Patents by Inventor Albert L. Hensley, Jr.

Albert L. Hensley, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5338878
    Abstract: A process is provided for separating alkyl carbonate from a feedstock comprising at least one alkyl carbonate and at least one alkanol comprising extracting the alkyl carbonate from the feedstock in a liquid-liquid extraction step comprising a first extraction solvent comprising hydrocarbon selective for extracting alkyl carbonates relative to alkanol in an amount sufficient to extract a substantial portion of the alkyl carbonate from the feedstock and a second solvent comprising water in an amount sufficient to extract a substantial portion of the alkanol from the feedstock.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: August 16, 1994
    Assignee: Amoco Corporation
    Inventors: Michael A. Pacheco, Franklin D. Darrington, Albert L. Hensley, Jr.
  • Patent number: 5275990
    Abstract: A method is provided for regenerating a molecular sieve-free resid hydroprocessing catalyst for use with an ebullated bed reaction process comprising at least one hydrogenation metal and at least one Group IIA metal deposited on an inorganic oxide support wherein the catalyst contains a pore volume of pores having a diameter greater than 1200 Angstroms of at least 0.05 cc/gm. The method comprises the steps of contacting the molecular sieve-free resid hydroprocessing catalyst with a contaminant metal-containing hydrocarbon feedstream in a first contacting step at conditions sufficient to deposit contaminant metals and coke onto the catalyst; and contacting the coke-deactivated, contaminant metal-containing, molecular sieve-free catalyst with an oxygen-containing gas in a second contacting step at oxidation conditions sufficient to remove a substantial amount of the coke from the coke-deactivated, contaminant metal-containing, molecular sieve-free catalyst.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: January 4, 1994
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr.
  • Patent number: 5221656
    Abstract: A hydroprocessing catalyst and process of using such catalyst wherein such catalyst has at least one hydrogenation metal deposited on an inorganic oxide support and is further characterized by a surface area of greater than about 220 m.sup.2 /g, a pore volume of about 0.23-0.30 cc/g in pores greater than about 600 Angstroms radius, an average pore radius of about 30-70 Angstroms in pores less than 600 Angstroms, and an incremental pore volume curve with a maximum at about 25-50 Angstroms radius.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: June 22, 1993
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr., Simon G. Kukes, David C. Arters
  • Patent number: 5154819
    Abstract: The present invention relates to a hydroprocessing process that employs a catalyst that has been regenerated by subjecting the catalyst to an initial partial decoking step, followed by impregnation with a Group IIA metal-containing component and then subjected to a final decoking step.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: October 13, 1992
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr.
  • Patent number: 5100855
    Abstract: Disclosed is an improved catalyst mixture suitable for use in the hydrodemetallization, hydrodesulfurization, hydrodenitrogenation, and hydroconversion of a hydrocarbon feedstock containing asphaltenes, metals and Shell hot filtration solids precursors. The catalyst mixture has one component of the mixture which is a relatively small pore catalyst and another component which is a catalyst that possesses a relatively large amount of macropore volume.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: March 31, 1992
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr., David Lyzinski
  • Patent number: 5087596
    Abstract: The present invention relates to a spent hydroprocessing catalyst regeneration process wherein the catalyst is subjected to an initial partial decoking step, followed by impregnation with a Group VIB metal-containing component, and then subjected to a final decoking step.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: February 11, 1992
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr.
  • Patent number: 5071538
    Abstract: The present invention relates to a spent hydroprocessing catalyst regeneration process wherein the catalyst is subjected to an initial partial decoking step, followed by the addition of at least one rare earth metal, and then subjected to a final decoking step.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: December 10, 1991
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr.
  • Patent number: 5009770
    Abstract: A process of concurrently dedusting and upgrading particulate laden raw, whole retort oil is provided which comprises the steps of: retorting solid hydrocarbon-containing material such as oil shale to liberate an effluent stream of dust laden hydrocarbons; injecting the dust-laden retort effluent product stream into a catalytic hydrotreater; agitating the product stream in the hydrotreater to constantly maintain the particulates in suspension within the oil; catalytically hydrotreating the agitated product stream in the presence of a hydroprocessing gas at a pressure of from 500 to 3000 psi, a temperature of from 650.degree. to 850.degree. F. and a space velocity of from 0.1 to 6.0 hr.sup.-1, whereby the suspended particulates are agglomerated to facilitate solid-liquid separation and substantial amounts of sulfur and nitrogen contaminants are simultaneously removed from the resulting ungraded oil; and mechanically separating the agglomerated particulates from the upgraded whole oil.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: April 23, 1991
    Assignee: Amoco Corporation
    Inventors: Jeffrey T. Miller, Albert L. Hensley, Jr.
  • Patent number: 5009771
    Abstract: Disclosed is an improved process for the hydrodemetallization, hydrodesulfurization, hydrodenitrogenation, and hydroconversion of a hydrocarbon feedstock containing asphaltenes, metals and Shell hot filtration solids precursors. The process utilizes a catalyst mixture wherein one component of the mixture is a relatively small pore catalyst and another component is a catalyst that possesses a relatively large amount of macropore volume.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: April 23, 1991
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr., David Lyzinski, Lawrence B. Peck
  • Patent number: 4997799
    Abstract: The present invention relates to a spent hydroprocessing catalyst regeneration process wherein the catalyst is subjected to an initial partial decoking step, followed by the addition of at least one rare earth metal, and then subjected to a final decoking step.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: March 5, 1991
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr.
