High Dispersion Trays for Hydrotreating Reactors 1

[sshep]

Does anyone in this forum have knowledge of improved distributor design for conventional hydrotreating reactors(mixed phase, downflow, 9ftDia x 45ftT-T)?

We are considering a change-out of our conventional trays to get some additional reactor volume and any better performance which is possible from such a change. Currently I am inquiring into Shell's High Dispersion (HD) trays. Since these are proprietary design, I have a concern that the cost to benifit ratio could be overstated.

If anyone has either installed or considered installing this type hardware, I would be most interested in your comments and experience. Thanks, sshep

 

[RogerH]

sshep
Try to contact Haldor Topsoe. They were one of the first ones on the market for distributors after Mobils Spider Vortex. The Spider vortes probabnly work quite well but they also charge a very high cost.
Dont know how much Shell charges you for their trays but I assume that these are quite costly. Have seen Haldors trays in two plant I been at and they seem to work very well. Compared to conventional trays (e.g. chimneys) these were in the same cost range.
Nowdays most of the companies , such as Akzo , UOP , Chevron etc do have their own design wioth pro's and con's.