Abstract: The invention provides a process for hydrotreating an organic feedstock containing oxygen compounds and a halogen component by means of removing the oxygen compounds with an adsorbent and then contacting the resulting organic feedstock having a reduced concentration of oxygen compounds and a gaseous recycle stream containing hydrogen with a hydrogenation catalyst in a hydrogenation reaction zone to produce an anhydrous liquid stream comprising hydrogenated hydrocarbonaceous compounds having a reduced concentration of halogen and a hydrogen halide compound. The resulting effluent from the hydrogenation zone is optionally separated to produce a hydrogenated hydrocarbonaceous stream having a reduced level of halogen and an anhydrous stream comprising a hydrogen halide compound.
Type:
Grant
Filed:
March 10, 1993
Date of Patent:
October 11, 1994
Assignee:
UOP
Inventors:
Chwu-Ching Jan, Mark D. Moser, Tom N. Kalnes, George R. Hibel
Abstract: Novel supported catalysts, well adapted for the catalytic conversion of exhaust gases emanating from internal combustion engines, include a porous carrier material, e.g., alumina spheres, such porous carrier material having a catalytically effective amount of at least one non-platinum group catalytically active element, e.g., cerium, essentially homogeneously concentrated throughout the depth of a defined peripheral face surface layer (outer band or ring) thereof.
Abstract: Efficiency of low pressure gas plasma processes is increased by addition of small quantities of water vapor to the primary gas constituting the plasma. Treated fabrics and polymer films show decreased wetting angle and increased capillary absorption, which beneficially affects the material's susceptibility to dyeing and impregnation.
Type:
Grant
Filed:
April 6, 1992
Date of Patent:
September 6, 1994
Assignee:
Plasma Plus
Inventors:
Georgy Z. Paskalov, Svetlana A. Krapivina, Alexander K. Filippov
Abstract: A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene by linear olefins to produce linear alkyl benzenes at temperatures no greater than 140.degree. C. These catalysts also are effective in the liquid phase alkylation of alkylatable aromatics generally with a variety of alkylating agents, including olefins, alcohols, and alkyl halides.
Abstract: An improved process for treating a sour hydrocarbon stream has been developed. This process involves contacting the sour hydrocarbon fraction with a metal oxide solid solution in the presence of an oxidizing agent such as air or oxygen. One example of a solid solution which can be used is a nickel oxide/magnesium oxide/aluminum oxide solid solution.
Type:
Grant
Filed:
October 14, 1993
Date of Patent:
August 23, 1994
Assignee:
UOP
Inventors:
Ralph D. Gillespie, Jennifer S. Holmgren
Abstract: There is disclosed a process for the photochemical and thermal stabilisation of polyamide fibre material as claimed in claim 1.The fibre materials treated by the inventive process are distinguished by good fibre affinity and enhanced photochemical and thermal stability.
Abstract: Higher hydrocarbons are produced from methane by reacting the methane at elevated temperature, suitably in the range from 600.degree. to 800.degree. C., with an oxygen-containing gas having a ratio of methane to oxygen of greater than the stoichiometric ratio for complete combustion in the presence as catalyst of a lithium-doped material which under the reaction conditions is a physically base-stable, non-melting, oxygen-stable compound of an element of Groups III to VIII of the Periodic Table of the Elements including the rare earth elements.
Abstract: This invention discloses an improved integrated two step process for conversion of methane to liquid hydrocarbons of gasoline range. The invention particularly comprises catalytic oxidative conversion of methane with free oxygen to ethylene and higher olefins containing gaseous product in the first step and catalytic conversion of the olefins from the product stream of the first step without separating them to liquid hydrocarbons of gasoline range in the second step, for the conversion of methane to liquid hydrocarbons. The process of the present invention could be used in the petroleum industry for the production of gasoline and liquid hydrocarbon fuels and aromatic hydrocarbons.
