Patents by Inventor Peter Kokayeff

Peter Kokayeff 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).

  • Publication number: 20130259765
    Abstract: A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. A hydrocracking separator separates recycle gas and hydrocarbons from the hydrocracking unit to be processed with effluent from the hydrotreating unit.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 3, 2013
    Applicant: UOP LLC
    Inventors: Paul R. Zimmerman, Peter Kokayeff
  • Patent number: 8518241
    Abstract: Methods for processing a hydrocarbonaceous feedstock flows are provided. In one aspect, the method includes providing two or more hydroprocessing stages disposed in sequence, each hydroprocessing stage having a hydroprocessing reaction zone with a hydrogen requirement and each stage in fluid communication with the preceding stage. A hydrogen source is provided substantially free of hydrogen from a hydrogen recycle compressor. The hydrocarbonaceous feedstock flow is separated into an portions of fresh feed for each hydroprocessing stage, and the first portion of fresh feed to the first hydroprocessing stage is heated. The heated first portion of fresh feed is supplied with hydrogen from the hydrogen source in an amount satisfying substantially all of the hydrogen requirements of the hydroprocessing stages to a first hydroprocessing zone. The unheated second portion of fresh feed is admixed with effluent from previous stage to quench the hot reactor effluent before entering a second stage.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: August 27, 2013
    Assignee: UOP LLC
    Inventors: John A. Petri, Vedula K. Murty, Peter Kokayeff
  • Patent number: 8314276
    Abstract: A method of hydroprocessing hydrocarbons is provided using a substantially liquid-phase reactor having first and second catalyst beds with a heat transfer section positioned therebetween. The first and second catalyst beds and the heat transfer section are combined within the same reactor vessel. Each catalyst bed having an inlet temperature and an exit temperature and having a hydroprocessing catalyst therein with a maximum operating temperature range.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: November 20, 2012
    Assignee: UOP LLC
    Inventors: John A. Petri, Peter Kokayeff
  • Publication number: 20120269695
    Abstract: A method for obtaining a petroleum distillate product is provided, the method includes subjecting an untreated light Fischer-Tropsch liquid to a two-step hydrogenation process, each step to be carried in the presence of a catalyst comprising an amorphous substrate having a metallic composition embedded therein. After the first step of hydrogenation, an intermediate hydrotreated light Fischer-Tropsch liquid is obtained, followed by the second step of hydrogenation thereof, obtaining the petroleum distillate product as a result. An apparatus for carrying out the method is also provided.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 25, 2012
    Applicant: UOP LLC
    Inventor: Peter Kokayeff
  • Patent number: 8283506
    Abstract: A process has been developed for producing fuel from renewable feedstocks such as plant and animal oils and greases. The process involves treating a first portion of a renewable feedstock by hydrogenating and deoxygenating in a first reaction zone and a second portion of a renewable feedstock by hydrogenating and deoxygenating in a second reaction zone and treating the effluents in a finishing reaction zone to provide a diesel boiling point range fuel hydrocarbon product. If desired, the hydrocarbon product can be isomerized to improve cold flow properties. A portion of the hydrocarbon product is recycled to the first reaction zone to increase the hydrogen solubility of the reaction mixture.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: October 9, 2012
    Assignee: UOP LLC
    Inventors: Peter Kokayeff, Terry L. Marker, John A. Petri
  • Patent number: 8231776
    Abstract: A method for obtaining a petroleum distillate product is provided, the method includes subjecting an untreated light Fischer-Tropsch liquid to a two-step hydrogenation process, each step to be carried in the presence of a catalyst comprising an amorphous substrate having a metallic composition embedded therein. After the first step of hydrogenation, an intermediate hydrotreated light Fischer-Tropsch liquid is obtained, followed by the second step of hydrogenation thereof, obtaining the petroleum distillate product as a result. An apparatus for carrying out the method is also provided.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: July 31, 2012
