Patents by Inventor Kenichiro Kondo
Kenichiro Kondo 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: 9428701Abstract: A fluidized-bed gasification method using fluidized-bed combustion furnace; a separator for separation into bed material and an exhaust gas; a fluidized-bed gasification furnace into which the bed material is introduced through a downcomer and into which raw material is introduced; a circulation passage for circulating char and the bed material to the combustion furnace; a dispersion section; extending along a width of a bed-material-introduction-side wall of the gasification furnace to receive the bed material from the downcomer; a fluidizing-gas introduction system for blowing fluidizing gas into the dispersion section to fluidize the bed material in the dispersion section; and a supply section for supplying the bed material in the dispersion section to the fluidized-bed gasification furnace substantially evenly throughout the width on the bed-material-introduction side, is provided.Type: GrantFiled: August 28, 2014Date of Patent: August 30, 2016Assignee: IHI CORPORATIONInventors: Yoshiaki Matsuzawa, Toshiyuki Suda, Kenichiro Kondo
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Patent number: 8974554Abstract: Provided are a fluidized-bed combustion furnace 1, a separator 8 for separation into bed material 11 and an exhaust gas, a fluidized-bed gasification furnace 40 into which the bed material 11 is introduced through a downcomer 46 and into which raw material is introduced, a circulation passage for circulating char and the bed material 11 to the combustion furnace 1, a dispersion section 43 extending along a width of a bed-material-introduction-side wall 41 of the gasification furnace 40 to receive the bed material 11 from the downcomer, fluidizing-gas introduction means 47 for blowing fluidizing gas into the dispersion section 43 to fluidize the bed material 11 in the section 43, and a supply section 48 for supplying the bed material 11 in the dispersion section 43 to the fluidized-bed gasification furnace 40 substantially evenly throughout the width on the bed-material-introduction side.Type: GrantFiled: June 12, 2009Date of Patent: March 10, 2015Assignee: IHI CorporationInventors: Yoshiaki Matsuzawa, Toshiyuki Suda, Kenichiro Kondo
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Publication number: 20140366447Abstract: Provided are a fluidized-bed combustion furnace 1, a separator 8 for separation into bed material 11 and an exhaust gas, a fluidized-bed gasification furnace 40 into which the bed material 11 is introduced through a downcomer 46 and into which raw material is introduced, a circulation passage for circulating char and the bed material 11 to the combustion furnace 1, a dispersion section 43 extending along a width of a bed-material-introduction-side wall 41 of the gasification furnace 40 to receive the bed material 11 from the downcomer, fluidizing-gas introduction means 47 for blowing fluidizing gas into the dispersion section 43 to fluidize the bed material 11 in the section 43, and a supply section 48 for supplying the bed material 11 in the dispersion section 43 to the fluidized-bed gasification furnace 40 substantially evenly throughout the width on the bed-material-introduction side.Type: ApplicationFiled: August 28, 2014Publication date: December 18, 2014Applicant: IHI CorporationInventors: Yoshiaki MATSUZAWA, Toshiyuki Suda, Kenichiro Kondo
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Patent number: 8500443Abstract: A fluidized bed gasification furnace has a fluidized bed formed and a freeboard section F above a bed material so as to produce a produced gas by a reaction of raw material with a gasifying agent and take out the produced gas through the freeboard section. Upon shutdown of the furnace, inert gas is fed from below to the furnace for purging of gas in the fluidized bed with inert gas while steam is supplied to a freeboard section above the fluidized bed to purge a gas in the freeboard section with steam.Type: GrantFiled: March 11, 2009Date of Patent: August 6, 2013Assignee: IHI CorporationInventors: Tomoyuki Katagiri, Hisanori Nukumi, Kenichiro Kondo
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Patent number: 8480767Abstract: A fluidized bed gasification system is provided in which bed material and raw material are passed throughout a fluidized bed gasification furnace so that raw material is gasified with higher gasification efficiency to improve gasification productivity. A heat-resistant partition 32 for regulation of bed material flow is arranged between positions I and II of a downcomer 12 of a separator 8 and of a supply flow passage 25 in plane of a fluidized bed gasification furnace 2. As a result, the bed material introduced via the downcomer 12 is directed to a supply flow passage 25 through a circuitous flow passage 33 throughout the fluidized bed gasification furnace 2 defined by the heat-resistant partition 32.Type: GrantFiled: March 14, 2007Date of Patent: July 9, 2013Assignee: IHI CorporationInventors: Yoshiaki Matsuzawa, Toshiyuki Suda, Hironobu Fujiyoshi, Makoto Takafuji, Kenichiro Kondo
