METHOD FOR OPERATING A TOP GAS RECYCLING BLAST FURNACE INSTALLATION

Method of operating a blast furnace installation comprising a top gas recycle blast furnace (1) and hot stones (20), whereby a hydrocarbon containing fuel (10) is transformed into a transformed gas stream (15) consisting mainly of CO and H 2 and substantially devoid of hydrocarbon, whereby a low-hea...

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Bibliographic Details
Main Author Grant, Michael G. K
Format Patent
LanguageEnglish
French
German
Published 19.09.2018
Subjects
CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
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Summary:Method of operating a blast furnace installation comprising a top gas recycle blast furnace (1) and hot stones (20), whereby a hydrocarbon containing fuel (10) is transformed into a transformed gas stream (15) consisting mainly of CO and H 2 and substantially devoid of hydrocarbon, whereby a low-heating-value gaseous fuel (27) is generated comprising a mixture of said transformed gas (15) with a portion of the CO 2 - rich tail gas (8) obtained by decarbonatation of the blast furnace gas (3), and whereby said low-heating-value fuel (27) is used to heat the hot furnace gas (9, 19) is heated before being injected into the blast-furnace (1).
Bibliography:Application Number: EP20130306802