Journal
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
Volume 23, Issue 2, Pages 241-246Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532012000200008
Keywords
biodiesel; oxidation stability; antioxidant; natural derivatives; Rancimat method
Categories
Funding
- Science and Technology Program [2008C21025]
- Natural Science Foundation of Zhejiang Province, China [Y4080530]
Ask authors/readers for more resources
Five natural derivatives [ferulic acid (FA), lipid-soluble tea polyphenol (LTP), water-soluble tea polyphenol (WTP), sesamol (SE) and caffeic acid (CA)] were evaluated as antioxidative additives for enhancing the oxidation stability of soybean oil based biodiesel (SBO-BD). It was found that WTP, LTP, SE and CA could significantly improve the oxidation stability of SBO-BD. CA displayed the best performance in the concentration range from 500 to 1500 ppm, whereas WTP displayed the highest activeness at a concentration of 2000 ppm. For comparison, the stabilizing effect of three synthetic anti-oxidants [alpha-tocopherol (alpha-T), butylhydroxytoluene (BHT) and butylhydroxyanisol (BHA)] was simultaneously evaluated. The results showed that the effect of some natural additives (WTP, LTP, SE and CA) was better than that of synthetic additives (alpha-T, BHT and BHA) on the oxidation stability of SBO-BD. A possible explanation for the different effects among the tested antioxidants was given based on their molecular structures.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available