Patents by Inventor Jukka A. KOSKINEN
Jukka A. KOSKINEN 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).
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Publication number: 20250048476Abstract: Various example embodiments relate to methods and apparatus that support beam management in a small data transmission procedure. A terminal device may comprise at least one processor and at least one memory. The at least one memory includes computer program code stored thereon. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the terminal device to report one or more available beams in a small data transmission procedure, receive a beam switching command to switch a serving beam for the small data transmission procedure, and switch the serving beam for the small data transmission procedure to a target beam indicated in the beam switching command.Type: ApplicationFiled: October 25, 2024Publication date: February 6, 2025Inventors: Samuli Heikki TURTINEN, Jussi-Pekka KOSKINEN, Chunli WU, Sami-Jukka HAKOLA
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Patent number: 12104319Abstract: A method for controlling a chemical recovery boiler. The method includes measuring concentrations of sodium carbonate, sodium sulfide, and sodium sulfate from green liquor of the chemical recovery boiler, determining a target temperature for smelt, imaging at least an area of a char bed of the chemical recovery boiler, the area being close to a smelt spout, to obtain an image of the area, determining a measured temperature of the char bed using the image of the area. The method further includes determining that the measured temperature of the char bed is less than the target temperature for smelt, and controlling the chemical recovery boiler such that the temperature of the char bed increases. A chemical recovery boiler for the same.Type: GrantFiled: August 16, 2022Date of Patent: October 1, 2024Assignee: VALMET AUTOMATION OYInventors: Jukka Koskinen, Mikko Leskinen, Jarmo Mansikkasalo
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Patent number: 11746470Abstract: A method for controlling carryover in a chemical recovery boiler. The method comprises feeding black or brown liquor to a furnace of the chemical recovery boiler through an injection gun to burn the black or brown liquor. The chemical recovery boiler comprises a bullnose, which narrows the furnace, and a first superheater, of which at least a part is arranged at a higher vertical level than the bullnose. The method comprises measuring information indicative of a spatial temperature distribution on a cross section of the furnace, wherein the cross section is above the injection gun and below the first superheater; determining primary information indicative of carryover using the information indicative of the spatial temperature distribution on the cross section of the furnace; and controlling a temperature of the black or brown liquor that is fed to the furnace using the primary information. In addition, a system for performing the method.Type: GrantFiled: September 9, 2020Date of Patent: September 5, 2023Assignee: VALMET AUTOMATION OYInventors: Jarmo Mansikkasalo, Jukka Koskinen
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Publication number: 20230057366Abstract: A method for controlling a chemical recovery boiler. The method includes measuring concentrations of sodium carbonate, sodium sulfide, and sodium sulfate from green liquor of the chemical recovery boiler, determining a target temperature for smelt, imaging at least an area of a char bed of the chemical recovery boiler, the area being close to a smelt spout, to obtain an image of the area, determining a measured temperature of the char bed using the image of the area. The method further includes determining that the measured temperature of the char bed is less than the target temperature for smelt, and controlling the chemical recovery boiler such that the temperature of the char bed increases. A chemical recovery boiler for the same.Type: ApplicationFiled: August 16, 2022Publication date: February 23, 2023Applicant: VALMET AUTOMATION OYInventors: Jukka KOSKINEN, Mikko LESKINEN, Jarmo MANSIKKASALO
