Patents by Inventor Ulla Kiiski

Ulla Kiiski 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: 11965137
    Abstract: The present invention relates to the field of gasoline and gasoline compositions or blends. More specifically the invention relates to a novel fuel or gasoline composition with synergistic effects and use thereof, and in particular a synergistic effect with respect to the octane rating/octane number.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: April 23, 2024
    Assignee: NESTE OYJ
    Inventors: Ulla Kiiski, Anna Karvo, Terhi Kolehmainen
  • Publication number: 20240025828
    Abstract: A process for converting steam cracking products into an alcohol composition consisting essentially of 2-propanol and butanols is disclosed. The process includes steam cracking and recovery of a stream including propene and butenes, which are next converted catalytically in the presence of water to 2-propanol and butanols respectively.
    Type: Application
    Filed: November 16, 2021
    Publication date: January 25, 2024
    Applicant: Neste Oyj
    Inventors: Marja TIITTA, Ulla KIISKI, Anna KARVO, Terhi KOLEHMAINEN
  • Patent number: 11795408
    Abstract: Methods of making a diesel fuel blend having enhanced cold properties; methods of lowering the cloud point of a mineral middle distillate fuel; and diesel fuel blends including a blend of a renewable fuel and a mineral middle distillate fuel.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: October 24, 2023
    Assignee: NESTE OYJ
    Inventors: Markku Kuronen, Ulla Kiiski
  • Publication number: 20230313060
    Abstract: Methods of making a diesel fuel blend having enhanced cold properties; methods of lowering the cloud point of a mineral middle distillate fuel; and diesel fuel blends including a blend of a renewable fuel and a mineral middle distillate fuel.
    Type: Application
    Filed: May 11, 2023
    Publication date: October 5, 2023
    Applicant: Neste Oyj
    Inventors: Markku KURONEN, Ulla KIISKI
  • Patent number: 11773339
    Abstract: A method is disclosed for preparing an aviation fuel composition by subjecting a feedstock of biological and/or recycled origin to cracking in a cracking unit and to fractionation in a fractionation unit to obtain a kerosene fraction. The obtained kerosene fraction is subjected to hydrotreatment in a hydrotreatment unit to form a first jet fuel component. The formed first jet fuel component is mixed with a further jet fuel component to form a fuel composition having a wear scar diameter of 0.78 mm or less, as measured with BOCLE lubricity test method according to ASTM D5001. The feedstock contains one or more of tall oil pitch (TOP), a mixture of sludge palm oil, palm fatty acid distillate and animal fat (FATS), and used lubricant oil (ULO).
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: October 3, 2023
    Assignee: NESTE OYJ
    Inventors: Ulla Kiiski, Jenni Nortio, Kati Sandberg
  • Publication number: 20230279305
    Abstract: A renewable hydrocarbon composition as disclosed includes monobranched isoparaffins, dibranched isoparaffins, tribranched isoparaffins multibranched isoparaffins, and n-paraffins, having carbon numbers from C8 to C30. Said renewable hydrocarbon composition has high cetane number and excellent cold properties. The renewable hydrocarbon composition can be used as diesel fuel or as a diesel fuel component.
    Type: Application
    Filed: May 10, 2023
    Publication date: September 7, 2023
    Applicant: Neste Oyj
    Inventors: Markku KURONEN, Ulla KIISKI, Jenni NORTIO, Anne RUONAKANGAS
  • Patent number: 11718800
    Abstract: The present disclosure relates to methods for preparing aviation fuel component from a feedstock containing fossil hydrotreating feed and a second feed containing esters of fatty acids and rosins, free fatty acids and resin acids. The method includes subjecting the feedstock to hydrotreatment reaction conditions to produce a hydrotreated stream, separating the hydrotreated stream to three fractions from which at least part the highest boiling fraction is subjected to hydrocracking reaction to produce a hydrocracked stream. At least part of the hydrocracked stream is admixed with at least part of the hydrotreated stream, and their admixture is processed further until desired conversion of the feedstock to the aviation fuel component is obtained.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: August 8, 2023
    Assignee: NESTE OYJ
    Inventors: Ulla Kiiski, Salla Likander, Kati Sandberg, Pirjo Saikkonen
  • Publication number: 20230227745
    Abstract: A novel octane enhanced intermediate hydrocarbon composition having a high bio-component content in the composition through the use of a renewable first gasoline component is herein disclosed. The intermediate hydrocarbon composition includes a renewable first gasoline component in an amount of from 5 to 50%-vol of the total intermediate hydrocarbon composition volume and the rest consisting of a second gasoline component, wherein the second hydrocarbon gasoline component includes unsaturated hydrocarbons from 50 to 90%-vol of the second gasoline component volume.
