Banca de QUALIFICAÇÃO: JOÃO BRANDÃO JÚNIOR

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : JOÃO BRANDÃO JÚNIOR
DATE: 14/07/2025
TIME: 14:00
LOCAL: Auditótio NUPEG
TITLE:

SYNTHESIS OF RENEWABLE DIESEL FROM THE CATALYTIC DEOXYGENATION OF BABAÇU OIL

KEY WORDS:

Biofuel; Green diesel; Hydrodeoxygenation (HDO); NiMo catalysts; Babassu oil.

PAGES: 44
BIG AREA: Engenharias
AREA: Engenharia Química
SUMMARY:

The growing demand for sustainable energy sources has driven the development of advanced biofuels, with particular emphasis on green diesel due to its compatibility with conventional engines and superior physicochemical properties compared to biodiesel. This PhD project aims to investigate the catalytic conversion of babassu oil, a regional, abundant, and non-edible feedstock, into hydrocarbons within the fossil diesel carbon number range through hydrodeoxygenation (HDO). The proposal includes the synthesis and characterization of monometallic (Ni or Mo) and bimetallic (NiMo) catalysts supported on alumina (Al₂O₃) and activated carbon (AC). To evaluate their catalytic performance a series of oil deoxygenations were performed under different operating conditions, including hydrogen pressures. The originality of this study lies in its systematic comparison of the effects of different catalyst supports on oil conversion, selectivity, and hydrocarbon yield, along with the identification of operational conditions that primarily minimize hydrogen consumption, thereby improving the technical, economic, and environmental feasibility of the process. The liquid products are analyzed by gas chromatography coupled with mass spectrometry (GC-MS) to identify the hydrocarbon distribution and verify the simultaneous occurrence of other deoxygenation routes, such as decarboxylation and decarbonylation. The development of this work contributes to technological advancement in the production of advanced biofuels, promoting the sustainable use of Brazilian natural resources and aligning with decarbonization goals and the Sustainable Development Goals (SDGs).

COMMITTEE MEMBERS:
Presidente - 1979301 - RENATA MARTINS BRAGA
Interno - 1670497 - HUMBERTO NEVES MAIA DE OLIVEIRA
Interno - 1149554 - OSVALDO CHIAVONE FILHO
Externo à Instituição - ANDERSON ALLES DE JESUS - UNIT