Banca de DEFESA: PEDRO PAULO LINHARES FERREIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : PEDRO PAULO LINHARES FERREIRA
DATA : 29/07/2016
HORA: 15:00
LOCAL: Auditório do NUPPRAR
TÍTULO:

PIRÓLISE RÁPIDA DE BORRACHA RESIDUAL DE PNEUS INSERVÍVEIS (BRPI) UTILIZANDO CATALISADORES DE FE 

PALAVRAS-CHAVES:

fast pyrolysis, waste tires, Fe catalysts.

PÁGINAS: 115
GRANDE ÁREA: Engenharias
ÁREA: Engenharia de Materiais e Metalúrgica
RESUMO:

The residual rubber of unserviceable tires (RRUT), incorrectly disposed of in landfill sites, becomes worrisome industrial waste. It is estimated that Brazil alone produces 20 million tons of RRUT annually, while Europe generates 289 million tons. Hence, it became necessary to reduce the environmental impacts generated by RRUT due to the newly-enacted law (CONAMA no. 416/2009). Clean technologies, such as pyrolysis, have been applied to the processing of this residue. The pyrolysis process, together with catalysts, appears to be a promising technology for the conversion of RRUT into products that can be used not only for energy but also for the generation of chemicals, such as benzene, toluene, ethylbenzene and xylene (BTEX). This comparative study aims to analyse the efficiency of Fe for the generation of chemical compounds used in the industry through the pyrolysis of RRUT. For this purpose, the residue and the catalysts were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM), BET surface área, thermogravimetric analysis (TGA), in addition to the immediate analysis. The efficacy of two catalysts, Fe/MCM-41 and Fe/CCA, was compared. Each catalyst was applied to the fast pyrolysis process of the RRUT at 400°C to obtain chemical compounds in a CDS Analytical 5200 HP-R pyrolyzer, and the condensed gases were analysed in a VARIAN 3900 chromatograph. Due to these results, it was possible to observe that the overall chemical compound generation was harmed, in addition to the occurance of a new compound: “pcimeno”. The catalyst Fe/CCA had the least negative effect on the generation of chemical compounds in relation to the support.

MEMBROS DA BANCA:
Presidente - 349770 - DULCE MARIA DE ARAUJO MELO
Externo à Instituição - LUCIENE SANTOS CARVALHO - IFBA
Externo à Instituição - RENATA MARTINS BRAGA - UFRN
Externo à Instituição - VÍTOR RODRIGO DE MELO E MELO - UFRN