| Autor: |
de Araújo, Larissa Cicianny Luz Ferreira, de Moura Dantas, Taisa Cristine, de Morais Araújo, Aruzza Mabel, Gondim, Amanda Duarte, Fernandes Júnior, Valter José, de Araújo, Antonio Souza |
| Předmět: |
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| Zdroj: |
Petroleum Science & Technology; 2017, Vol. 35 Issue 13, p1396-1402, 7p |
| Abstrakt: |
In research for materials that can be applied in processing heavy oil (petroleum), this work proposes to synthesize mesoporous heterogeneous catalysts, type SBA-15, with the addition of cerium metal and aluminum. These catalysts were characterized by X-ray diffraction, scanning electron micrographs coupled to energy dispersive spectrometry, spectroscopy in the infrared region by Fourier transform, N2adsorption and desorption and thermal analysis-thermogravimetry. Thermal tests were performed to evaluate the thermal and catalytic degradation process with a sample of heavy oil (°API = 14). Through the non-isothermal kinetic model of Ozawa Flynn Wall (OFW) some parameters for determining the apparent activation energy of decomposition were obtained. The petroleum with 12% of Ce5Al50SBA-15 showed a catalytic activity for this material. It has been seen that there was a decrease in the Ea inmodel freeof the order from 89.0 to 104.9 kJ mol−1in α = 50% ± 10%, and it was repeated from the first percentage until the last showing performance of Ce5Al50SBA-15 as a catalyst. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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