초록 |
Sequestration of Carbon dioxide (CO2) from industrial flue gas has recently been considered to be another issue for district heating and cooling system. Among the various CCU systems, photoautotrophic mass cultivation of microalgae is the most promising strategy for reducing CO2 from an relatively clean flue gas with the production of high value compounds including colorants, cosmetics, health-functional materials, and pharmaceuticals. Herein, we propose a cost-effective and energy-efficient CCU process using the unicellular green microalga, Haematococcus pluvialis, which is considered as the richest source of natural astaxanthin, the highest value ketocarotenoid. In the present system, natural solar radiation and hot water that has been heated without consuming any electric power were also used to improve the economic feasibility of CO2 capture from the flue gas using microalgae. |