Characterization of bio-oil and its sub-fractions from pyrolysis of Scenedesmus dimorphus |
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| Affiliation: | 1. Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India;2. Combustion Engine and Energy Conversion Laboratory, School of Mechanical Engineering, College of Engineering, Hanyang University, Seoul 133-791, Republic of Korea;1. Biotechnology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, Kerala, India;2. Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST, Thiruvananthapuram 695019, Kerala, India |
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| Abstract: | In the present study, microalgae Scenedesmus dimorphus was reported for pyrolysis in a fixed-bed reactor to determine the effects of temperature on products yield and the chemical compositions of the liquid and solid products. Experiments were carried out at a temperature range of 300–600 °C with heating rate of 40 °C/min and nitrogen flow rate of 100 ml/min. The yield of bio-oil was found to be maximum (39.6%) at the temperature of 500 °C and was further fractionated into n-hexane, toluene, ethyl acetate and methanol sub-fractions by using liquid column chromatography. Various characteristics of bio-oil and its sub-fractions were determined by 1H NMR, FTIR and GC–MS. The biochar produced as a co-product can be a potential soil amendment with multiple benefits including soil fertility and C-sequestration. The present investigation suggests the suitability of Scenedesmus dimorphus as a potential feedstock for exploitation of energy and biomaterials through pyrolytic conversion. |
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| Keywords: | Microalgae Pyrolysis Bio-oil |
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