Banca de DEFESA: GLÓRIA LOUINE VITAL DA COSTA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GLÓRIA LOUINE VITAL DA COSTA
DATE: 30/08/2024
TIME: 09:00
LOCAL: Auditório do Nupeg
TITLE:

POLYMER MEMBRANES IN INTENSIFICATION OF BIODIESEL SEPARATION PROCESS

KEY WORDS:

biofuels, separation processes, ultrafiltration, polyvinylidene fluoride, hollow fiber.

PAGES: 79
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Operações Industriais e Equipamentos para Engenharia Química
SPECIALTY: Operações de Separação e Mistura
SUMMARY:

Considering the alternative sources of biofuels available, biodiesel production has a prominent place in postmodern society. Industrially, transesterification is the most used reaction to obtain biodiesel, obtaining fatty acid esters (biodiesel) and glycerol, as products. Due to the presence of glycerol, additional purification processes are necessary, which cause an increase in costs and production time for the final purified biodiesel, in addition to generating large volumes of effluents. Thus, problems associated with conventional biodiesel purification methods resulted in the exploration of new technologies to carry out this stage of the production process. The application of membranes has attracted considerable attention, being a very promising area, for achieving highly qualified biodiesel. The process has high separation efficiency, is environmentally safe, requires little energy expenditure and is operationally simple and flexible. In this context, this work aims to evaluate the applicability of the separation process using polymeric membranes in biodiesel separation stage, through the assembly of a bench system, as well as the formulation of blends that simulate the composition of biodiesel and subsequent separation using membrane technology. The membrane was duly evaluated through hydraulic permeability and solute rejection tests, also being characterized regarding its morphology and hydrophobicity. The developed module was used in separation experiments using blends similar to the composition of biodiesel, making it possible to determine the separation efficiency of the membranes compared to blends of known components and concentration. The results obtained in separating the blends are satisfactory. However, the data is still incomplete. With the completion of the next stage and experimental planning, it will be possible to characterize in more detail, in addition to evaluating the influence of concentration and pressure on the separation of the blends. And finally, determine the feasibility of applying the membrane separation process in biodiesel.

COMMITTEE MEMBERS:
Externo à Instituição - DANIEL SILVEIRA LIRA
Externa ao Programa - 2614285 - KESIA KARINA DE OLIVEIRA SOUTO SILVA - UFRNExterna ao Programa - 1218001 - LIANA FRANCO PADILHA - UFRNInterna - 3214434 - NATHALIA SARAIVA RIOS
Presidente - 1149554 - OSVALDO CHIAVONE FILHO