Patents by Inventor Teuvo Maunula
Teuvo Maunula 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: 20220387981Abstract: A catalyst composition for selective catalytic reduction of NOx by ammonia or compounds, such as urea, generating ammonia under exhaust gas conditions. The composition includes a) a copper ion exchanged zeolite particles having a Si/Al2 molar ratio (SAR) of 15 or less and a copper content sufficiently high to perform the catalytic reduction, b) a nanocrystalline aluminium compound in an amount sufficient for stabilizing the zeolite, and c) a zirconium compound in an amount sufficient to improve hydrothermal durability of the catalyst composition.Type: ApplicationFiled: October 23, 2020Publication date: December 8, 2022Applicant: DINEX A/SInventors: Thomas WOLLF, Matthias GEIST, Teuvo MAUNULA
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Patent number: 10322403Abstract: A catalyst coating for use in a hydrolysis catalyst (H-catalyst) for the reduction of nitrogen oxides, a manufacturing method for such a coating, a catalyst structure and its use are described. The H-catalyst includes alkaline compounds, which are capable of adsorbing HNCO and/or nitrogen oxides and which include alkali and alkaline earth metals, lanthanum and/or yttrium and/or hafnium and/or prasedium and/or gallium, and/or zirconium for promoting reduction, such as for promoting the hydrolysis of urea and the formation of ammonia and/or the selective reduction of nitrogen oxides.Type: GrantFiled: February 14, 2013Date of Patent: June 18, 2019Assignee: DINEX ECOCAT OYInventor: Teuvo Maunula
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Patent number: 9765661Abstract: The invention relates to the coating of a particulate filter used in the treatment of exhaust or waste gases. In the manufacturing of the coating according to the invention, there is used a liquid-based sol, where the average particle size of the contained particles is below 100 nm, preferably below 50 nm.Type: GrantFiled: June 15, 2006Date of Patent: September 19, 2017Assignee: DINEX ECOCAT OYInventors: Teuvo Maunula, Marja Kärkkäinen, Pasi Juvonen, Pekka Matilainen
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Publication number: 20150017083Abstract: A catalyst coating for use in a hydrolysis catalyst (H-catalyst) for the reduction of nitrogen oxides, a manufacturing method for such a coating, a catalyst structure and its use are described. The H-catalyst includes alkaline compounds, which are capable of adsorbing HNCO and/or nitrogen oxides and which include alkali and alkaline earth metals, lanthanum and/or yttrium and/or hafnium and/or prasedium and/or gallium, and/or zirconium for promoting reduction, such as for promoting the hydrolysis of urea and the formation of ammonia and/or the selective reduction of nitrogen oxides.Type: ApplicationFiled: February 14, 2013Publication date: January 15, 2015Applicant: DINEX ECOCAT OYInventor: Teuvo Maunula
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Patent number: 8337762Abstract: The object of the invention is a porous sheet(s) for treating exhaust gases of combustion engines in open channels. According to the invention at least part of the porous sheet has a covering support having pores over 10 nm and coarse particles over 1.4 ?m.Type: GrantFiled: May 17, 2011Date of Patent: December 25, 2012Assignee: Ecocat OyInventors: Aulis Vakkilainen, Reijo Lylykangas, Ritva Heikkinen, Teuvo Maunula, Matti Harkonen, Ari Lievonen
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Patent number: 8337793Abstract: A method and equipment for removing ammonia from effluent, flue or waste fluids that include oxygen. The method includes at least the following stages: Part of the fluid (1) is conveyed to a decomposition/oxidation unit (2) and part of the fluid (1) is conveyed to a by-pass unit (3); part of the fluid (1) including ammonia is oxidized in the decomposition/oxidation unit (2) of ammonia; the fluid (1H) that was oxidized in the decomposition/oxidation unit (2) and the fluid (1) that was conveyed to the by-pass unit are mixed in a mixing unit (4) to form a fluid mixture (1S), and the fluid mixture (1S) is conveyed to a selective reduction unit (5).Type: GrantFiled: October 19, 2007Date of Patent: December 25, 2012Assignee: Ecocat OyInventors: Teuvo Maunula, Matti Härkönen
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Publication number: 20100266469Abstract: A method and equipment for removing ammonia from effluent, flue or waste fluids that include oxygen. The method includes at least the following stages: Part of the fluid (1) is conveyed to a decomposition/oxidation unit (2) and part of the fluid (1) is conveyed to a by-pass unit (3); part of the fluid (1) including ammonia is oxidized in the decomposition/oxidation unit (2) of ammonia; the fluid (1H) that was oxidized in the decomposition/oxidation unit (2) and the fluid (1) that was conveyed to the by-pass unit are mixed in a mixing unit (4) to form a fluid mixture (1S), and the fluid mixture (1S) is conveyed to a selective reduction unit (5).Type: ApplicationFiled: October 19, 2007Publication date: October 21, 2010Applicant: ECOCAT OYInventors: Teuvo Maunula, Matti Harkonen
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Publication number: 20100228061Abstract: The invention relates to a catalyst for the removal of detrimental halogenated and non-halogenated hydrocarbons in different effluent or process gases. The invention also relates to a method for the manufacture and use of such a catalyst. The catalyst of the invention includes a porous support material, on the surface of which there are one or several noble metals, V, and one or several 1. additives chosen from the group of Cr, Mn, Fe, Co and Ni.Type: ApplicationFiled: July 22, 2008Publication date: September 9, 2010Applicant: ECOCAT OYInventors: Matti Harkonen, Teuvo Maunula, Jukka Saartoala
