis process to produce heavy hydrocarbons.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: October 1, 1991
    Assignee: Exxon Research & Engineering Company
    Inventors: Henry W. Hildinger, Edwin D. Carlson
  • Patent number: 5030783
    Abstract: A process is disclosed for the conversion of an aliphatic feedstream in which an oxygen-deficient flue gas is used to directly transfer heat to the primary conversion reaction. Hydrogen, carbon monoxide and carbon dioxide from the primary conversion reactor effluent are converted to methanol or Fischer-Tropsch liquid and may be recycled to the primary conversion reactor. Preferred primary conversion reactions include dehydrogenation and aromatization of aliphatics.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: July 9, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Mohsen N. Harandi, Hartley Owen
  • Patent number: 4997546
    Abstract: Hydroperoxides can be removed from a lubricating oil by contacting the oil with a heterogenous hydroperoxide decomposer. This extends the useful life of the oil and the equipment being lubricated. In a preferred embodiment, the hydroperoxide decomposer is incorporated on a substrate immobilized within the lubrication system of an internal combustion engine.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: March 5, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Harold Shaub, Darrell W. Brownawell, Arthur DiBenedetto
  • Patent number: 4973792
    Abstract: A process for catalytically converting a feedstock into a product which comprises:(a) contacting the feedstock with a fluidized mass of solid particles comprising crystalline microporous three dimensional solid catalyst in a reaction zone at conditions effective to convert the feedstock into the product;(b) contacting the particles in the reaction zone with a first purge medium to reduce the amount of at least one of the feedstock and the product in contact with the particles; and(c) contacting the particles in the reaction zone with regeneration medium at conditions effective to improve at least one catalytic property of the catalyst, provided that steps (a), (b) and (c) are repeated periodically.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: November 27, 1990
    Assignee: UOP
    Inventors: Jeffrey M. O. Lewis, William H. Henstock
  • Patent number: 4935567
    Abstract: A cellulose-containing biomass such as wood is liquefied by heat-treatment under a pressurized condition in the presence of water and a neutral, oxygen-containing organic liquid such as an ester, ether, ketone or alcohol. An alkaline catalyst such as potassium carbonate may be added to accelerate the liquefaction when the organic liquid is one other than acetone. Also provided is a process for the liquefaction of a cellulose-containing biomass including heat-treating the biomass in an aqueous medium in the pressurized atmosphere of an inert gas or steam at a temperature of 250.degree.-385.degree. C. in the presence of an alkaline catalyst in an amount of 0.01-0.1 part by weight per one part by weight of the biomass on the dry basis.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: June 19, 1990
    Assignee: Agency of Industrial Science and Technology
    Inventors: Shinya Yokoyama, Tomoko Ogi, Katsuya Koguchi
  • Patent number: 4899004
    Abstract: Trimethylbenzene is selectively prepared by contacting a C.sub.1 to C.sub.4 alkane with magnesium under reaction conditions to produce a reaction product. The reaction product thus produced, is contacted with water or a lower alcohol to promote a protonolysis reaction. The reaction mixture or a fraction thereof from the protonolysis reaction is contacted with a metal containing Y zeolite catalyst under reaction conditions to produce trimethylbenzene.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: February 6, 1990
    Assignee: Conoco Inc.
    Inventors: Joe D. Allison, Richard M. Tillman
  • Patent number: 4895996
    Abstract: Alkenes are prepared by the hydroboration of enamines followed by an elimination reaction to form the alkene. This process has wide applicability and is useful for the stereospecific synthesis of [Z] isomers. It is preferred to use 9-borabicyclo[3.3.1 nonane as the hydroborating agent and to use methanol to catalyze the elimination reaction.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: January 23, 1990
    Assignees: Purdue Research Foundation, The Dow Chemical Company
    Inventors: Christian T. Goralski, Bakthan Singaram, Herbert C. Brown
  • Patent number: 4886924
    Abstract: A process for the stereospecific synthesis of [E] alkenes from enamines comprising the steps of hydroborating the enamine; esterifying the organoborane so formed and oxidizing the boronic ester in the presence of hydrogen peroxide and in the absence of added base under conditions sufficient to form the [E] alkene in high yield.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: December 12, 1989
    Assignee: The Dow Chemical Company
    Inventors: Christian T. Goralski, Bakthan Singaram, Herbert C. Brown
  • Patent number: 4873390
    Abstract: A process for catalytically converting a feedstock into a product which comprises:(a) contacting the feedstock with a solid composition comprising an effective amount to promote the chemical conversion of small pore crystalline microporous three dimensional solid catalyst at conditions effective to convert the feedstock into the product and to form carbonaceous deposit material on the solid composition;(b) contacting the carbonaceous deposit material-containing solid composition with regeneration medium at conditions effective to remove only a portion of the carbonaceous deposit material from the solid composition; and(c) repeating step (a) using as at least a portion of the solid composition previously subjected to step (b).
