Co-production of biodiesel and activated carbon from rubber seed
2015
Guan, Guoqing | Uemura, Yoshimitsu | Suzana Yusup | Michida, Wataru | Kawano, Yoshitsugu | Ezaki, Masato | Kusakabe, Katsuki | Akiyoshi, Kouta | Yamada, Yusuke
A co-production process of biodiesel and activated carbon from rubber seed was proposed. Biodiesel was synthesized by in-situ transesterification of the oil extracted from rubber seed in n-hexane. Although the rubber seed contained a large amount of free fatty acids (FFA), the fatty acid methyl ester (FAME) yield reached 98 % after 15 min-reaction due to the low extraction of FFA from the rubber seed in n-hexane. Co-carbonization of the rubber seed residue after the in-situ transesterification and the crude glycerin containing KOH improved the pore properties of activated carbon product, such as BET surface area and pore volume. As a result, the resulting activated carbon indicated methylene blue adsorption ability.
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