TITLE:
Physicochemical Properties of Pyrolysis Bio-Oil from Sugarcane Straw and Sugarcane in Natura
AUTHORS:
Josilaine A. C. Durange, Margareth R. L. Santos, Marcelo M. Pereira, Luiz A. P. Fernandes Jr., Marcio N. Souza, Anderson N. Mendes, Liena M. Mesa, Caio G. Sánchez, Elisabete M. S. Sanchez, Juan M. M. Pérez, Nakédia M. F. Carvalho
KEYWORDS:
Sugarcane; Pyrolysis; Bio-Oil Characterization
JOURNAL NAME:
Journal of Biomaterials and Nanobiotechnology,
Vol.4 No.2A,
April
17,
2013
ABSTRACT: Under the renewable energy context,
sugarcane biomass pyrolysis has been growing as a convenient route to produce
bio-oil, which can be set into the chemical industry and refineries as building
blocks or combustion fuel. In this work sugarcane straw was submitted to direct
pyrolysis in a fluidized bed pilot plant at 500°C, in presence of air.
Sugarcane in natura was also
pyrolysed as a model for comparison, in order to determine the viability of
processing different sources of raw biomass. The physicochemical
characterization of the biomass precursors as well as of the bio-oils was also
carried out, which points both biomass feedstocks as suitable for bio-oil
production in terms of viscosity, surface tension, density and acidity. The
bio-oil obtained from sugarcane in natura presented higher carbon and hydrogen content as well as lower oxygen content.
On the other hand, the metal content is higher in the bio-oil obtained from
sugarcane straw, in
special the iron and potassium contents were 807 ppm and 123 ppm against 27 ppm
and 1 ppm in the bio-oil from sugarcane in
natura. Aliphatic and aromatic compounds as well as carbohydrates scaffolds
were identified as the main components of the bio-oil. GC-MS analyses showed
aromatic products from lignine fragmentation and free sugars and sugar
derivatives.