The most frequent application for Pocono Fabricators in Petroleum Refineries is the lining of concrete structures known as “Sulfur Pits”. As a by-product of the hydrocarbon refining process, molten sulfurous compounds are generated. When conveyed and contained in a refining or re-handling facility, molten sulfur is generally stored in subsurface tanks of structural concrete construction. Molten sulfur exists at 300 °F. These tanks, or Sulfur Pits, are subject to an extremely harsh environment. Typically constructed of reinforced concrete, Sulfur Pits can suffer severe deterioration.
Sulfur Pit maintenance, if not performed regularly, will result in aggressive deterioration. This process can significantly affect the integrity of the structure. Pre-Krete G-8 is frequently used in new construction applications, to re-line, and to “patch” these structures. Patching is a temporary fix that will allow the unit to remain in service until a complete re-line can be scheduled.
A typical application would be to apply Pre-Krete G-8 at a nominal 2-inch thickness over wire mesh reinforcement as detailed in our Guide Specification – PKWMC – Gunned Application of Pre-Krete to Concrete Including a Wire Mesh Anchoring System.
Pre-Krete has been a successful solution to corrosion issues in other refinery applications. They include:
- Asphalt room floor
- Knockout drum lining
- Gas/oil fractionation tower known as a Power Former
- Horizontal flare blow-down drum
- Petroleum Coker by-pass flue
- Heavy tar and gas oil desalting system
- Blow-down stack Sour water saturation tank