Ignition Quality of Biodiesel from Cottonseed and Soybean Oil

Abstract:

The thermal analysis has been employed to yield information on the biodiesel ignition quality since the ignition quality influences the combustion and exhaust emissions of the fuels in a compression ignition (CI) engine. The chemical compositions of -10 petrodiesel (-10PD), soybean-based biodiesel (SME) and cottonseed-based biodiesel (CME) are analyzed by gas chromatography-mass spectrometry (GC-MS). Ignition temperature of -10PD, SME and CME is determined by thermogravimetry-differential scanning calorimetry (TG-DSC). The study shows that the biodiesel is mainly composed of fatty acid methyl esters: C14:0–C24:0, C16:1–C22:1, C18:2 and C18:3. Biodiesel ignition quality is better than petrodiesel. The ignition temperature of CME and SME is 207.4 and 213.9 °C respectively. The ignition quality of biodiesel is better with shorter carbon chain lengths and more saturated fatty acid methyl ester (SFAME).

• Periodical: Advanced Materials Research (Volumes 347-353)
• Pages: 2651-2655
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.347-353.2651
• Online since: October 2011
• Authors: Yong Bin Lai, Yin Nan Yuan, Xiu Chen
• Keywords: Bio-Diesel, Ignition Quality, TG-DSC

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