期刊
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
卷 40, 期 -, 页码 760-778出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2014.07.104
关键词
Microalgae; Cultivation; Heterotrophic; Autotrophic; Harvesting; Lipids extraction; Biodiesel
资金
- COMSATS Institute of Information Technology, Pakistan [16-13/CRGP/CIIT/ABT/09]
- Advanced Biomass R&D Center (ABC) Korea [ABC-2012053875]
- Ministry of Education, Science and Technology
- New and Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant - Korea government Ministry of Knowledge Economy [2012T100201665]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20123010090010] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Excessive uses of fossil fuels and environmental degradation have forced the scientists to find alternative and clean sources of energy. Biofuels are considered as potential alternatives as they are green in nature and are sustainable energy sources. Biodiesel is one of the most commonly used biofuel due to its fuel characteristics. Several feedstocks can be used to produce biodiesel. However, in recent years, microalgae have emerged as potential biodiesel feedstocks. Microalgae offer advantages over conventional feedstocks. Microalgae have ability to fix atmospheric CO2 and convert it into sugars, which are then converted into fuel after biochemical processing. Microalgae have high growth rate and accumulate lipids up to 70% in their cell body. They demand less water and nutrients for their growth as compared to terrestrial crops. Despite these advantages, the scale-up applications of microalgae biofuels have some technical limitations. In this study, we have reviewed the overall process of biofuels production from microalgae with a particular emphasis on biodiesel. Critical factors affecting the biodiesel production process including species isolation, species selection, cultivation, harvesting, and oil extraction are discussed. Current research, barriers and developments concerned to each step of biodiesel production process are summarized. New ideas are proposed to improve the growth rate, lipid contents and harvesting efficiency of microalgae. To assess the economic viability of microalgae oil, an economical analysis is presented. Future research trends are also discussed. (C) 2014 Elsevier Ltd. All rights reserved.
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