Patents by Inventor Manabu Higo

Manabu Higo 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).

  • Method for preventing fouling of a heat exchanger for cooling residue from a hydrodesulfurization/hydrocracking process
    Patent number: 7799212
    Abstract: A method which controls sedimentation occurring at a heat exchanger for cooling hydrodesulfurization/hydrocracking residue containing asphaltenes at a high content and thereby prevents fouling of the heat exchanger is disclosed. A method for preventing fouling of a heat exchanger for cooling hydrodesulfurization/hydrocracking residue, which injects flux oil into hydrodesulfurization/hydrocracking residue containing asphaltenes at 1% by mass or more, wherein the flux oil is at least one species of residue selected from the group consisting of crude vacuum distillation residue and fluidized catalytic cracking residue, and injected into the hydrodesulfurization/hydrocracking residue to control its actual sediment content at 0.2% by mass or less, determined in accordance with IP-375 is also disclosed.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: September 21, 2010
    Assignees: Tonen General Sekiyu K.K., Showa Shell Sekiyu K.K., Research Association of Refinery Integration for Group Operation
    Inventors: Norihiro Nakashima, Masayoshi Kuwbara, Manabu Higo, Hiroyuki Kobayashi
  • Method for preventing fouling of a heat exchanger for cooling residue from a hydrodesulfurization/hydrocracking process
    Publication number: 20070007178
    Abstract: A method which controls sedimentation occurring at a heat exchanger for cooling hydrodesulfurization/hydrocracking residue containing asphaltenes at a high content and thereby prevents fouling of the heat exchanger is disclosed. A method for preventing fouling of a heat exchanger for cooling hydrodesulfurization/hydrocracking residue, which injects flux oil into hydrodesulfurization/hydrocracking residue containing asphaltenes at 1% by mass or more, wherein the flux oil is at least one species of residue selected from the group consisting of crude vacuum distillation residue and fluidized catalytic cracking residue, and injected into the hydrodesulfurization/hydrocracking residue to control its actual sediment content at 0.2% by mass or less, determined in accordance with IP-375 is also disclosed.
    Type: Application
    Filed: February 27, 2006
    Publication date: January 11, 2007
    Inventors: Norihiro Nakashima, Masayoshi Kuwabara, Manabu Higo, Hiroyuki Kobayashi