Commercial gaps for bioethanol production

The shift from fossil-based energy sources towards greener alternatives is gaining ground. One such alternative is bioethanol production. Johann Görgens, professor of chemical engineering at Stellenbosch University, carried out a study of the production of bioethanol from plant biomass, and explained the results to Pieter Dempsey.

- Pieter Dempsey

What is the role and purpose of the research into the potential for ethanol production from biomass in South Africa?

Bioethanol is a multipurpose product that can unlock various commercial opportunities in South Africa’s economy. The ultimate aim is to move towards a more sustainable, lower-carbon economy.

Bioethanol can be used for blending with petrol (for the local or international market), or for conversion to sustainable aviation fuels, industrial chemicals and/or bio-based polymers/plastics. Appropriate design of these production methods will result in substantial environmental benefits over the fossil-fuel-based products they replace.

Why was the research conducted, and why is there ongoing interest in unlocking technologies and commercial opportunities?

The work was carried out under the auspices of the Research Chair in Biofuels at Stellenbosch University, as well as through local research collaborations that have an ongoing interest in unlocking new technologies and commercial opportunities in South Africa’s economy. Bioethanol is also under consideration as a potential growth opportunity in the Sugarcane Value Chain Master Plan to 2030.

The national Bio-economy Strategy of South Africa foresees significant opportunities for economic growth and job creation in this sector. These are associated with anticipated social and environmental benefits, including reductions in greenhouse gas emissions in line with the Paris Accord, of which South Africa is a signatory.

How was the research conducted and what findings emerged?