1986-10-01

On the Thermal Decomposition and Residue Formation of Plant Oils 861582

Plant oils are considered viable replacement fuels for diesel engines. However, in order to become successful diesel fuel substitutes, problems associated with the formation of lacquer and carbon deposits on engine components must be resolved, else truly long-term engine reliability will not be possible.
This paper reports some basic experiments into the formation of residues due to liquid phase reactions of a number of plant oils as a function of temperature.
Heating tests on suspended drops of sunflower, corn, olive, and safflower oils were performed. Residue deposits were measured. For a heating air temperature of approximately 300°C, roughly 50% of the original oil drop mass remained as residue. This amount rapidly decreased as the air temperature was increased. Above approximately 500°C small amounts of residue formed which burned off shortly after formation. A methyl ester of sunflower oil also tested formed substantially less residue than any of the neat plant oils.
The test results are discussed with regard to possible implications for diesel engines operating on such oils.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Comparative Analysis of Plant Oil Based Fuels

952061

View Details

TECHNICAL PAPER

Performance of Vegetable Oils and their Monoesters as Fuels for Diesel Engines

831358

View Details

TECHNICAL PAPER

Design Modifications for Durability Improvements of Diesel Engines Operating on Plant Oil Fuels

921630

View Details

X