Type:
Grant
Filed:
July 10, 1992
Date of Patent:
August 9, 1994
Assignee:
Council of Scientific & Industrial Research
Inventors:
Vasant R. Choudhary, Subhash D. Sansare, Sopan T. Chaudhari
Abstract: The present invention is directed to a novel halosilane cocatalyst component which may be used in conjunction with an aluminum-containing cocatalyst to provide enhanced catalytic activity of a vanadium based solid catalyst component in the polymerization of .alpha.-olefins. In addition to the enhancement in the catalytic activity obtaining using the present catalyst system, the resultant polymer produced by the present invention exhibits improved physical properties compared with polymers produced by prior art vanadium based catalyst systems. Thus, the catalyst system of the instant invention represents an advance in the art in view of the combination of increased catalytic activity, i.e. yield of polymer produced, and enhanced physical properties of the polyolefin produced.In accordance with the present invention, a catalyst system is provided which comprises a solid catalyst component and a halosilane cocatalyst component.
Type:
Grant
Filed:
January 29, 1993
Date of Patent:
August 2, 1994
Assignee:
Quantum Chemical Corporation
Inventors:
Raghu Menon, Albert P. Masino, Mark K. Reinking
Abstract: This invention relates to a process for converting a carbonaceous material to a liquid product using a hydrogen donor solvent. More specifically, this invention relates to a process for hydroconverting carbonaceous material in which a 400.degree.-1000.degree. F. hydroconversion product fraction is further hydrocracked and a hydrocracked fraction is used as the hydrogen donor solvent. An increased quantity of liquid product is achieved by removing an ash residuum from the hydroconversion product fraction prior to the hydrocracking process.
Abstract: A method of preparing a catalyst particularly useful in the reaction of ethylene, oxygen and acetic acid in the vapor phase to form vinyl acetate comprises impregnating a porous support with water soluble salts of palladium and gold, fixing the palladium and gold on the support as water insoluble compounds by immersing the impregnated support in a reactive solution and tumbling the impregnated support in the reactive solution for at least 1/2 hour to begin precipitation of the insoluble compounds and completing precipitation of the insoluble compounds on the support and reducing the insoluble compounds to free palladium and gold. The catalysts prepared in this manner have been shown to provide improvement with respect to reduced selectivity to CO.sub.2 during the vinyl acetate forming reaction.
Type:
Grant
Filed:
October 14, 1992
Date of Patent:
July 26, 1994
Assignee:
Hoechst Celanese Corporation
Inventors:
Ioan Nicolau, Philip M. Colling, Leland R. Johnson
Abstract: Catalytic compositions and catalytic processes are provided. The catalytic compositions are produced by the process that comprises contacting an organonickel compound with a cyclicazacarbyl compound. Optionally, one or more catalytic promoters can be present in the catalytic compositions. Additionally, one or more olefins can be contacted with one or more of these catalytic compositions to form oligomerization products and/or polymerization products.
Type:
Grant
Filed:
November 23, 1992
Date of Patent:
July 26, 1994
Assignee:
Phillips Petroleum Company
Inventors:
Ronald D. Knudsen, Gil R. Hawley, Margie F. Jackson
Abstract: A composition of matter is provided comprising a catalytic mixture resulting from contacting at least one of each of the following compounds, an pyridine compound, a clay compound, and an organo-nickel compound. Additionally, a process is provided comprising contacting, under polymerization conditions, at least one alpha-olefin, with a catalytic mixture resulting from contacting at least one of each of the following compounds, an pyridine compound, a clay compound, and an organo-nickel compound.
Type:
Grant
Filed:
October 19, 1992
Date of Patent:
July 12, 1994
Assignee:
Phillips Petroleum Company
Inventors:
Margie F. Jackson, Ronald D. Knudsen, Joseph S. Shveima
Abstract: A solid catalyst component for alkene polymerization comprising a magnesium halide, an electron donor and a phenoxy-titanium halide, the latter being a dihalophenoxy-titanium halide or a dialkoxyphenoxy-titanium halide in which the alkoxy groups each have from 1 to 8 carbon atoms.
