Use of Banana Tree Residues as Pulp for Paper and Combustible | Chapter 11 | Theory and Applications of Physical Science Vol. 2
The aim of this work is to characterize
banana tree residues and use it in pulping and combustion processes. The soda-anthraquinone
pulping of the banana tree residues can be simulated by polynomial models, and
then predict the pulp properties (yield, Kappa number, viscosity and
brightness) as a function of operating variables (temperature 160 to 180°C,
time 40 to 60 min and soda concentration 7.5 to 12.5%) with errors less than
20%. Operating under optimal conditions (160°C, 40 min and 7.5% soda), a pulp
with 39.23% yield, 28.59 Kappa number, 48.25% brightness, 1149 ml/g viscosity,
48.0 Nm/g tensile index, 3.80 kN/g burst index and 4.83 mNm2/g tear
index was obtained. On the other hand, heating values (17751 kJ/kg), the flame
temperature (1300 to 2400°C) and dew point temperature (48 to 54°C), of the
different values of excess air used (10 to 50%) in combustion of the banana
tree residues were determined and compared with other non-wood lignocellulosic
materials. As a consequence, the price of energy obtained by combustion of
these residues (3.38 10-6 €/kJ) was less than the price of coal
(25.94 10-6 €/kJ) and much lower than those of fluid fossil fuels
(>37.67 10-6 €/kJ).
Author(s) Details
A. Rosal
Department of Molecular
Biology and Biochemical Engineering, University Pablo of Olavide, Sevilla, Spain.
Juan D. Delgado
Department of Physics,
Chemical and Natural Systems, University Pablo of Olavide, Sevilla, Spain.
Z. González
Institute of Ceramics and
Glass (CSIC), Campus de Cantoblanco, Madrid, Spain.
E. Espinosa
Department Chemical
Engineering, Universidad de Córdoba, Córdoba, Spain.
I. Bascón-Villegas
Department Chemical
Engineering, Universidad de Córdoba, Córdoba, Spain.
A. Rodríguez
Department Chemical Engineering,
Universidad de Córdoba, Córdoba, Spain.
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