利用焦炉煤气生产直接还原铁技术

Technology of producing direct-reduced iron with coke oven gas

介绍了用焦炉煤气生产直接还原铁(DRI)的工艺过程。用气基竖炉生产DRI具有生产规模大、生产成本低、生产操作方便灵活、环境友好等特点,其希尔自重整(HYL-ZR)工艺为首选。用循环经济的观点,合理利用钢铁长流程生产过程产生大量的焦炉煤气代替天然气生产DRI,形成我国特有的长流程与短流程并存的钢铁冶金新流程,是我国钢铁工业发展实际状况的过渡性选择。

The process of producing direct-reduced iron（DRI） with coke oven gas was introduced.The production of DRI with gas-based vertical furnace was characterized by large production capacity,low production cost,flexible and convenient production operation and friendly-environment,therefore HYL-ZR rectifying process was selected first.From the viewpoint of circulation economy,to produce DRI with large volume of coke oven gas produced in iron and steel long flow production process instead of natural gas can form a new metallurgical process of iron and steel co-existed in long flow and short flow featured in our country,which was the transit selection of actual condition of iron and steel industry development in our country.