Utilization of carbon dioxide from post-combustion capture on the microalgae cultivation
| Autor: | Yu-Ling Tseng, 曾毓翎 |
|---|---|
| Rok vydání: | 2013 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 101 The purposes of this study. First, to obtain the optimal algae growth curve conditions, which contains the algal species selection and the design of the reactor, in algae species we choose to use a higher amount of oil containing and applies to higher acidity and high CO2 concentration in the flue gas environment to operate, and designed a photobioreactor for the cultivation of algae, and thus began preliminary cultured in order to obtain the best growth curve conditions. Second, to evaluate the CO2 utilization with microalages, including the effect of different CO2 concentration simulated flue gas environment microalgae culture growth curve. Biomass fuel, improve air quality and reduce greenhouse gas effect, therefore producing bio-energy has become the attention of the world. The Chlorella sp. have the maximum density and specific growth rate were 235 mg / L and 0.077 d-1 at pH6, and grown in temperature 25 oC, we can get the maximum density and specific growth rate was 1006 mg / L and 0.102 d-1. Flue gas CO2 concentration of about 14%, and Chlorella sp. was cultivated in the 20 to 30% CO2 environment. A maximum algal density of 1070 mg/L, total growth of about 76.3 ± 14 mg/L/day, the maximum growth is about 309 mg/L/day, the specific growth rate of about 0.17 d-1; Actual field operation, the algae in the logarithmic growth could reach 122 g/L/Day, and average CO2 utilization was 93.9±2.76%. The Chlorella sp. carbon fixation in the first column was 188.6 t/m3/years, and the total carbon fixation rate reached 52.9 t/m3/years. This Chlorella sp. can be used in order to estimate the flue gas back to the culture environment and recycling CO2. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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