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Modelling of the production of biodiesel by reactive distillation

Modelling of the production of biodiesel by reactive distillation. Supervisor: Sigurd Skogestad Co-supervisor: Chriss Grimholt. Outline. Energy Consumption. Biodiesel. Made from plant oils No modification of engine Lower emissions Carbon neutral

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Modelling of the production of biodiesel by reactive distillation

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  1. Modelling of the production of biodiesel by reactive distillation Supervisor: Sigurd Skogestad Co-supervisor: Chriss Grimholt

  2. Outline

  3. Energy Consumption

  4. Biodiesel • Made from plant oils • No modificationofengine • Loweremissions • Carbonneutral • Renewableenergysource

  5. ReactiveDistillation • The mergingof a reactor and a distillationcolumn in one • Muchinterest in thistechnology • Can save a lot ofmoney • Not alwaysfeasible

  6. ProcessConditions

  7. The Reactions • Rate equations from the rate law • Kineticconstants from theArrheniusequation

  8. DistillationColumn Molar balances Raoult’s Law

  9. Dynamics

  10. Composition

  11. Temperature • Simple boilingpointmethod • Modifiedboilingpointmethod • Iterative Raoult’slaw

  12. Temperature

  13. Performance

  14. Summary • The model shows the same trends as in theliterature. • The model is not ideal and somechallenges still exists. • The chemicalequilibriumneeds to be modelled a different way to get more accurateresults.

  15. Francis weir

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