    Type: Application
    Filed: August 26, 2021
    Publication date: July 20, 2023
    Applicant: Neste Oyj
    Inventors: Juha KESKIVÄLI, Anna KARVO, Ulla KIISKI
  • Patent number: 11692148
    Abstract: A method is disclosed for preparing a renewable fuel blend. The method includes subjecting at least two feedstocks of different biological origins to catalytic cracking in a catalytic cracking unit and to hydrotreatment in a hydrotreatment unit to form a fuel blend having an aromatic hydrocarbon content from 26 to 42 wt-% and a paraffinic hydrocarbon content of less than 53 wt-%, as measured according to ASTM D2425-04 (2011). The fuel blend is formed by mixing the at least two feedstocks together before subjecting them to the catalytic cracking and hydrotreatment, or by obtaining a first fuel component and at least one further fuel component from the catalytic cracking and hydrotreatment of the at least two feedstocks, and mixing the first fuel component and the at least one further fuel component together.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: July 4, 2023
    Assignee: NESTE OYJ
    Inventors: Jenni Nortio, Ulla Kiiski, Pirjo Saikkonen
  • Patent number: 11667859
    Abstract: A renewable hydrocarbon composition as disclosed includes monobranched isoparaffins, dibranched isoparaffins, tribranched isoparaffins multibranched isoparaffins, and n-paraffins, having carbon numbers from C8 to C30. Said renewable hydrocarbon composition has high cetane number and excellent cold properties. The renewable hydrocarbon composition can be used as diesel fuel or as a diesel fuel component.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: June 6, 2023
    Assignee: NESTE OYJ
    Inventors: Markku Kuronen, Ulla Kiiski, Jenni Nortio, Anne Ruonakangas
  • Publication number: 20230134111
    Abstract: The present disclosure relates to methods for preparing aviation fuel component from a feedstock containing fossil hydrotreating feed and a second feed containing esters of fatty acids and rosins, free fatty acids and resin acids. The method includes subjecting the feedstock to hydrotreatment reaction conditions to produce a hydrotreated stream, separating the hydrotreated stream to three fractions from which at least part the highest boiling fraction is subjected to hydrocracking reaction to produce a hydrocracked stream. At least part of the hydrocracked stream is admixed with at least part of the hydrotreated stream, and their admixture is processed further until desired conversion of the feedstock to the aviation fuel component is obtained.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 4, 2023
    Applicant: Neste Oyj
    Inventors: Ulla KIISKI, Salla LIKANDER, Kati SANDBERG, Pirjo SAIKKONEN
  • Patent number: 11613718
    Abstract: A multipurpose fuel composition is disclosed which contains a petroleum derived jet fuel component and a renewable jet fuel component, wherein the multipurpose fuel composition has a freezing point of ?40° C. or below, and an exemplary cetane number more than 40, preferably more than 45, more preferably more than 50.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: March 28, 2023
    Assignee: NESTE OYJ
    Inventors: Markku Kuronen, Ulla Kiiski, Jenni Nortio, Kati Sandberg
  • Publication number: 20230082920
    Abstract: The invention discloses methods for manufacturing and using a diesel fuel composition comprising a cetane number improver, a fossil fuel component, and a hydrotreated renewable fuel component manufactured by hydrotreating and isomerising renewable raw material.
    Type: Application
    Filed: October 31, 2022
    Publication date: March 16, 2023
    Applicant: Neste Oyj
    Inventors: Ulla KIISKI, Markku KURONEN, Jenni NORTIO
  • Patent number: 11566193
    Abstract: The present invention relates to an aviation fuel composition comprising an aviation range fuel component and a diesel range fuel component originating from renewable sources, the diesel range fuel component having a cloud point of at most about ?20° C. and existent gum more than about 7 mg/100 ml, wherein existent gum of the aviation fuel composition is at most about 7 mg/100 ml.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: January 31, 2023
    Assignee: NESTE CORPORATION
    Inventors: Kati Sandberg, Ulla Kiiski
  • Patent number: 11560525
    Abstract: A diesel fuel composition containing a renewable diesel component and oxymethylene ethers having molecular structure CH3O—(CH2O)n-CH3 with n=3-5 (OME3-5). A method for producing a diesel fuel composition and use thereof. Use of OME3-5 to decrease particle emission of renewable diesel fuels is further disclosed.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: January 24, 2023
    Assignee: NESTE OYJ
    Inventors: Merja Kouva, Kalle Lehto, Markku Kuronen, Marja Tiitta, Ulla Kiiski
  • Publication number: 20220411702
    Abstract: The present disclosure provides a marine fuel component produced from feedstock of biological origin and a method for producing the same. The present disclosure provides marine fuel blends containing the marine fuel component of biological origin and at least one additional marine fuel.
    Type: Application
    Filed: November 13, 2020
    Publication date: December 29, 2022
    Applicant: Neste Oyj
    Inventors: Teemu SARJOVAARA, Riikka-Mari HAARA, Merja KOUVA, Ulla KIISKI, Jesse VILJA
  • Publication number: 20220396744
    Abstract: The present invention relates to the field of gasoline and gasoline compositions or blends. More specifically the invention relates to a novel fuel or gasoline composition with synergistic effects and use thereof, and in particular a synergistic effect with respect to the octane rating/octane number.
    Type: Application
    Filed: November 13, 2020
    Publication date: December 15, 2022
    Applicant: Neste Oyj
    Inventors: Ulla KIISKI, Anna KARVO, Terhi KOLEHMAINEN
  • Publication number: 20220364004
    Abstract: A renewable hydrocarbon composition as disclosed includes monobranched isoparaffins, dibranched isoparaffins, tribranched isoparaffins multibranched isoparaffins, and n-paraffins, having carbon numbers from C8 to C30. Said renewable hydrocarbon composition has high cetane number and excellent cold properties. The renewable hydrocarbon composition can be used as diesel fuel or as a diesel fuel component.
    Type: Application
    Filed: December 2, 2021
    Publication date: November 17, 2022
    Applicant: Neste Oyj
    Inventors: Markku KURONEN, Ulla KIISKI, Jenni NORTIO, Anne RUONAKANGAS
  • Patent number: 11485924
    Abstract: Methods are disclosed for manufacturing and using diesel fuel components having a cetane number improver and a renewable fuel component manufactured by hydrotreating and isomerising renewable raw material.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 1, 2022
    Assignee: NESTE OYJ
    Inventors: Ulla Kiiski, Markku Kuronen, Jenni Nortio
  • Patent number: 11401477
    Abstract: The present invention relates to middle distillate fuel blends, in particular renewable diesel fuel blends comprising a mixture of aryl ethers.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 2, 2022
    Assignee: NESTE OYJ
    Inventors: Ulla Kiiski, Maija Rouhiainen, Marja Tiitta