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: October 10, 1989
    Assignee: UOP
    Inventors: Jeffrey M. O. Lewis, Joe B. Price
  • Patent number: 4861938
    Abstract: A process for converting a feedstock containing 1 to about 6 carbon atoms per molecule which includes (a) contacting the feedstock with a solid composition comprising a crystalline microporous three dimensional solid catalyst having pores and being capable of promoting the conversion, and matrix material at conditions effective to convert the feedstock, to produce at least one desired product, and to at least partially deactivate the solid composition; (b) contacting the deactivated solid composition with regeneration medium at conditions to at least partially regenerate the solid composition; and (c) repeating step (a), the improvement which comprises (d) contacting the regenerated solid composition prior to step (c) to condition the regenerated solid composition to have increased effectiveness in step (c).
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: August 29, 1989
    Assignee: UOP
    Inventors: Jeffrey M. O. Lewis, William H. Henstock
  • Patent number: 4849574
    Abstract: Ketones or aldehydes are methylenated to form the corresponding olefin by reaction with a bis(alkylchloroalumino)methane, e.g., in the form of its dietherate.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: July 18, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 4842720
    Abstract: A novel siliceous crystalline composition of matter further comprising one or more metals is prepared by admixing a basic silica salt and a dissolved metal salt in the presence of a quaternary ammonium ion and subsequently heating under pressurized conditions. This novel composition of matter is useful as a catalyst for oxidation, alkylation, disproportionation, synthesis gas conversion, hydrocracking, and hydrodewaxing.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: June 27, 1989
    Assignee: Union Oil Company of California
    Inventor: Eric L. Moorehead
  • Patent number: 4822938
    Abstract: There is provided a process for converting methane to higher molecular weight hydrocarbons. In a first step, methane is contacted with elemental sulfur under conditions sufficient to produce carbon disulfide. Carbon disulfide from this step is then contacted with methane and hydrogen under conditions sufficient to convert methane and to produce CH.sub.3 SH. This CH.sub.3 SH is then contacted with a sufficient catalyst, such as a zeolite, especially ZSM-5, under conditions sufficient to produce hydrocarbons having two or more carbon atoms.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: April 18, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Costandi A. Audeh, Weldon K. Bell, Scott Han, Robert E. Palermo
  • Patent number: 4788367
    Abstract: Ketones are methylenated to form the corresponding olefin by reaction with a bis(alkylchloroalumino)methane, e.g., in the form of its dietherate.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: November 29, 1988
    Assignee: Texas Alkyls Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 4788368
    Abstract: Ketones are alkylenated to form the corresponding olefin by reaction with a bis(substituted alumino)substituted methane, e.g., in the form of its dietherate.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: November 29, 1988
    Assignee: Texas Alkyls Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass, John J. Eisch, Marek P. Boleslawski
  • Patent number: 4754092
    Abstract: A process for reducing methane formation and increasing liquid (C.sub.5.sup.+) yields in Fischer-Tropsch hydrocarbon synthesis processes of CO and H.sub.2 comprising adding one or more olefins to the reactor bed at a point below 10% of the distance from the top to the bottom of the reactor bed and above a point 10% above the bottom of the reactor bed to the top of the reactor bed in an amount sufficient to reduce said methane formation.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: June 28, 1988
    Assignee: Exxon Research and Engineering Company
    Inventors: Enrique Iglesia, Rostam Madon
