Title:
METHOD AND APPARATUS FOR IMPROVED USE OF PRIMARY ENERGY SOURCES IN INTEGRATED STEEL PLANTS
Document Type and Number:
WIPO Patent Application WO2004101829
Kind Code:
A3
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 CO
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Inventors:
DUARTE-ESCARENO PABLO-ENRIQUE (MX)
ZENDEJAS-MARTINEZ EUGENIO (MX)
LIZCANO-ZULAICA CARLOS (MX)
ZENDEJAS-MARTINEZ EUGENIO (MX)
LIZCANO-ZULAICA CARLOS (MX)
Application Number:
PCT/IB2004/001953
Publication Date:
March 10, 2005
Filing Date:
May 17, 2004
Export Citation:
Assignee:
HYLSA SA (MX)
International Classes:
C21B5/00; C21B13/14; C21C5/28; (IPC1-7): C21B13/00; C21B13/14; C21B5/00; C21C5/56
Foreign References:
| US4822411A | 1989-04-18 | |||
| US4889323A | 1989-12-26 | |||
| DE3713630A1 | 1988-11-17 |
Other References:
KNOP K: "MINDERUNG DES CO2-AUSSTOSSES DURCH EINSATZ WASSERSTOFFREICHER REDUKTIONSGASE ZUR ERZEUGUNG VON EISENSCHWAMM REDUCTION OF CO2 EMISSIONS AS A RESULT OF USING HYDROGEN-RICH REDUCTION GASES FOR PRODUCING DIRECT REDUCED IRON", STAHL UND EISEN, VERLAG STAHLEISEN GMBH. DUSSELDORF, DE, vol. 122, no. 11, 14 November 2002 (2002-11-14), pages 43 - 51, XP001145072, ISSN: 0340-4803
DIEMER P ET AL: "POTENTIALS FOR UTILISATION OF COKE OVEN GAS IN INTEGRATED IRON AND STEEL WORKS POTENTIALE ZUR VERWERTUNG DES KOKSOFENGASES IN INTEGRIERTEN HUETTENWERKEN", STAHL UND EISEN, VERLAG STAHLEISEN GMBH. DUSSELDORF, DE, vol. 124, no. 7, 15 July 2004 (2004-07-15), pages 21 - 30, XP009036658, ISSN: 0340-4803
DIEMER P ET AL: "POTENTIALS FOR UTILISATION OF COKE OVEN GAS IN INTEGRATED IRON AND STEEL WORKS POTENTIALE ZUR VERWERTUNG DES KOKSOFENGASES IN INTEGRIERTEN HUETTENWERKEN", STAHL UND EISEN, VERLAG STAHLEISEN GMBH. DUSSELDORF, DE, vol. 124, no. 7, 15 July 2004 (2004-07-15), pages 21 - 30, XP009036658, ISSN: 0340-4803
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