Biodiesel Oxidation Induction Periods by PDSC
Abstract
This report summarizes experiments with oxidatively reactive methyl soyate biodiesel fuels obtained from different suppliers using different manufacturing processes. Two modified test methods, ASTM E 2009, Standard Test Method for Oxidation Onset Temperature of Hydrocarbons by Differential Scanning Calorimetry, and ASTM D 6186, Standard Test Method for Oxidation Induction Time of Lubricating Oils by Pressure Differential Scanning Calorimetry (PDSC), were employed as rapid tests to correlate to a series of biodiesel samples having a range of stability. Three antioxidants were evaluated for effectiveness and blends of biodiesel in diesel fuel were evaluated using PDSC. The antioxidants were Butylated Hydroxy Toluene (BHT) at 240mg/L,Tertiary Butyl Hydroxy Quinone (TBHQ) at 240mg/L, and Tenox 21 at 1000mg/L. Advantages of the ASTM E 2009 method are demonstrated by the ability to get onset temperatures for the biodiesels as well as blends with diesel and the neat diesel and rank the antioxidant effectiveness.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 13, 2005
- Accession Number
- ADA431465
Entities
People
- Kathryn Kline
- Leo L. Stavinoha