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Publication number: 20210071361Abstract: A method for controlling carryover in a chemical recovery boiler. The method comprises feeding black or brown liquor to a furnace of the chemical recovery boiler through an injection gun to burn the black or brown liquor. The chemical recovery boiler comprises a bullnose, which narrows the furnace, and a first superheater, of which at least a part is arranged at a higher vertical level than the bullnose. The method comprises measuring information indicative of a spatial temperature distribution on a cross section of the furnace, wherein the cross section is above the injection gun and below the first superheater; determining primary information indicative of carryover using the information indicative of the spatial temperature distribution on the cross section of the furnace; and controlling a temperature of the black or brown liquor that is fed to the furnace using the primary information. In addition, a system for performing the method.Type: ApplicationFiled: September 9, 2020Publication date: March 11, 2021Inventors: Jarmo MANSIKKASALO, Jukka KOSKINEN
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Patent number: 10655849Abstract: The method in a recovery boiler comprises estimating the first melting temperature T0 of the fly ash depositing on heat transfer surfaces, the estimating being based on potassium (K) content of the fly ash; measuring or estimating the temperature Tss of superheated steam; evaluating a temperature difference TD1 between the first melting temperature T0 and the temperature Tss of the superheated steam, the temperature difference TD1 providing an estimate of the risk of corrosion; and selecting a control action for influencing the temperature difference TD1.Type: GrantFiled: June 4, 2018Date of Patent: May 19, 2020Assignee: Valmet Automation OyInventors: Jarmo Mansikkasalo, Jukka Koskinen
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Patent number: 10385513Abstract: A method for optimizing reduction and content of total titratable alkali of green liquor of a recovery boiler. The method comprises producing green liquor in a dissolving tank by conveying smelt and weak white liquor into the dissolving tank and measuring at least the contents of sodium sulphate, sodium hydroxide, sodium sulphide, and sodium carbonate of the green liquor. The method comprises controlling at least a process parameter of a recovery boiler to maximize the reduction of the recovery boiler and controlling the flow of the weak white liquor into the dissolving tank to optimize the content of total titratable alkali of the green liquor. In addition, a system for producing green liquor with optimized reduction and content of total titratable alkali. The system comprises a first sensor arrangement, a first and a second regulator, and a processing unit arrangement configured to perform the method.Type: GrantFiled: September 18, 2017Date of Patent: August 20, 2019Assignee: VALMET AUTOMATION OYInventors: Jukka A. Koskinen, Mikko Leskinen, Jarmo Mansikkasalo
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Publication number: 20180363900Abstract: The method in a recovery boiler comprises estimating the first melting temperature T0 of the fly ash depositing on heat transfer surfaces, the estimating being based on potassium (K) content of the fly ash; measuring or estimating the temperature Tss of superheated steam; evaluating a temperature difference TD1 between the first melting temperature T0 and the temperature Tss of the superheated steam, the temperature difference TD1 providing an estimate of the risk of corrosion; and selecting a control action for influencing the temperature difference TD1.Type: ApplicationFiled: June 4, 2018Publication date: December 20, 2018Inventors: Jarmo Mansikkasalo, Jukka Koskinen
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Publication number: 20180080173Abstract: A method for optimizing reduction and content of total titratable alkali of green liquor of a recovery boiler. The method comprises producing green liquor in a dissolving tank by conveying smelt and weak white liquor into the dissolving tank and measuring at least the contents of sodium sulphate, sodium hydroxide, sodium sulphide, and sodium carbonate of the green liquor. The method comprises controlling at least a process parameter of a recovery boiler to maximize the reduction of the recovery boiler and controlling the flow of the weak white liquor into the dissolving tank to optimize the content of total titratable alkali of the green liquor. In addition, a system for producing green liquor with optimized reduction and content of total titratable alkali. The system comprises a first sensor arrangement, a first and a second regulator, and a processing unit arrangement configured to perform the method.Type: ApplicationFiled: September 18, 2017Publication date: March 22, 2018Applicant: VALMET AUTOMATION OYInventors: Jukka A. KOSKINEN, Mikko LESKINEN, Jarmo MANSIKKASALO
