Abstract
Distillation is the most common separation technology utilized in the petroleum and chemistry industries. Due to the wide usage of the distillation column, even a small improvement in performance may result in significant energy cost savings. Aiming to improve the hydrodynamics and mass transfer performance, the flow-guided trapezoid spray-packing tray (FTS-PT) was designed by combining flow-guided holes and trapezoidal caps with structured packing. And the experimental measurements of the FTS-PT, including pressure drop, clear liquid height, weeping, entrainment, and tray efficiency, were conducted in a 500 mm diameter plexiglass column with the air-water-oxygen system. Moreover, the performance of the FTS-PT was compared with that of new vertical sieve tray (New VST) and F1 valve tray. The results show that FTS-PT has a significant advantage in pressure drop, entrainment, and capacity. Furthermore, the calculation model of the pressure drop was derived and used for the FTS-PT with a relative deviation of less than 5%.
| Original language | English |
|---|---|
| Pages (from-to) | 59-67 |
| Number of pages | 9 |
| Journal | Chinese Journal of Chemical Engineering |
| Volume | 39 |
| DOIs | |
| State | Published - Nov 2021 |
| Externally published | Yes |
Keywords
- Calculation model
- Flow-guided hole
- Hydrodynamics
- Mass transfer
- Spray mode
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