modelPrereformer_L1
Extends from Base.PartialFixedBedReactorRealGas_L1 (Partial model for L1 reactor models using real gases).
Information
1. Purpose of model
This model represents a simple adiabatic prereformer with no volume which decomposes the hydrocarbons C2H6, C3H8 and C4H10 with steam into CH4 and CO.
2. Level of detail, physical effects considered, and physical insight
The higher hydrocarbons are decomposed completely, there are no reaction rates or equilibrium reactions. A constant pressure loss is assumed.
3. Limits of validity
The model is only valid if the remaining hydrocarbons are negligible.
4. Interfaces
gasPortIn: real gas inlet
gasPortOut: real gas outlet
5. Nomenclature
(no elements)
6. Governing Equations
Stationary mass and energy balances considering the heat of reactions are used. The outlet composition is calculated depending on the incoming composition.
7. Remarks for Usage
The model only works in design flow direction and it has to be ensured manually that enough steam is in the incoming stream.
8. Validation
Tested in the check model "TransiEnt.Components.Gas.Reactor.Check.TestPrereformer_L1"
9. References
(no remarks)
10. Version History
Model created by Carsten Bode (c.bode@tuhh.de) on Tue Apr 05 2016
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| SI.MolarMass[medium.nc - 1] | M_comp | {0.01604, 0.03007, 0.0441, 0.05812, 0.02801, 0.04401, 0.01802, 0.02801} | Molar masses of components of vle_ng7_sg |
| Fundamental Definitions | |||
| TransiEnt.Basics.Media.Gases.VLE_VDIWA_NG7_SG_var | medium (from PartialFixedBedReactorRealGas_L1) | Medium in the reactor | |
| Integer | N_reac (from PartialFixedBedReactorRealGas_L1) | Number of reactions | |
| SI.MolarEnthalpy[N_reac] | Delta_H (from PartialFixedBedReactorRealGas_L1) | Reaction enthalpy for the reactions in J/mol | |
| SI.PressureDifference | pressureLoss (from PartialFixedBedReactorRealGas_L1) | Pressure loss over the reactor | |
| Summary | |||
| Boolean | useFluidModelsForSummary (from PartialFixedBedReactorRealGas_L1) | false | True, if fluid models shall be used for the summary |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.Basics.Interfaces.Gas.RealGasPortIn | gasPortIn (from PartialFixedBedReactorRealGas_L1) | ||
| TransiEnt.Basics.Interfaces.Gas.RealGasPortOut | gasPortOut (from PartialFixedBedReactorRealGas_L1) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.SimCenter | simCenter (from PartialFixedBedReactorRealGas_L1) | ||
| Summary | summary (from PartialFixedBedReactorRealGas_L1) |