Community Research and Development Information Service - CORDIS


Final report on Contract No 7210-PA/001; 1 July 1997 to 31 December 2000

High coal injection rates have been achieved on several blast furnaces, but only for limited periods. The aim of this project was to establish the required conditions for achieving very low coke rates (greater than 300 kg/tHM) and coal rate in excess of 220 kg/tHM, under long-term industrial conditions. But despite some improvement in the coke and coal rate ratios, the search for safe operation, on the one hand, and some technological problems, on the other, did not enable the initial objectives to be reached. Despite this result, various studies undertaken during the course of the project produced some interesting conclusions related to the search for high coal rate operation. These studies dealt with:

- The comparison of the burden at both plants.
- The way to promote coal combustion.
- Evaluation of the thermo-chemical conditions of the shaft at coal rates around 180kg/tHM.
- Monitoring the evolution in time of the hearth conditions at high coal injection practice.
- The blast furnace process at high coal injection rate.

Additional information

Authors: SERT D, IRSID, Maizières-Les-Metz (FR);GODIJN R, CORUS IJmuiden (NL)
Bibliographic Reference: EUR 20107 EN (2002), pp.126. Euro: 19.00
Availability: EUR-OP reference: KI-NA-20107-EN-S. Available from EUR-OP sales agents. URL:
ISBN: ISBN: 92-894-3152-0
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