Banca de QUALIFICAÇÃO: VENANCIO VITOR LIMA DA SILVA BEZERRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : VENANCIO VITOR LIMA DA SILVA BEZERRA
DATE: 18/03/2022
TIME: 14:00
LOCAL: LASSOP/CTEC
TITLE:

CATALYTIC PYROLYSIS OF THE SUGARCANE BAGASSE OF SECOND-GENERATION ETHANOL

KEY WORDS:

Lignocellulosic, Catalysis, Adsorption, Kinetics, Chromatography.

PAGES: 83
BIG AREA: Engenharias
AREA: Engenharia Química
SUMMARY:

Second generation ethanol (2G ethanol) is one of the main technological innovations in

the sugar and alcohol sector and also in the state of Alagoas. The use of sugarcane bagasse
to expand alcohol production is surrounded by economic and social advantages, which
also encourages the research and innovation sectors. Even with such a benefit, the
production of 2G Ethanol presents waste generation, which are applied to burning –
responsible for generating electricity from the unit. This residue presents a large amount
of lignin, called Lignocellulosic Residue (RLC), with a chemical structure and vast
industrial and economic applicability in this compound. Due to this resource, the RLC is
attributed to the process of degradation by heating, called Pyrolysis. This process is based
on biomass as the main generator of solid, liquid and gaseous products, which are
evaluated various quantitative and qualitative requirements. Aiming at higher quantitative
yields related to solid (called biochar) and qualitative yields referring to liquid (called
bio-oil), the pyrolysis technique was performed with the addition of NaOH, which acts as
catalyst, being the experiment called Catalytic Pyrolysis. One of the main applications
attributed to biochar is the use of biochar in the treatment of effluents. For this, the
viability of the solid for this process is evaluated from the adsorption phenomenon,
through definitions formulated by Langmuir and Freundlich, and also in aspects of
transport rates, referring to adsorption kinetics. Bio-oil evaluation is part of spectroscopic
analyses to quantify the compounds it contains. From this characterization, it is applied
to it, which can be given to any industrial or commercial branch. The experiments were
modeled by means of a Central Compound Design (CCD), using temperature, NaOH
fraction and biomass granulometry as independent variables to evaluate product yields.
The analysis of biomass degradation was performed by thermogravimetric analysis
(TGA). The characterization of the bio-oils generated in the Catalytic Pyrolysis process
was performed by Gas Chromatography by Mass Spectrometry (GC/MS). The biochar
that presented the best yields in the process were used for adsorptive studies of Adsorption
Isotherm, and the biochar that presented better isotherm was used in adsorption kinetics
studies.

BANKING MEMBERS:
Presidente - 1314677 - CARMEM LUCIA DE PAIVA E SILVA ZANTA
Interno - 1121112 - JOAO INACIO SOLETTI
Interno - 1797785 - LUCAS MEILI
Externo à Instituição - MOZART DALTRO BISPO - Tiradentes