2 replies to this topic

[H.T.]

We have a plant that have experienced salt deposition on the condensate stabilizer trays and re-boiler and rundown coolers. As a temporary measure potable water injection lines were connected to the plant to dissolve the salts and prevent further build-up. This solution causes problem of internal corrosion to the stabilizer trays. We think of several solutions as desalter, filter coalescer or chemical injection to prevent corrosion or salt deposition and also to remove the requirements for water injection.

 

What's the most adequate solution in your opinions and if there is another solution, what's it?

[shantanuk100]

Hello H.T,

 

Chemical injection is one solution but can prove costly in the long run.

I would suggest using a Modular Skid (Process Module) desalting unit, before your process unit.

 

Do check out this link.

http://www.waterworl...l-packages.html

 

Even solar desalination units are coming up now, if you want to consider those. Things such as salt removal, gas dehydration, sweetening must always be done early on to reduce cost of any materials required later on in the process.

 

Regards,

Shantanu

Edited by shantanuk100, 22 December 2015 - 08:40 PM.

[Chemitofreak]

In an Oil & Gas facility a desalter is always installed at the upstream od the Stabilisation Column.

It is always better to remove the salts at the upstream to avoid corrosion and salt deposition issues that in turn lead to exotic MOC.