Patents Represented by Attorney Charles A. Huggett

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  • Catalyst for hydrotreating residual petroleum oil
    Patent number: 4351717
    Abstract: A catalyst for hydrotreating residual petroleum oil has a pore size distribution related to the measured size distribution of sulfur, nickel and vanadium containing molecules in the residual oil to be hydrotreated. The size distribution of the sulfur, nickel and vanadium containing molecules in the residual oil is measured by gel permeation chromatography. From this measured size distribution, the catalyst pore size distribution which produces desired demetalization and desulfurization is determined for specified process conditions. A catalyst having the determined pore size distribution is produced by calcining alumina at different temperatures to produce alumina with the determined pore size distribution. The alumina is impregnated with cobalt molybdenum to produce the catalyst which is tailored to produce the desired demetalization and desulfurization of the residual oil to be treated.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: September 28, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Stephen B. Jaffe
  • Shaped articles from poly(p-methylstyrene) blends
    Patent number: 4351884
    Abstract: Shaped articles of a blend of PPMS and triallyl cyanurate or isocyanurate are provided. They are thermoformed and irradiated with sufficient ionizing radiation to effect sufficient cross-linking to render the shaped article resistant to fatty foods under microwave oven conditions. Claims are also directed to the method.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: September 28, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Arthur B. Robertson
  • In situ leaching process
    Patent number: 4350391
    Abstract: A process is described for maintaining a relatively high and constant concentration in the leachate of an in situ leaching operation as the mineral value in the formation is depleted, and without reducing the daily production, by adjusting the pumping rate of lixiviant proportionally to the depletion of the mineral value. A method for achieving this result by increasing the residence time of the leach solution in the formation is also disclosed.
    Type: Grant
    Filed: August 19, 1980
    Date of Patent: September 21, 1982
    Assignee: Mobil Oil Company
    Inventor: Tsoung-Yuan Yan
  • Catalytic cracking catalyst
    Patent number: 4350614
    Abstract: Non-hyrogenative endothermic catalytic cracking of hydrocarbon, particularly petroleum, fractions at relatively low pressures and high temperatures in a system where the endothermic heat required for cracking is supplied by catalyst as the heat transfer medium, which catalyst has been heated by burning coke deposited on the catalyst during cracking; and wherein a decomposable compound of platinum, palladium, ruthenium, iridium, osmium, rhodium or rhenium, is introduced into contact with the cracking catalyst during said process.
    Type: Grant
    Filed: September 26, 1980
    Date of Patent: September 21, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Albert B. Schwartz
  • Process for converting ethane to aromatics over gallium-activated zeolite
    Patent number: 4350835
    Abstract: A catalytic process is provided for converting gaseous feedstocks containing ethane to liquid aromatics by contacting said gaseous feeds in the absence of added air or oxygen, under conversion conditions, with a crystalline zeolite catalyst having incorporated therein a minor amount of gallium, thereby converting the ethane in the feedstock to aromatics and recovering a liquid mixture of benzene, toluene and xylene.
    Type: Grant
    Filed: February 19, 1981
    Date of Patent: September 21, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Arthur W. Chester, Yung F. Chu
  • Separately supported polymetallic reforming catalyst
    Patent number: 4349433
    Abstract: There is provided, in accordance with the present invention, a catalyst composition made up of a mixture of two components, one component comprising a minor proportion of platinum and rhenium on a support and the second component comprising a minor proportion of iridium on a separate support. A process for reforming a charge stock, such as naphtha, utilizing such catalyst is also provided.
    Type: Grant
    Filed: March 25, 1981
    Date of Patent: September 14, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Hans J. Schoennagel
  • Packaging tray
    Patent number: 4349146
    Abstract: A molded food packaging tray for use in packaging meats, fish, poultry and other comestibles in conjunction with a transparent overwrap film. The inventive packaging tray is provided with a novel peripheral lip structure which will aid in preventing the collapse or fracture of the tray side walls in view of pressures exerted by the overwrap film when applied to the tray in an automatic tray overwrap machine.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: September 14, 1982
    Assignee: Mobil Oil Corporation
    Inventor: M. James Holden
  • Downhold injection of well-treating chemical during production by gas lift
    Patent number: 4347899
    Abstract: A liquid well-treating chemical composition is injected into the production tubing during gas lift operations by providing a differential pressure operated valve downhole from the lowermost gas lift flow valve and maintaining sufficient liquid head of the chemical composition in the annulus to open the valve and cause the liquid chemical composition to pass into the interior of the production tubing.
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: September 7, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Robert F. Weeter
  • Process for preparation of improved shrink wrap
    Patent number: 4348438
    Abstract: A process is disclosed for preparing a low density polymer shrink wrap which comprises uniaxially cold-orienting and irradiating a film formed from a low density ethylene homopolymer or copolymer, and then forming a wrap by sealing a portion of the film along a seam which runs generally perpendicular to the direction of the orientation.
