Economic evaluation of algae biodiesel based on meta-analyses
Economic evaluation of algae biodiesel based on meta-analyses
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基于荟萃分析的藻类生物柴油经济评价
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
L. Colosi
中科院分区：
文献类型：
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作者：
Yongli Zhang;X. Liu;Mark A. White;L. Colosi
本研究的目的是通过对先前发表的五种生产藻类生物柴油系统的经济评估进行荟萃分析，阐明大规模藻类能源系统的经济可行性。利用财务和技术假设，将原始研究的数据统一到一个标准化框架中。结果表明，在基本情况下，藻类生物柴油的售价为5.00-10.31美元/加仑，高于选定的基准：石油柴油为3.77美元/加仑，传统植物油或动物脂肪制成的商业生物柴油（B100）为4.21美元/加仑。然而，藻类生物柴油的预计销售价格（2.76-4.92美元/加仑），在预期的改进之后，将具有竞争力。基于情景的敏感性分析表明，藻类生物柴油价格对藻类生物量生产力、藻类含油量和藻类养殖成本最为敏感。这表明，提高藻类原料的产量、质量和成本可能是使藻类生物柴油在经济上可行的关键因素。
ABSTRACT The objective of this study is to elucidate the economic viability of algae-to-energy systems at a large scale, by developing a meta-analysis of five previously published economic evaluations of systems producing algae biodiesel. Data from original studies were harmonised into a standardised framework using financial and technical assumptions. Results suggest that the selling price of algae biodiesel under the base case would be $5.00–10.31/gal, higher than the selected benchmarks: $3.77/gal for petroleum diesel, and $4.21/gal for commercial biodiesel (B100) from conventional vegetable oil or animal fat. However, the projected selling price of algal biodiesel ($2.76–4.92/gal), following anticipated improvements, would be competitive. A scenario-based sensitivity analysis reveals that the price of algae biodiesel is most sensitive to algae biomass productivity, algae oil content, and algae cultivation cost. This indicates that the improvements in the yield, quality, and cost of algae feedstock could be the key factors to make algae-derived biodiesel economically viable.