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首页> 外文期刊>Energy Conversion & Management >Cultivation, extraction and optimization of biodiesel production from potential microalgae Euglena sanguinea using eco-friendly natural catalyst
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Cultivation, extraction and optimization of biodiesel production from potential microalgae Euglena sanguinea using eco-friendly natural catalyst

机译：使用生态友好型天然催化剂培育，提取和优化潜在微藻Euglena sanguinea生物柴油的生产

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Algal biofuels have caught worldwide attention, due to the success of first and second generation biofuels on combing environmental concerns in spite of many challenges. Microalgae are the potential and sustainable fuel source with carbon neutrality, where selection of promising strain is crucial for effective biofuel generation. Euglena sanguinea one such robust freshwater species with high lipid productivity was explored on laboratory scale as well as in mass scale in raceway pond. The extracted oil's fatty acid value was only 3.8 mg KOH g(-1) and had 93% triglycerides. Acid value was reduced to similar to 0.3 mg KOH g(-1) by esterification and the optimized parameters obtained were: methanol/oil ratio: 036, H2SO4: 10 vol.%, time: 42 min. In the subsequent transesterification process natural, recoverable and eco-friendly white mussel shell was used. Maximum yield of similar to 98% was obtained at 6 wt.% of calcinated CaO for the reaction time of 80 min at 0.35 methanol/oil ratio. The GC-MS analysis of the algal biodiesel showed the presence of saturated fatty acids: C16:0, C18:0, C22:0, C24:0 and monounsaturated fatty acids C18:1 at appropriate level to provide better oxidation stability and combustion properties to use it for automotive application without any major engine modifications.(C) 2016 Elsevier Ltd. All rights reserved.
机译：尽管第一代和第二代生物燃料克服了许多挑战，但由于在解决环境问题方面取得了成功，藻类生物燃料已引起了全世界的关注。微藻是碳中和的潜在且可持续的燃料来源，在其中选择有希望的菌株对于有效产生生物燃料至关重要。 Euglena sanguinea是一种这样的健壮的淡水物种，具有较高的脂质生产率，已在实验室规模以及在跑道池中进行了大规模研究。提取的油的脂肪酸值仅为3.8 mg KOH g（-1），甘油三酯含量为93％。通过酯化将酸值降低至与0.3 mg KOH g（-1）相似，获得的优化参数为：甲醇/油比：036，H2SO4：10体积％，时间：42分钟。在随后的酯交换过程中，使用了天然，可回收且环保的白色贻贝壳。在0.35甲醇/油比的情况下，在80分钟的反应时间内，经煅烧的CaO含量为6 wt。％时，最大产率接近98％。藻类生物柴油的GC-MS分析表明，存在适当浓度的饱和脂肪酸：C16：0，C18：0，C22：0，C24：0和单不饱和脂肪酸C18：1，以提供更好的氧化稳定性和燃烧性能（C）2016 Elsevier Ltd.保留所有权利。

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