    Type: Grant
    Filed: December 31, 1980
    Date of Patent: September 7, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Peter J. Canterino
  • Phase correcting seismic traces
    Patent number: 4348749
    Abstract: This specification discloses a system and method for processing deconvolved seismic traces to compensate for phase distortion introduced in deconvolving the traces. The method provides for automatically processing the traces in an automatic data processing machine. A filter is generated from the signal pulse of the seismic energy applied to the earth in obtaining the seismic traces and this filter is applied to the deconvolved seismic traces to phase correct the traces.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: September 7, 1982
    Assignee: Mobil Oil Corporation
    Inventor: James N. Galbraith, Jr.
  • Thermoplastic food wrapping film having improved cling
    Patent number: 4348455
    Abstract: The shear strength cling of thermoplastic food wrap film is improved by coating at least one surface of the film with a composition comprising a major proportion of an alkali metal dialkyl sulfosuccinate and a minor proportion of a high boiling moisturizing liquid.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: September 7, 1982
    Assignee: Mobil Oil Corporation
    Inventor: William J. Clayton
  • Oriented p-methyl styrene polymer
    Patent number: 4347344
    Abstract: Biaxially-oriented film comprising a layer of solid thermoplastic methyl styrene polymer, said polymer having at least 90 percent repeating units of 4-methyl-styrene.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventors: S. Christine Ong, Margaret N. Bright
  • Thermoplastic carrying bag with polyolefin resin blend
    Patent number: 4346834
    Abstract: According to the present invention, it has been found that blended polyolefin resins containing linear low density polyethylene copolymers (LLDPE) are advantageous in the manufacturing of thermoplastic films and bags. The blended polyolefin resins are particularly well suited for making seamless-wall handled strap bags from thin tubular film consisting essentially of a homogeneous blend of HDPE, LLDPE, and ordinary branched LDPE. Superior physical properties of blown film from this blend permits the fabrication of economical carrying bags from thinner film, resulting in substantial material savings.
    Type: Grant
    Filed: November 18, 1980
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Ranjit Mazumdar
  • Method for treating alkaline effluents resulting from petroleum processing
    Patent number: 4347225
    Abstract: The present invention is a method for treating alkaline effluents resulting from petroleum processing by incinerating the effluents in the presence of oxygen and a sufficient amount of hydrogen sulfide fuel to convert the alkaline material to the corresponding sulfate.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Costandi A. Audeh, Saverio G. Greco
  • Treatment of effluent resulting from conversion of methanol to gasoline in order to decrease durene and produce distillate
    Patent number: 4347397
    Abstract: A novel process for the reduction of durene produced in a methanol to gasoline conversion process is disclosed wherein either the total effluent from said process or a bottoms fraction containing durene is contacted with an isomerization catalyst at elevated temperatures in order to convert said durene.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Francis G. Dwyer, Albin Huss, Jr.
  • Conversion of paraffinic hydrocarbons to aromatics over zeolite catalysts
    Patent number: 4347395
    Abstract: Paraffinic hydrocarbons of 2 to 16 carbon atoms are converted to aromatic in the presence of oxygen and a zeolite catalyst incorporating oxidative dehydrogenative metal or metal oxide components
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Yung F. Chu, Arthur W. Chester
  • Process for separating 1,4 cineoles from 1,8 cineoles
    Patent number: 4347189
    Abstract: A method of separating 1,4 cineole from a mixture containing 1,4 and 1,8 cineoles wherein the mixture is contacted with a zeolite having a constraint index of from 0.2 to 12 and having port sizes of approximately 6.7-7.0 angstroms. This causes the 1,4 cineole to be sorbed into the zeolite while the 1,8 cineole is excluded. The zeolite is then separated from the 1,8 cineole so that the 1,4 cineole may be desorbed from the zeolite. This desorbtion may be accomplished by heating the zeolite to a temperature above the boiling point of the cineole or by liquid phase displacement.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Theodore P. Goldstein
  • Treatment of subterranean uranium-bearing formations
    Patent number: 4346936
    Abstract: A process is described for improving yields and leaching rates of mineral values in highly reducing uranium-bearing formations, while minimizing deleterious environmental impact, by injecting an oxidant such as gaseous air or O.sub.2 into the formation prior to leaching. The preoxidation may be enhanced by the presence of CO.sub.2 gas in the pre-leaching oxidant. The process is particularly suitable for systems employing a CO.sub.2 /O.sub.2 lixiviant. The presence of sulfate ion further improves the leaching rate of such a system.
    Type: Grant
    Filed: August 19, 1980
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Tsoung-Yuan Yan
  • Method for treating sulfur-containing effluents resulting from petroleum processing
    Patent number: 4347226
    Abstract: The present invention is a method for disposal of noxious waste products generated in petroleum refining including spent caustic solution and concentrated sulfur effluent from treating of petroleum fractions to remove sulfur therefrom. Essentially the spent caustic solution and the concentrated sulfur effluent is incinerated in the presence of air in order to form the oxides of sulfur which react with the incinerated caustic to form alkali metal sulfides.
    Type: Grant
    Filed: March 3, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventors: Costandi A. Audeh, Saverio G. Greco
  • Oil recovery process employing a non-ionic glucan in combination with clay flocculant
    Patent number: 4347146
    Abstract: Certain glucans are made useful as mobility control agents in subterranean oil recovery by the addition of a clay flocculant to minimize adsorption losses. Because of the non-ionic character of glucans, these losses are excessive in the absence of the flocculants used herein.
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: August 31, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Milton K. Abdo