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Column revamping can be achieved by replacing the existing tower internals, if necessary
| From |
To |
| Conventional Trays & Packing |
High Performance Regular Packing
ADV™ Pinnacle Performance Trays |
Scope of Revamping
- Feasibility Study
- Gamma-Ray Scanning
- Process Simulation & Optimization
- Auxiliary Equipment Review
- Selection of optimum mass transfer equipment
- Design & Supply of mass transfer Equipment
- On-Site Services
- Installation Supervision
- Start-up assistance
Curde Atmospheric unit Revamp With ADV™ Tray and Structured Packing
Objectives
To modernize the 4.2 meter crude atomospheric unit yields.
Solution
Results
- 5% more lift of lights : From 28% to 33%
- 15% extra crude throughput
| Column Performance after Debottlenecking |
| Stream |
Yield, wt% |
| Crude |
100.0 |
| Preflash |
3.8 |
| Feed |
96.2 |
| Top |
4.0 |
| Side #1 |
2.2 |
| Side #2 |
18.0 |
| Side #3 |
5.6 |
| Side #4 |
66.4 |
Returen on investment was less than two months
Acetic acid Dehydration Column by ADV™ Pinnacle Performance Tray
Objectives
To increase acetic acid dehydration column capacity by as much as 30% and over to meet with the desired capacity of the existing PTA plant.
Solution
Results
| |
Before Revamp |
After Revamp |
| Column Dia. |
7'-0" / 8'-6" |
7'-0" / 8'-6" |
| No of Trays |
53/7 |
53/7 |
| No of Passes |
1/1 |
1/1 |
| Type of Tray |
Valve |
ADV™ |
| Feed Rete |
100% |
130% |
| Reflux Ratio |
100% |
100% |
| Distillate |
0.46 wt% HAc |
0.43 wt% HAc |
| Bottom |
92.8 wt% HAc |
93.5 wt% HAc |
| Press. Drop(kg/cm²)(overall) |
0.47 |
0.47 |
Xylene Splitter Revamp by ADV™ Pinnacle Performance Tray
Objectives
To increase column throughput by 20% and improve tray efficiency from 56% to 88%
Solution
Results
| |
Before Revamp |
After Revamp |
| Column Dia. |
7500mm |
7500mm |
| No of Trays |
150 |
146(4 Transition Trays) |
| No of Passes |
4 |
4 |
| Type of Tray |
Valve |
ADV™ |
| Feed Rete |
100% |
120% |
| Product Purities(O-Xylene Base) |
98.1% |
98.3% |
| Tray Efficiency |
56% |
88% |
|
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