Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32451
Phase Behaviors and Fuel Properties of Bio-Oil-Diesel-Alcohol Blends

Authors: P. Weerachanchai, C. Tangsathitkulchai, M. Tangsathitkulchai


Attempt was made to improve certain characteristics of bio-oil derived from palm kernel pyrolysis by blending it with diesel fuel and alcohols. Two types of alcohol, ethanol or butanol, was used as cosolvent to stabilize the phase of ternary systems. Phase behaviors and basic fuel properties of palm kernel bio-oildiesel- alcohol systems were investigated in this study. Alcohol types showed a significant influence on the phase characteristics with palm kernel bio-oil-diesel-butanol system giving larger soluble area than that of palm kernel bio-oil-diesel-ethanol system. For fuel properties, blended fuels showed superior properties including lower values of density (~860 kg/m3 at 25°C), viscosity (~4.12 mm2/s at 40°C), carbon residue (1.02-2.53 wt%), ash (0.018-0.034 wt%) and pour point (<-25 to -7 °C), increased pH (~ 6.4) and giving reasonable heating values of 32.5-41.2 MJ/kg. To enable the prediction of some properties of fuel mixtures, the measured fuel properties including heating value, density, ash content and pH were fitted by Kay-s mixing rule, whereas the viscosities of blended fuels at different temperatures were correlated by the modified Grunberg-Nissan equation and Andrade equation.

Keywords: Bio-oil, fuel blend, fuel properties, phase behaviour.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3745


[1] S. Czernilk and A. V. Bridgwater, "Overview of applications of biomass fast pyrolysis Oil". Energy & Fuels, vol. 18, pp. 590-598, 2004
[2] A. V. Bridgwater, and M. L. Cottam. "Opportunities for biomass pyrolysis liquids production and upgrading" Energy & Fuels. vol. 6, No. 2, pp. 113-120, 1992
[3] Z. Qi, C. Jie , W. Tiejun and X. Ying. "Review of biomass pyrolysis oil properties and upgrading research". Energy Conversion and Management, vol. 48, pp. 87-92, 2007
[4] M. Ikura, M. Stanciulescu and E. Hogan. "Emulsification of pyrolysis derived bio-oil in diesel fuel". Biomass and Bioenergy. vol. 24, pp. 221- 232, 2003
[5] D. Chiaramontia, et al. "Development of emulsions from biomass pyrolysis liquid and diesel and their use in enginesÔÇöPart 1: emulsion production". Biomass and Bioenergy. vol. 25, pp. 85 - 99, 2003
[6] M. Karabektas and M. Hosoz. "Performance and emission characteristics of a diesel engine using isobutanol-diesel fuel blends". Renewable Energy. Vol. 34, pp. 1554-1559, 2009
[7] V. Stamatov, D. Honnery and J. Soria. "Combustion properties of slow pyrolysis bio-oil produced from indigenous Australian species" Renewable Energy. vol. 31, pp. 2108-2121, 2006
[8] D. Nguyen and D. Honnery. "Combustion of bio-oil ethanol blends at elevated pressure". Fuel. vol. 87, pp. 232-243, 2008
[9] J.P. Diebold. "A review of the chemical and physical mechanisms of the storage stability of fast pyrolysis bio-oils" National Renewable Energy Laboratory. January, 2000, NREL/SR-570-27613
[10] P. Weerachanchai, C. Tangsathitkulchai and M. Tangsathitkulchai. "Fuel properties and chemical compositions of bio-oils from biomass pyrolysis" in 2007 JSAE/SAE International Fuels and Lubricants Meeting. Kyoto, 2007, JSAE 20077087 SAE 2007-01-2024
[11] Y. Sittichaitaweekul. "Fuel properties and the treatment of vegetable oil for the use in a diesel engine". M.S. thesis, Dept. Chem. Eng., Suranaree University of Technology, Nakhon Ratchasrima, Thailand, 2003.
[12] P. Benjumea, J. Agudelo and A. Agudelo. "Basic properties of palm oil biodiesel-diesel blends". Fuel. vol. 87. pp. 2069-2075, 2008
[13] R. M. Joshi, M. J. Pegg. "Flow properties of biodiesel fuel blends at low temperatures". Fuel. vol. 86, pp. 143-151, 2007
[14] B. E. Poling, J. M. Prausnitz, J. P. O-Connell "The properties of gases and liquids", New York: McGraw-Hill, 2001, pp. 9.77-9.79.