    Assignee: UOP LLC
    Inventor: Peter Kokayeff
  • Patent number: 8221706
    Abstract: Apparatuses for processing a hydrocarbonaceous feedstock flows are provided. In one aspect, the method includes providing two or more hydroprocessing stages disposed in sequence, each hydroprocessing stage having a hydroprocessing reaction zone with a hydrogen requirement and each stage in fluid communication with the preceding stage. A hydrogen source is provided substantially free of hydrogen from a hydrogen recycle compressor. The hydrocarbonaceous feedstock flow is separated into an portions of fresh feed for each hydroprocessing stage, and the first portion of fresh feed to the first hydroprocessing stage is heated. The heated first portion of fresh feed is supplied with hydrogen from the hydrogen source in an amount satisfying substantially all of the hydrogen requirements of the hydroprocessing stages to a first hydroprocessing zone. The unheated second portion of fresh feed is admixed with effluent from previous stage to quench the hot reactor effluent before entering a second stage.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: July 17, 2012
    Assignee: UOP LLC
    Inventors: John A. Petri, Vedula K. Murty, Peter Kokayeff
  • Publication number: 20120090223
    Abstract: Embodiments of a method for producing a diesel range material having improved cold flow properties are provided. In one embodiment, the method includes the steps of providing a waxy diesel range feedstock, producing an intermediary product stream containing a predetermined amount of oxygenated organocompounds from the waxy diesel range feedstock, and contacting the intermediary product stream with a dewaxing catalyst under process conditions at which the oxygenated organocompounds chemically interact with the dewaxing catalyst to convert a portion of the n-paraffins within the intermediary product stream to iso-paraffins while minimizing cracking of the diesel range material.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 19, 2012
    Applicant: UOP LLC
    Inventors: Peter Kokayeff, Suheil Abdo
  • Publication number: 20120080288
    Abstract: Two-stage hydroprocessing uses a common dividing wall fractionator. Hydroprocessed effluents from both stages of hydroprocessing are fed to opposite sides of the dividing wall.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: UOP LLC
    Inventors: John A. Petri, Vedula K. Murty, Peter Kokayeff
  • Publication number: 20120080356
    Abstract: Two-stage hydroprocessing uses a common dividing wall fractionator. Hydroprocessed effluents from both stages of hydroprocessing are fed to opposite sides of the dividing wall.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: UOP LLC
    Inventors: John A. Petri, Vedula K. Murty, Peter Kokayeff
  • Publication number: 20120080355
    Abstract: A process is provided to produce an ultra low sulfur diesel using a two stage hydrotreating reaction zone. The first stage hydrotreater may operate with a continuous liquid phase.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: UOP LLC
    Inventors: John A. Petri, Vedula K. Murty, Peter Kokayeff
  • Publication number: 20120074038
    Abstract: A process for hydroprocessing a hydrocarbonaceous feedstock in a continuous liquid phase utilizes a hydroprocessing catalyst comprising pills that have a largest dimension that averages no more than 1.27 mm ( 1/20 inch) and more than 100 nm to produce a hydrocarbonaceous product stream.
    Type: Application
    Filed: September 27, 2010
    Publication date: March 29, 2012
    Applicant: UOP LLC
    Inventors: John A. Petri, Peter Kokayeff, Paul A. Sechrist
  • Publication number: 20110274587
    Abstract: A method of hydroprocessing hydrocarbons is provided using a substantially liquid-phase reactor having first and second catalyst beds with a heat transfer section positioned therebetween. The first and second catalyst beds and the heat transfer section are combined within the same reactor vessel. Each catalyst bed having an inlet temperature and an exit temperature and having a hydroprocessing catalyst therein with a maximum operating temperature range.
