Patents by Inventor Hidehisa Tani

Hidehisa Tani 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).

  • Patent number: 8685122
    Abstract: Provided is a fuel gasification equipment capable of sufficiently contacting particulates of a solid fuel with a bed material without scattering and reliably completing pyrolysis of the solid fuel to achieve improvement in cold gas efficiency and in C and H conversion rates and reforming of tar in a gasification gas. A fuel supply pipe 14 is connected to a side surface of a gasification furnace 2 at a position lower than an upper surface of a fluidized bed 1 for supplying the solid fuel into the fluidized bed 1. Confluence promoting means 15 is provided to allow the solid fuel supplied from the fuel supply pipe 14 into the fluidized bed 1 to join a flow of the bed material supplied from the downcomer 7 to an inner bottom of the fluidized bed 1.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: April 1, 2014
    Assignee: IHI Corporation
    Inventors: Takahiro Murakami, Satoko Aoki, Toshiyuki Suda, Hidehisa Tani
  • Patent number: 8444723
    Abstract: 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: Grant
    Filed: March 1, 2007
    Date of Patent: May 21, 2013
    Assignee: IHI Corporation
    Inventors: Toshiro Fujimori, Hidehisa Tani, Toshiyuki Suda, Yoshiaki Matsuzawa, Kenichiro Kondo
  • Publication number: 20110142721
    Abstract: Provided is a fuel gasification equipment capable of effectively utilizing a CO2 gas finally separated from a product or combustible gas such as H2 and CO for supply of a solid fuel to a gasification furnace, enabling stable supply of the solid fuel to the gasification furnace. The equipment has CO2 gas separation/circulation means for separating CO2 gas from the gasification gas produced in the gasification furnace 2 and introducing the separated CO2 gas to a supply system supplying the solid fuel to the gasification furnace 2.
    Type: Application
    Filed: August 20, 2008
    Publication date: June 16, 2011
    Applicant: IHI Corporation
    Inventors: Takahiro Murakami, Satoko Aoki, Toshiyuki Suda, Hidehisa Tani
  • Publication number: 20110131881
    Abstract: Provided is a fuel gasification equipment capable of sufficiently contacting particulates of a solid fuel with a bed material without scattering and reliably completing pyrolysis of the solid fuel to achieve improvement in cold gas efficiency and in C and H conversion rates and reforming of tar in a gasification gas. A fuel supply pipe 14 is connected to a side surface of a gasification furnace 2 at a position lower than an upper surface of a fluidized bed 1 for supplying the solid fuel into the fluidized bed 1. Confluence promoting means 15 is provided to allow the solid fuel supplied from the fuel supply pipe 14 into the fluidized bed 1 to join a flow of the bed material supplied from the downcomer 7 to an inner bottom of the fluidized bed 1.
    Type: Application
    Filed: August 20, 2008
    Publication date: June 9, 2011
    Applicant: IHI Corporation
    Inventors: Takahiro Murakami, Satoko Aoki, Toshiyuki Suda, Hidehisa Tani
  • Publication number: 20100101146
    Abstract: 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: Application
    Filed: March 1, 2007
    Publication date: April 29, 2010
    Applicant: IHI Corporation
    Inventors: Toshiro Fujimori, Hidehisa Tani, Toshiyuki Suda, Yoshiaki Matsuzawa, Kenichiro Kondo