Primetals Technologies to determine the best enabling technologies to minimize blast furnace carbon emissions

-Identify the optimal route to maximize production and ironmaking efficiency

-Potential to improve operating costs and lower the cost per ton of hot metal

Recently, Hyundai Steel in Dangjin, South Korea, has placed an order with Primetals Technologies for a blast furnace gas injection study. The study will be executed in two phases.

Phase 1 will focus on a process performance study which will evaluate the impact that injecting hydrogen bearing gases into the furnace via the tuyeres will have on production stability, yield, and emission reduction. This phase will also investigate the impact of operating Sequence Impulse Process (SIP) technology on the furnace. 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.

Phase 2 will explore the physical layout options at the plant for each technology, including necessary pipework and associated capital costs.