Waste Solid Byproducts of Microalgae Oil Made into Green Energy

Shu Yao Tsai; Bing Fang Hwang; Tsung Chih Wu; Guan Yi Lu; Chun Ping Lin

doi:10.4028/www.scientific.net/AMR.1120-1121.208

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1120-1121Waste Solid Byproducts of Microalgae Oil Made into...

Waste Solid Byproducts of Microalgae Oil Made into Green Energy

Abstract:

Microalgae have rich oil production under full photosynthesis, which reaches over 50 mass%. In addition, microalgae oil contains the prolific cis-4,7,10,13,16,19-docosahexaenoic acid (DHA) that is usually refined for making health food or food additives. This study investigated Aurantiochytrium sp., which is a kind of microalgae, the oil of which is also refined for use in health food or food additives. The solid byproducts of Aurantiochytrium sp. oil are more than 20 mass%, discarded as rubbish. Fortunately, the solid byproducts have been found to contain a large amount of palmitic acid that exceeds more than 67 mass%, but it is difficult to transesterify from the solid byproducts of Aurantiochytrium sp. oil, such as the waste cooking oil or waste engine oil, which contain many impurities. Therefore, the sequences of saponification, reduction reaction, and acid-catalyzed reactions were conducted for the full process of transesterification in this study. Overall, we have successfully obtained more than 92 mass% transesterification rate from the solid byproducts of Aurantiochytrium sp. oil. The solid byproducts are waste turned into gold.

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Periodical:

Advanced Materials Research (Volumes 1120-1121)

Pages:

208-211

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.208

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Online since:

July 2015

Authors:

Shu Yao Tsai, Bing Fang Hwang, Tsung Chih Wu, Guan Yi Lu, Chun Ping Lin*

Keywords:

Aurantiochytrium Sp, Biodiesel, DHA, Microalgae Oil, Palmitic Acid

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* - Corresponding Author

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