Banca de DEFESA: ALCIVAN ALMEIDA EVANGELISTA NETO

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : ALCIVAN ALMEIDA EVANGELISTA NETO
DATA : 19/12/2018
HORA: 08:30
LOCAL: AUDITÓRIO NUPEG
TÍTULO:

Liquid-liquid equilibrium data for biodiesel+alcohol+glycerol systems using chicken fat safflower oil for the production of biofuel. 

PALAVRAS-CHAVES:

biodiesel, chicken fat, liquid-liquid equilibrium, safflower, UNIQUAC

PÁGINAS: 100
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Química
SUBÁREA: Tecnologia Química
ESPECIALIDADE: Óleos
RESUMO:

The great dependence of fossil fuels on the planet generates a need for new energy sources, considering that oil 

is a finite and polluting richness. The environmental part must always be taken into account, since the 

greenhouse effect is a reality. In this context, biofuels are increasingly being asked to meet the population demand. 

Among them, biodiesel stands out because it is less toxic, renewable and biodegradable. Transesterification is the most 

applied method for transforming oils and fats into methyl or ethyl esters, reducing their viscosity and can be used 

as pure fuel or added to diesel. The raw material can be both animal and vegetable. The by-product formed is 

glycerin, causing two phases to be obtained. The liquid-liquid equilibrium can be studied during the production 

process, since the alcohol is miscible in both phases. In this work two raw materials were used to produce biofuel: 

chicken fat provided by the Apodi-RN municipal market and refined safflower oil. Three biodiesel were obtained: 

methyl chicken fat, methyl safflower and safflower ethyl. The ester profiles were detected by gas chromatography. The liquid-liquid equilibrium data were obtained by means of calibration curves of the 

densities as a function of the respective mass fractions for temperatures of 25 °C and 45 °C at ambient 

pressure. Data were validated using the Othmer-Tobias and Hand correlations, with coefficients close to unity. 

The distribution and selectivity coefficients for the three systems were calculated. The UNIQUAC model was 

used to correlate the experimental data, with satisfactory results and with an error always less than 

1.5%.

MEMBROS DA BANCA:
Externo à Instituição - ALESSANDRO ALISSON DE LEMOS ARAÚJO - UFERSA
Presidente - 1308273 - EDUARDO LINS DE BARROS NETO
Interno - 1670497 - HUMBERTO NEVES MAIA DE OLIVEIRA
Externo à Instituição - MARCIONILA DE OLIVEIRA FERREIRA - IFRN
Externo à Instituição - MARIA CARLENISE PAIVA DE ALENCAR MOURA - UFRN
Interno - 1149554 - OSVALDO CHIAVONE FILHO