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Patent number: 8444723Abstract: Provided is a fluidized bed gasification method wherein an amount of solid particles to be circulated in a fluidized bed combustion furnace is controlled to enhance gasification efficiency in the furnace. It is the fluidized bed gasification method with fluidized bed combustion and gasification furnaces 30 and 43, char and solid particles produced upon gasification of raw material 51 in the gasification furnace 43 being circulated to the combustion furnace 30. A circulated amount of the solid particles in the combustion furnace is controlled by varying the same in a range of 6 to 30 with respect to an air flow rate, thereby facilitating heat transmission to the raw material 51.Type: GrantFiled: March 1, 2007Date of Patent: May 21, 2013Assignee: IHI CorporationInventors: Toshiro Fujimori, Hidehisa Tani, Toshiyuki Suda, Yoshiaki Matsuzawa, Kenichiro Kondo
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Publication number: 20110120007Abstract: Provided are a fluidized-bed combustion furnace 1, a separator 8 for separation into bed material 11 and an exhaust gas, a fluidized-bed gasification furnace 40 into which the bed material 11 is introduced through a downcomer 46 and into which raw material is introduced, a circulation passage for circulating char and the bed material 11 to the combustion furnace 1, a dispersion section 43 extending along a width of a bed-material-introduction-side wall 41 of the gasification furnace 40 to receive the bed material 11 from the downcomer, fluidizing-gas introduction means 47 for blowing fluidizing gas into the dispersion section 43 to fluidize the bed material 11 in the section 43, and a supply section 48 for supplying the bed material 11 in the dispersion section 43 to the fluidized-bed gasification furnace 40 substantially evenly throughout the width on the bed-material-introduction side.Type: ApplicationFiled: June 12, 2009Publication date: May 26, 2011Applicant: IHI CorporationInventors: Yoshiaki Matsuzawa, Toshiyuki Suda, Kenichiro Kondo
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Publication number: 20110020145Abstract: A fluidized bed gasification furnace has a fluidized bed formed and a freeboard section F above a bed material so as to produce a produced gas by a reaction of raw material with a gasifying agent and take out the produced gas through the freeboard section. Upon shutdown of the furnace, inert gas is fed from below to the furnace for purging of gas in the fluidized bed with inert gas while steam is supplied to a freeboard section above the fluidized bed to purge a gas in the freeboard section with steam.Type: ApplicationFiled: March 11, 2009Publication date: January 27, 2011Applicant: IHI CorporationInventors: Tomoyuki Katagiri, Hisanori Nukumi, Kenichiro Kondo
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Publication number: 20100101146Abstract: Provided is a fluidized bed gasification method wherein an amount of solid particles to be circulated in a fluidized bed combustion furnace is controlled to enhance gasification efficiency in the furnace. It is the fluidized bed gasification method with fluidized bed combustion and gasification furnaces 30 and 43, char and solid particles produced upon gasification of raw material 51 in the gasification furnace 43 being circulated to the combustion furnace 30. A circulated amount of the solid particles in the combustion furnace is controlled by varying the same in a range of 6 to 30 with respect to an air flow rate, thereby facilitating heat transmission to the raw material 51.Type: ApplicationFiled: March 1, 2007Publication date: April 29, 2010Applicant: IHI CorporationInventors: Toshiro Fujimori, Hidehisa Tani, Toshiyuki Suda, Yoshiaki Matsuzawa, Kenichiro Kondo
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Publication number: 20100043683Abstract: A fluidized bed gasification system is provided in which bed material and raw material are passed throughout a fluidized bed gasification furnace so that raw material is gasified with higher gasification efficiency to improve gasification productivity. A heat-resistant partition 32 for regulation of bed material flow is arranged between positions I and II of a downcomer 12 of a separator 8 and of a supply flow passage 25 in plane of a fluidized bed gasification furnace 2. As a result, the bed material introduced via the downcomer 12 is directed to a supply flow passage 25 through a circuitous flow passage 33 throughout the fluidized bed gasification furnace 2 defined by the heat-resistant partition 32.Type: ApplicationFiled: March 14, 2007Publication date: February 25, 2010Applicant: IHI CORPORATIONInventors: Yoshiaki Matsuzawa, Toshiyuki Suda, Hironobu Fujiyoshi, Makoto Takafuji, Kenichiro Kondo