Biorefineries research group lead by Prof. Herbert Sixta focuses on the fractionation of lignocellulosic raw materials into its polymeric and non-polymeric constituents and developing new routes for their chemical and biochemical conversion into high-value added products.
Chemical pulping refineries
We investigate radically new energy and resource efficient production technologiesfor chemical pulping, e.g. Kraft-Oxygen Delignification (KrOxy) process and new dissolving pulp technologies.
Novel fractionation processes
Our research group develops novel biomass fractionation processes based on the utilization of supercritical water and green solvents, e.g. gamma-valerolactone (GVL).
Man-made cellulose fibers
The Ioncell-F process is a green, non-toxic and environmentally friendly technology for the production of textile fibers from wood, recycled cardboard or waste cotton utilizing an ionic liquid. Read more about IONCELL-F.
Lignin is an interesting biomass component which can be converted into valuable products such as bio-oil. Lignin-cellulose blends can be used e.g. as precursor fibers for carbon fibers, or as natural dye in textiles.
Our research topics include the valorisation of xylan from alkaline extractions, production of xylo-oligosaccharides and catalytic conversion of biomass-derived sugars into furans.
Examples of ongoing research projects
- Trash-2-Cash (EU Horizon 2020)
- ACel - Advanced Cellulose to Novel Products (Clic Innovation)
- DWoC 2.0 - Design Driven Value Chains in the World of Cellulose (Tekes)
Professor, Head of the Department
herbert.sixta [at] aalto [dot] fi
Po. Box 16300