Patents by Inventor Matti Nieminen

Matti Nieminen 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: 20240158699
    Abstract: A method and a process arrangement for treating a feed before a quench column in an integrated process, in which the integrated process comprises at least one gasifier for forming a gasifier flow, at least one cracking furnace for forming a cracker flow, at least one quench column for treating the feed comprising the gasifier flow and cracker flow and at least one transfer line to supply the feed to the quench column. The gasifier flow is cooled at least partly for killing chemical reactions after a gasification, the cracker flow is cooled at least partly after the cracking furnace, the gasifier flow is combined to the cracker flow before a transfer line valve of the transfer line to form the feed to the quench column, and temperature of the feed is controlled to a predetermined temperature of the transfer line before the quench column.
    Type: Application
    Filed: March 4, 2022
    Publication date: May 16, 2024
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Matti NIEMINEN, Christer TOLERGÅRD
  • Publication number: 20240150664
    Abstract: A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750° C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Matti NIEMINEN, Matti REINIKAINEN
  • Patent number: 11905477
    Abstract: A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750° C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: February 20, 2024
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Matti Nieminen, Matti Reinikainen
  • Publication number: 20230313987
    Abstract: The invention relates to a feeder and method for feeding raw material which comprises plastic to a gasification, pyrolysis or combustion furnace, in which the feeder comprises a screw feeder part and a pneumatic feeder part in order to form a combined feeder for feeding the raw material, the screw feeder part comprises at least a screw to transfer the raw material to the pneumatic feeder part and at least one cooling device to cool the raw material in the screw feeder part, and the pneumatic feeder part arranged after the screw feeder part comprises at least one inlet to supply pneumatic carrier material to the raw material in the pneumatic feeder part for forming a mixture of the raw material and pneumatic carrier material.
    Type: Application
    Filed: August 11, 2021
    Publication date: October 5, 2023
    Inventor: Matti Nieminen
  • Publication number: 20230312436
    Abstract: The invention relates to a method and process arrangement for producing hydrocarbons from plastic containing raw material by means of a gasification process in which the plastic containing raw material is gasified with steam at low gasification temperature of 680-740° C. in a fluidized bed gasifier for forming a product mixture comprising hydrocarbons, and the residence time is below 4 s at the gasification temperature, and the product mixture is cooled rapidly after the gasification to temperature which is below 640° C. for slowing and/or stopping the gasification reaction of the plastic containing raw material in order to increase propylene yield of the gasification process. Further, the invention relates to the use of the method.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 5, 2023
    Inventor: Matti NIEMINEN
  • Publication number: 20220230772
    Abstract: The present invention relates to a method for treating waste material comprising organic components and low and/or intermediate level radioactive agents. The method comprises adding material comprising fibers and kaolin to the waste material in order to form a starting material, and gasifying the starting material at a temperature between 600 and 950° C. to form a gaseous fraction and a solid fraction comprising low and/or intermediate level radioactive agents, gasification residues of the organic components and metakaolin. The present invention also relates to a use of mate-rial comprising fibers and kaolin.
    Type: Application
    Filed: May 4, 2020
    Publication date: July 21, 2022
    Inventors: Matti NIEMINEN, Tapio VEHMAS, Markku LEIVO, Jaana LAATIKAINEN-LUNTAMA, Markus OLIN
  • Publication number: 20220230771
    Abstract: The present invention relates to a method for treating waste material comprising organic components and low and/or medium level radioactive agents. The method comprises encapsulating the waste material into a matrix, gasifying the waste material at a temperature between 600 and 950° C. to form a gaseous fraction and a solid fraction comprising low and/or medium level radioactive agents and combustion residues of the organic components and encapsulating the solid fraction by a geopolymer matrix comprising metakaolin.
    Type: Application
    Filed: May 6, 2020
    Publication date: July 21, 2022
    Inventors: Tapio VEHMAS, Markku LEIVO, Matti NIEMINEN, Jaana LAATIKAINEN-LUNTAMA, Markus OLIN
  • Publication number: 20220145194
    Abstract: A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750° C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.
    Type: Application
    Filed: February 21, 2020
    Publication date: May 12, 2022
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Matti NIEMINEN, Matti REINIKAINEN
  • Patent number: 11300288
    Abstract: The solution comprises a method of and a system for maintaining steam temperature and therefore electricity production efficiency with decreased loads of a steam turbine power plant comprising a fluidized bed boiler (12) and a fluidized bed superheater (2) adapted to superheat steam supplied to a steam turbine (3). According to the solution, the steam temperature may be maintained by providing, outside a furnace (10), additional heating to the fluidized bed material in its outer circulation, thereby increasing the amount of thermal energy available in the fluidized bed material to be transferred in the fluidized bed superheater (2) to the steam supplied to the steam turbine (3). Such additional heating may be performed by selectably supplying combustible gas with nozzles (111) into and/or burned with a burner in or in the vicinity of the fluidized bed material outside the furnace (10). As an additional aspect of the disclosed solution, the combustible gas may be produced with a gasifier (4).
