STRUCTURAL REINFORCEMENT TO NAPHTHA TOWER WITH BELZONA TECHNOLOGY
Industry: Oil & Gas (OILG)
Application: ()
Substrate: Carbon Steel coated with fiberglass
Customer Location: Refinery, Brazil
Application Date: 2012
Products:
Belzona 1511 (Super HT-Metal)
Belzona 1391 (Ceramic HT)
Problem: Leaking naphtha due to the presence of holes in the inferior generatrix.
Photograph Descriptions
- Naphtha leak at the lower generatrix
- Installation of the structural reinforcement of the cover with Belzona 1511
- Structural reinforcement installed in the lower generatrix with Belzona 1391
- Completed application
Application Situation
Naphtha Accumulator
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.
