Patents by Inventor Marja Tiitta

Marja Tiitta 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: 11959034
    Abstract: An integrated production plant system includes, at one production site at least two plants of different kinds selected from a renewable paraffinic fuel plant to produce renewable paraffinic fuel in a renewable paraffinic fuel process, a renewable fatty acid alkyl ester (FAAE) fuel plant to produce renewable FAAE fuel in a renewable FAAE process, a renewable base oil plant to produce renewable base oil in a renewable base oil process, and a renewable chemical plant to produce renewable chemical in a renewable chemical process. Each of the processes is provided with a respective renewable feed, where the feed of each of the processes originates from a common renewable system feed, and the feed to at least one of the processes is altered for example by directing at least part of the feed of at least one of the processes to another of the processes.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 16, 2024
    Assignee: NESTE OYJ
    Inventors: Anja Leminen, Jukka Hietala, Marja Tiitta, Virpi Rämö
  • 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
  • Publication number: 20240018070
    Abstract: The present disclosure provides a method for producing a cracking product fraction including propylene, C4 olefins, or both. In the method, a catalytic cracking feedstock containing a hydrocarbon feed including at least 5 wt-% isoparaffins is subjected to catalytic cracking in a catalytic cracking reactor.
    Type: Application
    Filed: October 29, 2021
    Publication date: January 18, 2024
    Applicant: Neste Oyj
    Inventors: Antti OJALA, John JAMIESON, Imane HACHEMI, Marja TIITTA, Eero KORHONEN, Marja-Liisa KÄRKKÄINEN, Eveliina MÄKELÄ
  • Patent number: 11643606
    Abstract: The present disclosure relates to methods for producing renewable base oil and other valuable renewable fuel components from a feedstock of biological origin comprising free fatty acids and glycerides. The feedstock is first separated to two or more effluent streams containing a fatty acid fraction and glyceride fraction. The glycerides are hydrolyzed to free fatty acids and glycerol, and the fatty acids thus obtained are recycled to the separating. The fatty acids are then converted to the base oil by ketonisation, hydrodeoxygenation and hydroisomerisation. The glycerol is converted to propanols by selective hydrogenolysis.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 9, 2023
    Assignee: NESTE OYJ
    Inventors: Jukka Myllyoja, Jaana Kanervo, Jaana Makkonen, Marja Tiitta
  • Publication number: 20230096222
    Abstract: An integrated production plant system includes, at one production site at least two plants of different kinds selected from a renewable paraffinic fuel plant to produce renewable paraffinic fuel in a renewable paraffinic fuel process, a renewable fatty acid alkyl ester (FAAE) fuel plant to produce renewable FAAE fuel in a renewable FAAE process, a renewable base oil plant to produce renewable base oil in a renewable base oil process, and a renewable chemical plant to produce renewable chemical in a renewable chemical process. Each of the processes is provided with a respective renewable feed, where the feed of each of the processes originates from a common renewable system feed, and the feed to at least one of the processes is altered for example by directing at least part of the feed of at least one of the processes to another of the processes.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 30, 2023
    Applicant: Neste Oyj
    Inventors: Anja LEMINEN, Jukka HIETALA, Marja TIITTA, Virpi RÄMÖ
  • Publication number: 20230069301
    Abstract: A process for hydrotreating recycled or renewable feedstocks with a catalytic microparticle slurry, and a process for manufacturing the catalytic microparticle slurry, are disclosed.
    Type: Application
    Filed: December 18, 2020
    Publication date: March 2, 2023
    Applicant: Neste Oyj
    Inventors: Kaisa LAMMINPÄÄ, Marina LINDBLAD, Maaria SELÄNTAUS, Kaija ISOKOSKI, Marja TIITTA, Emma SAIRANEN, Ville PAASIKALLIO
  • 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: 20230012831
    Abstract: The present disclosure relates to a method for upgrading liquefied waste plastics, the method including a step (A) of providing liquefied waste plastics (LWP) material, a step (B) including pre-treating the liquefied waste plastics material by contacting the liquefied waste plastics material with an aqueous medium having a pH of at least 7 at a temperature of 200° C. or more, followed by liquid-liquid separation, to produce a pre-treated liquefied waste plastics material, a step (C) including hydrotreating the pre-treated liquefied waste plastics material, optionally in combination with a co-feed, to obtain a hydrotreated material, and a step (D) of post-treating the hydrotreated material to obtain a steam cracker feed.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 19, 2023
    Applicant: Neste Oyj
    Inventors: Marja TIITTA, Pekka AALTO, Andrea PÉREZ NEBREDA, Ville PAASIKALLIO, Antti OJALA, John Jamieson
  • 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
  • Patent number: 11325894
    Abstract: The present invention relates to a method using a specific catalyst for upgrading ketoacid to intermediates for fuel and chemical industry, intermediates obtained by the method and to their use.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: May 10, 2022
    Assignee: NESTE OYJ
    Inventors: Marja Tiitta, Marina Linblad
  • Publication number: 20220081626
    Abstract: The present disclosure relates to methods for producing renewable base oil and other valuable renewable fuel components from a feedstock of biological origin comprising free fatty acids and glycerides. The feedstock is first separated to two or more effluent streams containing a fatty acid fraction and glyceride fraction. The glycerides are hydrolyzed to free fatty acids and glycerol, and the fatty acids thus obtained are recycled to the separating. The fatty acids are then converted to the base oil by ketonisation, hydrodeoxygenation and hydroisomerisation. The glycerol is converted to propanols by selective hydrogenolysis.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 17, 2022
    Applicant: Neste Oyj
    Inventors: Jukka MYLLYOJA, Jaana KANERVO, Jaana MAKKONEN, Marja TIITTA
  • Publication number: 20220049174
    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: Application
    Filed: November 25, 2019
    Publication date: February 17, 2022
    Applicant: Neste Oyj
    Inventors: Merja KOUVA, Kalle LEHTO, Markku KURONEN, Marja TIITTA, Ulla KIISKI
  • Publication number: 20220049172
    Abstract: The present disclosure is related to a multistep process for producing renewable gasoline components from a glyceride containing feedstock. The glycerides are split to provide a stream containing fatty acids, or esters of fatty acids, and another stream containing glycerol and water. Glycerol, preferably as crude glycerol recovered from splitting, is next converted to propanols at vapor phase, providing a renewable propanol gasoline component. Another renewable gasoline component is obtained from hydroprocessing of the fatty acids or esters thereof, as a renewable paraffinic naphtha component. Blending the renewable components can provide a novel 100% renewable gasoline.