Type:
Grant
Filed:
January 19, 1993
Date of Patent:
July 12, 1994
Assignee:
Shell Oil Company
Inventors:
John C. Chadwick, Alan Villena, Ronald P. C. Van Gaalen
Abstract: A catalyst and process are disclosed for upgrading heavy feedstocks such as resid. The catalyst comprises a porous inorganic oxide support having an incremental pore volume maximum at a pore radius greater than 50 Angstroms bearing between 0.1 to 5.0 weight percent nickel and having at least 0.4 cc/g of pores having a radius less than 125 Angstroms. An ebullated bed hydroconversion process employing the catalyst also is disclosed.
Abstract: An exhaust gas containing nitrogen oxides and particulate matter is cleaned by using an exhaust gas cleaner including a heat-resistant, porous filter; a porous ceramic powder layer formed on the filter; and a catalyst supported by the ceramic powder layer, the catalyst consisting essentially of (a) at least one of alkali metal elements, (b) cobalt and/or manganese, (c) vanadium, and (d) at least one of rare earth elements, whereby the nitrogen oxides are reduced by the particulate matter in the exhaust gas serving as a reducing agent.
Abstract: A catalyst and a process for using the catalyst have been developed. The catalyst is a metal chelate dispersed on a basic support which is a combination of a solid base and a secondary component. The solid base can be a solid solution of metal oxides and/or a layered double hydroxide (LDH) and the secondary component can be calcium oxide, magnesium oxide, calcium hydroxide and magnesium hydroxide. The process involves contacting a sour hydrocarbon fraction which contains mercaptans with the catalyst in the presence of an oxidizing agent and a polar compound. Examples of these polar compounds are water and alcohols, with methanol being especially preferred. The process is unique in that the solid solution or LDH are solid bases which eliminates the need for a liquid base. Optionally, an onium compound may be used as a catalyst promoter.
Type:
Grant
Filed:
September 23, 1992
Date of Patent:
June 7, 1994
Assignee:
UOP
Inventors:
Barret A. Ferm, Blaise J. Arena, Jennifer S. Holmgren
Abstract: A method of preparing a catalyst particularly useful in the reaction of ethylene, oxygen and acetic acid in the vapor phase to form vinyl acetate comprises impregnating a porous support with water soluble salts of palladium and gold, fixing the palladium and gold on the support as water insoluble compounds by contacting the salt-impregnated support with a reactive solution in two separate fixing stages wherein the treated support is dried and allowed to stand prior to treatment in the second stage to precipitate the insoluble compounds on the support and reducing the insoluble compounds to free palladium and gold. The catalysts prepared in this manner have been shown to provide improvement with respect to reduced selectivity to CO.sub.2 during the vinyl acetate forming reaction.
Abstract: A lubricating oil composition comprising a normally liquid alpha-olefin oligomer consisting essentially of repeating units having the structural formula: ##STR1## wherein x represents an integer from 3 to 11, inclusive; andy represents the number of repeating units in the oligomer such that the weight average molecular weight is from about 5,000 to about 20,000;said oligomer having from about 70 to 100 percent head-to-tail alignment of the repeating units of the oligomer. Preferably the weight average molecular weight of the oligomer is from 5,000 to about 10,000; and said oligomer is further characterized as having a dispersity of less than about 5.5, and a Z average molecular weight of less than about 24,000.
Type:
Grant
Filed:
July 6, 1993
Date of Patent:
May 24, 1994
Assignee:
Chevron Research Company
Inventors:
David L. Beach, Paul G. Bercik, Neal E. Morganson
Abstract: A catalyst for hydrogenation use in which the carrier of the catalyst comprises at least one compound from oxides and hydroxides of aluminum, silicon, titanium, zirconium, magnesium and iron, zeolites or silica-alumina, and the catalyst has an atomic ratio (the atomic ratio of the entire catalyst including the carrier, in the case of the use of an aluminum atom-containing substance as the carrier) of Cu/Fe/Al/(an alkali metal and/or an alkaline earth metal)/Zn=1/0.4 to 2.5/0.5 to 5.0/0.001 to 0.4/0 to 1.0. According to the present invention, a copper-iron-aluminum catalyst having markedly high activity and selectivity can be obtained, and, when the catalyst is used, higher alcohols having high purity can be obtained easily.