With Acids Patents (Class 208/90)
  • Patent number: 9068910
    Abstract: A method of separating petroleum samples containing a hydrocarbon-soluble elemental species of interest to facilitate analysis of an elemental and/or isotopic signature. A petroleum sample is mixed with a demulsifier and separated, for example by centrifuging, into one or more intermediate organic fractions. The intermediate organic fraction(s) are mixed with a solvent such as water and a second demulsifier, then separated into one or more prepared organic fractions and one or more solvent-based fractions. Some or all of the resulting fractions are then stored for possible further processing. Optionally, the petroleum sample may be spiked with one or more of an organic standard and an inorganic standard, and the solvent may likewise be spiked with an inorganic internal standard, to facilitate later analysis.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: June 30, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Sebastien L. Dreyfus, Lloyd M. Wenger, Jr., Holger K. Justwan
  • Publication number: 20130228494
    Abstract: A hydroprocessing method and system involves introducing heavy oil and well-dispersed metal sulfide catalyst particles, or a catalyst precursor capable of forming the well-dispersed metal sulfide catalyst particles in situ within the heavy oil, into a hydroprocessing reactor. The well-dispersed or in situ metal sulfide catalyst particles are formed by 1) premixing a catalyst precursor with a hydrocarbon diluent to form a precursor mixture, 2) mixing the precursor mixture with heavy oil to form a conditioned feedstock, and 3) heating the conditioned feedstock to decompose the catalyst precursor and cause or allow metal from the precursor to react with sulfur in the heavy oil to form the well-dispersed or in situ metal sulfide catalyst particles. The well-dispersed or in situ metal sulfide catalyst particles catalyze beneficial upgrading reactions between the heavy oil and hydrogen and eliminates or reduces formation of coke precursors and sediment.
    Type: Application
    Filed: April 19, 2013
    Publication date: September 5, 2013
    Inventors: Roger K. Lott, Lap Keung Lee
  • Patent number: 8440072
    Abstract: Method of removing metals from hydrocarbon feedstock using esters of carboxylic acids, and additives for the same, are provided, wherein hydrocarbon stream including crude oil containing metals and salts thereof, wherein metal is calcium and its salt is calcium naphthenate, is mixed with an effective metal-removing-amount of an aqueous extraction-solution of non-precipitating and non-fouling additive comprising a chemical compound selected from a group consisting of methyl or ethyl or propyl or isopropyl mono- and/or di-esters of any one of the carboxylic acids selected from the groups consisting of maleic acid, maleic anhydride, and fumaric acid, or an appropriate combination of said esters, or an appropriate combination of any of said esters with any of said carboxylic acids to form a hydrocarbonous phase and an aqueous phase containing the metal ions; and separating aqueous phase.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: May 14, 2013
    Assignee: Dorf Ketal Chemicals (I) Private Limited
    Inventor: Mahesh Subramaniyam
  • Publication number: 20120055845
    Abstract: A method and apparatus for upgrading a hydrocarbon feedstock is provided. The method includes the steps of (a) supplying a hydrocarbon feedstock to an oxidation reactor, wherein the hydrocarbon feedstock is oxidized in the presence of a catalyst under conditions sufficient to selectively oxidize sulfur compounds present in the hydrocarbon feedstock; (c) separating the hydrocarbons and the oxidized sulfur compounds by solvent extraction; (d) collecting a residue stream that includes the oxidized sulfur compounds; and (e) supplying the residue stream to a coker to produce coker gases and solid coke.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 8, 2012
    Applicant: Saudi Arabian Oil Company
    Inventors: Abdennour Bourane, Omer Refa Koseoglu, Stephane Cyrille Kressmann
  • Patent number: 7967976
    Abstract: A method for treating crude or residual fuel oil includes extracting vanadium from the fuel oil by contacting the fuel oil with an adsorbent and a solvent. The adsorbent may be modified with a compound having both acidic functionality and basic functionality. The method provides effective removal of vanadium from crude or residual fuel oil at moderate temperatures.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: June 28, 2011
    Assignee: General Electric Company
    Inventors: James Manio Silva, Grigorii Lev Soloveichik
  • Patent number: 7868214
    Abstract: A process for producing olefins from a feedstock comprising a petroleum and non-petroleum fraction has been developed. The process comprises first pretreating the feedstock to remove contaminants such as alkali metals and then cracking the purified feedstock in a fluidized catalytic cracking (FCC) zone operated at conditions to provide C2-C5 olefins. Alternatively, the non-petroleum fraction can first be treated and then mixed with petroleum fraction to provide the feedstock which is then catalytically cracked.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: January 11, 2011
    Assignee: UOP LLC
    Inventor: Terry L. Marker
  • Patent number: 7731838
    Abstract: The instant invention relates to a process to produce low sulfur diesel products through the hydrodesulfurization of low nitrogen diesel boiling range feedstreams in the presence of solid acidic materials.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: June 8, 2010
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Jonathan M. McConnachie, Catalina L. Coker, Madhav Acharya
  • Publication number: 20080067109
    Abstract: The instant invention relates to a method for producing low-sulfur, low-nitrogen diesel boiling range products involving contacting a diesel boiling range feedstream with an acidic solution to selectively remove heterocyclic nitrogen-containing compounds before hydrotreating.
