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.
Drop in fuels from black liquor
Assessing effects on pulp mills through process integration studies. Assessment of potentials and techno-economics.
Until June 2020.