Abstract: Pyrolysis-gas chromatographic mass spectrometry (Py-GC/MS) was used to determine the yield and chemical composition of the pyrolysis products of Schizochytrium limacinum. The pyrolysis was carried out by varying the temperature from 300 °C to 800 °C. It was found that the main decomposition temperature of Schizochytrium limacinum was 428.16 °C, at which up to 66.5% of the mass was lost. A further 18.7% mass loss then occurred in a relatively slow pace until 760.2 °C due to complete decomposition of the ash content of Schizochytrium limacinum. The pyrolysis of Schizochytrium limacinum at 700 °C produced the maximum yield (67.7%) of pyrolysis products compared to 61.2% at 400 °C. While pollutants released at 700 °C (12.3%) was much higher than that of 400 °C (2.1%). Higher temperature will lead to more pollutant (nitrogen compounds and PAHs) release, which is harmful to the environment. Considering the reasonably high yield and minimum release of pollutants, a lower pyrolysis temperature (400 °C) was found to be optimum for producing biofuel from Schizochytrium limacinum.
Keywords: Schizochytrium limacinum; microalgae; pyrolysis products; yield; real-time determination
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Li, G.; Zhou, Y.; Ji, F.; Liu, Y.; Adhikari, B.; Tian, L.; Ma, Z.; Dong, R. Yield and Characteristics of Pyrolysis Products Obtained from Schizochytrium limacinum under Different Temperature Regimes. Energies 2013, 6, 3339-3352.
Li G, Zhou Y, Ji F, Liu Y, Adhikari B, Tian L, Ma Z, Dong R. Yield and Characteristics of Pyrolysis Products Obtained from Schizochytrium limacinum under Different Temperature Regimes. Energies. 2013; 6(7):3339-3352.
Li, Gang; Zhou, Yuguang; Ji, Fang; Liu, Ying; Adhikari, Benu; Tian, Li; Ma, Zonghu; Dong, Renjie. 2013. "Yield and Characteristics of Pyrolysis Products Obtained from Schizochytrium limacinum under Different Temperature Regimes." Energies 6, no. 7: 3339-3352.