Patents Represented by Attorney Frank J. Sroka
  • Patent number: 6096116
    Abstract: A sorbent material, an activated carbon canister and a method are described which can be utilized to remove organic compounds from a vaporous stream with a relatively greater degree of safety, as compared to previously known methods. In the invention, essentially dry and wetted activated carbon particles are intermixed in a substantially homogeneous mixture which inhibits accidental combustion. The heat capacity of wetted carbon particles retards the heating of nearby unwetted particles, so as to inhibit the ignition of the nearby unwetted particles. The presence of wetted particles intermixed in the substantially homogeneous mixture has relatively little effect on the hydrocarbon adsorption performance of the mixture.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: August 1, 2000
    Assignee: BP Amoco Corporation
    Inventors: George A. Huff, Jr., Om P. Mahajan, Don M. Washecheck, John A. Mahoney, Howard Wong, Stanley W. Sorrels
  • Patent number: 6083288
    Abstract: A strongly basic, hydrophobic amine which prevents the deposition of fuel-insoluble carboxylate deposits in fuel tanks and fuel transfer equipment is contained in a fuel additive package which minimizes the degradation of a hydrocarbon fuel during storage.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: July 4, 2000
    Assignee: BP Amoco Corporation
    Inventor: Leslie R. Wolf
  • Patent number: 6074131
    Abstract: A method of upgrading the area below a dispenser to contain accidental release harmful materials from contaminating the soil below grade without repiping, electrical changes, or concrete disruption.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: June 13, 2000
    Assignee: BP Amoco Corporation
    Inventors: Charles M. Daul, Paul A. Sivak, David Lyzinski, Albert J. Kovach
  • Patent number: 6050050
    Abstract: A method of upgrading an existing unprotected submersible pump area with secondary containment to prevent accidental release of harmful materials from contaminating the soil below grade.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: April 18, 2000
    Assignee: BP Amoco Corporation
    Inventors: Charles M. Daul, Paul A. Sivak, David Lyzinski, Albert J. Kovach
  • Patent number: 6048451
    Abstract: A product of reduced sulfur content is produced from a feedstock which is comprised of a mixture of hydrocarbons and contains organic sulfur compounds as unwanted impurities. The process comprises converting at least a portion of the sulfur-containing impurities to sulfur-containing products of higher boiling point by treatment with an alkylating agent in the presence of an acid catalyst and removing at least a portion of these higher boiling products by fractional distillation. Suitable alkylating agents include alcohols and olefins. In a preferred embodiment, catalytic cracking products which contain aromatic sulfur compounds as impurities are used as a feedstock for the process.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: April 11, 2000
    Assignee: BP Amoco Corporation
    Inventors: George A. Huff, Jr., Bruce D. Alexander, Douglas N. Rundell, William J. Reagan, Ozie S. Owen, Jin S. Yoo
  • Patent number: 6025534
    Abstract: A method is provided for regenerating a fixed bed of olefin polymerization catalyst which can be performed without taking the catalyst bed out of service. The method involves the use of two different olefin-containing feedstocks, wherein the first feedstock is a conventional olefin-containing feedstock which contains little if any content of aromatic compounds. The second feedstock contains a significant concentration of aromatic compounds. In the practice of the invention, the second feedstock is substituted for the first feedstock whenever catalyst regeneration is deemed appropriate, and the flow of the second feedstock to the catalyst bed is continued for a period of time which is effective to at least partially regenerate the catalyst.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: February 15, 2000
    Assignee: BP Amoco Corporation
    Inventors: Anthony M. Valente, David B. Johnson, George A. Huff, Jr., Robert L. Mehlberg
  • Patent number: 6024865
    Abstract: A product of reduced sulfur content is produced from a feedstock which is comprised of a mixture of hydrocarbons and includes sulfur-containing aromatic compounds as unwanted impurities. The process involves separating the feedstock by fractional distillation into a lower boiling fraction which contains the more volatile sulfur-containing aromatic impurities and at least one higher boiling fraction which contains the less volatile sulfur-containing aromatic impurities. Each fraction is then separately subjected to reaction conditions which are effective to convert at least a portion of its content of sulfur-containing aromatic impurities to higher boiling sulfur-containing products by alkylation with an alkylating agent in the presence of an acidic catalyst. The higher boiling sulfur-containing products are removed by fractional distillation.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: February 15, 2000
