Process description for the BA1 example simulation
- Last UpdatedSep 19, 2024
- 2 minute read
This simulation includes a single feed to the system (SRC1) and a single batch distillation column (C1).
We first add material to the pot of the batch distillation column (the initial "charge" for the distillation column). We then heat the material to produce a specified molar boilup rate (C1.Fpot). The vapor from the pot enters the tray section of the batch distillation column. In Process mode, the condenser at the top of the batch distillation column operates at total reflux. In Dynamics mode, the condenser operates at total reflux and then switches to include a product draw to an internal tank.
The following table shows the composition and thermal condition of the feed.
Table 1: Feed conditions
|
Variable |
Description |
Value |
UOM |
|---|---|---|---|
|
SRC1.F |
Molar flow rate |
172.602 |
kmol/h |
|
SRC1.P |
Pressure |
101.325 |
kPa |
|
SRC1.T |
Temperature |
46.85 |
°C |
|
SRC1.M[MEOH] |
Unnormalized molar feed composition of methanol |
1 |
kmol |
|
SRC1.M[H2O] |
Unnormalized molar feed composition of water |
1 |
kmol |
The following table shows the equipment sizes and configuration throughout the simulation. It shows only the values that differ from the default value.
Table 2: Equipment sizes and configuration
|
Variable or Parameter |
Description |
Value |
UOM |
|---|---|---|---|
|
C1.NStages |
Number of stages in the distillation column |
10 |
- |
|
C1.CompBasis |
Parameter to determine whether the distillation column reports values on a molar or mass basis |
Mass |
- |
|
C1.Contact |
Contact efficiency factor for the stages in the distillation column |
1 |
fraction |
|
C1.TankVol |
Parameter to determine whether the tank volume is specified or calculated |
Specify |
- |
|
C1.VT1 |
Internal tank volume |
0.1 |
m3 |
|
C1.Vpot |
Volume of the pot |
0.111 |
m3 |
|
C1.Levelpot |
Level of the pot |
0.9 |
fraction |
|
C1.VFpot |
Vapor fraction in the pot |
0 |
mol frac |
|
C1.Fpot |
Molar boilup rate in the pot |
3.6 |
kmol/h |
|
C1.Vohd |
Molar vapor product rate of the distillation column |
0 |
kmol/h |
|
C1.Int1.T1.TankType |
Parameter to determine whether the tank is a simplified model with no required geometry or a rigorous model that accounts for tank geometry and displays the tank level on the Canvas |
Tank |
- |
|
C1.Int1.T1.CompBasis |
Parameter to determine whether the tank reports values on a molar or mass basis |
Mass |
- |