Assessing HTL-oil as a renewable component for bitumen – step 1

Road pavement forms a critical part of our transport infrastructure system. It is also a large source of CO2 emissions into the environment. By using biobased materials in bitumen, the climate impact can be reduced. Hydrothermal liquefaction (HTL) is a promising thermochemical conversion method to produce bio-oils from biomass. It is hypothesized that part of HTL with increased viscosity can be used as a renewable component in bitumen. The objective of this project is to verify this hypothesis by a set of laboratory experiments and analysis. The knowledge gained is necessary to develop a HTL biobased bitumen product of lower carbon footprint for sustainable road pavements.


Nynas AB, RISE Processum and RISE.

Budget & time plan

The project’s total budget is 1 MSEK and the project runs during seven months – between November 2023 and June 2024.