TH13972EX - A process for direct reduction of materials containing fine powdered iron oxide. - Google Patents

Abstract

In a process for direct reduction of fine powdered iron oxide materials by a fluidized bed method with a modified gas mixture. With the upper gas generated by the reduction of ferrous materials. Oxide is directly and fed as a reducing gas in the fluidized bed reduction area to reduce the amount of energy required and to utilize the reducing gas potential, removing CO2. out From both the top gas and the transformed gas and adjust the amount of H2 in the reducing gas obtained By mixing the above gas with the transformed gas In the range between 45 and 75%, choose between 50 and 65% and have the amount of CO between 10 and 20%.

Claims (1)

1.Process for direct removal of fine powdered iron oxide materials with a method that Use a fluidized bed that mixes the reformed gas with the topgas formed directly from the reduction of the material containing the fine powder iron oxide. And feed it into redoxing gas In the fluidized bed reduction area It has a specific characteristic that removes CO2 from both above gases. And the transformed gas and to adjust the amount of H2 in the reducing gas obtained from the mixing of the gas. Above, with the gas that has changed to be in the