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United States Department of Agriculture

Agricultural Research Service

Title: Low-Temperature Flow Properties of Biodiesel/jet Fuel (Biojet) Blends

Author
item Dunn, Robert

Submitted to: Annual Meeting and Expo of the American Oil Chemists' Society
Publication Type: Abstract Only
Publication Acceptance Date: May 16, 2001
Publication Date: May 16, 2001
Citation: DUNN, R.O. LOW-TEMPERATURE FLOW PROPERTIES OF BIODIESEL/JET FUEL (BIOJET) BLENDS. ANNUAL MEETING AND EXPO OF THE AMERICAN OIL CHEMISTS' SOCIETY. 2001.

Technical Abstract: Biodiesel (that is, mono-alkyl esters of fatty acids derived from vegetable oils) has potential for application as an environmentally friendly fuel extender in blends with jet fuel. Biodiesel is known to reduce harmful exhaust emissions when employed as an extender for petroleum middle distillate fuels (conventional diesel fuel). Biodiesel is also known to increase cloud point and other significant cold flow parameters in blends with conventional diesel fuels. This work examines effects of blending soybean oil fatty acid methyl esters (SME) on the freezing point (TF) of JP-8 jet fuel. Results indicate that at blend ratios of 0.10 vol. frac. SME, TF increases by approximately 25C and that formulation of blends with TF below -30C may not be feasible. Treatment of SME with cold flow improvers reduces TF by only 6-7C. BioJet blends with winterized SME showed the most improved TF, which were reduced to -35 to -39C. Thus, formulation of BioJet blends with improved cold flow properties is possible with adequate pre-blended treatment of the biodiesel.

Last Modified: 12/19/2014
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