Bio-Oil / Diesel Mixture Fuels
Bio-oil is is produced in the pyrolysis of biomass. It is a highly viscous, acidic fluid and has high water content, making it unsuitable for use in current diesel internal combustion engines. Upgrading is possible but tedious. Alternatively, bio-oil can simply be mixed with bio-diesel in an emulsion. This appears to dramatically improve some of the qualities and make the resulting fuel much more like bio-diesel than crude bio-oil. This was developed by Canada's Ministry of Natural Resources (link and patent below).
- Pyrolysis liquid-in-diesel oil microemulsions by Michio Ikura et al., issued Oct. 1998
- Miscible, multi-component, diesel fuels and methods of bio-oil transformation by Thomas Adams et al., filed 2007