Patents by Inventor Masayasu Sakai

Masayasu Sakai 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).

  • Publication number: 20150005399
    Abstract: A method for producing synthetic gas with which a virtually soot-free synthetic gas having a good composition can be efficiently obtained by a simple device using a liquid biofuel as the starting material, and it is thereby possible to produce a high-quality liquid fuel such as methanol, gasoline or kerosene. Steam and a liquid biofuel produced by pyrolysis of a biomass are fed to the gasification space inside a reactor tube that is not loaded with a catalyst inside the reactor tube and heated to 800 to 1,200° C. from the outside via the reactor tube walls to induce an endothermic reaction and thereby a steam reforming chemical reaction between the steam and the liquid biofuel. By setting the molar ratio of the fed steam and carbon in the liquid biofuel ([H2O]/[C]) at 0.3 or higher, a synthetic gas having a good composition that is virtually free of tar and soot and is primarily H2 and CO is obtained.
    Type: Application
    Filed: November 29, 2012
    Publication date: January 1, 2015
    Inventors: Masayasu Sakai, Nobuaki Murakami, Nobutaka Morimitsu, Yasunori Takei, Akira Hasegawa
  • Publication number: 20140239233
    Abstract: Provided is a method for producing a production gas and an apparatus using the same with which a load may be increased in biomass treatment and the quality of the production gas may be improved. According to the present invention, a raw material fluid (F2) containing a biomass (M1) is supplied from an upstream end (22a) toward a downstream end (22b) in a raw material passage (22) separated from the outside by a reaction tube wall (21), and the raw fluid (F2) of the raw material passage (22) is heated from the outer side of the raw material passage (22) through the reaction tube wall (21) by a first heating means (F1). The raw material passage (22) comprises a first gasification region (23) where a first gasification reaction occurs in which at least part of the biomass is gasified by heating conducted by the first heating means (F1), and a second gasification area (25) disposed closer to the downstream end (22b) than to the first gasification region (23).
    Type: Application
    Filed: June 4, 2012
    Publication date: August 28, 2014
    Inventors: Masayasu Sakai, Nobuaki Murakami, Akira Hasegawa
  • Patent number: 8100992
    Abstract: A biomass thermochemical gasification apparatus is provided that can manufacture high-quality fuel gas out of solid biomass in an industrial manner. This fuel gas can be used as fuel for a gas engine and a gas turbine for example and also can be used as synthesis gas for methanol synthesis. A high-temperature combustion gas generation apparatus (101) for biomass operates entirely by biomass and the heat source thereof does not depend on fossil fuel. A coarsely-ground powder biomass (205) subjected to gasification and gasification agent (303) are introduced to a primary gasification reaction room (202) and generate gasification reaction by, as reaction heat, radiation heat from a wall face of the primary gasification reaction room (202) heated by combustion gas (109a) generated in the high-temperature combustion gas generation apparatus (101) and are dissolved. Consequently, the biomass (205) is converted to clean and high-quality generated gas.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: January 24, 2012
    Assignee: Nagasaki Institute of Applied Science
    Inventors: Masayasu Sakai, Toshiyuki Takegawa, Hachiro Kawashima, Nobuaki Murakami
  • Publication number: 20110065815
    Abstract: Disclosed is an apparatus for producing a hydrocarbon from a biomass such as a glass or wood, which comprises: a biomass gasification unit (101) for feeding a raw material biomass (MB) and an overheated water vapor (S) for gasifying the biomass and a fuel biomass (FB) and air (A) for burning the fuel biomass, thereby producing a mixed gas (G) mainly composed of hydrogen and carbon monoxide; a clean-up means (201) for purifying the mixed gas (G); a gas tank (301) for storing the cleaned-up mixed gas (G) temporarily; a pressurizing pump (401) for pressurizing the mixed gas (G); and a hydrocarbon synthesis unit (501) for converting the pressurized mixed gas (G) into a hydrocarbon.
    Type: Application
    Filed: August 13, 2008
    Publication date: March 17, 2011
    Inventors: Masayasu Sakai, Tadashi Yokoi
  • Publication number: 20100299995
    Abstract: A biomass thermochemical gasification apparatus is provided that can manufacture high-quality fuel gas out of solid biomass in an industrial manner. This fuel gas can be used as fuel for a gas engine and a gas turbine for example and also can be used as synthesis gas for methanol synthesis. A high-temperature combustion gas generation apparatus (101) for biomass operates entirely by biomass and the heat source thereof does not depend on fossil fuel. A coarsely-ground powder biomass (205) subjected to gasification and gasification agent (303) are introduced to a primary gasification reaction room (202) and generate gasification reaction by, as reaction heat, radiation heat from a wall face of the primary gasification reaction room (202) heated by combustion gas (109a) generated in the high-temperature combustion gas generation apparatus (101) and are dissolved. Consequently, the biomass (205) is converted to clean and high-quality generated gas.