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Patent number: 9272239Abstract: 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: GrantFiled: August 31, 2012Date of Patent: March 1, 2016Assignee: NESTE OYJInventors: Jan Wahlström, Juhani Aittamaa, Isto Eilos, Kari I. Keskinen, Jukka Koskinen, Marja Tiitta, Heli Vuori
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Patent number: 8598237Abstract: A method for adjusting hydrogen to carbon monoxide ratio of syngas contaminated by sulfur impurities involving a water gas shift (WGS) reaction. In light of the presence of the sulfur impurities, the WGS can be implemented as a sour gas shift. WGS can provide good results by using a non-sulfided catalyst. Conditions can be employed which contribute to further enhanced CO-conversion in the reaction. The hydrocarbons or derivatives thereof obtainable from the method can further be refined and used for production of fuels or lubricants for combustion engines.Type: GrantFiled: July 2, 2012Date of Patent: December 3, 2013Assignee: Neste Oil OyjInventors: Isto Eilos, Jukka Koskinen, Marja Tiitta, Sami Toppinen, Heli Vuori
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Publication number: 20130053457Abstract: A method for naphthalene removal from a gas using a solid adsorbent material including benzene for the removal. The removal can be applied to, for example, a crude syngas main stream and/or a carbon dioxide exhaust side stream. The adsorption to the adsorbent material can be reversible so that the material can be reused and naphthalene and possibly benzene can be recovered after regeneration.Type: ApplicationFiled: August 22, 2012Publication date: February 28, 2013Applicant: Neste Oil OyjInventors: Isto EILOS, Jukka Koskinen, Kyösti Lipiäinen, Marja Tiitta, Sami Toppinen, Heli Vuori, Heidi Österholm
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Publication number: 20130053456Abstract: 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: ApplicationFiled: August 31, 2012Publication date: February 28, 2013Applicant: Neste Oil OyjInventors: Jan WAHLSTRÖM, Juhani Aittamaa, lsto Eilos, Kari l. Keskinen, Jukka Koskinen, Marja Tiitta, Heli Vuori
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Publication number: 20130005838Abstract: A method for adjusting hydrogen to carbon monoxide ratio of syngas contaminated by sulfur impurities involving a water gas shift (WGS) reaction. In light of the presence of the sulfur impurities, the WGS can be implemented as a sour gas shift. WGS can provide good results by using a non-sulfided catalyst. Conditions can be employed which contribute to further enhanced CO-conversion in the reaction. The hydrocarbons or derivatives thereof obtainable from the method can further be refined and used for production of fuels or lubricants for combustion engines.Type: ApplicationFiled: July 2, 2012Publication date: January 3, 2013Applicant: Neste Oil OyjInventors: Isto EILOS, Jukka KOSKINEN, Marja TIITTA, Sami TOPPINEN, Heli VUORI
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Publication number: 20120202897Abstract: A method of purifying gas obtained by gasification of a biomass feedstock. The gas which contains carbon monoxide, carbon dioxide, hydrogen, hydrocarbons and mixtures thereof can be freed from impurities, such as hydrogen sulphide, hydrogen chloride, ammonia, carbonyl sulphide, hydrogen cyanide and mixtures thereof, by contacting the gas with an acidic aqueous wash solution of transition metal ions capable of binding to sulphide ions, by binding a significant portion of the hydrogen sulphide impurities contained in the gas into practically insoluble transition metal sulphide compounds to remove hydrogen sulphide impurities from the gas; and by separating the thus obtained purified gas from the aqueous solution. The purified gas is suitable for production of hydrocarbon compositions by, for example the Fischer-Tropsch process.Type: ApplicationFiled: February 8, 2012Publication date: August 9, 2012Applicant: Neste Oil OyjInventors: Kari I. KESKINEN, Jukka KOSKINEN, Juhani AITTAMAA, Marianne PETTERSSON
