Banca de QUALIFICAÇÃO: HERBERT SENZANO LOPES

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : HERBERT SENZANO LOPES
DATE: 20/12/2019
TIME: 08:30
LOCAL: Sala de Aula do NUPEG
TITLE:

Development of a simulator using Visual Basic for Applications for photocatalitic processes of transformation

KEY WORDS:

simulator in vba, photocatalytic reaction, process analysis, chemical oxidation, methane photoreform.

PAGES: 90
BIG AREA: Engenharias
AREA: Engenharia Química
SUMMARY:

The main goal of this doctoral dissertation work was to apply the Excel® spreadsheet tool in the development of photocatalytic transformation process simulators. Toluene photodegradation and methane photoreform were the study cases evaluated for the process simulator. The Visual Basic for Applications (VBA) programming language has been applied to numerical methods and the generation of graphs and an user-friendly interface. The accessibility of Microsoft® programs is also noteworthy, making it more available tool for solving process engineering problems. A model system of the literature describing the kinetics of the catalytic oxidation reaction of toluene was simulated. The concentration profile of the contaminant (toluene) was obtained as a function of the position in the reactor and also of the input data. In explanation, the system and reaction information can be changed to allow the analysis of different reactor dimensions, flow rates, initial concentrations, reaction rates and catalyst characterization parameters. The photocatalysis study was also performed considering a photoreform between methane and water vapor for methanol production. The catalyst is in a fixed bed and accessible to radiation. The simulation was performed considering the model as one-dimensional and steady state. The obtained results were satisfactory for the methane conversion velocity, as well as photoreactor dimension values. For the initial operating conditions the photoreactor length values were 20 cm and radius of 4 cm. The results showed that the developed tool allows the simulation and analysis of the photocatalytic reactions of the systems in relation to the most significant variables and parameters of the process under study.

BANKING MEMBERS:
Interno - 349801 - CARLSON PEREIRA DE SOUZA
Interno - 1149554 - OSVALDO CHIAVONE FILHO
Externa ao Programa - 1224101 - VANJA MARIA DE FRANCA BEZERRA