A six-lumped kinetic model of pyrolysis of heavy oil in supercritical methanol |
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| Authors: | Ting Yan Kang Chen Litao Wang Yindong Liu Yanmei Zhang |
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| Affiliation: | 1. School of Chemical engineering and technology, Xi'an Jiaotong University, Xi'an, China;2. Petrochina Petrochemical Research Institute, Project Office of Heavy to Light Conversion, Beijing, China |
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| Abstract: | The product distribution of pyrolysis of heavy oil in the supercritical methanol (SC-MeOH) was studied. It could be found that the pyrolysis reaction rate enhanced with the increase of temperature. Compared with reaction in N2, the coking formation was promoted in SC-MeOH. It was attributed to “cage effect” caused by methanol. The aromatics and resins which can dissolve asphaltenes were isolated by cages. Therefore, more coke was formed by condensation of asphaltenes. A lumped reaction kinetic model modified by equilibrium mass fraction of aromatics and resins was established, which could describe and predict the products distribution in SC-MeOH. |
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| Keywords: | kinetic pyrolysis supercritical methanol |
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