Community Research and Development Information Service - CORDIS


It is necessary to understand the fundamental chemical and physical aging mechanisms to learn how to produce a bio-oil that is more stable during shipping and storage. This review provides a basis for this understanding and identifies possible future research paths to produce bio-oils with better storage stability. Included are 108 references.

The literature contains insights into the chemical and physical mechanisms that affect the relative storage stability of bio-oil. Many chemical reactions that normally are thought to require catalysis, proceed quite nicely without the addition of catalysts (or with catalysts indigenous to the bio-oil) during the long reaction times available in storage. The literature was searched for information describing the equilibrium constants and reaction rates of selected aging mechanisms, to determine if they are applicable to the relatively long times involved with storage. The chemical reactions reported to occur in pyrolytic liquids made from biomass are presented. As the bio-oil changes composition during aging, the mutual solubility of the components changes to make phase separation more likely to occur. With these insights into the aging mechanisms, the use of additives to improve storage stability is examined. Comparisons are then made to the storage stability of petroleum fuels. The review is summarised, conclusions are drawn, and recommendations are made for future research to improve the storage stability of bio-oils.

Additional information

Authors: DIEBOLD J P, Thermalchemie, Inc., Lakewood (US)
Bibliographic Reference: A chapter in "Fast Pyrolysis of Biomass: a handbook, Volume 2", CPL Press, 2002, pp.243-292. 95 pounds sterling
Availability: Available from: CPL Press, Liberty House, The Enterprise Centre, New Greenham Park, Newbury, RG19 6HW, UK Tel: +44-1635-817408; Fax: +44-1635-817409 Email: Website:
ISBN: ISBN: 1-872691-47-1
Record Number: 200215485 / Last updated on: 2002-11-07
Original language: en
Available languages: en
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top