According to Primetals Technologies, the study is part of Hyundai Steel’s long-term goal to achieve carbon neutrality by 2050. 

“The completed report will enable Hyundai Steel to determine the most environmentally efficient operation of the three blast furnaces at its Dangjin plant,” Primetals Technologies said. 

The study is to be carried out in two phases, with the first phase designed to assess the impact of injecting hydrogen bearing gases into the furnace via the tuyeres. Project leaders will look at production stability, yield, and emissions reduction. 

They will also assess the impact of sequence impulse process (SIP) technology on the furnace. As Primetals Technologies explains: "SIP technology pulses high-pressure oxygen in a pre-determined sequence to each tuyere; shock waves penetrate deep into the raceway of the blast furnace, combusting the fine char build-up and improving coke permeability. This process enhances gas utilization and improves furnace drainage."

In the second phase, the company will explore the physical layout options at the plant for each technology, including necessary pipework and associated capital costs.