Water Patents (Class 75/465)
  • Publication number: 20120079917
    Abstract: The invention relates to a method for simultaneously producing iron and a crude syngas containing CO and H2 by means of a blast furnace that is charged with iron ore and carbon-containing reducing agents. The amount of carbon-containing reducing agents fed to the blast furnace is greater than the amount of fuel required for producing the iron. Technically pure oxygen is fed into the blast furnace for the blast furnace process and for producing the crude syngas. In addition, CO2 and/or steam are fed to the blast furnace in order to control the ratio between CO and H2 in the crude syngas discharged from the blast furnace as top gas and/or moderate the temperature at which the oxygen is injected.
    Type: Application
    Filed: May 5, 2010
    Publication date: April 5, 2012
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventor: Johannes Menzel
  • Patent number: 5403378
    Abstract: To prevent burn-back at a coal dust injection lance which projects into a hot blast conduit of a blast furnace, cooling is effected using atomized coolant. Water is preferred as the coolant. The carrier gas used for the atomized water is either air or the oxygen which is injected through the lance for complete combustion of the coal dust.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: April 4, 1995
    Assignee: Kortec AG
    Inventors: William Wells, Ralph Weber