Banca de DEFESA: MAXWELL GOMES DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : MAXWELL GOMES DA SILVA
DATA : 09/03/2018
HORA: 15:00
LOCAL: LABORATÓRIO DE ENERGIA ALTERNATIVA E FENÔMENOS DE TRANSPORTE - LEAFT
TÍTULO:

"Biodiesel production by oleic acid esterification in a bubble reactor: Experimental study and mathematical modeling."

PALAVRAS-CHAVES:

Biodiesel, esterification, bubble reactor, mathematical model.

PÁGINAS: 63
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Química
RESUMO:

Bubble reactors are widely used to carry out gas-liquid and gas-liquid-solid reactions at different operating conditions. This type of reactor is often used in chemical, biochemical and petrochemical industry for conducting processes like chlorination, oxidation and CO₂ removal. A more recent application of bubble reactors is biodiesel production. In this process, superheated alcohol vapor is bubbled through a liquid phase containing triglycerides or free fatty acids. The alcohol, after being transferred to the liquid phase, reacts with the lipid feedstock to form mono alkyl esters (biodiesel) through esterification or transesterification, depending on the amount of free fatty acids and triglycerides in the lipid feedstock. A bubble reactor experimental apparatus was developed and used to conduct oleic acid esterification experiments by using superheated ethanol vapor operated in the semi-batch mode. The effects of gas volumetric flow rate and reaction temperature on fatty acid conversion was evaluated, as well as the bubble size influence on reactor’s performance. Additionally, a mathematical model was developed and implemented in MATLAB to describe the biodiesel production process in a semi-batch bubble reactor. Experimental conversion data were used to estimate the kinetic and mass transfer parameters, as well as to validate the proposed model. The effects of mass transport followed by chemical reaction were evaluated by using the validated model to simulate the process at different operating conditions.

 

MEMBROS DA BANCA:
Externo à Instituição - ANDERSON ALLES DE JESUS - UFRN
Presidente - 1584174 - DOMINGOS FABIANO DE SANTANA SOUZA
Interno - 1547970 - JACKSON ARAUJO DE OLIVEIRA
Externo à Instituição - JUAN ALBERTO CHAVEZ RUIZ - CTGás
Externo ao Programa - 1979301 - RENATA MARTINS BRAGA