KHIA headerKnow-How in Action

VOL XXXIII, NO 117

Belzona® Protects Desalter From Corrosion

 
 

Industry:

Oil & Gas (OILG)

 
 

Application:

Tanks and Chemical Containment Areas (TCC)

 
 

Customer Location:

Scotland

 
 

Application Date:

May 2018

 
 

Application Situation:

Two desalters had come out of service. Osmotic blistering had been noted on the previous coating within the vessel. A long term solution was required to protect the two vessels from corrosion.

 
 

Problem:

The vessels contained hydrocarbons, salts & wet H2S at high temperature. The previous coating had failed, leaving the vessel exposed to the potential for corrosion.

 
 

Products:

Belzona 1511 (HT metal)

Belzona 1523

Belzona 1593

 

Substrate:

Mild steel

 
 

Application Method:

The vessels were blasted to SA2.5 & minimum 75 microns using garnet. Salt tests were carried out to ensure the levels were within acceptable limits. Any pits found were filled with Belzona 1511. Hard to spray areas were stripe coated with Belzona 1593. Two coats of Belzona 1523 were then applied. The application was carried out in accordance with Belzona System Leaflet TCC-5

 
 

Belzona Facts:

The vessel coating was completed within a tight shutdown window. This method of coating rather than replacing the vessels ensured long term protection with minimal disruption to the plant.

 
 

Photographs Description

1 - Osmotic blistering in competitor product 2 - Surface after grit blasting 3 - Belzona 1511 used to pit fill 4 - Two coats of Belzona 1523 applied by spray

 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com