Transforming Pulping with Oxygen: Meet Cláudia Esteves at RISE
- Nina Pulkkis
- Jun 23
- 1 min read
Postdoctoral researcher Cláudia Esteves at RISE is producing greener pulp fibers in the Emission Free Pulping program by optimizing an oxygen-induced delignification process to replace traditional pulping.
Instead of the typical kraft method, which only achieves a 50% pulp yield and relies on harsh chemicals and high temperatures. Claudia's approach uses pressurized oxygen directly on wood chips in a special type of reactor. This method with milder conditions and greener approaches, targets an impressive 70% pulp yield. Her work explores opportunities toward more sustainable practices in the pulping industry.
Emission Free Pulping is a 5-year research program led by VTT and RISE that aims to significantly reduce biomass burning and increase the product yield from wood from approximately 50% to around 70%. The program is projected to have a budget of around 15 million euros over the next five years.
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