We are seeking to determine the best parameters for pyrolysis of biodiesel industry castor (Ricinus communis) discard aimed to obtaining biochar [1]. Eight samples were prepared in a factorial design 23 using two temperatures i.e. 3000C and 3500C, two heating velocities 50C and 100C min-1 and two period of heating 30 min and 60 min. NMR 13C spectroscopy data of the obtained solid samples were submitted to MCR analysis. The results can be resumed by means of two component mixture. One more carbonized material (Component 1), with aromatic groups presenting some ring condensation. The other estimated component (Component 2) presenting NMR 13C spectra features of oxygenated functions as carboxylic acid. The samples treated at lower temperature presenting the greater percentage of the component 2. Acknowledgements:  CNPq, INCT E&A, DQ/UFPR, Prof. Dr. R. R. Ribeiro. [1]Novotny et al. J. Braz. Chem. Soc., 20(6), 1003-1010, 2009  .

Biochar prepared by pyrolysis of castor oil cake discard from biodiesel industry in Brazil

243rd National Meeting (2012)

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