    Type: Application
    Filed: October 22, 2007
    Publication date: December 2, 2010
    Inventors: Masayasu Sakai, Toshiyuld Takegawa, Nobuaki Murakami
  • Publication number: 20090318572
    Abstract: The liquid fuel synthesizing apparatus (1) for efficient synthesis of liquid fuel from biomass, such as plant for a raw material, comprised of reactors (2) with a catalyst incorporated therein, coolers (3) for cooling of synthesized gaseous matter and extracting of liquid fuel, and temperature adjustment means (7) for regulating by heat exchange any unreacted gas after recovery of liquid fuel to reaction temperature suitable for liquid fuel gas synthesis, wherein the reactors, the coolers and the temperature adjustment means are arranged multistage inline-straightly along gas flow. The temperature adjustment means (7) and the reactors (2) are disposed in the constant temperature room (8) in parallel. The coolers (3) are disposed apart from the constant temperature rooms (8).
    Type: Application
    Filed: December 5, 2007
    Publication date: December 24, 2009
    Inventors: Masayasu Sakai, Nobuaki Murakami, Toshiyuki Takegawa, Hachiro Kawashima
  • Patent number: 6991769
    Abstract: Methanol is synthesized from a gas produced through gasification of biomass serving as a raw material, making use of a biomass feeding means for feeding biomass into a furnace main body and, located above the biomass feeding means, combustion-oxidizing-agent-feeding means for feeding into the furnace main body a combustion-oxidizing agent containing oxygen or a mixture of oxygen and steam.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: January 31, 2006
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shozo Kaneko, Susumu Sato, Yoshinori Kobayashi, Tatsuo Kabata, Kazuto Kobayashi, Yoshiyuki Takeuchi, Kimishiro Tokuda, Akira Hashimoto, Katsuhiko Shinoda, Keiji Takeno, Shinji Matsumoto, Hideaki Ohta, Tsugio Yamamoto, Masayasu Sakai, Toshiyuki Takegawa, Yajyuro Seike
  • Publication number: 20040237405
    Abstract: A process of the gasification of glass fiber reinforced plastics includes feeding a glass fiber reinforced plastic material to a rotatable gasification furnace, heating the material to a temperature of 650 to 750° C. in the presence of oxygen and steam to gasify the plastic component thereof, recovering the remaining glass fibers; introducing the resulting plastic gas into a plastic gas decomposition section, partially oxidizing the plastic gas at a temperature of 700 to 1000° C. in the presence of additional oxygen or an additional mixture of oxygen and steam, and recovering the CO and H2 so produced.
    Type: Application
    Filed: July 1, 2004
    Publication date: December 2, 2004
    Applicant: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Yoshiyuki Takeuchi, Tadaaki Tamura, Masayasu Sakai, Takayuki Harada, Kunihisa Fujiwara, Ritsuo Hashimoto, Hirotoshi Horizoe
  • Publication number: 20020159929
    Abstract: Methanol is synthesized from a gas produced through gasification of biomass serving as a raw material, making use of a biomass feeding means for feeding biomass into a furnace main body and, located above the biomass feeding means, combustion-oxidizing-agent-feeding means for feeding into the furnace main body a combustion-oxidizing agent containing oxygen or a mixture of oxygen and steam.
    Type: Application
    Filed: January 28, 2002
    Publication date: October 31, 2002
    Inventors: Shozo Kaneko, Susumu Sato, Yoshinori Kobayashi, Tatsuo Kabata, Kazuto Kobayashi, Yoshiyuki Takeuchi, Kimishiro Tokuda, Akira Hashimoto, Katsuhiko Shinoda, Keiji Takeno, Shinji Matsumoto, Hideaki Ohta, Tsugio Yamamoto, Masayasu Sakai, Toshiyuki Takegawa, Yajyuro Seike
  • Patent number: 5500086
    Abstract: Method for producing pulp by using an alga containing cellulose in the cell wall and having the long algae body with the ratio of length to width being 10 to 200 as an ingredient by giving no special treatment or by giving a simple bleaching treatment to produce pulp.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: March 19, 1996
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Masayasu Sakai, Touru Seto, Masato Kaneko, Michio Hada, Toshiaki Kinomoto
  • Patent number: 4329932
    Abstract: A method of burning fuel with lowered emission of nitrogen oxides comprises feeding pulverized fuel to the main burner in a combustion furnace and additionally feeding pulverized fuel to the region of the furnace where the first fuel is about to conclude its combustion, using inert gas with or without a low oxygen content as a conveying fluid, while supplying oxygen or air to a region downstream of the region for fuel addition.
    Type: Grant
    Filed: June 3, 1980
    Date of Patent: May 18, 1982
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Yasuro Takahashi, Masayasu Sakai
  • Patent number: 4144016
    Abstract: A burner includes a plurality of air nozzles open toward a furnace and which are disposed unsymmetrically with respect to the central axis of the burner and so combined that the velocity of combustion air to issue from one or more of the nozzles is higher than the mean air velocity through the total air nozzle opening area and the velocity of combustion air from the rest of the nozzles is lower than the mean velocity. The opening area of the lower-velocity air nozzle or nozzles accounts for from 30 to 60% of the total opening area. A fuel nozzle or nozzles are located within or adjacent the lower-velocity air nozzle or nozzles. The amount of air to issue from the lower-velocity air nozzle or nozzles is not more than 70% of the theoretical air for the fuel to jet out of the burner.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: March 13, 1979
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Yasuro Takahashi, Hisao Yamamoto, Masayasu Sakai, Toshiyuki Takegawa