    Assignee: BP Amoco Corporation
    Inventors: Bruce D. Alexander, George A. Huff, Vivek R. Pradhan, William J. Reagan, Roger H. Cayton
  • Patent number: 6019885
    Abstract: An electrochemical process for extracting oxygen from an oxygen-containing gas which uses an electrochemical cell having two zones separated by a multi-component membrane made from intimate, gas-impervious, multi-phase mixture of an electronically conductive phase and an oxygen ion-conducting phase. In one zone a gas containing oxygen is passed in contact with the membrane. In the other zone a gas capable of reacting with oxygen is passed in contact with the membrane.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 1, 2000
    Assignee: The Standard Oil Company
    Inventors: Terry J. Mazanec, Thomas L. Cable, John G. Frye, Jr., Wayne R. Kliewer
  • Patent number: 5962364
    Abstract: A method for converting ?MoCp(CO).sub.3 !.sub.2, in which at least one of the Cp groups has a substitutent having a carbonyl or carboxyl group and the compound has a Mo--Mo single bond, into a resinous supported material having repeating units of the formula (MoCp).sub.2 S.sub.4. The repeating units have four bridging sulfido ligands between the two molybdenum atoms, and the repeating units are joined to each other by bridging-sulfide ligands. The method comprises reacting the molybdenum carbonyl dimer with elemental sulfur in a solvent for the starting material at a temperature between 110-120.degree. C. in the presence of a solid adsorbent support. The resinous material may be further hydrogenated, the hydrogenated material may be further reacted to form a material having a carboxyl-containing methanedithiolate ligand, and this latter material may be further hydrolyzed. The molybdenum sulfide dimers are useful for separation, purification, and recovery of unsaturated hydrocarbons.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: October 5, 1999
    Assignee: BP Amoco Corporation
    Inventors: Robert B. Wilson, Jr., Yuhua Du, David Bomberger
  • Patent number: 5954945
    Abstract: A method for converting a hydrocarbonaceous feedstock to a lower boiling temperature product is described which comprises suspending metal sulfide particles and oxide particles in a reaction zone including hydrogen and the hydrocarbonaceous feedstock at hydrocracking conditions. The metal sulfide particles and the oxide particles are introduced into the reaction zone through particle precursor fluids which precipitate upon heating to form the particles. The metal sulfide particles contain sulfidable transition metals. The oxide particles contain oxidisable elements such as magnesium, aluminum, silicon, phosphorous, calcium, scandium, titanium, gallium, germanium, zirconium, cerium, and mixtures thereof and are not hydrogenation catalysts under the reactor conditions. The oxide particles resist being chemically reduced by reducing agents in the reaction zone. Surprisingly, the presence of the oxide particles is associated with a significant reduction of coke production in the reaction zone.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: September 21, 1999
    Assignee: BP Amoco Corporation
    Inventors: Roger H. Cayton, Ronald B. Fisher, Jeffrey T. Miller, John A. Waynick
  • Patent number: 5951849
    Abstract: A method for converting a hydrocarbonaceous feedstock to a lower boiling product is described which comprises suspending metal-impregnated carbonaceous particles in a reaction zone including hydrogen and the hydrocarbonaceous feedstock at hydrocracking conditions. The metal impregnated on the particles may be sulfided in the reaction zone. The impregnated particles are shown to be surprisingly selective catalysts, and anomalous ranges of particle size and concentration are identified. Methods for preparing the particles are additionally presented.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: September 14, 1999
    Assignee: BP Amoco Corporation
    Inventors: Jeffrey T. Miller, Ronald B. Fisher, Tracy L. Marshbanks
  • Patent number: 5932778
    Abstract: A method is provided which can be used to quickly and easily take a fixed-bed of solid acid olefin polymerization catalyst out of service without causing any significant catalyst deactivation. The method involves substituting a substantially olefin-free hydrocarbon fluid for at least a portion of the olefin-containing feedstock to the polymerization process, wherein the substantially olefin-free hydrocarbon fluid boils within the range from about 20.degree. to about 250.degree. C. and contains at least about 5 vol. % aromatics.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: August 3, 1999
    Assignee: BP Amoco Corporation
    Inventors: Anthony M. Valente, David B. Johnson, George A. Huff, Jr.
