Transient phenomena in the liquid batch interfacial zone are addressed based on: (i) a reliable compositional description; and (ii) mass transfer modeling. In phase (i), compositional models are proposed for transported fluids, with parameters estimated by maximum likelihood procedures to match known characterizing data, like distillation curve, density, viscosity and heteroatom weight fractions. In phase (ii), the transient mixing problem is posed on the continua of axial position in the duct, and described by Maxwell-Stefan formalism for multicomponent mass transfer between two contiguous semi-infinite fluids. Turbulent effects are considered on calculation of mass transfer coefficients, and rigorous thermodynamic driving forces are accounted for through component fugacities predicted by equations of state. The model was solved by the finite element method and the resulting set of ordinary differential equations in time was numerically integrated enabling determination of the mixing zone, calculation of property profiles and monitoring loss of product specifications.
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2002 4th International Pipeline Conference
September 29–October 3, 2002
Calgary, Alberta, Canada
Conference Sponsors:
- Pipeline Division
ISBN:
0-7918-3620-7
PROCEEDINGS PAPER
A Maxwell-Stefan Approach for Predicting Mixing Effects in Contiguous Batches of Multi-Product Pipelines
Ofe´lia Q. F. Arau´jo
,
Ofe´lia Q. F. Arau´jo
Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Jose´ L. de Medeiros
,
Jose´ L. de Medeiros
Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Hellen P. M. Carvalho
Hellen P. M. Carvalho
Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Ofe´lia Q. F. Arau´jo
Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
Jose´ L. de Medeiros
Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
Hellen P. M. Carvalho
Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
Paper No:
IPC2002-27179, pp. 1005-1014; 10 pages
Published Online:
February 24, 2009
Citation
Arau´jo, OQF, de Medeiros, JL, & Carvalho, HPM. "A Maxwell-Stefan Approach for Predicting Mixing Effects in Contiguous Batches of Multi-Product Pipelines." Proceedings of the 2002 4th International Pipeline Conference. 4th International Pipeline Conference, Parts A and B. Calgary, Alberta, Canada. September 29–October 3, 2002. pp. 1005-1014. ASME. https://doi.org/10.1115/IPC2002-27179
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