Discussion on oilfield associated gas for blast furnace injection

To utilize the oilfield associated gas resource discovered in the region of Shougang Jingtang United Iron steel Co.,Ltd.,the technological process and the concrete way of injecting the oilfield associated gas in blast furnace were discussed consulting the production practice of natural gas injection of blast furnace abroad.The caloric value of blended coal used for the blast furnace of Shougang Jingtang United Ironsteel Co.,Ltd.(the ratio of bituminous coal and anthracite coal was 4∶6)was about28.47 MJ/kg.The caloric value of the oilfield associated gas was 38.42 MJ/ m3.Injecting 19.2m3 natural gas per ton iron could replace 25.9kg blended coal according to the calculation of equivalence principle.The oilfield associated gas was regarded as gas injection fuel of blast furnace and it could make the blast furnace run steadily.