Banca de QUALIFICAÇÃO: AMANDA KAROLINE VARELA DE MEDEIROS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : AMANDA KAROLINE VARELA DE MEDEIROS
DATE: 29/10/2025
TIME: 09:00
LOCAL: Virtual
TITLE:

EVALUATION OF MONOETHANOLAMINE/ALIPHATIC ALCOHOLS MIXTURES ON CO2 ABSORPTION IN POS-COMBUSTION SYSTEMS

KEY WORDS:

CO2 capture; MEA; Hybrid solvents; Regeneration; Simulation.

PAGES: 49
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Operações Industriais e Equipamentos para Engenharia Química
SPECIALTY: Operações de Separação e Mistura
SUMMARY:

The intensification of carbon dioxide (CO2) emissions resulting from the use of fossil fuels has led to the development of capture and regeneration technologies that combine efficiency, economic viability, and sustainability. Chemical absorption with monoethanolamine (MEA) is widely used, but has limitations such as high energy consumption in regeneration and solvent degradation. In this context, there is growing interest in the use of hybrid solvents, such as mixtures of MEA with alcohols (ethanol and glycerol), capable of modifying the physicochemical properties of the solution and influencing the overall performance of the process. The present proposal aims to evaluate the efficiency of CO2 capture and regeneration in pure MEA and MEA/alcohol mixtures, investigating parameters such as regenerated fraction, energy consumed, and chemical stability. The analyses will be conducted by simulation in Aspen HYSYS and validated experimentally on a bench, using a bubble column for capture and simple distillation for regeneration. We will perform measurements of pH, viscosity, corrosion, and CO2 load, in addition to FTIR analyses to characterize the solvents, evaluating solutions in which the MEA concentration varies between 1 and 3 M. Based on the results, we expect to identify more efficient and energy-viable formulations, contributing to the optimization of CO2 capture and desorption processes and to the advancement of solutions applicable on an industrial scale.

 

COMMITTEE MEMBERS:
Presidente - 1584174 - DOMINGOS FABIANO DE SANTANA SOUZA
Interno - ***.656.434-** - CARLOS EDUARDO DE ARAÚJO PADILHA - UFRN
Externo à Instituição - PEDRO FELIPE DOS SANTOS