  • Patent number: 4752651
    Abstract: The process for the production of light olefins from a feedstock comprising at least an aliphatic hetero compound comprising contacting said feedstock in the presence of an aromatic diluent with a non-zeolitic molecular sieve at effective process conditions to produce light olefins.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: June 21, 1988
    Assignee: Union Carbide Corporation
    Inventor: Steven W. Kaiser
  • Patent number: 4728672
    Abstract: A process for producing hydrocarbons which comprises bringing a gas mixture comprising hydrogen and carbon monoxide into contact with a catalyst comprising manganese oxide, alkali metal, sulfur, and ruthenium to produce hydrocarbons. The hydrocarbons formed are rich in olefins. When a catalyst prepared by combining the above described catalyst with crystalline zeolite is used, the hydrocarbons formed becomes rich in liquid hydrocarbons, particularly, a gasoline fraction.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: March 1, 1988
    Assignee: Research Association for Petroleum Alternatives Development
    Inventors: Tomohiro Yoshinari, Fujio Suganuma, Chikara Sera
  • Patent number: 4713458
    Abstract: Ketones and aldehydes are converted to ethenylidene-containing compounds by reaction thereof with dimethyl carbonate and a phosphine compound.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: December 15, 1987
    Assignee: The Dow Chemical Company
    Inventors: Kevin A. Frazier, James M. Renga
  • Patent number: 4677242
    Abstract: The process for the production of light olefins from a feedstock comprising at least an aliphatic hetero compound comprising contacting said feedstock in the presence of an aromatic diluent with a silicoaluminophosphate molecular sieve at effective process conditions to produce light olefins.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: June 30, 1987
    Assignee: Union Carbide Corporation
    Inventor: Steven W. Kaiser
  • Patent number: 4677243
    Abstract: The process for the production of light olefins from a feedstock comprising at least an aliphatic hetero compound comprising contacting said feedstock with a silicoaluminophosphate molecular sieve of U.S. Pat. No. 4,440,871 at effective process conditions to produce light olefins.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: June 30, 1987
    Assignee: Union Carbide Corporation
    Inventor: Steven W. Kaiser
  • Patent number: 4618723
    Abstract: Carbon monoxide and carbon dioxide are upgraded to valuable organic compounds, such as methanol, methane, propylene, and the like, by a thermochemical process comprising:(a) contacting the carbon monoxide and/or carbon dioxide with hydrogen sulfide to form carbonyl sulfide,(b) contacting the carbonyl sulfide with oxygen to form carbon monoxide and sulfur dioxide, and(c) hydrogenating at least one of carbon monoxide and carbonyl sulfide to the desired organic compound.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: October 21, 1986
    Assignee: The Standard Oil Company
    Inventors: Daniel R. Herrington, Philip L. Kuch
  • Patent number: 4601817
    Abstract: Process for removing chlorinated hydrocarbons such as ethylene dibromide and PCBs from a material containing the same such as a fuel, hazardous waste material, fuel containing a hazardous waste material, which comprises forming a ternary alloy of sodium, copper and lead by dispersing sodium metal in oil and reacting the same with a catalytic amount of copper and at least the same amount of lead to provide a slurry of said alloy; contacting the material containing the halogenated hydrocarbon with said slurry using an amount of alloy whereby the sodium is present in excess with respect to halogen present; carrying out said contacting at a temperature of about 250.degree.-300.degree. F. under intense mixing and separately recovering the sodium halide, copper-lead and unreacted sodium-copper-lead alloy from the substantially halogen free material.The invention also contemplates as novel the ternary alloy of Na, Cu and Pb and the oil slurry containing the same.
