Column Trays

Column Trays
Product Description
EDV™ high performance tray is recommended to be applied in the tray columns in the columns. EDV™ tray offer to you solution with higher capacity, higher separation efficiency, lower pressure drop and better flexibility as well as lower capital costs.

Since its inception in late 1997, EDV™ high performance trays have been successfully applied in more than 1000 commercial installations in the refining, petrochemical and chemical industries. EDV™ trays have been used in wide range of applications ranging from 0.8 to 10.2 meter tower diameters, 300 to 1100 mm tray spacing, towers with a few to more than 200 trays, one to four passes (including three-pass), and in vacuum to high pressure systems.

The EDV™ High Performance Tray technology consists of various design know-how and patented features that help, not only improve column throughput and efficiency, but also extend the column run-time. Specifically, EDV™ High Performance Trays are featured with:

- EDV™ Valves and Directional Flow Promotion Devices
EDV™ valves and its directional flow promotion devices help eliminate stagnant liquid pool and promote uniform liquid plug flow and froth densities across the entire bubbling area. As a result, the directional promotion devices eliminate the fouling material settling on the tray deck and extend the column run time.

- The patented "Quick-Connect" Active Tray Joints
Typically, tray panels are connected with bolting constructions which resulted in approx. 100-mm wide of inactive zones between tray panels. These typically 100-mm wide inactive zones on the tray decks not only cause the liquid to by-pass (i. E., no contact with the vapor), but also offer opportunity for the fouling material to settle (due to no vapor/liquid contacting action).

- Inlet Bubble Promoters
The EDV™ Pinnacle Performance Tray is designed with unique inlet bubble promoters to allow for froth initiation near the inlet area of the active panels. The froth initiation helps minimize/eliminate the liquid gradient on the tray and promotes uniform froth distribution across the entire tray active area and results in higher tray capacity and operating flexibility.

In summary, EDV™ high Performance Trays consist of combinations of various features outlined above as well as other design know-how that is crucial in achieving high performance (i. E., capacity, efficiency, pressure drop, turndown and run-time). When compared with typical valve / sieve trays, EDV ™ high Performance Trays offer:

- Higher capacity - typically 20-40%,
- Higher tray efficiency - typically 5-15%
- Lower pressure drops - typically 15-20%
- Higher turn down flexibility, and
- Longer column run-time.

Trademark: EDV

Column Trays product offered by Beijing Zehua Chemical Engineering Co., Ltd.