Patents by Inventor Thangaraj Selvam
Thangaraj Selvam 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: 11571682Abstract: A SCR catalyst composition comprises a SCR catalyst; and a binder comprising a porous inorganic material, wherein the porous inorganic material comprises a disordered arrangement of delaminated layers, has a disordered porous structure, and has a multimodal pore size distribution comprising at least a first modal maximum having a macroporous or mesoporous pore size and a second modal maximum having a microporous pore size. The SCR catalyst composition can be manufactured using the method comprising the steps of: (i) providing an inorganic material having a layered structure; (ii) contacting the material with a cationic surfactant to form a swollen material; (iii) agitating the swollen material to form an agitated material; and (iv) calcining the agitated material to recover a delaminated inorganic material, wherein an SCR catalyst is mixed with the inorganic material prior to step (iv).Type: GrantFiled: August 10, 2020Date of Patent: February 7, 2023Inventors: Jürgen Bauer, Ralf Dotzel, Jörg Werner Muench, Ralitsa Purova, Wilhelm Schwieger, Thangaraj Selvam, Ameen Shahid
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Patent number: 11179707Abstract: A composite material comprises a macroporous silicate-based material at least partially substituted with at least one microporous zeolite, wherein the microporous zeolite is functionalised with either copper, iron or both copper and iron, and wherein the composite material is in the form of particles. The composite material can be obtained using a method comprising the steps of: (i) providing a mixture comprising a silicate-containing scaffold having a macroporous structure, an aluminium source and an organic template; (ii) hydrothermally treating the mixture to form a microporous zeolite-containing structure substantially retaining the macroporous structure of the silicate-containing scaffold; (iii) incorporating copper, iron or both copper and iron into the zeolite. The silicate-containing scaffold can be a diatomaceous earth.Type: GrantFiled: May 18, 2020Date of Patent: November 23, 2021Assignee: Johnson Matthey Catalysts (Germany) GmbHInventors: Juergen Bauer, Ralf Dotzel, Joerg Werner Muench, Ralitsa Purova, Wilhelm Schwieger, Thangaraj Selvam, Ameen Shahid
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Publication number: 20210094025Abstract: A composite material comprises a macroporous silicate-based material at least partially substituted with at least one microporous zeolite, wherein the microporous zeolite is functionalised with either copper, iron or both copper and iron, and wherein the composite material is in the form of particles. The composite material can be obtained using a method comprising the steps of: (i) providing a mixture comprising a silicate-containing scaffold having a macroporous structure, an aluminium source and an organic template; (ii) hydrothermally treating the mixture to form a microporous zeolite-containing structure substantially retaining the macroporous structure of the silicate-containing scaffold; (iii) incorporating copper, iron or both copper and iron into the zeolite. The silicate-containing scaffold can be a diatomaceous earth.Type: ApplicationFiled: May 18, 2020Publication date: April 1, 2021Inventors: Juergen Bauer, Ralf Dotzel, Joerg Werner Muench, Ralitsa Purova, Wilhelm Schwieger, Thangaraj Selvam, Ameen Shahid
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Publication number: 20210008524Abstract: A SCR catalyst composition comprises a SCR catalyst; and a binder comprising a porous inorganic material, wherein the porous inorganic material comprises a disordered arrangement of delaminated layers, has a disordered porous structure, and has a multimodal pore size distribution comprising at least a first modal maximum having a macroporous or mesoporous pore size and a second modal maximum having a microporous pore size. The SCR catalyst composition can be manufactured using the method comprising the steps of: (i) providing an inorganic material having a layered structure; (ii) contacting the material with a cationic surfactant to form a swollen material; (iii) agitating the swollen material to form an agitated material; and (iv) calcining the agitated material to recover a delaminated inorganic material, wherein an SCR catalyst is mixed with the inorganic material prior to step (iv).Type: ApplicationFiled: August 10, 2020Publication date: January 14, 2021Inventors: Jürgen BAUER, Ralf DOTZEL, Joerg Werner MUENCH, Ralitsa PUROVA, Wilhelm SCHWIEGER, Thangaraj SELVAM, Ameen SHAHID
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Patent number: 10828626Abstract: A composite material comprises a macroporous silicate-based material at least partially substituted with at least one microporous zeolite, wherein the microporous zeolite is functionalised with either copper, iron or both copper and iron, and wherein the composite material is in the form of particles. The composite material can be obtained using a method comprising the steps of: (i) providing a mixture comprising a silicate-containing scaffold having a macroporous structure, an aluminium source and an organic template; (ii) hydrothermally treating the mixture to form a microporous zeolite-containing structure substantially retaining the macroporous structure of the silicate-containing scaffold; (iii) incorporating copper, iron or both copper and iron into the zeolite. The silicate-containing scaffold can be a diatomaceous earth.Type: GrantFiled: March 29, 2018Date of Patent: November 10, 2020Assignee: Johnson Matthey Catalysts (Germany) GmbHInventors: Juergen Bauer, Ralf Dotzel, Joerg Werner Muench, Ralitsa Purova, Wilhelm Schwieger, Thangaraj Selvam, Ameen Shahid
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Publication number: 20200038850Abstract: A composite material comprises a macroporous silicate-based material at least partially substituted with at least one microporous zeolite, wherein the microporous zeolite is functionalised with either copper, iron or both copper and iron, and wherein the composite material is in the form of particles. The composite material can be obtained using a method comprising the steps of: (i) providing a mixture comprising a silicate-containing scaffold having a macroporous structure, an aluminium source and an organic template; (ii) hydrothermally treating the mixture to form a microporous zeolite-containing structure substantially retaining the macroporous structure of the silicate-containing scaffold; (iii) incorporating copper, iron or both copper and iron into the zeolite. The cate-containing scaffold can be a diatomaceous earth.Type: ApplicationFiled: March 29, 2018Publication date: February 6, 2020Inventors: Juergen BAUER, Ralf DOTZEL, Joerg Werner MUENCH, Ralitsa PUROVA, Wilhelm SCHWIEGER, Thangaraj SELVAM, Ameen SHAHID
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Publication number: 20180280937Abstract: A SCR catalyst composition comprises a SCR catalyst; and a binder comprising a porous inorganic material, wherein the porous inorganic material comprises a disordered arrangement of delaminated layers, has a disordered porous structure, and has a multimodal pore size distribution comprising at least a first modal maximum having a macroporous or mesoporous pore size and a second modal maximum having a microporous pore size. The SCR catalyst composition can be manufactured using the method comprising the steps of: (i) providing an inorganic material having a layered structure; (ii) contacting the material with a cationic surfactant to form a swollen material; (iii) agitating the swollen material to form an agitated material; and (iv) calcining the agitated material to recover a delaminated inorganic material, wherein an SCR catalyst is mixed with the inorganic material prior to step (iv).Type: ApplicationFiled: March 28, 2018Publication date: October 4, 2018Inventors: Juergen BAUER, Ralf DOTZEL, Joerg Werner MUENCH, Ralitsa PUROVA, Wilhelm SCHWIEGER, Thangaraj SELVAM, Ameen SHAHID
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Publication number: 20140256859Abstract: The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.Type: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
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Patent number: 8822574Abstract: The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.Type: GrantFiled: April 30, 2010Date of Patent: September 2, 2014Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
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Publication number: 20120108707Abstract: The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.Type: ApplicationFiled: April 30, 2010Publication date: May 3, 2012Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber