Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 136, Issue 5, Pages 2139-2144Publisher
SPRINGER
DOI: 10.1007/s10973-018-7830-6
Keywords
Petroleum residue; AlMCM-41; Thermogravimetry; Ozawa-Flynn-Wall; Activation energy
Funding
- National Council for Scientific and Technological Development (CNPq)
- CAPES
- National Agency of Petroleum, Natural Gas and Biofuels (ANP-Brazil)
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Thermogravimetry was used in order to evaluate thermal and catalytic degradation of atmospheric residue of petroleum (ATR) which is found at Brazilian refineries, after a process of atmospheric distillation. The catalyst used for the thermocatalytic degradation of ATR was the AlMCM-41 mesoporous material. The AlMCM-41 was obtained from hydrothermal method using cetyltrimethylammonium as organic template. The calcined material was characterized by chemical analysis and X-ray diffraction. The thermogravimetry analysis was carried out at temperature range of 30 to 900 degrees C and heating rates of 5, 10 and 20 degrees C min(-1), under nitrogen gas. From TG, the activation energy, determined using the Ozawa-Flynn-Wall kinetic method, decreased from 288kJmol(-1), for pure ATR, to 55kJmol(-1), in the presence of the AlMCM-41 material, evidencing the efficiency of the mesoporous materials for the catalytic degradation of petroleum residues.
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