Banca de QUALIFICAÇÃO: JHUDSON GUILHERME LEANDRO DE ARAUJO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JHUDSON GUILHERME LEANDRO DE ARAUJO
DATE: 01/04/2022
TIME: 15:00
LOCAL: videoconferência
TITLE:

SYNTHESIS OF DROP-IN BIOFUELS VIA PHOTOCATALYTIC DECABOXYLATION

 

KEY WORDS:

Photocatalysis, drop-in biofuels, fatty acids, decarboxylation.

PAGES: 80
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Química Orgânica
SPECIALTY: Fotoquímica Orgânica
SUMMARY:

The environmental impacts generated by the emission of CO2 and the energy insecurity of fossil fuels have attracted the attention of governments and transport sectors around the world. In this context, the replacement of petroleum derivatives by drop-in biofuels appears as an alternative for mitigating greenhouse gases (GHG) and diversifying the energy matrix. In Brazil, with the creation of the fuels of the future program, the development and incorporation of these biofuels is projected, and investments in R, D&I have been carried out with the objective of diversifying the biomass used and their conversion methods, which are currently expensive because they require harsh operating conditions and use non-renewable hydrogen gas. Therefore, the development of a synthetic route for converting new biomasses into drop-in biofuels using mild and H2-free conditions is desirable. Thus, in this work two photocatalytic systems were developed for the deoxygenation of fatty acids, which made it possible to obtain biohydrocarbons using organic catalysts under conditions of ambient temperature and pressure, free of metals and hydrogen gas. After optimization, the protocols were able to convert fatty acids into Cn-1  hydrocarbons with high selectivity, including a conversion of 97% of the acids obtained from licuri oil to produce a mixture of C11-C17, which is compatible with the range of the biojet and green diesel.

BANKING MEMBERS:
Presidente - 2140818 - AMANDA DUARTE GONDIM
Externa à Instituição - ARUZZA MABEL DE MORAIS ARAUJO - UFRN
Interno - 348475 - DJALMA RIBEIRO DA SILVA
Externa ao Programa - 2140775 - LIVIA NUNES CAVALCANTI