Processing of raw materials

The focus in the field of raw materials processing 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”.

Current issues

  • Development of the scientific-technical basis for the conception of an Organosolv demonstration plant in the region of Central Germany
  • Modeling of specially made-up lignins for the use with phenol formaldehyde resins and polyurethane as well as for producing carbon fibers
  • Provision of beechwood fiber material to produce fiber composites

Further information



Find out about our projects and research topics at the Fraunhofer CBP.



Information about the technical equipment of the Fraunhofer CBP.


Brochures and product sheets

Here you will find the brochures of the Fraunhofer Center for Chemical-Biotechnological Processes CBP..