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Number | Variable |
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1 | Feed flow of the unit/kmol·h−1 |
2 | Pressure in the feeding tank/MPa |
3 | Liquid level in the feeding tank/% |
4 | Feed flow of the depropanizer/kmol·h−1 |
5 | Feed temperature of the depropanizer/°C |
6 | Condensate water flow in the feeding preheater/kmol·h−1 |
7 | Condensate water temperature in the feeding preheater/°C |
8 | Pressure on the top of the depropanizer/MPa |
9 | Temperature on the top of the depropanizer/°C |
10 | Overhead reflux flow of the depropanizer/kmol·h−1 |
11 | Overhead reflux temperature of the depropanizer/°C |
12 | Liquid level of the overhead reflux tank/% |
13 | Pressure in the overhead condenser/MPa |
14 | Flow of the overhead product to the deethanizer/kmol·h−1 |
15 | Cold fluid flow in the overhead condenser/kmol·h−1 |
16 | C3 mole fraction in the overhead product/% |
17 | Sensitive tray temperature in the depropanizer/°C |
18 | Pressure at the bottom of the depropanizer/MPa |
19 | Temperature at the bottom of the depropanizer/°C |
20 | Liquid level at the bottom of the depropanizer/% |
21 | Temperature in the reboiler/°C |
22 | Flow rate from the reboiler back to the depropanizer/kmol·h−1 |
23 | Fluid temperature from the reboiler back to the depropanizer/°C |
24 | Liquid level in the reboiler/% |
25 | Hot fluid flow in the reboiler/kmol·h−1 |
26 | Flow of the column product to the deisobutanizer/kmol·h−1 |
27 | C4 mole fraction in the bottom product/% |
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