Wicus van der Westhuizen, a PhD student in Bioresource Engineering at the Department of Chemical Engineering at Stellenbosch University, is exploring the application of steam explosion to transform lignocellulosic materials into a binder for coal-fines briquetting. His research focuses on treating resources such as sugarcane bagasse, corn stover, and invasive species like eucalyptus and black wattle. The goal is to produce a binder that not only enhances the performance of coal-fines briquetting but also generates valuable pre-biotics for use in human and animal nutrition.
This project is particularly relevant given South Africa’s significant reliance on coal and the growing need for renewable energy strategies alongside waste management. By developing a bio-based binder through steam explosion, the research supports the integration of bioenergy into existing coal infrastructure. This approach contributes to the transition towards renewable energy while addressing the environmental impacts associated with coal.
Wicus’s work illustrates a promising fusion of sustainable technology with traditional energy practices. By leveraging steam explosion to create an effective binder and valuable co-products, the research provides innovative solutions to both energy and environmental challenges, paving the way for a more sustainable future.
Supervisor: Prof. Johann Görgens – Department of Chemical Engineering, Stellenbosch University
The steam gun used for steam explosion of lignocellulose.
Sugarcane bagasse before and after steam explosion.
Coal-fines
Coal-fines briquettes produced using sugarcane bagasse as binder