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: April 12, 2022
    Assignee: Valmet Technologies Oy
    Inventors: Mikko Varonen, Matti Nieminen
  • Publication number: 20220049170
    Abstract: The invention relates to an apparatus for treating waste material including organic components and radioactive agents. In the apparatus the waste material including organic components and radioactive agents are gasified at temperature between 600-950° C. in a fluidized bed reactor to form a gaseous material. The gaseous material is than cooled in a water quenching device so that temperature is between 300-500° C. after the cooling. The solid fraction including radioactive agents is removed from the gaseous material in a in at least one filtration device. A gas scrubbing device then removes sulphur by scrubbing the treated gaseous material after the filtration in order to form a treated gaseous material.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Esa KURKELA, Matti NIEMINEN
  • Patent number: 11241648
    Abstract: An apparatus and a method for cleaning a stream. The apparatus having at least one hot filtration device, which includes a filter vessel and at least one filter candle located inside the filter vessel, an inlet of medium in an upper part of the filter vessel for supplying the medium including particles to the filter vessel, an outlet of the medium in the bottom part for discharged the medium from the filter vessel, a moving bed including the medium which is arranged in the vessel so that the filter candle is inside the moving bed, at least one feed inlet for supplying the stream to the filter vessel, and at least one gas outlet for supplying a purified gas out from the filter vessel.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: February 8, 2022
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Sampo Ratinen, Yrjo Solantausta, Matti Nieminen, Christian Lindfors, Anssi Kalli
  • Publication number: 20200363056
    Abstract: The solution comprises a method of and a system for maintaining steam temperature and therefore electricity production efficiency with decreased loads of a steam turbine power plant comprising a fluidized bed boiler (12) and a fluidized bed superheater (2) adapted to superheat steam supplied to a steam turbine (3). According to the solution, the steam temperature may be maintained by providing, outside a furnace (10), additional heating to the fluidized bed material in its outer circulation, thereby increasing the amount of thermal energy available in the fluidized bed material to be transferred in the fluidized bed superheater (2) to the steam supplied to the steam turbine (3). Such additional heating may be performed by selectably supplying combustible gas with nozzles (111) into and/or burned with a burner in or in the vicinity of the fluidized bed material outside the furnace (10). As an additional aspect of the disclosed solution, the combustible gas may be produced with a gasifier (4).
    Type: Application
    Filed: October 17, 2018
    Publication date: November 19, 2020
    Inventors: Mikko VARONEN, Matti NIEMINEN
  • Publication number: 20200061513
    Abstract: An apparatus and a method for cleaning a stream. The apparatus having at least one hot filtration device, which includes a filter vessel and at least one filter candle located inside the filter vessel, an inlet of medium in an upper part of the filter vessel for supplying the medium including particles to the filter vessel, an outlet of the medium in the bottom part for discharged the medium from the filter vessel, a moving bed including the medium which is arranged in the vessel so that the filter candle is inside the moving bed, at least one feed inlet for supplying the stream to the filter vessel, and at least one gas outlet for supplying a purified gas out from the filter vessel.
    Type: Application
    Filed: May 9, 2018
    Publication date: February 27, 2020
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Sampo RATINEN, Yrjo SOLANTAUSTA, Matti NIEMINEN, Christian LINDFORS, Anssi KALLI
  • Publication number: 20150240170
    Abstract: A method and apparatus for treating waste material having organic components and radioactive agents. The method including the steps of gasifying the waste material at temperature between 600-950° C. in a reactor to form a gaseous material. The gaseous material is cooled to a temperature between 300-500° C., after the cooling the solid fraction including the radioactive agents are removed.
    Type: Application
    Filed: October 9, 2013
    Publication date: August 27, 2015
    Inventors: Esa Kurkela, Matti Nieminen
  • Patent number: 6293209
    Abstract: A process for treating a raw material containing aluminum or a similar metal melting at a low temperature and organic matter, including metal separation, particularly intended for the treatment of liquid container rejects consisting of aluminum foil, polymer material and possible fibre residues in order to recover the aluminum and to utilise the organic matter as a fuel. The raw material is introduced in a bubbling fluidised bed, where the organic matter is gasified at a temperature higher than the melting point of the metal present. The gas removed from the fluidised bed and the entrained metal are subsequently cooled to a temperature below the melting point of metal by admixing a cooling medium such as water in the gas flow. The solid metal particles are eventually separated from the gas e.g. with a cyclone and the gas flow is possibly filtered before combustion.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: September 25, 2001
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Matti Nieminen, Esa Kurkela
  • Patent number: 5396669
    Abstract: A transfer and nursing system for a patient, including a lifting frame having a pair of opposing sides formed by profile bars, the profile bars each having at least two grooves running longitudinally therein. A bearing arrangement is provided for suspending the lifting frame. A lifting sheet and an underlay element are detachably securable to the profile bars of the lifting frame by an arrangement for detachably securing the lifting sheet and the underlay sheet in the grooves of the profile bar so that a plurality of lifting sheets and underlay sheets can be attached to the frame.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: March 14, 1995
    Assignee: A. Ahlstrom Corporation
    Inventor: Matti Nieminen
  • Patent number: 4997524
    Abstract: The invention relates to a method and an apparatus for cutting off and guiding a strip cut from the edge of a paper web in a threading operation. The strip is released from a cylinder by blowing and is guided by pocket blowing so as to form a bag and is then cut off. The strip is conducted through an arrangement functioning as a draw-press, which pulls the strip against a cutting member of a cutting device in such a way that it is severed and the strip can immediately be transferred further.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: March 5, 1991
    Assignee: Valmet-Ahlstrom Inc.
    Inventors: Matti Nieminen, Pentti Alatalo