STAB3
Stability Improvement of Biooil-Bunker-Blends
Background
The current transition towards net-zero emission of CO2 requires shipping to move towards new fuels for existing ships and engines.
At present availability of new fuels of quality are limited compared to the size of bunker market (300 mill tons annually) and hence it is desirable that green fuels available can be added into the existing conventional bunker pool.
This requires that fuel blends are stable in term of phase separation, solids precipitation or sludge formation which can be detrimental to the flawless use.
We aim to answer the following problem statements:
How to determine if a Biocrude can be mixed with fossil oil?
What are the relevant variables and if not miscible, how can this be resolved?
B
Objectives
- Develop an improved platform for assessing stability of blends of biooils and fossil oils which can also test biooil-biooil blend.
- Using above methodologies to formulate dispersants and cosolvents to enhance blend stability
Expected results/impact
Currently, stability tests for biooil-fuel blends rely on outdated methods designed for fossil fuels, focusing solely on the so called asphaltene stability – hence only stability of fossil macromolecules.
The new method uses a different tactic and can therefore be adapted to compounds without asphaltenes. Moreover, it is non-invasive, allowing long-term stability assessment without needing to sub-sample or separate.
Further the new test method will be used to assess if a biooil-fuel blend can be enhanced in terms of stability via addition of chemical additive to improve miscibility or avoid phase separation.
Contact
Simon Ivar Andersen
Professor
Budget
5,4 M DKK
Partners
4
Start
June 2024
Duration
24 Months
Partners
