Banca de DEFESA: REGINEIDE DE OLIVEIRA LIMA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : REGINEIDE DE OLIVEIRA LIMA
DATA : 26/07/2016
HORA: 14:30
LOCAL: Sala de reuniões do NUP-ER
TÍTULO:

Zeolites Synthesized with the hierarchical structures Applied Pyrolysis Oil Industry residue

PALAVRAS-CHAVES:

Pyrolysis, HZSM-5, model Vyazovkin, ATR, HDPE

PÁGINAS: 100
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Química
RESUMO:

This paper reports the zeolites study ZSM-5 with Hierarchically structures of pores, synthesized using as silanizante agent phenylaminopropyl trimethoxysilane (PHAPTMS) at concentrations of 15mol%, 17mol% and 20mol%, aiming at implementing the best material in térmocatalítica Pyrolysis waste generated and derived from the oil industry. The synthesis of ZSM-5 were also conducted without organic template, assisted by the seed induction method in the form of powder, subjected to 180 °C for 27 hours, the crystallization interrupt periods at 8, 12 and 16 hours for addition of PHAPTMS. The materials were synthesized and characterized by the methods of X-ray diffraction (XRD), infrared spectroscopy (FTIR), Thermal analysis (TG / DTG), surface acidity measured by n-butylamine desorption thermogravimetric analysis (TG) and FTIR, scanning electron microscopy (SEM), nitrogen adsorption. Although it performed a kinetic study of behavior by thermogravimetry of pure RAT and HDPE waste and on catalysts. Through model-free kinetic method using the integral curves TG, were estimated activation energy, conversion rates and time degradation of waste in function of temperature. It was noted that for the materials synthesized with 15mol% of PHAPTMS in periods of 8, 12 and 16h showed higher concentrations of the active sites, surface acidity, making promising in HDPE degradation. The kinetic study of HDPE by Vyazovkin method showed a lower activation energy for the HZ-15mol% material in the 16-hour period. Also a lowering of the activation energy was revealed when used this material in the kinetic study for the RAT. In the thermal pyrolysis of waste and  thermalcatalytic carried out at temperatures of 500°C, 475°C, 450°C. It was chosen for use in termocatalítica pyrolysis, the material (HZ-15mol% -16h) due to better acidity and lower energy required for the degradation of HDPE. In thermalcatalytic pyrolysis of HDPE selectivity afforded products with added values, which can be used in the petrochemical industry. In thermalcatalytic pyrolysis RAT This material potentiated C₁-C₄ hydrocarbon groups; C₅-C₁₂, C₁₃-C₁₉ regarding the LPG, gasoline and diesel. Providing better loads in the process and reducing the waste generated during petroleum refining.

MEMBROS DA BANCA:
Externo ao Programa - 2140818 - AMANDA DUARTE GONDIM
Presidente - 350509 - ANTONIO SOUZA DE ARAUJO
Externo à Instituição - MARCILIO PELICANO RIBEIRO - PETROBRAS
Externo à Instituição - NATALY ALBUQUERQUE DOS SANTOS - UFPB
Externo ao Programa - 1149328 - VALTER JOSE FERNANDES JUNIOR