Community Research and Development Information Service - CORDIS


Blast- and coke furnaces produce large quantities of gases. By decarbonating these gases it would be possible to produce a reducing gas suitable for injection into the tanks of furnaces. This would reduce coke consumption and the quantity of gas rejected from the furnace throat, particularly carbon dioxide. We determined the specifications of the reducing gas required for injection into the tank. We found that the best method for decarbonating throat gas is gas-liquid extraction using methyldiethanolamine. For two reasons (reduction in quantity of coke-furnace gas available for reconstitution, closure of furnace to be used for trials and industrial demonstration) the project was redirected towards an area of more practical interest: the study and optimization of the COMET process, a new method of direct reduction using solid carbon as a reducing agent. We also studied the effect of carburization. Finally, we studied the effect of the degree of granulation in raw materials on the caracteristics of the finished product, and demonstrated that a wide range of raw materials can be used in this process with no requirement for excess carbon or a decarbonating agent. We also developed a method for calculating the ideal dimensions of an industrial furnace

Additional information

Bibliographic Reference: EUR 18533 FR (1998) 69pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-4888-4
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