The focus of the lignocellulose biorefinery is on the pulping of raw materials containing lignocellulose and their fractionation into their basic chemical components lignin and sugars or fibers. To investigate and develop processing and fractionation technologies an integrated pilot plant is available that permits pulping using organic solvents under pressure and temperature, the so-called Organosolv technique.
The facility models a large number of individual process steps for manufacturing fibers, concentrated sugar solutions and lignin. Up to 70 kg of wood can be processed every day. The facility was designed in such a way that the substance and energy cycles form closed systems and can therefore be completely balanced.
In addition to the Organosolv process, the universal design of the pilot plant also enables other pulping methods for lignocellulose to be optimized on the pilot scale, for example aqueous hydrolysis, pulping by means of acid or the soda process. Comprehensive analytics are available for balancing the processes. Questions in the area of thermal separation technology and extraction can also be answered using individual process-technological units in the plant. Here there is a strong interaction with the field of competence “Downstream Processing”.