Effective conversion of non-edible oil with high free fatty acid into biodiesel by sulphonated carbon catalyst

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• 作者：Folasegun A. Dawodu ; Olubunmi Ayodele ; Jiayu Xin ; Suojiang Zhang ; Dongxia Yan
• 关键词：Biodiesel ; High free fatty acid ; Transesterification ; Esterification ; Sulphonated carbon materials ; Fuel properties
• 刊名：Applied Energy
• 出版年：February, 2014
• 年：2014
• 卷：114
• 期：Complete
• 页码：819-826
• 全文大小：1543 K

文摘

Interest in biodiesel research has increased over the years due to diminishing petroleum reserves but biodiesel has to be derived from non-edible oils in order to avoid the competition with food supply. Here, we report a one step catalytic conversion of non-edible seed oil, Calophyllum inophyllum with free fatty acid of 15% into biodiesel over biomass-derived catalysts. The effective catalysts were prepared by incomplete carbonization of carbon materials under inert atmosphere and then SO₃H groups were introduced to obtain catalysts whose activities are comparable to conventional acid catalysts. At the optimized conditions, high conversion (99%) was achieved. The stability of the catalysts was also investigated.