Patents by Inventor Sergey Grigorievich Stepanov

Sergey Grigorievich Stepanov 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: 20110056127
    Abstract: The invention relates to coal conversion, and in particular, to the production of thermal power and high-calorific solid fuel (coke) out of coal for metallurgy, power production, and other industries. The method uses 0-35 mm coal particles as initial raw material, the coal conversion being performed in two steps of fluidized bed heat treatment. At the first step, the raw material is thermally oxidized at 650-800° C. with air supply, and at the second step the coke product is cooled by supply of water steam or chilled flue gases. The apparatus for embodying the method includes a boiler where a furnace comprises two fluidized-bed sections separated with a barrier, the first section being supplied with air, and the second section being supplied with water steam or chilled flue gases.
    Type: Application
    Filed: June 2, 2008
    Publication date: March 10, 2011
    Inventors: Sergey Romanovich Islamov, Sergey Grigorievich Stepanov
  • Publication number: 20080190754
    Abstract: The invention relates to producing lump semicoke and can be used in metallurgy. Essence of the invention consists in that a method for producing said lump semicoke calls for using, as coal bed, coal having a fraction of 20-70 mm and air is supplied thru the coal bed with a relative blowing rate of 70-99.5 m3/m2·hr according to a coal rank.
    Type: Application
    Filed: April 1, 2005
    Publication date: August 14, 2008
    Inventors: Sergey Romanovich Islamov, Sergey Grigorievich Stepanov, Aleksey Borisovich Morozov