    Type: Application
    Filed: July 20, 2011
    Publication date: November 10, 2011
    Applicant: UOP LLC
    Inventors: John Anthony Petri, Peter Kokayeff
  • Patent number: 8008534
    Abstract: A method of hydroprocessing hydrocarbons is provided using a substantially liquid-phase reactor having first and second catalyst beds with a heat transfer section positioned therebetween. The first and second catalyst beds and the heat transfer section are combined within the same reactor vessel. Each catalyst bed having an inlet temperature and an exit temperature and having a hydroprocessing catalyst therein with a maximum operating temperature range.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: August 30, 2011
    Assignee: UOP LLC
    Inventors: John Anthony Petri, Peter Kokayeff
  • Patent number: 8003836
    Abstract: A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as plant oils, animal fats and oils, and greases. The process involves treating a renewable feedstock by hydrogenating and deoxygenating to provide a diesel boiling range fuel hydrocarbon product. If desired, the hydrocarbon product can be isomerized to improve cold flow properties. A portion of the hydrocarbon product is recycled to the treatment zone to increase the hydrogen solubility of the reaction mixture.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: August 23, 2011
    Assignee: UOP LLC
    Inventors: Terry L. Marker, Peter Kokayeff, Suheil F. Abdo, Tom N. Kalnes
  • Patent number: 7999142
    Abstract: A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as plant oils and animal oils, fats, and greases. The process involves treating a renewable feedstock by hydrogenating and deoxygenating i.e. decarboxylating, decarbonylating, and/or hydrodeoxygenating to provide a hydrocarbon fraction useful as a diesel boiling range fuel or diesel boiling range fuel blending component. If desired, the hydrocarbon fraction can be isomerized to improve cold flow properties. A portion of the hydrogenated and deoxygenated feedstock is selectively separated and then recycled to the treatment zone to increase the hydrogen solubility of the reaction mixture.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: August 16, 2011
    Assignee: UOP LLC
    Inventors: Tom N. Kalnes, Terry L. Marker, John P. Brady, Peter Kokayeff
  • Patent number: 7999143
    Abstract: A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as plant and animal fats and oils. The process involves treating a renewable feedstock by hydrogenating and deoxygenating to provide a hydrocarbon fraction useful as a diesel boiling range fuel. Water is added to the deoxygenation reaction to drive carbon monoxide and water to react to form hydrogen and carbon dioxide. The hydrogen is then consumed by the reactions. If desired, the hydrocarbon fraction can be isomerized to improve cold flow properties.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: August 16, 2011
    Assignees: UOP LLC, ENI S.p.A.
    Inventors: Terry L. Marker, Peter Kokayeff, Giovanni Faraci, Franco Baldiraghi
  • Patent number: 7982075
    Abstract: A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as plant and animal fats and oils. The process involves treating a renewable feedstock by hydrogenating and deoxygenating i.e. decarboxylating, decarbonylating, and hydrodeoxygenating to provide a hydrocarbon fraction useful as a diesel boiling range fuel. A sulfur containing component is added to drive the conversion preferentially through carbonylation and carbonylation with reduced hydrodeoxygenation. If desired, the hydrocarbon fraction can be isomerized to improve cold flow properties.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: July 19, 2011
    Assignees: UOP LLC, ENI S.p.A.
    Inventors: Terry L. Marker, Peter Kokayeff, Suheil F. Abdo, Franco Baldiraghi, Luigina M. F. Sabatino
  • Patent number: 7982076
    Abstract: A process has been developed for producing diesel boiling range fuel from renewable feedstocks such as plant oils, animal fats and oils, and greases. The process involves treating a renewable feedstock by hydrogenating and deoxygenating to provide a diesel boiling range fuel hydrocarbon product. If desired, the hydrocarbon product can be isomerized to improve cold flow properties. A portion of the hydrocarbon product is recycled to the treatment zone to increase the hydrogen solubility of the reaction mixture.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: July 19, 2011
    Assignee: UOP LLC
    Inventors: Terry L. Marker, Peter Kokayeff, Suheil F. Abdo, Tom N. Kalnes
  • Publication number: 20110123406
    Abstract: A process is provided to produce an ultra low sulfur diesel with less than about 10 ppm sulfur using a two-phase or liquid-phase continuous reaction zone to convert a diesel boiling range distillate preferably obtained from a mild hydrocracking unit. In one aspect, the diesel boiling range distillate is introduced once-through to the liquid-phase continuous reaction zone over-saturated with hydrogen in an amount effective so that the liquid phase remains substantially saturated with hydrogen throughout the reaction zone as the reactions proceed.
    Type: Application
    Filed: February 4, 2011
    Publication date: May 26, 2011
    Applicant: UOP LLC
    Inventors: Peter Kokayeff, Laura E. Leonard, Michael R. Smith