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CAPE-OPEN at IVC-SEP

CAPE-OPEN at IVC-SEP. Martin P. Breil Co-LaN Annual General Meeting Selwyn College, Cambridge 3-4 April 2008. Mærsk Olie og Gas AS. IVC-SEP. Welltec. Overview. IVC-SEP ThermoSystem A short update on the ThermoSystem CO 2 absorber General theory CAPE-OPEN way Results. Models involved.

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CAPE-OPEN at IVC-SEP

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  1. CAPE-OPEN at IVC-SEP Martin P. Breil Co-LaN Annual General Meeting Selwyn College, Cambridge3-4 April 2008

  2. Mærsk Olie og Gas AS IVC-SEP Welltec

  3. Overview • IVC-SEP ThermoSystem • A short update on the ThermoSystem • CO2 absorber • General theory • CAPE-OPEN way • Results

  4. Models involved • ThermoSystem contains • CPA, • PC-SAFT, • SRK and PR • CPA and PC-SAFT are associating models (H-bonds)

  5. Model parameters • SRK and PR are 3-parameter modelsa0 energy b co-volumec1 correlation (T-dependence on a0) • Based on the critical properties (Tc,Pc,w)

  6. Model parameters • CPA is a 5-parameter modela0 energy b co-volumec1 correlation (T-dependence on a0)e asc energyb asc volume factor CPA reduces to SRK when no asc. G.M. Kontogeorgis, M.L. Michelsen, G.K. Folas, S.O. Derawi, N. von Solms, and E.H. Stenby. Ten years with the CPA (Cubic-Plus-Association) equation of state. Part I. Pure compounds and self-associating systems. Ind. Eng. Chem. Res., 45:4855, 2006. G.M. Kontogeorgis, M.L. Michelsen, G.K. Folas, S.O. Derawi, N. von Solms, and E.H. Stenby. Ten years with the CPA (Cubic-Plus-Association) equation of state. Part II. Cross-associating and multicomponent systems. Ind. Eng. Chem. Res., 45:4869, 2006.

  7. New features

  8. New features

  9. New features

  10. New features

  11. Runs in … • Aspen 2-phase flashacetic acid 0.40water 0.40benzene 0.20 at T = 130 C and P = 3.5 bar

  12. Runs in… • COCO

  13. Runs in… • PRO/II

  14. Conclusions on ThermoSystem • Finally compliant with PRO/II (8.0.3). • Only contains a PT flash algorithm. • Comments to PRO/II • It is not possible to produce phase envelopes of CO-packages (but the built-in ones)

  15. PhD course Thermodynamic Models:Fundamentals & Computational Aspects January 2009 Michael Michelsen and Jørgen Mollerup • More on www.ivc-sep.kt.dtu.dk

  16. CO2 absorber • Contribute to the development of efficient CO2 capture for coal-fired power plants • 1/3 of man-made CO2 from generation of electricity • Denmark mainly coal • Keep electricity infrastructure

  17. Technology Absorption of CO2 from coal fired power plants with aqueous solutions of alkanolamines Chemical reactions Clean Flue Gas CO2 + 2 R2NH <=> R2NH2+ + R2NCOO– Flue gas CO2 Alkanolamine Simplified flow-sheet for CO2 Capture using Alkanolamines By courtesy of Jostein Gabrielsen

  18. Absorber Clean flue gas Height = 4.36 m Diameter = 15 cm Amine lean dll Flue gasw. CO2 Amine rich

  19. Setting-up the ODEs

  20. Setting-up the ODEs

  21. Boundary value problem • Example • Numerical solutionby collocation(Shampine et al.) Available on the web: Shampine, Muir, and Xu A user-friendly FORTRAN BVP solver

  22. Results • Implementation in Aspen • COCO

  23. Results from CO2 absorber

  24. Temperature profile in tower AMP Full – vapour Dash - liquid

  25. Conclusion on Unit Operations • Once the legacy code is provided, it is straightforward to produce a CO-version • Unfortunately, the engineers at the power plants do not use CO-compliant PMEs.(They build on in-house simulators)

  26. Acknowledgement • Members of the Chigp project • BP (UK/US), • Maersk Oil and Gas (Denmark), • Statoil (Norway), and • TOTAL (France) • Members of the CO2 capture project • DONG (Denmark) and • Vattenfall (Denmark/Sweden).

  27. Thank you for your attention. mpb@kt.dtu.dk

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