Patents by Inventor Naruhito Omine

Naruhito Omine 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).

  • Wet type flue-gas desulfurization method
    Patent number: 9327236
    Abstract: A wet type flue-gas desulfurization apparatus, into which exhaust gas containing mercury goes, includes an upstream absorption tower, an upstream absorbent spray nozzle and a make-up water supply unit on an upstream side of a desulfurization apparatus body in a flow direction of the gas. The upstream absorption tower has a circulation tank reserving absorbent slurry. The make-up water supply unit supplies make-up water into the circulation tank to keep the chloride ion concentration of the absorbent in the circulation tank not lower than 50,000 ppm. Thus, it is possible to provide a wet type flue-gas desulfurization apparatus by which Hg can be prevented from being released again from the desulfurization apparatus, the purity of recovered gypsum can be increased and the usage of industrial water can be reduced.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 3, 2016
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Yoshiaki Mitsui, Hiroshi Ishizaka, Naruhito Omine, Atsushi Katagawa, Ryota Ochiai
  • Wet Type Flue-Gas Desulfurization Method
    Publication number: 20150174526
    Abstract: A wet type flue-gas desulfurization apparatus, into which exhaust gas containing mercury goes, includes an upstream absorption tower, an upstream absorbent spray nozzle and a make-up water supply unit on an upstream side of a desulfurization apparatus body in a flow direction of the gas. The upstream absorption tower has a circulation tank reserving absorbent slurry. The make-up water supply unit supplies make-up water into the circulation tank to keep the chloride ion concentration of the absorbent in the circulation tank not lower than 50,000 ppm. Thus, it is possible to provide a wet type flue-gas desulfurization apparatus by which Hg can be prevented from being released again from the desulfurization apparatus, the purity of recovered gypsum can be increased and the usage of industrial water can be reduced.
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Inventors: Yoshiaki MITSUI, Hiroshi ISHIZAKA, Naruhito OMINE, Atsushi KATAGAWA, Ryota OCHIAI
  • Wet Type Flue-Gas Desulfurization Apparatus and Thermal Power Plant Having the Same
    Publication number: 20130036953
    Abstract: A wet type flue-gas desulfurization apparatus, into which exhaust gas containing mercury goes, includes an upstream absorption tower, an upstream absorbent spray nozzle and a make-up water supply unit on an upstream side of a desulfurization apparatus body in a flow direction of the gas. The upstream absorption tower has a circulation tank reserving absorbent slurry. The make-up water supply unit supplies make-up water into the circulation tank to keep the chloride ion concentration of the absorbent in the circulation tank not lower than 50,000 ppm. Thus, it is possible to provide a wet type flue-gas desulfurization apparatus by which Hg can be prevented from being released again from the desulfurization apparatus, the purity of recovered gypsum can be increased and the usage of industrial water can be reduced.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Applicant: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Yoshiaki Mitsui, Hiroshi Ishizaka, Naruhito Omine, Atsushi Katagawa, Ryota Ochiai