Banca de QUALIFICAÇÃO: JOEMIL OLIVEIRA DE DEUS JUNIOR

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : JOEMIL OLIVEIRA DE DEUS JUNIOR
DATE: 29/05/2025
TIME: 09:00
LOCAL: Auditório LABTAM
TITLE:

DEVELOPMENT OF CATALYSTS FOR OBTAINING SUSTAINABLE FUELS VIA PYROLYSIS

KEY WORDS:

catalytic pyrolysis, heterogeneous catalyst, renewable hydrocarbon

PAGES: 30
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Processos Industriais de Engenharia Química
SUMMARY:

In the face of climate change and growing environmental concerns, biofuels have emerged as a promising alternative for the decarbonization of the transportation sector. The pyrolysis of residual biomass is a consolidated thermochemical route that allows the production of bio-oil and other compounds of industrial interest, promoting the valorization of waste and applying principles of circular economy and green chemistry. However, bio-oil has technical limitations, such as low energy quality and chemical instability, requiring upgrading processes with the use of catalysts. Despite the effectiveness of conventional catalysts such as zeolites and transition metals, their high cost and environmental impact make large-scale application difficult. Thus, it is essential to develop more sustainable, economical and efficient catalysts to improve the quality of bio-oil and enable its use as a renewable fuel. Therefore, this work aims to develop cheap, effective catalysts with less environmentally aggressive production processes for the production of renewable hydrocarbons via pyrolysis of residual biomass. Biomasses from by-products of other production processes will be selected to be used as raw material, characterized and pyrolyzed in a PY-GC/MS system. In addition to selecting, synthesizing, and characterizing and testing the developed catalysts, they will also undergo a screening step via PY/GC-MS in the ex-situ configuration at 500 °C, where their capacity for denitrogenation and deoxygenation of condensable volatile products will be evaluated. The semi-quantitative analysis of the composition of these products will also provide renewable hydrocarbon production data that will serve as a basis for selecting the most promising catalysts for bench-scale testing (ex-situ, 500 °C) and, subsequently, in TRL 4. It is expected that at the end of the work at least one low-cost, waste-based catalyst will be produced, characterized and effective in the production of renewable hydrocarbons with potential for biofuel production via pyrolysis.

COMMITTEE MEMBERS:
Presidente - 1979301 - RENATA MARTINS BRAGA
Interno - ***.155.394-** - JOSÉ LUIZ FRANCISCO ALVES - UFRN
Interna - ***.948.834-** - KARINE FONSECA SOARES DE OLIVEIRA - UFRN
Externa à Instituição - GISLANE PINHO DE OLIVEIRA