| 摘要 |
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). |
