Community Research and Development Information Service - CORDIS


This study aims to determine the feasibility conditions of the Jupiter DRI smelting with the lowest energy consumption and the best productivity rates.

The DRI smelting trials on our pilot installations allowed us to obtain carburised metal at 1500 degrees Celsius with a productivity rate of 2 t/h on the pilot converter using only fossil energy and 4.8 t/h on the pilot electric arc furnace using electric energy instead of fossil energy.

The mathematical models show that the DRI smelting rate is not restricting when the DRI particles are injected in the metallic bath or in the slag and that the thermal transfer of the post combustion energy is performed with two steps; the thermal transfer from the post combustion flame to the slag and the thermal transfer between the slag and the metallic bath by means of metal droplets circulation between metal and slag.

In conclusion, the reactor able to assure the best productivity rate and the lowest energy consumption for the Jupiter DRI smelting will be able to use two types of energy. The use of fossil energy along with electric energy requires the development of an adapted reactor taking into account the effects of high de-carburisation rate, such as :

-A high level of slag foaming requiring an adapted shape of the reactor.

-A high quantity of metal droplets in this foaming slag, which are necessary to guarantee the thermal transfer of the post combustion energy to the metallic bath. lic bath.

Additional information

Authors: GRISVARD C, IRSID, Maizieres-Ies-Metz (FR);HUIN D, IRSID, Maizieres-Ies-Metz (FR)
Bibliographic Reference: EUR 19469 FR (2001), pp.57. Euro: 8.50
Availability: Available from EUR-OP Sales Agents
ISBN: ISBN: 92-894-1096-5
Record Number: 200013582 / Last updated on: 2001-07-30
Original language: fr
Available languages: fr