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METHOD AND APPARATUS FOR PRODUCING DIRECT REDUCED IRON WITH IMPROVED REDUCING GAS UTILIZATION
METHOD AND APPARATUS FOR PRODUCING DIRECT REDUCED IRON WITH IMPROVED REDUCING GAS UTILIZATION
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机译:利用改进的还原气利用量生产直接还原铁的方法和装置
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摘要
A method and apparatus including a reduction reactor (10) for producing DRI, prereduced materials utilized in the steelmaking industry, where hydrogen contained in the gas stream purged from the reduction reactor (10) is separated (preferably by means of a PSA system) (52) and recycled to said reduction reactor (10). The productivity of the reduction plant is increased by using the separated hydrogen as a chemical reductant in the reactor (10), instead of using it as fuel. This is particularly useful in upgrading existing DRI production methods.
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