NOGUEIRA, J. C. A.; NOGUEIRA, JOCIELE CRISTINE ALVES.; Alves Nogueita, J. C.; http://lattes.cnpq.br/6528379977041853; NOGUEIRA, Jociele Cristine Alves.
Resumen:
The use of fossil fuels has been a predominant source of energy since the Industrial
Revolution, promoting global economic and industrial growth. However, the depletion of
these resources and the associated environmental impacts are driving the search for more
sustainable alternatives. In this context, lignocellulosic biomass emerges as a promising
option due to its availability, renewability, high energy efficiency and low economic value. In
general, lignocellulosic biomass is a complex mixture of natural polymers found mainly in the
cell walls of plants, mostly formed by cellulose, hemicellulose, lignin and small amounts of
extractives and minerals. This plant matter comes from photosynthesis, a process that
converts solar energy into chemical energy. Therefore, when subjected to thermochemical
transformation processes, the bonds between carbon, hydrogen and oxygen in biomass are
broken, releasing previously stored chemical energy. This makes it possible to convert
biomass into solid, gaseous and/or liquid fuels. The main purpose of converting biomass is to
transform it into an economically viable product that can be used to replace non-renewable
energy sources. In this work, an analysis was carried out with the seed and bark
lignocellulosic biomasses of Passiflora edulis sims to determine the activation energy (Ea
)
involved in the thermal degradation of these materials and the influence of the catalysts
Al-MCM-41 and La-MCM-41 in determining this parameter using the Arrhenius equation as
a basis for this feat. Based on the results obtained, the studied catalysts are not suitable for the
degradation of passion fruit peel biomass as they increase the activation energy involved in
the process, while for seed degradation they make a significant contribution to reducing this
energy.