Microalgal production — A close look at the economics |
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| Authors: | Niels-Henrik Norsker,Maria J. BarbosaMarian H. Vermuë ,René H. Wijffels |
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| Affiliation: | a Bioprocess Engineering, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlandsb Food and Biobased Research, Bornse Weilanden 9, 6708 WG, Wageningen, The Netherlands |
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| Abstract: | Worldwide, microalgal biofuel production is being investigated. It is strongly debated which type of production technology is the most adequate. Microalgal biomass production costs were calculated for 3 different micro algal production systems operating at commercial scale today: open ponds, horizontal tubular photobioreactors and flat panel photobioreactors. For the 3 systems, resulting biomass production costs including dewatering, were 4.95, 4.15 and 5.96 € per kg, respectively. The important cost factors are irradiation conditions, mixing, photosynthetic efficiency of systems, medium- and carbon dioxide costs. Optimizing production with respect to these factors, a price of € 0.68 per kg resulted. At this cost level microalgae become a promising feedstock for biodiesel and bulk chemicals.SummaryPhotobioreactors may become attractive for microalgal biofuel production. |
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| Keywords: | Microalgae Photobioreactor Raceway Tubular Flat panel Cost Energy Biofuel |
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