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Drop in fuels from black liquor part streams

In this project we investigate possibilities to produce drop-in biofuels from a partial stream of the total black liquor (BL) in kraft pulp mills. Focus is on petrol components, which today has fewer options than renewable diesel, and can thus contribute to the transport system transition on relatively short term and within the reduction obligation system. Different technology tracks are studied based on 1) lignin liquefaction/hydrotreatment and 2) BL gasification/catalytic synthesis.

By using only a share of all BL, pulp mills with limited recovery capacity can increase the pulp production. We evaluate both the biofuel production (costs, greenhouse gases
(GHG), production potential, technology maturity) and effects on the pulp production from debottlenecking the recovery boiler, and have participants from both pulp and refinery industry. Favourable results may increase the drivers for investment in pulp mill integrated production of biofuels with high GHG performance.


Project name

Drop in fuels from black liquor



RISE role in project

Assessing effects on pulp mills through process integration studies. Assessment of potentials and techno-economics.

Project start


Until June 2020.

Total budget



Luleå Tekniska Universitet, SunCarbon, Södra Skogsägarna, Preem, Smurfit Kappa


Energimyndigheten, f3 Svenskt kunskapscentrum för förnybara drivmedel


Project members

Supports the UN sustainability goals

7. Affordable and clean energy
13. Climate action
Erik Furusjö

Contact person

Erik Furusjö


Read more about Erik

Contact Erik

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