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: July 22, 1986
    Inventor: Alfred R. Globus
  • Patent number: 4581130
    Abstract: This invention relates to a process for management of hazardous materials and namely chlorinated hydrocarbons including polychlorinated biphenyls (PCBs) as found in fuels, textile dyes, printing inks, paints, carbonless copy paper, fireproofing agents, electrical capacitors, electrical insulation, transformer fluids, hydraulic systems, heat exchangers, hazardous wastes and the like. More particularly, this invention relates to a process for assuring protection against and specifically elimination of the potential health effects of the chlorinated hydrocarbons including polychlorinated biphenyls in the wide range of materials noted above, but particularly in so-called toxic wastes or hazardous waste materials and even more particularly in the hazardous wastes used as fuels or the fuels per se.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: April 8, 1986
    Inventor: Alfred R. Globus
  • Patent number: 4579986
    Abstract: Syngas is subjected to Fischer-Tropsch synthesis over a Co/Zr/SiO.sub.2 catalyst and the C.sub.20.sup.+ fraction of the synthesized product is converted into linear C.sub.10 -C.sub.20 olefins by mild thermal cracking.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: April 1, 1986
    Assignee: Shell Oil Company
    Inventor: Swan T. Sie
  • Patent number: 4579985
    Abstract: C.sub.5.sup.+ hydrocarbons are prepared from C.sub.4.sup.- hydrocarbons by a two-stage process comprising steam reforming followed by Fischer-Tropsch synthesis over a special cobalt-containing catalyst; a gaseous fraction comprising unconverted H.sub.2 and CO as well as C.sub.4.sup.- hydrocarbons and CO.sub.2 formed as by-products is separated from the synthesized product and recycled to the steam reformer.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: April 1, 1986
    Assignee: Shell Oil Company
    Inventors: Johannes K. Minderhoud, Swan T. Sie, Ernst J. R. Sudholter
  • Patent number: 4563197
    Abstract: A process for the production of economically significant amounts of ethyl and other hydrocarbon compounds, such as benzene, from coal is disclosed wherein coal is reacted with methane at a temperature in the approximate range of 500.degree. C. to 1100.degree. C. at a partial pressure less than about 200 psig for a period of less than 10 seconds. Ethylene and other hydrocarbon compounds may be separated from the product stream so produced, and the methane recycled for further production of ethylene. In another embodiment, other compounds produced, such as by-product tars, may be burned to heat the recycled methane.
    Type: Grant
    Filed: February 15, 1984
    Date of Patent: January 7, 1986
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Meyer Steinberg, Peter Fallon
  • Patent number: 4554397
    Abstract: A linear olefin is manufactured by contacting a fatty acid or ester with a catalyst comprising nickel and at least one metal from the group consisting of tin, germanium and lead at 200.degree.-400.degree. C.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: November 19, 1985
    Assignee: Institut Francais du Petrole
    Inventors: Robert Stern, Gerard Hillion
  • Patent number: 4543433
    Abstract: The new tetraene of formula: ##STR1## is useful particularly as an intermediate in the synthesis of, for example, hexahydropseudoionone, pseudoionone and vitamin A.It may be made by dehydrochlorinating 3-chloro-2-methyl-6-methylene-1,3,7-octadiene in the presence of a palladium catalyst and an inorganic base.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: September 24, 1985
    Assignee: Rhone-Poulenc Sante
    Inventors: Gerard Mignani, Didier Morel
  • Patent number: 4524234
    Abstract: The process for the production of hydrocarbons from a feedstock comprising compounds of the formula R--X wherein X is a moiety containing at least one of halogen, sulfur, oxygen, and nitrogen, wherein the feedstock is contacted with an aluminophosphate molecular sieve of U.S. Pat. No. 4,310,440 at effective process conditions to produce light olefin products.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: June 18, 1985
    Assignee: Union Carbide Corporation
    Inventor: Steven W. Kaiser
  • Patent number: 4517400
    Abstract: A process is provided for decarbonylating aldehydes to olefins having one less carbon atom than the aldehydes, carbon oxide and hydrogen, by passing the aldehydes over a catalyst comprising a metal selected from the group consisting of palladium, platinum, rhodium, copper, silver, gold and zinc supported on or exchanged onto a support.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: May 14, 1985
    Inventors: Frederick A. Pesa, Marcus W. Blaskie, Joseph R. Fox
  • Patent number: 4501910
    Abstract: The invention concerns a process transforming an aldehyde into a corresponding alkene, of the type wherein the aldehyde is placed in the presence of a phosphoric reagent and a base in an organic solvent.The process consists in using an alcohol as the solvent and as a base a mineral base which in an aqueous medium evinces a basic strength equal to or less than that of the hydroxide ion, or a strongly basic organic base of the amine family, and in limiting the hydration rate of the reaction medium to a value at most of 10 moles of water per mole of aldehyde.
