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C2 & C3 Splitters
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C2 & C3 Splitters

A Gulf Coast C3 Splitter successfully revamped utilizing SUPERFRAC® Trays. Koch-Glitsch design and manufacturing techniques resulted in a significant savings in installation.

Equipment | References | Case Studies | Technical Papers | FAQ

Koch-Glitsch Equipment
Koch-Glitsch has extensive references for Olefin Splitters and Light Hydrocarbon Fractionators. In fact, we have been involved with over 200 towers utilizing Koch-Glitsch High Capacity Trays in addition to several hundred installations with Conventional Mass Transfer Equipment. Our trays have performed where no other trays have. A 20% capacity increase is most common for revamps. Whether you are planning a tower revamp or a grassroots facility, we have the technology, process design, mechanical design & installation experience to make your project exceed your expectations.

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References
High-capacity trays have been employed as listed below. If you are interested in additional details regarding our reference list please contact us.

Separation Column Diameter Revamp or New Number of Trays
C3 16' - 0" New 234
C3 13' - 0" Revamp 100
C3 2000 mm Revamp 190
C3 1982 mm Revamp 9
C3 10' - 0" New 125
C3 2200 mm Revamp 150
C3 18' - 0" New 250
C3 11' - 6" New 240
C3 16' - 9" New 171
C3 12' - 3" New 214
C3 1500 mm   96
C3 2800/3000 mm Revamp 94
C3 20' - 0" New 130
C3 16' - 0" Revamp 236
C3 4400 mm Revamp 185
C3 2000 mm Revamp 190
C3 13' - 6" New 179
C3 2000 mm Revamp 190
C3 10' - 6" New 169
C2 1560 mm Revamp 116
C2 8' - 0" New 101
C2 5' - 6" Revamp 104
C2 13' - 0" Revamp 73


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Case Studies
SUPERFRAC® Trays Help Increase FCCU Capacity - Project Report 117

C2 Splitter Successfully Revamped with SUPERFRAC® Trays - Project Report 235

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Technical Papers
Debottlenecking Superfractionators for Capacity & Efficiency
Request This Technical Article

ETHYLENE & FCCU Gas Plant Revamps for Higher Capacity and Efficiency

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FAQ

Q: What VLE model does Koch-Glitsch use for C2 and C3 Splitters?
A: Koch-Glitsch has developed proprietary VLE models for both C2 and C3 splitters based on laboratory and plant operating data. Koch-Glitsch uses a commercially available process simulator, but has modified some physical and thermodynamic data in order to better fit the data. With this model, you can be assured that your process has been modeled correctly.

Q: What type of Capacity Increase is possible with the High Capacity trays?
A: Koch-Glitsch offers a wide variety of high capacity trays and they each have their own areas of applicability. It is relatively easy to see increases of 15% to 25% with the SUPERFRAC® trays. Even higher capacity increases are not uncommon. The ULTRA-FRAC® trays have been demonstrated to increase the capacity of some columns by more than 50%. See Case Studies.

Q: Have SUPERFRAC® trays been used in any Superfractionators (C2 and C3 Splitters)?
A: Yes, Koch-Glitsch’s SUPERFRAC® trays have been used successfully on numerous occasions to improve the performance of an existing column or to minimize the size of the shell for grassroots facilities. Additionally, because of the high tray efficiencies associated with SUPERFRAC® trays, the number of trays required is often significantly less than other tray technologies.

Q: What type of efficiency is possible with SUPERFRAC® trays?
A: The overall tray efficiency is dependent on many variables. However, we have regularly seen tray efficiencies at 95% in propane/propylene splitters. Even though the capacity of SUPERFRAC® trays is significantly above conventional trays, the overall tray efficiency is very similar.

Q: In what ways are SUPERFRAC® trays enhanced compared to conventional trays?
A: Koch-Glitsch has targeted the following three major areas for enhancing the performance of conventional trays:
  1. Active Area Enhancements
  2. Advanced Downcomer Technology
  3. Inlet Area Enhancements
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