KHIA headerKnow-How in Action

VOL XXX, NO 9

Structural Reinforcement To Naphtha Tower With Belzona® Technology

 
 

Industry:

Oil & Gas (OILG)

 
 

Application:

 
 

Customer Location:

Refinery, Brazil

 
 

Application Date:

2012

 
 

Application Situation:

Naphtha Accumulator

 
 

Problem:

Leaking naphtha due to the presence of holes in the inferior generatrix.

 
 

Products:

Belzona 1511 (Super HT-Metal)

Belzona 1391 (Ceramic HT)

 

Substrate:

Carbon Steel coated with fiberglass

 
 

Application Method:

The surface preparation was carried out through abrasive blasting of the pre-fabricated parts and grinding of the fiberglass substrate and metal parts of the equipment. Then, Belzona 1511 was applied to the upper generatrix with a stainless steel reinforcement sheet for fastening the tie rods and sealing the plates of the lower generatrix. Belzona 1391 was injected in the lower generatrix for a better accommodation with regards to the peripheral imperfections of the fiberglass.

 
 

Belzona Facts:

The naphtha accumulator has been previously repaired with fiberglass, a procedure that was not effective and displayed holes in the fiber. Belzona guaranteed to enclose the system with an operating temperature of 115°C and operating pressure of 400 gf/cm², exceeding several critical points, such as the location of the accumulator at the top of the tower at 86 m in height and hoisting 70 kg parts to the top. Inspection was carried out in February of 2015 and it was verified that the installed system is still working well.

 
 

Photographs Description

  1. Naphtha leak at the lower generatrix
  2. Installation of the structural reinforcement of the cover with Belzona 1511 
  3. Structural reinforcement installed in the lower generatrix with Belzona 1391 
  4. Completed application
 
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