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Deodorization of kraft lignin for thermoplastics – a new testbed

A process for deodorisation of kraft lignin will be scaled up to demo scale in this project. The produced odour reduced lignin will then be used as a feedstock for the production of lignin-based bioplastics and used in different prototypes. Test will be performed using this bioplastic as a raw material for 3D printers.

Kraft lignin has an undesirable small. This odour is limiting the use of lignin in many applications where smell cannot be accepted. There is therefore a demand for kraft lignin without any odour that can enable the use of lignin on new markets. One such market is the use of lignin as a raw material to produce plastics for indoor applications.

RISE has in a collaboration with the company Valmet developed a process for the reduction of odour in kraft lignin. Valmet owns a patent covering this process. This process has been developed in lab scale and verified in pilot scale. Now, a demonstration plant is under construction. This project is aiming for the commissioning of this demo plant, for optimising the operation and for the production of test quantities of odour reduced lignin for testing in downstream processes.

The odour reduced lignin will be tested in the production of biobased thermoplastics by Lignin Industries. These plastics will also be tested by The Wood Region as a raw material for 3D printers.


Project name

Deodorization of lignin for plastics



RISE role in project

RISE is the project leader

Project start


2 years and 6 months

Total budget

6.3 MSEK including in-kind contribution


RISE, Valmet, Lignin Industries, Torsby kommun


The Swedish Energy Agency

Project members

External press

Supports the UN sustainability goals

9. Industry, innovation and infrastructure
12. Responsible consumption and production
Robert Gustavsson

Contact person

Robert Gustavsson


+46 10 228 45 04

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