Delayed-coker overhead line at a refinery in Mississippi, USA.
Insulation on the coker overhead line kept falling off, creating cold spots and premature coking risk. 70 mm of Pyrogel® HPS displaced 6" of calcium silicate, holding design temperatures and restoring process stability — and saving $25k in labor on the first install.
Insulation that wouldn’t stay on the line.
Calcium silicate kept falling off the overhead line — and cold spots in this service drive premature coking, which threatens drum-cycle integrity.
- Insulation falling off the overhead line. Repeated maintenance events did not solve the underlying issue.
- Cold spots drive premature coking. Coke formation in the line increases drum pressure and reduces liquid yield.
- Quench-oil washcoat threatened. Liquid-layer dryout starts coke formation in the vapor line.
Pyrogel® HPS — engineered for delayed-coker service.
The HPS variant of Pyrogel® was launched for high-temperature delayed-coker service; this site was an early adopter.
- 70 mm Pyrogel® HPS displaced 6" cal-sil. Thinner, lighter, faster to install.
- Maintained design temperatures. Process stability restored; cold spots eliminated.
- Earlier return to service. Faster install pulled the line back online ahead of plan.
- $25k labor saved on the first install. Material handling and crew-size benefits visible day one.
Pyrogel® HPS keeps the overhead line stable.
Pyrogel® HPS’s combination of durability and thermal performance solved the recurring fall-off problem and restored process stability on the overhead line. The site captured an immediate labor saving and an earlier-than-planned restart.
Coker overhead falling off in service?
Pyrogel® HPS is engineered for the temperature and vibration profile of delayed-coker overhead lines.