Production and recovery of a more reactive lignin from organic residues

Production and recovery of a more reactive lignin from organic residues


WR-cap AF




Landbouw, Water, Voedsel>A. Kringlooplandbouw>A3. Hergebruik organische zij- en reststromen






Many organic residual streams consist of lignocellulose, a complex of cellulose, hemicellulose and lignin. In the envisaged project a process for the extraction and conversion of lignin will be developed, such that a more reactive lignin is produced, which has a higher value. The companies participating in this project will use the improved lignin to produce new biobased materials such phenolic resins (foam), building materials (fibre plates) and coatings.

Doel van het project

The intended project is in line with priority 6 (circular agriculture, reuse of organic residual and side streams; development of robust system solutions for new raw materials for multiple valuation, total use). The contribution is the valorisation of lignocellulose-containing residual flows such as straw, stems and leaves in a biorefinery process in which almost all components (lignin, cellulose, hemicellulose, nutrients) are recoverable and recyclable. The value of lignin is given extra attention in the proposed project because lignin is a component that is only used in low-value applications in current practice. The project aims to develop a technically-economically feasible process for the conversion of lignin into phenolic resins and other polymer products. The method is in line with the observation of this priority that it is necessary to give the properties of residual streams via conversion technologies the correct functionality for the application. The intended project also contributes to priority 15 (Climate-neutral agriculture and food production; Production and use of biomass; Development of CO2-neutral building systems) because the project is developing a process for the production of building material (insulation foam) from organic residual streams from agriculture and forestry.

Mission circular agriculture and mission climate neutral agriculture and food production. The intended project will make it possible to obtain as much value as possible from organic residual streams, including as a building material.

Relatie met missie (Motivatie)

In this project co-products from paper making and biorefineries (in form of lignin) and lignocellulosic materials in general are used to produce a lignin that is more reactive than the know technical lignins that are currently on the market. Such high reactivity is required to produce certain biobased products, in this project anti-oxidant coatings and resin for panels. This project will generate the knowledge how to produce a more reactive lignin and tests will be carried out to make the desired biobased products.

Geplande acties

Report with the results of the R&D project. The information comprises:
• Mapped properties of various types of lignins from participants and from four WFBR fractionation processes
• How to improve the reactivity of the lignins in relation to their intended application
• Characterisation of the more reactive lignins
• Testing these lignins in applications
• Basic design of lignin modification facilities
• Economic assessment of the lignin modification processes
• Results of the demonstrator:
o Reactive lignin will be crosslinked to produce resin of high reactivity to produce panels
o Functionalised lignin with improved reactivity and compatibility to use as resin building block for rubber products
o As antioxidant in mattresses
• The market for reactive lignin and the biobased products made from this
• Information on the public perception expected on the new production chain
Samples of lignin produced by WFBR and participants to be tested by WR and participants.
Products produced from lignin.
The project will be carried out in three years. Meetings:
• Project kick-off,
• Project progress meeting (6X)
• Project closure,
• Short conference calls (every two months)