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Primary interactions between cellulose and lignin during fast pyrolysis of lignocellulosic biomass

Villavicencio Arzola, P.O. (2020) Primary interactions between cellulose and lignin during fast pyrolysis of lignocellulosic biomass.

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Abstract:In order to overcome the current necessity for the replacement of fossil resources, fast pyrolysis has emerged as a promising technology for the efficient use of biomass as a valuable and sustainable resource. The purpose of this study is to advance on the understanding of the fast pyrolysis of lignocellulose, specifically in whether there is an interaction between two of the main lignocellulose components, cellulose and lignin. To do so, a fully operational screen-heater reactor developed in the SPT group has been used to process samples prepared with blends of cellulose with extracted lignin and cellulose impregnated with potassium (1, 100, 1000, 10000 ppm) with lignin. The results indicated that the presence of lignin could have enhanced the levoglucosan yield in the produced oil, but no effect was observed on the glucose recovery from the oil samples. In addition, native samples of lignocellulose with different lignin content are tested, in order to analyze the influence of this component in the pyrolysis product composition. An interesting trend was found, indicating that both yields of levoglucosan and glucose recovery increased as the lignin content in the samples also did. Finally, a state-of-the-art of fast pyrolysis of biomass towards bio-oil applications for heat and power generation, and as a potential source for platform chemicals are explained; as well as the possible contributions of this study for its further development are addressed.
Item Type:Essay (Master)
Faculty:TNW: Science and Technology
Subject:35 chemistry, 43 environmental science, 58 process technology
Programme:Sustainable Energy Technology MSc (60443)
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