    Type: Application
    Filed: December 20, 2019
    Publication date: February 17, 2022
    Applicant: Neste Oyj
    Inventors: Marja TIITTA, Anna KARVO, Ulla KIISKI, Terhi KOLEHMAINEN, Jukka MYLLYOJA, Ville PAASIKALLIO
  • Publication number: 20220041939
    Abstract: The present disclosure provides a versatile process for producing valuable renewable hydrocarbons from triglyceride containing feedstock. The triglyceride containing feedstock is first split to provide a mixture containing fatty acids, glycerol and water, from which a phase separation provides an oily phase, and an aqueous phase. The oily phase containing fatty acids is subjected to fractionation, whereby specific fractions may be refined to products with controlled hydroprocessing. Products may contain paraffinic renewable aviation fuel components, paraffinic renewable base oil, renewable paraffinic diesel fuel components, renewable paraffinic technical fluid, or any combination thereof.
    Type: Application
    Filed: December 20, 2019
    Publication date: February 10, 2022
    Applicant: Neste Oyj
    Inventors: Marja TIITTA, Jukka MYLLYOJA, Väinö SIPPOLA
  • Patent number: 10947457
    Abstract: The present invention relates to a method for production of a fuel composition, more specifically a middle distillate fuel composition, and a composition—in particular a co feed composition comprising a furanyl containing oligomerisation composition admixed with one or more material component comprising fatty acids or fatty acid derivatives and the use of such composition.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 16, 2021
    Assignee: NESTE OYJ
    Inventors: Ulla Kiiski, Marina Lindblad, Marja Tiitta, Kaija Isokoski
  • Publication number: 20200087578
    Abstract: The present invention relates to a method for production of a fuel composition, more specifically a middle distillate fuel composition, and a composition—in particular a co feed composition comprising a furanyl containing oligomerisation composition admixed with one or more material component comprising fatty acids or fatty acid derivatives and the use of such composition.
    Type: Application
    Filed: December 13, 2017
    Publication date: March 19, 2020
    Applicant: Neste Oyj
    Inventors: Ulla Kiiski, Marina Lindblad, Marja TIITTA, Kaija Isokoski
  • Publication number: 20190345124
    Abstract: The present invention relates to a method using a specific catalyst for upgrading ketoacid to intermediates for fuel and chemical industry, intermediates obtained by the method and to their use.
    Type: Application
    Filed: December 28, 2017
    Publication date: November 14, 2019
    Applicant: Neste Oyj
    Inventors: Marja TIITTA, Marina LINBLAD
  • Publication number: 20190136145
    Abstract: The present invention relates to middle distillate fuel blends, in particular renewable diesel fuel blends comprising a mixture of aryl ethers.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 9, 2019
    Applicant: Neste Oyj
    Inventors: Ulla Kiiski, Maija Rouhiainen, Marja Tiitta
  • Patent number: 9272239
    Abstract: Disclosed is a method relating to hydrocarbon production by gasification of carbonaceous material, for example, a two-stage gas washing method as a part of gas refining. Disclosed is a method for hydrogen sulfide and carbon dioxide removal from synthesis gas produced by gasification. Disclosed is a use of a combination of two chemical wash approaches. The process can be utilized as a part of biomass to liquid (BTL) process.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 1, 2016
    Assignee: NESTE OYJ
    Inventors: Jan Wahlström, Juhani Aittamaa, Isto Eilos, Kari I. Keskinen, Jukka Koskinen, Marja Tiitta, Heli Vuori
  • Patent number: 9040766
    Abstract: The invention relates to a method for the manufacture of branched saturated hydrocarbons, said method comprising the steps where a feed comprising olefins having at least 10 carbons is simultaneously hydrogenated and isomerized in the presence of hydrogen at a temperature of 100-400° C., under hydrogen partial pressure of 0.01-10 MPa, in the presence of a catalyst comprising a metal selected from the metals of Group VIIIb of the Periodic Table of Elements, a molecular sieve selected from ten member ring molecular sieves, twelve member ring molecular sieves and mesoporous molecular sieves embedded with zeolite, and a carrier, to yield branched saturated hydrocarbons.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: May 26, 2015
    Assignee: NESTE OIL OYJ
    Inventors: Mika Kettunen, Vaino Sippola, Marja Tiitta