    Type: Application
    Filed: December 1, 2004
    Publication date: March 20, 2008
    Inventors: Mark A. Greaney, Peter W. Jacobs, John N. Begasse, Jeffrey M. Dysard
  • Patent number: 7288685
    Abstract: A process for producing olefins from biorenewable feedstocks has been developed. The process comprises first pretreating the feedstock, e.g. vegetable oil, to remove contaminants such as alkali metals and then cracking the purified feedstock in a fluidized catalytic cracking (FCC) zone operated at conditions to provide C2-C5 olefins.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: October 30, 2007
    Assignee: UOP LLC
    Inventor: Terry L. Marker
  • Publication number: 20030094400
    Abstract: A process for removing sulfur from hydrocarbon streams is described. The organic sulfur compounds are first oxidized to create oxidized sulfur in the hydrocarbon stream and then processing the hydrocarbon stream with hydrogen at hydrodesulfurization conditions to reduce the sulfur to hydrogen sulfide, leaving a hydrocarbon gas stream substantially free of sulfur.
    Type: Application
    Filed: May 23, 2002
    Publication date: May 22, 2003
    Inventors: Robert Edward Levy, Alkis Stavros, Chakka Sudhakar, Vincent Paul Nero, Stephen Jude DeCanio
  • Patent number: 5160603
    Abstract: A catalytic cracking process for heavy metals and asphaltene containing feed is disclosed. A reactive sulfur compound, preferably H.sub.2 S, is dissolved in the heavy feed and then kept at a temperature and for a time sufficient to at least partially decompose the metal containing compounds and also to reduce the molecular weight of the asphaltenes. Preferably a metal scavenging additive is added to the equilibrium catalyst. The additive will rapidly remove the thermal- and sulfur-treated metal containing compounds and prevent or minimize metals poisoning of the cracking catalyst. Sulfur induced cracking of heavy oil components reduces the viscosity of the heavy feed, and permits lower temperature to be used in the cracking reactor.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: November 3, 1992
    Assignee: Mobil Oil Corporation
    Inventor: Lillian A. Rankel
  • Patent number: 4846957
    Abstract: Asphaltenes are separated from hydrocarbon oil by bringing the oil into contact with formic acid or a water-soluble organic acid consisting of carbon, hydrogen and oxygen and having at least two functional groups.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: July 11, 1989
    Assignee: The British Petroleum Company p.l.c.
    Inventors: Graham R. Johnson, Paul R. Rutter
  • Patent number: 4790930
    Abstract: A process is disclosed for the removal of basic heterocyclic nitrogen compounds from a petroleum crude oil or fraction thereof which comprises first treating the petroleum crude oil or fraction thereof rich in basic heterocyclic nitrogen compounds in a two-phase extraction zone with an extractant consisting essentially of an aqueous solution of a lower carboxylic acid, preferably having between 1 and 15 carbon atoms. The extractant complexes the basic heterocyclic nitrogen compounds to produce a stream of petroleum crude oil or fraction thereof having a smaller content of heterocyclic nitrogen compounds and a stream comprising the lower carboxylic acid extractant with an increased quantity of basic heterocyclic nitrogen compounds. The petroleum crude oil or fraction thereof possessing a reduced quantity of heterocyclic nitrogen compounds is hydrotreated in the presence of hydrogen and a hydrotreating catalyst to further remove the basic heterocyclic nitrogen compounds.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: December 13, 1988
    Assignee: Shell Oil Company
    Inventors: Ajay M. Madgavkar, Don M. Washecheck
  • Patent number: 4552646
    Abstract: Arsenic impurities and, optionally, iron impurities are removed from a hydrocarbon-containing feed stream, preferably shale oil, by contacting it with an aqueous solution of a metal chlorate and an acid having a pKa of less than 3.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: November 12, 1985
    Assignee: Phillips Petroleum Company
    Inventor: Paul R. Stapp
  • Patent number: 4338186
    Abstract: A process for converting the raffinate from an HCl-treated shale oil to a suitable feedstock for a hydrocracking reactor for making fuels from the raffinate by hydrotreating the raffinate and thereafter water quenching the hydrotreated product.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: July 6, 1982
    Assignee: Suntech, Inc.
    Inventors: Henry E. Reif, Jeffrey P. Schwedock
  • Patent number: 4256567
    Abstract: Petroleum crudes, residual stocks, gas oils and the like which contain metals are pretreated with a sulfonating agent and the mixture separated into two fractions of which the lesser in volume has a greater concentration of metal and Conradson Carbon components. One or both of those fractions is mixed with a catalytically inert solid at high temperature to transfer metallic compounds and Conradson Carbon components to the solid for improvement of the fraction.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: March 17, 1981
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventor: David B. Bartholic
  • Patent number: 4088566
    Abstract: A transformer oil processing sequence is disclosed which produces a superior oil without the use of large doses of sulfuric acid and the resultant sludge problems. The process comprises contacting a naphthenic based oil with an oxygen-containing gas in the presence of a catalytic amount of sulfuric acid under mild conditions of temperature and pressure and caustic washing the resultant product. The caustic washed product is then hydrogenated.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: May 9, 1978
    Assignee: Texaco Inc.
    Inventors: Theodore C. Mead, Norman R. Odell
  • Patent number: 4081351
    Abstract: This invention provides an improved process for deriving motor fuel from coal which involves the steps of solubilizing coal in a liquefaction solvent; separating undissolved solids from the liquefaction solution; fractionating the liquid phase by distillation; subjecting intermediate distillate fractions to denitrification treatment; and catalytic cracking of the resultant denitrified synthetic crude oil to produce premium grade gasoline.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: March 28, 1978
    Assignee: Mobil Oil Corporation
    Inventor: Heinz Heinemann