Does the problem include:
[SIZE=3][B]1) [COLOR=#006400]Polymers[/COLOR]?
[/B][/SIZE]a) Polymerization reaction:[COLOR=#0000cd] [B]Aspen Plus[/B][/COLOR]
b) Separation between polymer fractions:[COLOR=#0000cd] [B]Aspen Plus[/B][/COLOR]
c) Separation based on solvent polymer solubility: [COLOR=#0000cd][B]Aspen Plus[/B][/COLOR]
d) Solid separation: [B]See 2[/B]). Hypocomponent-HYSYS; Pseudocomponent-Aspen Plus.
e) With dynamic simulation: [COLOR=#0000cd][B]Aspen Plus/Dynamics[/B][/COLOR].
[SIZE=3][B]2) [COLOR=#006400]Solids[/COLOR]?[/B] Solid operations are not available for dynamic simulation.
[/SIZE]a) Cyclone: [COLOR=#0000cd][B]HYSYS[/B][/COLOR] or Aspen Plus
b) Hydrocyclone: [COLOR=#0000cd][B]HYSYS[/B][/COLOR] or Aspen Plus
c) Vacuum rotary filter: [COLOR=#0000cd][B]HYSYS [/B][/COLOR]or Aspen Plus
d) Baghouse filter: HYSYS or [COLOR=#0000cd][B]Aspen Plus[/B][/COLOR]
e) Other solid-phase operation: check the availability on Aspen Plus.
[SIZE=3][B]3) [COLOR=#006400]Reactive distillation[/COLOR]?
[/B][/SIZE]a) Steady state only:[B] [COLOR=#0000cd]Aspen Plus[/COLOR][/B]or HYSYS
b) Dynamic simulation:[B] [COLOR=#0000cd]Aspen Plus/Dynamics[/COLOR][/B]. For HYSYS, Aspentech support [4] does not provide information. Luyben has reported failure [2].
[SIZE=3][B]4)[/B] [COLOR=#006400][B]Dynamic[/B] simulation[/COLOR]?
[/SIZE]a) Dynamic simulation to preview an upset result, hours after it has occurred:[COLOR=#0000cd] [B]Aspen Plus/Dynamics[/B][/COLOR] or HYSYS
b) Dynamic simulation, focused on controller tuning, testing different tuning methods:[COLOR=#0000cd][B] Aspen Plus/Dynamics[/B] [/COLOR]or HYSYS
c) Dynamic simulation to check if implemented control loops allow starting up and/or shutdown the process: [COLOR=#0000cd][B]HYSYS[/B][/COLOR] or Aspen Plus/Dynamics.
[B][/B]Aspen Plus/Dynamics is capable to solve more problems than HYSYS. But excluded the particular problems, indicated above, HYSYS should be preferred, because:
1) In steady state, the bidirectional calculation makes possible to resolve the problem, supplying the data of exit streams and without set up design-specs (restrictions and convergence objectives of the simulation);
2)Active solver, that produces resulted (or errors), as soon as the enough information is supplied;
3) Still in steady state, it allows to add control loops to the flowsheet;
4) Dynamic Assistant, that facilitates so much the migration for dynamic simulation;
5) Common interface, between steady state and dynamic simulation;
6) One single file for each simulation.
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