Rourkela Steel Plant (RSP), a unit of Steel Authority of India Limited (SAIL), has made a notable advancement in sustainable steel production by introducing biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More injection in its Blast Furnace #1. This initiative, launched on August 24, 2024, represents the first use of biochar within SAIL’s operations and aims to reduce carbon emissions from the steelmaking process. The effort was supported by SAIL’s Research and Development Centre for Iron and Steel (RDCIS).

Biochar is produced through pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More, a process that decomposes biomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More in the absence of oxygen. The biochar used in RSP’s trial was derived from babool and bamboo, plants that are fast-growing and absorb significant amounts of CO2. By replacing some of the traditional Pulverized Coal Injection (PCI) with biochar, RSP hopes to lower its carbon footprint and contribute to sustainable development goals.

The trial of this innovative technology was a collaborative effort involving key leadership from RSP and RDCIS. During the launch, officials emphasized the importance of safety and the role of biochar in helping the steel plant achieve carbon neutrality. This initiative marks a significant step towards reducing the environmental impact of steel production and reflects SAIL’s commitment to exploring alternative, eco-friendly materials in industrial processes.

READ MORE: Rourkela Steel Plant becomes first SAIL unit to introduce Biochar Injection in blast furnace