Biodiesel production from microalgae: Co-location with sugar mills

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• 作者：Christian Lohrey ; ^{clohrey@agcenter.lsu.edu} ; Vadim Kochergin
• 关键词：Biodiesel ; Microalgae ; Sugarcane
• 刊名：Bioresource Technology
• 出版年：2012
• 期刊代码：11_09608524
• 类别：ce
• 出版时间：March, 2012
• 卷：108
• 期：Complete
• 页码：76-82
• 文件大小：926 K

摘要

Co-location of algae production facilities with cane sugar mills can be a technically advantageous path towards production of biodiesel. Algal biodiesel production was integrated with cane sugar production in the material and energy balance simulation program Sugars鈩? A model was developed that allowed comparison of production scenarios involving dewatering the algae to 20% ds (dry solids) or 30% ds prior to thermal drying. The net energy ratio, E_R (energy produced/energy consumed) of the proposed process was found to be 1.5. A sensitivity analysis showed that this number ranged from 0.9 to 1.7 when the range of values for oil content, CO₂ utilization, oil conversion, and harvest density reported in the literature were evaluated. By utilizing available waste-resources from a 10,000 ton/d cane sugar mill, a 530 ha algae farm can produce 5.8 million L of biodiesel/yr and reduce CO₂ emissions of the mill by 15%without the need for fossil fuels.