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SERVICES

Revamping

Column revamping can be achieved by replacing the existing tower internals, if necessary

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

Crude Atmospheric Unit Revamp With
High Performance tray and structured Packing

Objectives

To modernize the 4.2 meter
crude atmospheric unit yields.

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

Return on investment was less than two(2) months

Acetic Acid Dehydration Column
by High 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.

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 High Performance
Feed Rate 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
High Performance tray

Objectives

To increase column throughput by 20% and improve
tray efficiency from 56% to 88%

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 High Performance
Feed Rate 100% 120%
Product Purities
(O-Xylene Base)		 98.1% 98.3%
Tray Efficiency 56% 88%