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Comparison of properties of biodiesel from microalgal oil and diesel fuel and ASTM biodiesel standard * The data about diesel fuel were taken from published literature as indicated in the text. Table 2

Table 2 Comparison of properties of biodiesel from microalgal oil and diesel fuel and ASTM biodiesel standard * The data about diesel fuel were taken from published literature as indicated in the text. Table 2

Related Figures (5)

Fig. 1. (A) Growth of the cells of C. protothecoides under autotrophic (left, green) and heterotrophic (right, yellow) culture conditions. (B,C) Cells of autotrophic and heterotrophic C. protothecoides under differential interference microscopy. (B) Almost no lipid vesicles were observed in autotrophic C. protothecoides cells. (C) The cells of heterotrophic C. protothecoides were full of lipid vesicles. (For interpretation of the references in colour in this figure legend, the reader is referred to the web version of this article.)
Fig. 1. (A) Growth of the cells of C. protothecoides under autotrophic (left, green) and heterotrophic (right, yellow) culture conditions. (B,C) Cells of autotrophic and heterotrophic C. protothecoides under differential interference microscopy. (B) Almost no lipid vesicles were observed in autotrophic C. protothecoides cells. (C) The cells of heterotrophic C. protothecoides were full of lipid vesicles. (For interpretation of the references in colour in this figure legend, the reader is referred to the web version of this article.)
Contents of the main chemical components of cells of autotrophic (AC) and heterotrophic (HC) C. protothecoides
Contents of the main chemical components of cells of autotrophic (AC) and heterotrophic (HC) C. protothecoides
Fig. 2. The influence of catalyst quantity and temperature on the yield (A) and the specific gravity (B) of biodiesel product. Reaction conditions: 30:1 molar ratio of methanol to oil, 160 rpm, 5h of reaction time. Temperature: 30°C, 50°C and 90°C. The catalyst quantity based on oil weight: 25%, 50%, 60% and 100%.
Fig. 2. The influence of catalyst quantity and temperature on the yield (A) and the specific gravity (B) of biodiesel product. Reaction conditions: 30:1 molar ratio of methanol to oil, 160 rpm, 5h of reaction time. Temperature: 30°C, 50°C and 90°C. The catalyst quantity based on oil weight: 25%, 50%, 60% and 100%.
Fig. 3. The yield (A) and the specific gravity (B) of biodiesel product with different molar ratio of methanol to oil. Reaction conditions: 30°C, 160 rpm, 100% catalyst quantity based on oil weight, 7h of reaction time.
Fig. 3. The yield (A) and the specific gravity (B) of biodiesel product with different molar ratio of methanol to oil. Reaction conditions: 30°C, 160 rpm, 100% catalyst quantity based on oil weight, 7h of reaction time.
Fig. 4. The variation of product specific gravity with reaction time under different molar ratio of methanol to oil. Reaction conditions: 30 °C, 160 rpm, 100% catalyst quantity based on oil weight.
Fig. 4. The variation of product specific gravity with reaction time under different molar ratio of methanol to oil. Reaction conditions: 30 °C, 160 rpm, 100% catalyst quantity based on oil weight.
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