Patents by Inventor Takashi Nojo
Takashi Nojo 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: 7316737Abstract: An amine recovery apparatus includes a carbon dioxide absorption section and plural water washing sections. The carbon dioxide absorption section brings the exhaust gas into vapor-liquid contact with an absorbing solution containing an amine compound and produces decarbonated exhaust gas. The water washing sections bring the decarbonated exhaust gas into vapor-liquid contact with washing water and sequentially recover the amine compound accompanying the decarbonated exhaust gas, while the decarbonated exhaust gas passes through the water washing sections in sequence from inlet portions to outlet portions thereof, respectively. The water washing sections have plural liquid reservoirs provided at the inlet portions of the water washing sections, respectively, and the liquid reservoirs reserve the washing water which is transported to the outlet portions of the water washing sections and supplied to the water washing sections, respectively.Type: GrantFiled: November 5, 2003Date of Patent: January 8, 2008Assignees: The Kansai Electric Power Co., Inc., Mitsubishi Heavy Industries, Ltd.Inventors: Tomio Mimura, Takashi Nojo, Kazuo Ishida, Hiroshi Nakashoji, Hiroshi Tanaka, Takuya Hirata
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Publication number: 20070039182Abstract: The gas-liquid contact plate is constructed so that a plurality of straight rows are provided; irregularities are formed over both surfaces of the plate at equal intervals in the row; the adjacent rows have repeated irregularities opposite to each other; and in a peak or valley portion of the irregularities, there is formed an opening connecting the surface to the back surface between the adjacent rows. There is provided a gas-liquid contact plate that has high wettability, being capable of improving the gas-liquid contact efficiency, and is light in weight and advantageous in terms of manufacturing cost.Type: ApplicationFiled: October 26, 2006Publication date: February 22, 2007Applicants: The Kansai Electric Power Co., Inc., MITSUBISHI HEAVY INDUSTRIES LTD.Inventors: Tomio Mimura, Takashi Nojo, Naoyuki Yoshizumi, Hiroshi Ohira, Ryuji Yoshiyama, Kenji Iwasaki
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Publication number: 20040228777Abstract: The gas-liquid contact plate is constructed so that a plurality of straight rows are provided; irregularities are formed over both surfaces of the plate at equal intervals in the row; the adjacent rows have repeated irregularities opposite to each other; and in a peak or valley portion of the irregularities, there is formed an opening connecting the surface to the back surface between the adjacent rows. There is provided a gas-liquid contact plate that has high wettability, being capable of improving the gas-liquid contact efficiency, and is light in weight and advantageous in terms of manufacturing cost.Type: ApplicationFiled: January 15, 2004Publication date: November 18, 2004Applicants: The Kansai Electric Power Co., Inc., MITSUBISHI HEAVY INDUSTRIES LTD.Inventors: Tomio Mimura, Takashi Nojo, Naoyuki Yoshizumi, Hiroshi Ohira, Ryuji Yoshiyama, Kenji Iwasaki
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Patent number: 6784320Abstract: In a decarbonation process for removing carbon dioxide from a carbon dioxide-containing gas with the use of an amine compound-containing absorbing solution, an amine compound accompanying a decarbonated exhaust gas is efficiently recovered in the following manner: A water washing section is constituted in two stages, a first-stage water washing section 64 and a second-stage water washing section 65. In these water washing sections, recovery of the amine compound accompanying the decarbonated exhaust gas is performed sequentially. Regeneration tower refluxed water is supplied as washing water to the second-stage water washing section 65. Washing water is withdrawn from the second-stage water washing section 65 and supplied to the first-stage water washing section 64. Demisters 83, 84 and 85 are provided at outlets of a carbon dioxide absorption section 73, the first-stage water washing section 64 and the second-stage water washing section 65.Type: GrantFiled: August 13, 2002Date of Patent: August 31, 2004Assignees: The Kansai Electric Power Co., Inc., Mitsubishi Heavy Industries, Ltd.Inventors: Tomio Mimura, Takashi Nojo, Kazuo Ishida, Hiroshi Nakashoji, Hiroshi Tanaka, Takuya Hirata
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Publication number: 20040092774Abstract: In a decarbonation process for removing carbon dioxide from a carbon dioxide-containing gas with the use of an amine compound-containing absorbing solution, an amine compound accompanying a decarbonated exhaust gas is efficiently recovered in the following manner: A water washing section is constituted in two stages, a first-stage water washing section 64 and a second-stage water washing section 65. In these water washing sections, recovery of the amine compound accompanying the decarbonated exhaust gas is performed sequentially. Regeneration tower refluxed water is supplied as washing water to the second-stage water washing section 65. Washing water is withdrawn from the second-stage water washing section 65 and supplied to the first-stage water washing section 64. Demisters 83, 84 and 85 are provided at outlets of a carbon dioxide absorption section 73, the first-stage water washing section 64 and the second-stage water washing section 65.Type: ApplicationFiled: November 5, 2003Publication date: May 13, 2004Applicants: The Kansai Electric Power Co., Inc., MITSUBISHI HEAVY INDUSTRIES LTD.Inventors: Tomio Mimura, Takashi Nojo, Kazuo Ishida, Hiroshi Nakashoji, Hiroshi Tanaka, Takuya Hirata
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Publication number: 20030045756Abstract: In a decarbonation process for removing carbon dioxide from a carbon dioxide-containing gas with the use of an amine compound-containing absorbing solution, an amine compound accompanying a decarbonated exhaust gas is efficiently recovered in the following manner: A water washing section is constituted in two stages, a first-stage water washing section 64 and a second-stage water washing section 65. In these water washing sections, recovery of the amine compound accompanying the decarbonated exhaust gas is performed sequentially. Regeneration tower refluxed water is supplied as washing water to the second-stage water washing section 65. Washing water is withdrawn from the second-stage water washing section 65 and supplied to the first-stage water washing section 64. Demisters 83, 84 and 85 are provided at outlets of a carbon dioxide absorption section 73, the first-stage water washing section 64 and the second-stage water washing section 65.Type: ApplicationFiled: August 13, 2002Publication date: March 6, 2003Applicant: The Kansai Electric Power Co., Osaka-Shi, Japan Mitsubishi Heavy Industries, LTD., Tokyo, JapanInventors: Tomio Mimura, Takashi Nojo, Kazuo Ishida, Hiroshi Nakashoji, Hiroshi Tanaka, Takuya Hirata
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Publication number: 20020178925Abstract: The gas-liquid contact plate is constructed so that a plurality of straight rows are provided; irregularities are formed over both surfaces of the plate at equal intervals in the row; the adjacent rows have repeated irregularities opposite to each other; and in a peak or valley portion of the irregularities, there is formed an opening connecting the surface to the back surface between the adjacent rows. There is provided a gas-liquid contact plate that has high wettability, being capable of improving the gas-liquid contact efficiency, and is light in weight and advantageous in terms of manufacturing cost.Type: ApplicationFiled: January 2, 2002Publication date: December 5, 2002Applicant: The Kansai Electric Power Co., Inc.Inventors: Tomio Mimura, Takashi Nojo, Naoyuki Yoshizumi, Hiroshi Ohira, Ryuji Yoshiyama, Kenji Iwasaki