Patents by Inventor Alberto Cremona
Alberto Cremona 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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Patent number: 11820653Abstract: A system suitable for oxidizing ammonia with oxygen in the presence of catalysts is described. The system includes a reactor equipped with at least one supply line for a reactant gas mixture and at least one discharge line for a process gas; a catalyst comprising at least one transition metal oxide that is not an oxide of a platinum metal; and a device for adjusting a molar ratio of oxygen to ammonia of less than or equal to 1.75 mol/mol in the reactant gas mixture by mixing an oxygen-containing gas stream having an O2 content of <20% by volume with a chosen amount of ammonia. The oxygen-containing gas stream is produced by a device for: diluting an air stream with a gas stream comprising less than 20% by volume oxygen; or depleting oxygen from an oxygen-containing gas mixture, preferably from air; or by a combination thereof.Type: GrantFiled: August 7, 2019Date of Patent: November 21, 2023Assignee: Thyssenkrupp Industrial Solutions AGInventors: Meinhard Schwefer, Rolf Siefert, Klaus Ruthardt, Alberto Cremona, Edoardo Vogna
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Publication number: 20190359486Abstract: A system suitable for oxidizing ammonia with oxygen in the presence of catalysts is described. The system includes a reactor equipped with at least one supply line for a reactant gas mixture and at least one discharge line for a process gas; a catalyst comprising at least one transition metal oxide that is not an oxide of a platinum metal; and a device for adjusting a molar ratio of oxygen to ammonia of less than or equal to 1.75 mol/mol in the reactant gas mixture by mixing an oxygen-containing gas stream having an O2 content of <20% by volume with a chosen amount of ammonia. The oxygen-containing gas stream is produced by a device for: diluting an air stream with a gas stream comprising less than 20% by volume oxygen; or depleting oxygen from an oxygen-containing gas mixture, preferably from air; or by a combination thereof.Type: ApplicationFiled: August 7, 2019Publication date: November 28, 2019Inventors: MEINHARD SCHWEFER, ROLF SIEFERT, KLAUS RUTHARDT, ALBERTO CREMONA, EDOARDO VOGNA
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Patent number: 10414654Abstract: A system suitable for oxidizing ammonia with oxygen in the presence of catalysts is described. The system includes a reactor equipped with at least one supply line for a reactant gas mixture and at least one discharge line for a process gas; a catalyst comprising at least one transition metal oxide that is not an oxide of a platinum metal; and a device for adjusting a molar ratio of oxygen to ammonia of less than or equal to 1.75 mol/mol in the reactant gas mixture by mixing an oxygen-containing gas stream having an O2 content of <20% by volume with a chosen amount of ammonia. The oxygen-containing gas stream is produced by a device for: diluting an air stream with a gas stream comprising less than 20% by volume oxygen; or depleting oxygen from an oxygen-containing gas mixture, preferably from air; or by a combination thereof.Type: GrantFiled: March 13, 2014Date of Patent: September 17, 2019Assignee: THYSSENKRUPP INDUSTRIAL SOLUTIONS AGInventors: Meinhard Schwefer, Rolf Siefert, Klaus Ruthardt, Alberto Cremona, Edoardo Vogna
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Patent number: 10125020Abstract: Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm.Type: GrantFiled: February 19, 2013Date of Patent: November 13, 2018Assignee: SUED-CHEMIE CATALYSTS ITALIA S.RL.Inventors: Marvin Estenfelder, Alberto Cremona
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Patent number: 10092895Abstract: A process for removing nitrogen protoxide from gas mixtures which 5 contain it, comprising contacting with a catalyst which contains mixed oxides of copper, manganese and rare earth metals in an amount expressed as percentage by weight of CuO, MnO and rare earth metal oxide in the lowest state of valency of 20-45% CuO, 50-60% MnO, and 5-20% rare earth metal oxide.Type: GrantFiled: December 6, 2016Date of Patent: October 9, 2018Assignee: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Alberto Cremona, Edoardo Vogna
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Publication number: 20170113208Abstract: A process for removing nitrogen protoxide from gas mixtures which 5 contain it, comprising contacting with a catalyst which contains mixed oxides of copper, manganese and rare earth metals in an amount expressed as percentage by weight of CuO, MnO and rare earth metal oxide in the lowest state of valency of 20-45% CuO, 50-60% MnO, and 5-20% rare earth metal oxide.Type: ApplicationFiled: December 6, 2016Publication date: April 27, 2017Inventors: Alberto Cremona, Edoardo Vogna
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Publication number: 20160039674Abstract: A system suitable for oxidizing ammonia with oxygen in the presence of catalysts is described. The system includes a reactor equipped with at least one supply line for a reactant gas mixture and at least one discharge line for a process gas; a catalyst comprising at least one transition metal oxide that is not an oxide of a platinum metal; and a device for adjusting a molar ratio of oxygen to ammonia of less than or equal to 1.75 mol/mol in the reactant gas mixture by mixing an oxygen-containing gas stream having an O2 content of <20% by volume with a chosen amount of ammonia. The oxygen-containing gas stream is produced by a device for: diluting an air stream with a gas stream comprising less than 20% by volume oxygen; or depleting oxygen from an oxygen-containing gas mixture, preferably from air; or by a combination thereof.Type: ApplicationFiled: March 13, 2014Publication date: February 11, 2016Inventors: MEINHARD SCHWEFER, ROLF SIEFERT, KLAUS RUTHARDT, ALBERTO CREMONA, EDOARDO VOGNA
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Patent number: 8815767Abstract: Mixed oxides catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds (VOC), in the decomposition of nitrogen protoxide to nitrogen and oxygen and the combustion of CO, H2 and CH4 off gases in fuel cells, comprising oxides of manganese, copper and La2O3 and/or Nd2O3, having a percentage composition by weight expressed as MnO, CuO, La2O3 and/or Nd2O3 respectively of 35-56%, 19-31% and 20-37%. The oxides are supported on inert porous inorganic oxides, preferably alumina.Type: GrantFiled: November 4, 2009Date of Patent: August 26, 2014Assignee: Sued-Chemie Catalysts Italia S.R.L.Inventors: Alberto Cremona, Marvin Estenfelder, Edoardo Vogna
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Patent number: 8809224Abstract: A catalyst for removing nitrogen protoxide from gas mixtures which contain it, comprising mixed oxides of cobalt, manganese and rare earth metals having composition expressed as percentage by weight of CoO, MnO and transition metal oxide in the lowest state of valence as follows: MnO 38-56%, CoO 22-30%, rare earth metal oxide 22-32%.Type: GrantFiled: September 6, 2011Date of Patent: August 19, 2014Assignee: Sud-Chemie Catalysts Italia S.R.L.Inventors: Alberto Cremona, Marvin Estenfelder, Edoardo Vogna
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Publication number: 20130172178Abstract: A catalyst for removing nitrogen protoxide from gas mixtures which contain it, comprising mixed oxides of cobalt, manganese and rare earth metals having composition expressed as percentage by weight of CoO, MnO and transition metal oxide in the lowest state of valence as follows: MnO 38-56%, CoO 22-30%, rare earth metal oxide 22-32%.Type: ApplicationFiled: September 6, 2011Publication date: July 4, 2013Applicant: SUD-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Alberto Cremona, Marvin Estenfelder, Edoardo Vogna
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Publication number: 20130164494Abstract: Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm.Type: ApplicationFiled: February 19, 2013Publication date: June 27, 2013Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Marvin ESTENFELDER, Alberto CREMONA
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Patent number: 8435917Abstract: Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm.Type: GrantFiled: December 17, 2009Date of Patent: May 7, 2013Assignee: Sued-Chemie Catalysts Italia S.R.L.Inventors: Marvin Estenfelder, Alberto Cremona
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Publication number: 20110207003Abstract: The invention relates to a method for removing CO, H2 and/or CH4 from the anode waste gas of a fuel cell using mixed oxide catalysts comprising Cu, Mn and optionally at least one rare earth metal and to the use of mixed oxide catalysts comprising Cu, Mn, and optionally at least one rare earth metal for removing CO, H2 and/or CH4 from the anode waste gas of a fuel cell, and to a fuel cell arrangement.Type: ApplicationFiled: July 30, 2008Publication date: August 25, 2011Applicant: SUD-CHEMIE AGInventors: Hans-Georg Anfang, Alberto Cremona, Sandra Reheis