  • Patent number: 5928954
    Abstract: Method for tagging hydrocarbons and for detecting the presence of tagged hydrocarbons in a hydrocarbon mixture. The method can be utilized to tag gasoline, diesel fuel, heating oil, lubricating oil or crude petroleum. The hydrocarbon to be tagged is blended with a relatively small amount of a fluorescent dye. The presence of the tagged hydrocarbon is subsequently determined by exciting the dye to fluoresce at wavelengths in the higher portion of the visible spectral region or the lower portion of the near infrared spectral region.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: July 27, 1999
    Assignee: BP Amoco Corporation
    Inventors: Michael J. Rutledge, Robert T. Roginski, George H. Vickers
  • Patent number: 5916129
    Abstract: Exhaust gas emissions from an internal combustion engine are controlled through the use of a heat exchanger, a sulfur oxide absorbent, and two catalytic converter zones. The exhaust gas is passed sequentially through: (1) a first catalytic converter zone, (2) the sulfur oxide absorbent, and (3) a second catalytic converter zone. The heat exchanger is used to transfer heat from the first catalytic converter zone to the second catalytic converter zone.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: June 29, 1999
    Assignee: BP Amoco Corporation
    Inventors: Frank S. Modica, Mark K. Barr, George A. Huff, Roger H. Cayton, Bruce D. Alexander, Richard A. Kretchmer
  • Patent number: 5914293
    Abstract: A collapsed composition is described which is substantially composed of microcrystallites collectively of the formula:M.sub.2m.sup.2+ Al.sub.2-p M.sub.p.sup.3+ T.sub.r O.sub.7+r.multidot.swhere M.sup.2+ is a divalent metal, M.sup.3+ is a trivalent metal, and T is vanadium, tungsten, or molybdenum.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: June 22, 1999
    Assignee: BP Amoco Corporation
    Inventors: Alakananda Bhattacharyya, Michael J. Foral, William J. Reagan
  • Patent number: 5863419
    Abstract: A product of reduced sulfur content is produced from a feedstock which is comprised of a mixture of hydrocarbons and contains organic sulfur compounds as unwanted impurities. The process comprises converting at least a portion of the sulfur-containing impurities to sulfur-containing products of higher boiling point by treatment with an alkylating agent in the presence of an acid catalyst and removing at least a portion of these higher boiling products by fractional distillation. The process can be carried out in a distillation column reactor wherein the acid catalyzed reaction and fractional distillation are carried out simultaneously. Suitable alkylating agents include alcohols and olefins.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: January 26, 1999
    Assignee: Amoco Corporation
    Inventors: George A. Huff, Jr., Ozie S. Owen, Bruce D. Alexander, Douglas N. Rundell, William J. Reagan, Jin S. Yoo
  • Patent number: 5853565
    Abstract: The invention provides a method for controlling the relative proportion of products produced from a petroleum residuum by thermal coking. Coke yield promoting compounds are identified, and effective attenuating agents are specified. The method can mitigate a coke promoting effect induced by certain surfactants, antifoulants, or fugitive catalysts in thermal coking units. Mitigating the coke yield promoting effect of molybdenum, for example, in a thermal coker permits recovery of a greater proportion of distillate boiling range products.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: December 29, 1998
    Assignee: Amoco Corporation
    Inventor: Roger Cayton
  • Patent number: 5843783
    Abstract: A method for tagging hydrocarbons and for detecting the presence of tagged hydrocarbons in a hydrocarbon mixture. The method can be utilized to tag gasoline, diesel fuel, heating oil, lubricating oil or crude petroleum. The hydrocarbon to be tagged is blended with a relatively small amount of a fluorescent dye. The presence of the tagged hydrocarbon is subsequently determined by exciting the dye to fluoresce at wavelengths in the higher portion of the visible spectral region or the lower portion of the rear infrared spectral region.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: December 1, 1998
    Assignee: Amoco Corporation
    Inventors: Michael J. Rutledge, Robert T. Roginski, George H. Vickers
  • Patent number: 5837128
    Abstract: A method is disclosed for optimizing the pressure drop in the catalytic conversion of a feed in a bed of catalyst particles in a vertically arranged reactor by grading the catalyst particles within the bed by pressure drop.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: November 17, 1998
    Assignee: Amoco Corporation
    Inventors: George A. Huff, Jr., Frederick T. Clark, James L. Taylor
  • Patent number: 5817908
    Abstract: A staged alkylation process in the presence of an acid catalyst in a fixed bed of particulate contact material in an alkylation reactor is disclosed.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: October 6, 1998
    Assignee: Amoco Corporation
    Inventor: Robert L. Mehlberg