Banca de QUALIFICAÇÃO: ANDREZA DUARTE MEMELLI MENDONÇA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : ANDREZA DUARTE MEMELLI MENDONÇA
DATA : 09/01/2020
HORA: 09:00
LOCAL: Pavilhão da Química, Sala 49
TÍTULO:

Application of coconut fiber (Cocos Nucifera L.) and analysis of granulometry of adsorbents in glycerol purification.

PALAVRAS-CHAVES:

crude glycerin, purification, adsorption, coconut, granulometry

PÁGINAS: 20
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Química
SUBÁREA: Química Analítica
ESPECIALIDADE: Separação
RESUMO:

With the increasing production of biodiesel, also increases the supply of its co-product, glycerol. Crude glycerin has significant economic value and can be applied in drug, cosmetic, food and chemical industries in general. However, its commercial use depends directly on its degree of purity, for this reason its purification becomes so relevant, besides minimize the environmental problems due to its accumulation. There are currently effective processes for glycerol refining, however, these technologies are restricted to large plants, as they require high cost and / or high energy consumption. Therefore, the development of simpler and economical methods is indispensable. In this sense, adsorption, due to its low cost and easy application, stands out as a favorable technique for the removal of glycerol contaminants. Given the above, the objective of this work is to evaluate the purification of crude glycerin obtained from soybean oil transesterification, using coconut shell (Cocos nucifera L.) as adsorbent and comparing with activated charcoal. Initially, glycerol will be pre-purified with phosphoric acid to separate free fatty acids and neutralize catalyst residues. Then, an experimental planning will be carried out to evaluate the efficiency of these adsorbents in glycerol purification and to choose the best purification conditions, analyzing different concentrations and contact time, focusing on the standardization of the granulometry of these materials.

MEMBROS DA BANCA:
Presidente - 2975644 - VANESSA GOMES KELLY ALMEIDA
Externo ao Programa - 2630672 - FLAVIO COUTO CORDEIRO
Externa ao Programa - 1898760 - RENATA NUNES OLIVEIRA