Patents by Inventor Heikki Aaltonen

Heikki Aaltonen 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: 12006480
    Abstract: The present disclosure relates to methods for processing liquefied waste polymers (LWP) containing diolefins. The LWP feed is supplied to steam stripper A to provide a distillate containing diolefins and naphtha, and a distillate bottom. The distillate is subjected to hydrotreatment B to produce a diolefin depleted distillate which is separated by distillation C to give rise to one or more fractions comprising at least a naphtha fraction, an optional middle fraction and a bottom fraction. Hydroprocessing D of the naphtha fraction gives rise to hydrogenated naphtha which is suitable as a feed for a steam cracker E. Since the distillation bottom, bottom fraction and the middle distillate are predominantly free from diolefins, they can be mixed with crude oil and processed further in oil refinery.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: June 11, 2024
    Assignee: NESTE OYJ
    Inventors: Pekka Aalto, Heikki Aaltonen, Antti Ojala, Andrea Pérez Nebreda, Emma Sairanen, Ville Paasikallio, Antti Kurkijärvi
  • Patent number: 11952544
    Abstract: The present disclosure relates to methods for processing liquefied waste polymers containing diolefins and naphtha. Hydrotreatment A of the diolefins produces a diolefin depleted LWP feed which is separated by distillation B to give rise to one or more distillates containing at least a naphtha fraction, an optional middle fraction and a distillation bottom. Hydroprocessing C of the naphtha fraction gives rise to hydrogenated naphtha fraction which is suitable as a feed for a steam cracker D. The distillation bottom and the middle fraction can mixed with crude oil and used in oil refinerery since they are predominantly free from diolefins.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: April 9, 2024
    Assignee: NESTE OYJ
    Inventors: Heikki Aaltonen, Antti Ojala, Ville Paasikallio, Antti Kurkijärvi
  • Publication number: 20240034946
    Abstract: The present disclosure relates to methods for processing liquefied waste polymers containing diolefins and naphtha. Hydrotreatment A of the diolefins produces a diolefin depleted LWP feed which is separated by distillation B to give rise to one or more distillates containing at least a naphtha fraction, an optional middle fraction and a distillation bottom. Hydroprocessing C of the naphtha fraction gives rise to hydrogenated naphtha fraction which is suitable as a feed for a steam cracker D. The distillation bottom and the middle fraction can mixed with crude oil and used in oil refinerery since they are predominantly free from diolefins.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 1, 2024
    Applicant: Neste Oyj
    Inventors: Heikki AALTONEN, Antti OJALA, Ville PAASIKALLIO, Antti KURKIJÄRVI
  • Publication number: 20230392084
    Abstract: The present disclosure relates to methods for processing liquefied waste polymers (LWP) containing diolefins. The LWP feed is supplied to steam stripper A to provide a distillate containing diolefins and naphtha, and a distillate bottom. The distillate is subjected to hydrotreatment B to produce a diolefin depleted distillate which is separated by distillation C to give rise to one or more fractions comprising at least a naphtha fraction, an optional middle fraction and a bottom fraction. Hydroprocessing D of the naphtha fraction gives rise to hydrogenated naphtha which is suitable as a feed for a steam cracker E. Since the distillation bottom, bottom fraction and the middle distillate are predominantly free from diolefins, they can be mixed with crude oil and processed further in oil refinery.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 7, 2023
    Applicant: Neste Oyj
    Inventors: Pekka AALTO, Heikki AALTONEN, Antti OJALA, Andrea PÉREZ NEBREDA, Emma SAIRANEN, Ville PAASIKALLIO, Antti KURKIJÄRVI
  • Patent number: 10023815
    Abstract: This invention relates generally to a process for producing gasoline component. More particularly, the invention relates to a process for producing high octane gasoline component using renewable raw material as an additional feedstock. Further, the invention provides a gasoline fuel component having high biocontent obtainable from co-processing of vacuum gas oil and renewable feed stock material in a catalytic cracking unit.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 17, 2018
    Assignee: NESTE OYJ
    Inventors: Aarne Sundberg, Heikki Aaltonen, Anna Karvo, Juha-Pekka Virtanen
  • Patent number: 9976222
    Abstract: The invention concerns a bubble collector guide for use in an electrolysis process, which comprises a plurality of guide members arranged at a distance from each other, the guide members comprising a lower side. The guide members can be arranged horizontally on the vertical surface of an electrode so that the lower side of the guide member forms a downwards facing surface that is substantially orthogonal to the vertical surface of the electrode, so as to collect bubbles of gas generated at the electrode.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 22, 2018
    Assignee: Outotec (Finland) Oy
    Inventors: Ville Nieminen, Henri K. Virtanen, Heikki Aaltonen
  • Publication number: 20170190991
    Abstract: This invention relates generally to a process for producing gasoline component. More particularly, the invention relates to a process for producing high octane gasoline component using renewable raw material as an additional feedstock. Further, the invention provides a gasoline fuel component having high biocontent obtainable from co-processing of vacuum gas oil and renewable feed stock material in a catalytic cracking unit.
    Type: Application
    Filed: December 29, 2016
    Publication date: July 6, 2017
    Inventors: Aarne SUNDBERG, Heikki AALTONEN, Anna KARVO, Juha-Pekka VIRTANEN
  • Publication number: 20150176145
    Abstract: The invention concerns a bubble collector guide for use in an electrolysis process, which comprises a plurality of guide members arranged at a distance from each other, the guide members comprising a lower side. The guide members can be arranged horizontally on the vertical surface of an electrode so that the lower side of the guide member forms a downwards facing surface that is substantially orthogonal to the vertical surface of the electrode, so as to collect bubbles of gas generated at the electrode.
    Type: Application
    Filed: June 6, 2013
    Publication date: June 25, 2015
    Applicant: Outotec (Finland) Oy
    Inventors: Ville Nieminen, Henri K. Virtanen, Heikki Aaltonen