Micro-Algae Cultivation by Enriched CO2 from Diesel Tri-Generation System with Selective CCS and Direct Biofuel Conversion from Wet Micro-Algae by Super-Heated Methanol Vapor Method
Yamane, K., Kawasaki, K., Iwai, S.
The purpose of this study was to demonstrate mass production of microalgae in greenhouse photo-bioreactors by aeration with enriched CO2 from a diesel engine tri-generation system. The study also demonstrates the capability of algal oil extraction and fuel production processes using a super-heated methanol vapor method with wet microalgal biomass. Approximately 60% of CO2 emitted from the diesel engine was absorbed by the monoethanolamine (MEA) system, and one-third of the absorbed CO2 was recovered. Cultivation was optimal at 2 vol% CO2 for 7.5 hours per day during 2 weeks of the growth phase, after which starvation stress resulting from addition of NaCl and enriched CO2 aeration with 10 vol% CO2 was induced to increase the oil content. The super-heated methanol vapor method enables effective generation of fatty acid methyl esters from wet microalgae.
biofuel, CO2 capture, cultivation, microalgae, trigeneration
Algae Production Systems
25th European Biomass Conference and Exhibition
111 - 115
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