Investigation of Lubricity Characteristics of Biodiesel in Petroleum and Synt…

The lubricity of ultra-low sulfur diesel (ULSD) and synthetic fuel (S8) blended with different levels of cotton seed oil, soybean oil, or poultry fat based biodiesel was evaluated using a high-frequency reciprocating rig (HFRR). The lubricity of ULSD and S8 blends increases sharply as the biodiesel blending level increases and then levels off at ∼2 vol %. The effects of individual minor comp…