The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2006
Filed:
May. 17, 2004
Pablo-enrique Duarte-escareno, Monterrey, MX;
Eugenio Zendejas-martinez, Monterrey, MX;
Carlos Lizcano-zulaica, Guadalupe, MX;
Pablo-Enrique Duarte-Escareno, Monterrey, MX;
Eugenio Zendejas-Martinez, Monterrey, MX;
Carlos Lizcano-Zulaica, Guadalupe, MX;
Hylsa, S.A. DE C.V., San Nicolas de los Garza, MX;
Abstract
A method and an integrated steel plant wherein, instead of using coke oven gases, converter gases and blast furnace top gases available as fuel for power generation or other heating purposes, these gases are more efficiently utilized as chemical agents for direct reduction of iron ores producing DRI. DRI is charged to blast furnaces increasing production of crude steel without increasing the capacities of the coke oven plant and blast furnaces and without changes in the quality of the crude steel, or, if production rate is maintained, the fossil fuels specific consumption is significantly reduced. Utilisation of primary fossil energy according to the invention also reduces the specific COemissions per ton of crude steel. The specific COemission in conventional integrated mills is about 1.6 tons of COper ton of crude steel.