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Seven-lump kinetic model for catalytic pyrolysis of heavy oil |
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| Affiliation: | 1. Department of Chemical Engineering, Curtin University of Technology, Perth, WA 6845, Australia;2. Department of Chemical Engineering, University of Newcastle, Callaghan, NSW 2308, Australia;1. Center of Research Excellence in Petroleum Refining & Petrochemicals, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia;2. J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolej?kova 3, CZ-182 23 Prague 8, Czech Republic;3. Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia |
| Abstract: | A 7-lump kinetic model is proposed to describe the catalytic pyrolysis of heavy oil. The kinetic model contains 15 kinetic constants and one for catalyst deactivation. The experimental data were obtained in a confined fluidized bed reactor. The kinetic constants were estimated by a special program compiled based on the Marquardt’s algorithm. The apparent activation energies were calculated according to the Arrhenius equation. This model fits the experimental data well. The prediction shows that catalytic pyrolysis of Chinese Daqing atmospheric residue should be conducted at low space velocity to produce much ethene and at space velocity around 15 h?1 to produce much propene and butene. |
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