The objective of this research was

The objective of this research was to improve the cold-flow property of biodiesel (fatty acid methyl ester, FAME) made from corn oil by urea complexation. Effects of processing conditions on the yield of low-melting-point biodiesel and its fatty acid composition were investigated. The optimal conditions were as follows: 50 °C stirring temperature, 40 min stirring time, 1:1 (w/w) ratio of urea to FAME, 5:1 (v/w) ratio of methanol to FAME, 20 °C crystallization temperature, and 2 h crystallization time. Under these conditions, the maximum yield of non-urea complexes with a melting temperature range from −52 to −45 °C was 53%, and the fatty acid profiles of non-urea complexes were 0.3% palmitic acid, 23.7% oleic acid, 75.1% linoleic acid, and 0.9% linolenic acid. Results also showed that oxystearin was helpful in further improving the cold-flow property of low-melting-point biodiesel.

ผลลัพธ์ (อังกฤษ) 3:

The objective of this research was to improve the cold-flow property of biodiesel (fatty acid methyl ester FAME), made. From corn oil by urea complexation. Effects of processing conditions on the yield of low-melting-point biodiesel and its. Fatty acid composition were investigated. The optimal conditions were as follows: 50 ° C stirring temperature 40 min, stirring. Time, the 1:1 (w / W) ratio of urea, to FAME 5: 1 (V / W) ratio of methanol, to FAME 20 ° C, crystallization temperature and 2 h crystallization. Time. Under these conditions the maximum, yield of non-urea complexes with a melting temperature range from − 52 to − 45 ° C. Was 53% and the, fatty acid profiles of non-urea complexes were 0.3% palmitic acid 23.7% oleic, acid 75.1% linoleic acid,,, And 0.9% linolenic acid.Results also showed that oxystearin was helpful in further improving the cold-flow property of low-melting-point biodiesel.