Patents by Inventor Henry R. Bueno C.

Henry R. Bueno C. 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).

  • Patent number: 5407460
    Abstract: A method for modifying existing direct reduction processes and retrofitting existing direct reduction facilities so as to increase the capacity of the facilities without the need for increasing the capacity of external reformers associated with the existing facilities comprises mixing preheated air with the reformed reducing gas produced in the external reformers and containing said mixture with excess natural gas in a reduction-reaction zone of the direct reduction reactor.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: April 18, 1995
    Assignee: C.V.G. Siderurgica Del Orinoco, C.A.
    Inventors: Henry R. Bueno C., Oscar G. Dam G., Pedro Torres, Felipe Gutierrez
  • Patent number: 5387274
    Abstract: A process for converting iron oxide to iron carbide at low pressure includes providing a reforming-reduction-carburizing reactor wherein a feed gas is reformed by contact with the iron oxide materials, the iron oxide material is reduced and thereafter contacted with a carburizing agent so as to carry out the conversion of iron oxide to iron carbide in the reactor.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: February 7, 1995
    Assignee: C.V.G. Siderurgica Del Orinoco, C.A.
    Inventors: Oscar G. Dam G., Henry R. Bueno C.
  • Patent number: 5078788
    Abstract: A process for the direct reduction of metal oxides containing iron to obtain a DRI metallized iron product comprises feeding heavy hydrocarbon oil under controlled conditions to a cracking zone upstream of the reduction reactor so as to form a cracked product rich in CH.sub.4 and thereafter feeding said cracked product directly to the reaction zone wherein a reformed reducing gas rich in H.sub.2 and CO is formed and contacted with said iron oxide material thereby effecting reduction of said iron oxide material in the reaction zone.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: January 7, 1992
    Assignee: C.V.G. Siderurgica del Orinoco, C.A.
    Inventors: Henry R. Bueno C., Oscar G. Dam G.
  • Patent number: 5069716
    Abstract: The present invention relates to a process for the production of liquid steel from iron containing metal oxides and, more particularly, a process for the direct production of iron-containing metal oxides wherein the hot discharge of direct reduced iron (DRI or sponge iron) is fed to a melting furnace with the process gases from the direct production furnace for refining the DRI to liquid steel.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: December 3, 1991
    Assignee: C.V.G. Siderurgica del Orinoco, C.A.
    Inventors: Oscar G. Dam G., Henry R. Bueno C., Gerardo A. Contreras L., Yura Gancthev V., Nicolas O. Guevara R.
  • Patent number: 5064467
    Abstract: A process for the direct reduction of iron-containing metal oxides to obtain iron is disclosed in which a reformed reduction gas rich in H.sub.2 and CO and having an oxidation degree in the range of from about 0.30 to about 0.35 is formed and reduction is carried out simultaneously in a single reaction zone of a reduction reactor. The reformed reduction gas is formed using a highly endothermic reaction during which a mixture of heated natural gas, recycled top gas and air, preferably oxygen enriched air, is placed into contact with heated surfaces of DRI metallized iron in the reaction zone. The resulting reformed reducing gas consists essentially of from about 45% to about 48% hydrogen, from about 32% to about 34% carbon monoxide, from about 2% to about 4% carbon dioxide, from about 1% to about 3% methane, from about 14% to about 16% nitrogen and from about 1% to about 3% water vapor.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: November 12, 1991
    Assignee: C.V.G. Siderurgica Del Orinoco, C.A.
    Inventors: Oscar G. Dam G., Henry R. Bueno C.