Paper details

Title:

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

Author(s):

Yamane, K., Kawasaki, K., Iwai, S.

Document(s):

Abstract:

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.

Keywords:

biofuel, CO₂ capture, cultivation, microalgae, trigeneration

Topic:

Biomass Resources

Subtopic:

Algae Production Systems

Event:

25th European Biomass Conference and Exhibition

Session:

1CO.1.2

Pages:

111 - 115

ISBN:

978-88-89407-17-2

Paper DOI:

10.5071/25thEUBCE2017-1CO.1.2

Price:

FREE