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Publication number: 20100158784Abstract: Ammonia oxidation catalyst units comprising a pair of honeycomb-type blocks having interplaced between them a layer of a gas permeable material performing the function of radially mixing the gas flow, said blocks comprising an ammonia oxidation catalysts, and having height of less than 15 cm and the interplaced layer height of 3 to 0.5 cm.Type: ApplicationFiled: December 17, 2009Publication date: June 24, 2010Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Marvin ESTENFELDER, Alberto CREMONA
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Publication number: 20100111795Abstract: Mixed oxides catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds (VOC), in the decomposition of nitrogen protoxide to nitrogen and oxygen and the combustion of CO, H2 and CH4 off gases in fuel cells, comprising oxides of manganese, copper and La2O3 and/or Nd2O3, having a percentage composition by weight expressed as MnO, CuO, La2O3 and/or Nd2O3 respectively of 35-56%, 19-31% and 20-37%. The oxides are supported on inert porous inorganic oxides, preferably alumina.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Applicant: SUED-CHEMIE CATALYSTS ITALIA S.R.L.Inventors: Alberto CREMONA, Marvin ESTENFELDER, Edoardo VOGNA
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Publication number: 20100074819Abstract: A process for removing nitrogen protoxide from gas mixtures which contain it, comprising contacting with a catalyst which contains mixed oxides of copper, manganese and rare earth metals in an amount expressed as percentage by weight of CuO, MnO and rare earth metal oxide in the lowest state of valency of 20-45% CuO, 50-60% MnO, and 5-20% rare earth metal oxide.Type: ApplicationFiled: January 23, 2008Publication date: March 25, 2010Inventors: Alberto Cremona, Edoardo Vogna
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Patent number: 6833125Abstract: Oxidation catalysts for used in the full oxidation to CO2 and H2O of volatile organic compounds, such as hydrocarbons, comprising mixed oxides of copper, manganese and one or more rare-earth metals, wherein the metals can assume multiple valency states, having a percentage composition by weight, expressed as CuO, MnO and rare-earth oxides, in which the metal has the minimum value of 8-50%, 10-75% and 2-15%, respectively. The oxides are supported on inert porous inorganic oxides.Type: GrantFiled: December 8, 2003Date of Patent: December 21, 2004Assignee: SUD Chemie MT. S.r.l.Inventors: Alberto Cremona, Carlo Rubini, Edoardo Vogna
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Publication number: 20040121904Abstract: Oxidation catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds such as hydrocarbons comprising mixed oxides of copper, manganese and one or more rare-earth metals, wherein the metals can assume multiple valency states, having a percentage composition by weight, expressed as CuO, MnO and rare-earth oxides, in which the metal has the minimum value of 8-50%, 10-75% and 2-15%. The oxides are supported on inert porous inorganic oxides.Type: ApplicationFiled: December 8, 2003Publication date: June 24, 2004Applicant: SUD CHEMIE MT. S.R.L.Inventors: Alberto Cremona, Carlo Rubini, Edoardo Vogna
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Patent number: 6683021Abstract: Oxidation catalysts useful in the oxidation to CO2 and H2O of volatile organic compounds such as hydrocarbons comprising mixed oxides of copper, manganese and one or more rare-earth metals, wherein the metals can assume multiple valency states, having a percentage composition by weight, expressed as CuO, MnO and rare-earth oxides, in which the metal has the minimum value of 8-50%, 10-75% and 2-15%. The oxides are supported on inert porous inorganic oxides.Type: GrantFiled: October 1, 2001Date of Patent: January 27, 2004Assignee: SUD Chemie MT. S.R.L.Inventors: Alberto Cremona, Carlo Rubini, Edoardo Vogna
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Publication number: 20020064492Abstract: Oxidation catalysts usable in particular in the full oxidation to CO2 and H2O of volatile organic compounds such as hydrocarbons comprising mixed oxides of copper, manganese and one or more rare-earth metals, wherein the metals can assume multiple valency states, having a percentage composition by weight, expressed as CuO, MnO and rare-earth oxides, in which the metal has the minimum value of 8-50%, 10-75% and 2-15%. The oxides are supported on inert porous inorganic oxides.Type: ApplicationFiled: October 1, 2001Publication date: May 30, 2002Applicant: SUD CHEMIE MT S.R.L.Inventors: Alberto Cremona, Carlo Rubini, Edoardo Vogna