현대제철 통합보고서

As the world accelerates its response to climate change, the Korean government is implementing a wide range of policies to reduce emissions of pollutants, such as setting a cap on air pollutant emissions, and a seasonal system for managing emissions of fine dust pollution. Hyundai Steel has installed a Sinter Gas Treatment System(SGTS), which is an air pollutant reduction device, at the Dangjin Integrated Steelworks to reduce emissions of sulfur oxides(SOx) and nitrogen oxides(NOx), which are known to be contributors to fine dust (PM 2.5). Sinter plants produce the highest proportion of air pollutants of all the stages in the steel-making process. Accordingly, we have installed the SGTS at Sinter Plants 1 and 2, where the system has been in stable operation since 2019. With the installation of SGTS at Sinter Plant 3 in 2020, all three sinter plants in operation at the Dangjin Integrated Steelworks are now equipped with air pollutant reduction devices. This has led to a reduction in air pollutant emissions from our sinter plants of more than 50%, and has enabled us to maintain a stable emissions level of below 30% of the permitted standard. We plan to optimize the operation of the SGTS through the development of a low-temperature active SCR catalyst and through the stable recycling of desulfurization waste material.