The specific gravity of biodiesel and its blends with diesel fuel


Tat M. E. , Van Gerpen J.

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, vol.77, no.2, pp.115-119, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 77 Issue: 2
  • Publication Date: 2000
  • Doi Number: 10.1007/s11746-000-0019-3
  • Journal Name: JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.115-119
  • Keywords: biodiesel, density, diesel fuel, methyl esters, specific gravity
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

The specific gravities of biodiesel and 75, 50, and 20% blends with No. 1 and No. 2 diesel fuels were measured as a function of temperature from the onset of crystallization to 100 degrees C. The results indicate that biodiesel and its blends demonstrate temperature-dependent behavior that is qualitatively similar to the diesel fuels. The temperature dependence of the specific gravity for biodiesel and its blends was compared with the ASTM D 1250-80 procedure for the temperature correction of hydrocarbon fuels, and the procedure was found to provide accurate corrections. A blending equation was developed that allows the specific gravity of blends to be calculated from the specific gravities of the biodiesel and diesel fuels.