    Type: Grant
    Filed: October 12, 1982
    Date of Patent: February 26, 1985
    Assignee: Agrifurane, S.A.
    Inventors: Michel Delmas, Antoine Gaset, Yves le Bigot
  • Patent number: 4499209
    Abstract: A Fischer-Tropsch catalyst is prepared by impregnating a silica carrier with a solution of a zirconium or titanium compound, calcining the composition thus obtained, thereafter impregnating the carrier with a cobalt compound-containing solution and calcining and reducing the composition thus obtained. Catalysts so prepared and containing 5-40 pbw of cobalt and 2-150 pbw of zirconium or titanium per 100 pbw of silica, are used in the preparation of hydrocarbons from a H.sub.2 /CO mixture.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: February 12, 1985
    Assignee: Shell Oil Company
    Inventors: Arend Hoek, Martin F. M. Post, Johannes K. Minderhoud, Peter W. Lednor
  • Patent number: 4499302
    Abstract: Preparation of aliphatic alpha, beta-unsaturated carboxylic acids from the corresponding saturated acids by oxidative dehydrogenation, at a temperature between 250.degree. and 500.degree. C., in the presence of a catalyst of empirical formula: FeP.sub.x Me.sub.y Me'.sub.t O.sub.z wherein Me is at least one alkali or alkaline earth element, Me' is at least one element selected from the group consisting of Ni, Cu, Ce, Al, Zr, Hf and Pr, x is between 0.2 and 15, y is between 0.01 and 2, t is between 0.01 and 5 and z is such as to satisfy the valencies of the other elements.
    Type: Grant
    Filed: February 11, 1980
    Date of Patent: February 12, 1985
    Assignee: Montedison S.p.A.
    Inventors: Luciano Moreschini, Leonardo Dalloro, Enrico Cavaterra, Guido Petrini, Romano Covini
  • Patent number: 4463210
    Abstract: A process for the production of ethylene, benzene and carbon monoxide from particulated biomass such as wood by reaction with methane at a temperature of from 700.degree. C. to 1200.degree. C., at a pressure of from 20 psi to 100 psi for a period of from 0.2 to 10 seconds.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: July 31, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Meyer Steinberg, Peter Fallon
  • Patent number: 4441923
    Abstract: Disclosed is a combinative integrated chemical process using inorganic reactants and yielding, if desired, organic products. The process involves first the production of elemental potassium by the thermal or thermal-reduced pressure decomposition of potassium oxide or potassium sulfide and distillation of the potassium. This elemental potassium is then used to reduce ores or ore concentrates of copper, zinc, lead, magnesium, cadmium, iron, arsenic, antimony or silver to yield one or more of these less active metals in elemental form. Process potassium can also be used to produce hydrogen by reaction with water or potassium hydroxide. This hydrogen is reacted with potassium to produce potassium hydride. Heating the latter with carbon produces potassium acetylide which forms acetylene when treated with water. Acetylene is hydrogenated to ethene or ethane with process hydrogen. Using Wurtz-Fittig reaction conditions, the ethane can be upgraded to a mixture of hydrocarbons boiling in the fuel range.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: April 10, 1984
    Inventor: Rollan Swanson
  • Patent number: 4433188
    Abstract: A process for the preparation of lower olefins from methanol or dimethyl ether by catalytic conversion at from 300.degree. to 550.degree. C. in two stages over borosilicate zeolites, wherein C.sub.2 -C.sub.4 -olefins and C.sub.1 -C.sub.4 -paraffins are removed after the first reaction stage, the C.sub.5.sup.+ hydrocarbons are passed to the second reaction stage, the aromatics are removed from the reaction product of the second stage and the remaining reaction products are recycled. The advantage of this process is an improvement in the yield of olefins.
    Type: Grant
    Filed: September 1, 1982
    Date of Patent: February 21, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Hoelderich, Wolf D. Mross, Matthias Schwarzmann