Integration of the Blast Furnace Route and the FINEX®‐Process for Low CO₂ Hot Metal Production

Abstract

The blast furnace is the most important process for the production of hot metal. An integral part of this process route is the coking of coal and sintering of fine ore. The FINEX®‐process is a new technology for hot metal production which uses untreated fine ores and coal instead of sinter and coke. This paper deals with the investigation of integration concepts of the blast furnace and FINEX®. Low reduced iron (LRI) and/or reducing gas are/is produced in FINEX® and are/is considered as substitute/s of burden and fuel in the blast furnace, respectively. In the article the overall fuel demand and CO2 emissions for the integration of the blast furnace and FINEX® are shown. For that reason two case studies for the integration are carried out and compared with the base case, that is, the two‐independent processes. The CO2 emissions are calculated considering the fuel and electric power consumption of the different cases.

Nucleation and Growth of Iron Whiskers during Gaseous Reduction of Hematite Iron Ore Fines

“…Getting rid of the process of sintering and agglomeration, the direct reduction process using iron ore fines directly has many advantages such as high efficiency, energy saving, and environmental protection. Non-blast furnace iron-making processes that can directly treat iron ore fines include smelting reduction processes of HIsmelt [5], HIsarna [6], Flash iron-making technology (FIT) [7], and direct reduction processes of Finex [8], Finmet [9]. However, the high-temperature smelting reduction process requires the reduction of ore fines at temperatures above 1573 K, which is very likely to cause melting problems of mineral powders and erosion of refractory materials [10].…”

Influence of Operation Parameters on Dome Temperature of COREX Melter Gasifier

“…[9][10][11][12][13][14][15] The data used in the calculation model are from COREX-3000 actual production in October 2010. Material balance was calculated by means of the element balance of Fe, C, H and O.…”

Adiabatic Carbon Rate of Alternative Ironmaking Processes to Produce Hot Metal

“…Corex, Finex, Hismelt etc. The product of these processes is liquid iron . Carbon rate cannot be compared between direct reduction and smelting reduction due to different product (solid iron and liquid iron).…”