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Co-pyrolysis of phumdi and para grass biomass from Loktak Lake

Awasthi, Ayushi, Singh, Gaje, Dhyani, Vaibhav, Kumar, Jitendra, Reddy, Yenumula Sudhakara, Adarsh, V.P., Puthiyamadam, Anoop, Mullepureddy, Kiran Kumar, Sukumaran, Rajeev K., Ummalyma, Sabeela Beevi, Sahoo, Dinabandhu, Bhaskar, Thallada
Bioresource technology 2019 v.285 pp. 121308
Fourier transform infrared spectroscopy, Urochloa mutica, biochar, biofuels, biomass, gas chromatography-mass spectrometry, lakes, nuclear magnetic resonance spectroscopy, phenol, pyrolysis, synergism, temperature
In the present work, the pyrolysis of para grass (PG) and phumdi (PH) biomass samples was conducted in the temperature range of 300–500 °C to obtain the optimum temperature for obtaining the maximum yield of bio-oil. Further, co-pyrolysis experiments of PH and PG were also conducted at the same optimized temperature and varied compositions to investigate the synergistic effect. It was observed during the co-pyrolysis, that the maximum bio-oil yield of 37.80 wt% was obtained at the mass ratio of 1:1. The GC–MS, FT-IR and 1H NMR analysis revealed that the bio-oils produced from all the processes were rich in functionalities. Phenolic compounds such as 2-methoxy-4-vinyl phenol, phenol, 2-methoxy, phenol 4-ethyl constituted a significant portion of bio-oils. The biochars obtained at the optimum pyrolytic conditions were analyzed by FT-IR and TOC analyzer.