Patents by Inventor Tetsu Kawazoe

Tetsu Kawazoe 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).

  • Mercury removal from liquid hydrocarbon compound
    Patent number: 5062948
    Abstract: The invention provides a method for removing mercury from a liquid hydrocarbon feed material by (a) removing those components having a higher molecular weight than the desired hydrocarbon from the feed material, (b) removing water from the feed material, and thereafter (c) removing mercury from the feed material. Mercury can be removed to an extremely low concentration of 0.001 ppm or lower from a wide variety of liquid hydrocarbon feed materials containing either a relatively large amount or a trace amount of mercury.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: November 5, 1991
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Tetsu Kawazoe, Tsukasa Iida
  • Process for cracking hydrocarbons utilizing a mist of molten salt in the reaction zone
    Patent number: 4217204
    Abstract: Hydrocarbons are cracked in the presence of a mist of molten salt containing of basic compounds of alkali and alkaline earth metals and mixtures thereof, the amount of the molten salt to hydrocarbon being, by weight, from 0.01:1 to 10:1 followed by quenching at a temperature not lower than the melting point of the molten salt, and separating the cracked gas from the molten salt.
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: August 12, 1980
    Assignees: Mitsui Engineering and Shipbuilding Co., Ltd., Mitsui Petrochemical Industries Ltd.
    Inventors: Atsushi Sakai, Fumiaki Yamaguchi, Tetsu Kawazoe, Hayato Yonemori, Yoshio Machida