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Publication number: 20090320456Abstract: The invention relates to an apparatus for treating diesel exhaust gases including a diesel particulate filter. The invention also relates to a method for manufacturing and using such an apparatus. A particulate filter (DFP) according to the invention has a coating, there is used a sol having the average particle size of the particles below 100 nm, preferably below 50 nm and that a particulate oxidation and that a particulate oxidation catalyst (POC) has been connected in front of the particulate filter in relation to the flow direction of the exhaust gas, which includes at least partially open channels for leading the exhaust gas.Type: ApplicationFiled: January 2, 2007Publication date: December 31, 2009Applicant: ECOCAT OYInventors: Keijo Torkkell, Toni Kinnunen, Teuvo Maunula, Pekka Matilainen
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Publication number: 20090199539Abstract: The invention relates to the coating of a particulate filter used in the treatment of exhaust or waste gases. In the manufacturing of the coating according to the invention, there is used a liquid-based sol, where the average particle size of the contained particles is below 100 nm, preferably below 50 nm.Type: ApplicationFiled: June 15, 2006Publication date: August 13, 2009Applicant: ECOCAT OYInventors: Teuvo Maunula, Marja Karkkaine, Pasi Juvonen, Pekka Matilainen
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Publication number: 20070009400Abstract: A porous sheet for treating exhaust gases of combustion engines in open channels is disclosed. At least part of the porous sheet has a covering support having pores over 10 nm and coarse particles over 1.4 ?m.Type: ApplicationFiled: April 19, 2004Publication date: January 11, 2007Inventors: Aulis Vakkilainen, Reijo Lylykangas, Ritva Heikkinen, Teuvo Maunula, Matti Harkonen, Ari Lievonen
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Patent number: 6818582Abstract: An adsorbent catalyst for reducing the amounts of nitrogen oxides, hydrocarbons and carbon monoxide contained in exhaust or combustion gases, which catalyst adsorbs nitrogen oxides, when the exhaust or combustion gases contain in excess of oxygen, and liberates and reduces the adsorbed nitrogen oxides, when the gases contain oxygen in stoichiometric amounts or less, which adsorbent catalyst include a porous support material the surface area of which is large and which contains at least the following: a first catalytic metal, which is preferably Pt, a first NOx adsorbent, which preferably contains at least one of the following metals: Ba and Sr, a second NOx adsorbent, which preferably contains at least one of the following metals: La and Y, and a redox NOx adsorbent, which preferably contains at least one of the following metals: Ce, Zr, Ti, Nb, Mn, Pr, Nd, Sm, Eu and G.Type: GrantFiled: April 10, 2001Date of Patent: November 16, 2004Assignee: Kemira Metalkat OyInventor: Teuvo Maunula
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Publication number: 20020054843Abstract: The invention is especially directed to a system for purifying exhaust gases of diesel or gasoline engines containing on average an excess of oxygen, this system including three operational units being an oxidation catalyst (3), a particle separator (4), and an NOx adsorption catalyst (5), this system reducing the amount of hydrocarbons, carbon monoxide, nitrogen oxides and particles present in exhaust gas. The invention is also directed to methods for purifying exhaust gases.Type: ApplicationFiled: July 3, 2001Publication date: May 9, 2002Inventor: Teuvo Maunula
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Publication number: 20020013226Abstract: The invention relates to an adsorbent catalyst for reducing the amounts of nitrogen oxides, hydrocarbons and carbon monoxide contained in exhaust or combustion gases, which catalyst adsorbs nitrogen oxides, when the exhaust or combustion gases contain in excess of oxygen, and liberates and reduces the adsorbed nitrogen oxides, when the gases contain oxygen in stoichiometric amounts or less, which adsorbent catalyst include a porous support material the surface area of which is large and which contains at least the following: a first catalytic metal, which is preferably Pt, a first NOx adsorbent, which preferably contains at least one of the following metals: Ba and Sr, a second NOx adsorbent, which preferably contains at least one of the following metals: La and Y, and a redox NOx adsorbent, which preferably contains at least one of the following metals: Ce, Zr, Ti, Nb, Mn, Pr, Nd, Sm, Eu and G.Type: ApplicationFiled: April 10, 2001Publication date: January 31, 2002Inventor: Teuvo Maunula
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Patent number: 5580533Abstract: The invention relates to a catalyst intended for purifying diesel exhaust gases, the catalyst comprising a honeycomb and a support which has been prepared by using titanium dioxide and an inorganic sol, and at least one catalytically active agent.Type: GrantFiled: October 24, 1994Date of Patent: December 3, 1996Assignee: Kemira OYInventors: Matti Kivioja, Sointu Ravola, Thomas Slotte, Teuvo Maunula, Matti H ark onen, Pirkko Virta
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Patent number: 5071634Abstract: The invention relates to a process for the production of hydrogen peroxide by the anthraquinone process. A reaction mixture into which there are fed hydrogen or a hydrogen-containing gas and a working solution, i.e. an anthraquinone derivative in an organic solvent, is circulated via a tubular static mixing zone (9) which is continuous or comprises several parts, in order to hydrogenate the anthraquinone derivative in the presence of a solid catalyst, and by removing hydrogenated working solution (13) and gas (11) from the circulating reaction mixture (8). According to the invention, the reaction mixture (14) is circulated (8) via a catalyst-coated static mixing zone (9), where it is simultaneously both mixed and catalyzed.Type: GrantFiled: January 24, 1990Date of Patent: December 10, 1991Assignee: Kemira OyInventors: Teuvo Maunula, Eva-Liisa Mustonen, Ilkka Turunen, Pirkko Virta