  • Patent number: 4994423
    Abstract: The present invention relates to a spent hydroprocessing catalyst regeneration process wherein the catalyst is subjected to an initial partial decoking step, followed by impregnation with a Group IIA metal-containing component, and then subjected to a final decoking step.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: February 19, 1991
    Assignee: Amoco Corporation
    Inventors: Frederick T. Clark, Albert L. Hensley, Jr.
  • Patent number: 4981576
    Abstract: There is disclosed a catalyst, which catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one metal of Group VIII, a crystalline molecular sieve zeolite, and a porous refractory inorganic oxide. Suitable molecular sieve zeolites are those having pore diameters of at least 5 .ANG. (0.5 nm) and containing exchangeable cations, for example, faujasite-type crystalline aluminosilicates, mordenite-type crystalline aluminosilicates, ZSM-type crystalline aluminosilicates, and AMS-type crystalline metallosilicates.There are also disclosed processes for the hydrodenitrogenation and hydrocracking of a hydrocarbon stream containing a substantial amount of nitrogen compounds, which processes comprise contacting said stream under suitable conditions and in the presence of hydrogen with the aforesaid catalyst.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: January 1, 1991
    Assignee: Amoco Corporation
    Inventors: A. Martin Tait, Thomas D. Nevitt, Albert L. Hensley, Jr.
  • Patent number: 4980328
    Abstract: The present invention relates to a hydrocracking catalyst that contains a combination of two ultrastable zeolite Y components wherein one of the zeolites is relatively more dealuminated than the other.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: December 25, 1990
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, Christopher L. Marshall, P. Donald Hopkins, Albert L. Hensley, Jr.
  • Patent number: 4954241
    Abstract: Disclosed is a multiple stage process wherein a hydrocarbon feedstock is hydrotreated in a hydrotreating stage. After removal of ammonia and hydrogen sulfide from the hydrotreated feedstock, the hydrotreated feedstock is hydrocracked in a three zone hydrocracking stage.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: September 4, 1990
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, Albert L. Hensley, Jr., Jeffrey C. Kelterborn, James L. Aderhold, Jr.
  • Patent number: 4950383
    Abstract: A process for hydrocracking a hydrocracking feedstock with hydrogen at hydrocracking conversion conditions which comprises contacting the feedstock with a first catalyst comprising a nickel component, a molybdenum component and a phosphorus component deposited on a support component consisting essentially of a refractory metal oxide, and a second catalyst comprising a cobalt component, a chromium component and a molybdenum component deposited on a support component consisting essentially of a refractory metal oxide component and a molecular sieve component.This process is particularly suitable for the hydrocracking of shale oil feedstocks which typically have high nitrogen contents, i.e., total nitrogen at least about 0.2 wt %.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: August 21, 1990
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Andrew M. Tait, Albert L. Hensley, Jr.
  • Patent number: 4940530
    Abstract: A two-stage hydrocarbon process is disclosed wherein a hydrocarbon feedstock is first hydrotreated followed by a hydrocracking step wherein a portion of the hydrotreated feedstock is hydrocracked in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from 25 to 60 wt. % based on the weight of the support component with the balance being alumina.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: July 10, 1990
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, Albert L. Hensley, Jr., Jeffrey C. Kelterborn, James L. Aderhold
  • Patent number: 4925546
    Abstract: The present invention relates to a hydrocracking process that utilizes a catalyst that contains a combination of two ultrastable zeolite Y components providing improved naphtha yield and catalyst activity.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: May 15, 1990
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, Christopher L. Marshall, P. Donald Hopkins, Albert L. Hensley, Jr.
  • Patent number: 4797196
    Abstract: Disclosed is a hydrocracking process wherein the feedstock is first contacted with a first catalyst containing a nickel component and a tungsten component supported on a support containing alumina and a crystalline molecular sieve followed by subsequent contact with a second hydrocracking catalyst containing a cobalt component and a molybdenum component supported on a support containing silica-alumina and a crystalline molecular sieve and the first catalyst. This subsequent contact with the second and first catalysts is carried out either serially or in one step wherein the first and second catalysts are physically mixed.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: January 10, 1989
    Assignee: Amoco Corporation
    Inventors: Simon G. Kukes, L. Charles Gutberlet, Albert L. Hensley, Jr.
  • Patent number: 4771027
    Abstract: There are disclosed a catalyst and a process for the hydrodenitrogenation of a hydrocarbon stream containing a substantial amount of nitrogen compounds, such as whole shale oil.The catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one Group VIII metal deposed upon a porous alumina-silica support, the silica of said support being present in an amount within the range of about 10 wt % to about 50 wt %, based upon the weight of said support.The process comprises contacting the hydrocarbon stream under hydrodenitrogenation conditions and in the presence of hydrogen with the aforesaid catalyst.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: September 13, 1988
    Assignee: Amoco Corporation
    Inventors: A. Martin Tait, Thomas D. Nevitt, Albert L. Hensley, Jr.
  • Patent number: 4738768
    Abstract: There is disclosed a catalyst, which catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one metal of Group VIII, a crystalline molecular sieve zeolite, and a porous refractory inorganic oxide. Suitable molecular sieve zeolites are those having pore diameters of at least 5 .ANG. (0.5 nm) and containing exchangeable cations, for example, faujasite-type crystalline aluminosilicates, mordenite-type crystalline aluminosilicates, ZSM-type crystalline aluminosilicates, and AMS-type crystalline metallosilicates.There is also disclosed a process, which process comprises contacting a hydrocarbon stream containing a substantial amount of nitrogen under hydrotreating conditions and in the presence of hydrogen with the aforesaid catalyst.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: April 19, 1988
    Assignee: Amoco Corporation
    Inventors: A. Martin Tait, Thomas D. Nevitt, Albert L. Hensley, Jr.