Chlorella sorokiniana thermogravimetric analysis and combustion characteristic indexes estimation View Full Text


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Article Info

DATE

2017-10-09

AUTHORS

Sergio Paniagua, Luis Fernando Calvo, Carla Escapa, Ricardo N. Coimbra, Marta Otero, Ana I. García

ABSTRACT

This work aimed to investigate thermal decomposition of microalgae throughout the different culture stages. For this purpose, Chlorella sorokiniana was cultured in photobioreactors, and microalgae biomass was sampled at different days throughout the development of the culture. The aim was to analyze the energetic value of this biomass by thermogravimetric analysis as well as to calculate combustion characteristic indexes during the different culture stages. In all cases, thermal decomposition of microalgae biomass during combustion denoted two stages. The first one encompassed the carbohydrates and proteins decomposition and the breakdown of hydrocarbon chains of fatty acids, whereas the second step was closely related to the combustion of the formed char. Fuel composition analysis denoted a microalgae HHV value quite similar to that of Poplar (considered as an energy crop) biomass and slightly higher than published values for herbaceous biomass. In relation with the culture stages, a better combustion performance was found (higher thermal indexes as well as higher DTGmax values) for microalgae biomass sampled at days 19 and 21. These results point to the importance of the culture stage for the thermal valorization of microalgae biomass. More... »

PAGES

3139-3149

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10973-017-6734-1

DOI

http://dx.doi.org/10.1007/s10973-017-6734-1

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1092141436


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