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Patent number: 8152793Abstract: The membrane shell of an implantable dosage system according to the invention is particularly suitable for subcutaneous applications to release an active agent with steady amounts during a longer period of time. The membrane shell (3) according to the invention comprises a first half (1) and a second half (2), which both halves comprise a continuous closure edge (8, 9), and are adapted to be connected to each other through a closable joint. The closure edges (8, 9) of the halves comprise at least one groove (10) and/or at least one protrusion (11) as continuous or discontinuous, and the membrane shell (3) is adapted to be closed so that at least one protrusion (11) and/or at least one groove (10) of the second half becomes opposed to at least one groove (10) and/or at least one protrusion (11) of the first half through a snap-fit joint.Type: GrantFiled: April 23, 2008Date of Patent: April 10, 2012Assignee: Bayer OyInventors: Antti Keinänen, Jukka Koskinen, Pentti Järvelä
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Patent number: 7935179Abstract: A method and apparatus for exhausting gas from a coating material. The coating material is fed in the bottom part area of a drum (3) rotating around an essentially vertical axis inside a vacuum tank (1), whereby the rotating motion of the drum causes the coating material to rise up the inner wall of the drum and to discharge from the upper edge of the drum as a thin film against the inner wall of a vacuum tank, wherefrom the coating material flows downwards. The coating material is arranged to rise up the wall of the drum stepwise, so that the coating material will form a thin veil-like film on at least two different step levels (10-12), whereupon the gas bubbles in the coating material will break and be discharged from the coating material.Type: GrantFiled: May 22, 2006Date of Patent: May 3, 2011Assignee: Metso Paper, Inc.Inventors: Heikki Vatanen, Timo Nurmiainen, Jukka Koskinen, Ilpo Honkanen
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Publication number: 20100062034Abstract: The membrane shell of an implantable dosage system according to the invention is particularly suitable for subcutaneous applications to release an active agent with steady amounts during a longer period of time. The membrane shell (3) according to the invention comprises a first half (1) and a second half (2), which both halves comprise a continuous closure edge (8, 9), and are adapted to be connected to each other through a closable joint. The closure edges (8, 9) of the halves comprise at least one groove (10) and/or at least one protrusion (11) as continuous or discontinuous, and the membrane shell (3) is adapted to be closed so that at least one protrusion (11) and/or at least one groove (10) of the second half becomes opposed to at least one groove (10) and/or at least one protrusion (11) of the first half through a snap-fit joint.Type: ApplicationFiled: April 23, 2008Publication date: March 11, 2010Inventors: Antti Keinänen, Jukka Koskinen, Pentti Järvelä
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Publication number: 20080166488Abstract: A method and apparatus for exhausting gas from a coating material. The coating material is fed in the bottom part area of a drum (3) rotating around an essentially vertical axis inside a vacuum tank (1), whereby the rotating motion of the drum causes the coating material to rise up the inner wall of the drum and to discharge from the upper edge of the drum as a thin film against the inner wall of a vacuum tank, wherefrom the coating material flows downwards. The coating material is arranged to rise up the wall of the drum stepwise, so that the coating material will form a thin veil-like film on at least two different step levels (10-12), whereupon the gas bubbles in the coating material will break and be discharged from the coating material.Type: ApplicationFiled: May 22, 2006Publication date: July 10, 2008Applicant: METSO PAPER, INC.Inventors: Heikki Vatanen, Timo Nurmiainen, Jukka Koskinen, Ilpo Honkanen
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Publication number: 20060000410Abstract: A multilayer curtain coater for coating a moving material web, such as a paper or board web, with coating material, in which an application device is arranged above a material web having an upper surface, the web being mounted for motion with respect to the curtain coater, and the web arranged so that a coating material feeds onto the surface of the web in a curtain-like flow. The curtain coater has a scraper with a scraper surface which engages the upper surface of the web to remove an air boundary layer thereon. The durability of the scraper surface is increased by constructing the scraper out of a hard wear resistant material or material which is surface-hardened or provided with a durability-enhancing coating layer.Type: ApplicationFiled: May 18, 2005Publication date: January 5, 2006Inventors: Jukka Koskinen, Timo Nurmlainen