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首页> 美国卫生研究院文献>BioMed Research International >Direct Biodiesel Production from Wet Microalgae Biomass of Chlorella pyrenoidosa through In Situ Transesterification
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Direct Biodiesel Production from Wet Microalgae Biomass of Chlorella pyrenoidosa through In Situ Transesterification

机译：通过原位酯交换反应从小球藻的湿微藻生物量直接生产生物柴油

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A one-step process was applied to directly converting wet oil-bearing microalgae biomass of Chlorella pyrenoidosa containing about 90% of water into biodiesel. In order to investigate the effects of water content on biodiesel production, distilled water was added to dried microalgae biomass to form wet biomass used to produce biodiesel. The results showed that at lower temperature of 90°C, water had a negative effect on biodiesel production. The biodiesel yield decreased from 91.4% to 10.3% as water content increased from 0% to 90%. Higher temperature could compensate the negative effect. When temperature reached 150°C, there was no negative effect, and biodiesel yield was over 100%. Based on the above research, wet microalgae biomass was directly applied to biodiesel production, and the optimal conditions were investigated. Under the optimal conditions of 100 mg dry weight equivalent wet microalgae biomass, 4 mL methanol, 8 mL n-hexane, 0.5 M H2SO4, 120°C, and 180 min reaction time, the biodiesel yield reached as high as 92.5% and the FAME content was 93.2%. The results suggested that biodiesel could be effectively produced directly from wet microalgae biomass and this effort may offer the benefits of energy requirements for biodiesel production.
机译：一步法应用于将含水率约90％的小球藻小球藻的含油微藻生物质直接转化为生物柴油。为了研究含水量对生物柴油生产的影响，将蒸馏水添加到干燥的微藻生物质中以形成用于生产生物柴油的湿生物质。结果表明，在90°C的较低温度下，水对生物柴油的生产具有负面影响。随着水含量从0％增加到90％，生物柴油产率从91.4％降低到10.3％。较高的温度可以弥补不利影响。当温度达到150℃时，没有负面影响，并且生物柴油产率超过100％。在以上研究的基础上，将湿法微藻生物质直接应用于生物柴油生产，并研究了最佳条件。在100μg干重当量湿微藻生物质，4μmL甲醇，8μmL正己烷，0.5μMH2SO4、120°C和180μmin反应时间的最佳条件下，生物柴油收率高达92.5％，且FAME含量为93.2％。结果表明，可以直接从湿微藻类生物质直接有效地生产生物柴油，这一努力可能为生物柴油生产提供能源需求的好处。

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