Composition and visbreakability of petroleum residues
| Autor: | S. Di Carlo, B. Janis |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Visbreaker
Applied Mathematics General Chemical Engineering Mineralogy chemistry.chemical_element General Chemistry Fuel oil Raw material complex mixtures Industrial and Manufacturing Engineering chemistry Chemical engineering Yield (chemistry) Carbon Chemical composition Asphaltene Refining (metallurgy) |
| Zdroj: | Chemical Engineering Science. 47:2695-2700 |
| ISSN: | 0009-2509 |
| Popis: | An intensive experimental study has been performed on atmospheric residues from three crude oils (Rospo di mare, Belaym, Es Sider) in order to develop general correlation between visbreaking feedstock characteristics, yield and quality of products. The study allows to assess that the feedstocks rich in asphaltenes, resins and polars exhibit higher kinetic constants at low temperatures but lower kinetic constants at the temperature normally employed in visbreaking units. In comparison with heavy crude residues, light and paraffinic feedstocks have higher activation energy, higher gasoil selectivity and lower gas production. Correlations have been set up between yield of light valuable products, stability of the visbroken residues and the composition of asphaltenes and malthene fractions of the feedstock. Increasing the difference between aromatic carbon content of asphaltenes and malthenes of the feedstock, decreases the stability of the visbroken residues obtained at the same operating conditions and decreases the maximum conversion allowed by the visbreaking process. |
| Databáze: | OpenAIRE |
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