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|Type:||Artigo de evento|
|Title:||Special Molecular Distillation Prototype To Characterization Petroleum Residue|
Wolf Maciel M.R.
Maceil Filho R.
|Abstract:||Due to the importance and to need in studies with heavy and extra heavy petroleum and its residues, it was designed and built up by the oil research group of LOPCA/LDPS/FEQ/UNICAMP, in partnership with the Laboratory of Valuation Processes of CENPES/PETROBRAS a pilot plant falling film molecular distillation (national prototype), where some specific operational facilities were introduced. This project resulted in a suitable system for distillation of products of high molecular weight and thermally sensitive, without degradation of them. For the assay of the properties of petroleum and petroleum products, the use of the true boiling point (TBP) distillation analysis is accepted as a common practice; however, for heavy petroleum fractions, some difficulties appear for determination of TBP of these petroleum fractions. The determination of TBP is well established for petroleum fractions that reach the TBP up to 565°C through ASTM. Even so, for higher temperatures, there is not yet a standard methodology. In this way, methodologies were established for the determination of the true boiling point for heavy fractions of petroleum above 565 °C, where it was possible to reach values up to 700 °C, representing a considerable progress in the analyses of heavy petroleum fractions. Using national falling film molecular distillation equipment, experiments were performed with atmospheric residue ETA 400 °C+, where operating temperatures were increased systematically. With results found, it was possible to extend the curve TBP until temperatures close to 700 °C. Copyright © 2009, AIDIC Servizi S.r.l.|
|Editor:||Italian Association of Chemical Engineering - AIDIC|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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