Banca de QUALIFICAÇÃO: CRISTIANO SANTOS DA CONCEIÇÃO JÚNIOR

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : CRISTIANO SANTOS DA CONCEIÇÃO JÚNIOR
DATE: 07/12/2023
TIME: 09:00
LOCAL: Remota
TITLE:

DEVELOPMENT OF A PROTOTYPE FOR CARBONIZING BRAZIL NUT WASTE

KEY WORDS:

Bioenergy; Drum oven; Domestic coals.

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUMMARY:

The hedgehog that surrounds Brazil nut kernels (Bertholletia excelsa Humn. & Bonpl) has a lignocellulosic composition and can be used in the production of domestic charcoal to improve the income of extractive communities. To this end, it is necessary to propose carbonization systems that are low-cost, durable and low-polluting, in addition to providing high-quality coal. The present work aims to develop a drum-type oven with low environmental impact and methodologies for preparing the hedgehog for the production of charcoal for domestic use, aiming at the future implementation of carbonization in the extractive production cycle of Brazil nuts. For this purpose, a prototype drum oven was proposed with proposals for improvements in relation to the ovens reported in the literature and used in the Amazon, consisting of four large parts: reactor, energy chamber, combustion chamber and drying chamber. The biomass will be allocated to the reactor, which consists of a 200L drum, which in turn is allocated within the combustion chamber for heating up to approximately 400°C using external energy that will be generated in the energy chamber. The gases produced in the reactor will be directed to the energy chamber and, at the end, all remaining gases will be directed to the drying chamber to reduce the humidity of the biomass. The oven was subjected to carbonization pre-tests with other biomasses until the chestnut harvest time arrives, which will be carried out in the Paru State Forest in Pará. A prototype for cutting hedgehogs from a previous work was used to cut them. them into lamellas. In future stages, hedgehogs in coverslips will be tested in comparison with hedgehogs cut from chestnut trees, as well as fresh and degraded hedgehogs. The coals will be subjected to chemical, physical, mechanical and calorific analyses. It was possible to cut the hedgehogs into lamellae with the cutter. The furnace was built at a total cost of R$7,500.00 and was efficient in producing coal.

BANKING MEMBERS:
Presidente - 2410727 - LINA BUFALINO
Externo ao Programa - 3271139 - JONNYS PAZ CASTRO
Externo à Instituição - ALLAN MOTTA COUTO
Externo à Instituição - ALDO BRAGHINI JUNIOR