Delayed-coker overhead line at a refinery in Oklahoma, USA.
A historically-uninsulated coker overhead line on the Great Plains needed protection against high winds, cold winters, and 37 in/yr rainfall — without losing the line’s required rapid heat loss. 20 mm Pyrogel® HPS went in inside a 3-day TAR window.
All-weather protection without compromising rapid heat loss.
The first 20–30 ft of the line operates intentionally uninsulated for rapid quench from 810 °F to 790 °F; downstream, the line needed weather protection.
- Process needs rapid heat loss. Outlet of drum cools intentionally from 810 °F to 790 °F.
- Great Plains weather exposure. High winds, cold winters, ~37 in/yr rainfall affected stability.
- TAR window only. Insulation phase had to fit inside the planned turnaround.
Insulate after the rapid-cool zone, with Pyrogel® HPS.
20 mm Pyrogel® HPS on a 150-ft, 24-in line — installed and jacketed during the TAR.
- Pyrogel® HPS selected for proven effectiveness. Operator had previously used Pyrogel® in cryo units, furnaces, and reactors.
- No other materials considered. Single-material decision for the TAR.
- Completed inside 3 days. Speed of application closed the scope with time to spare.
- ~2,100 ft² installed total. On a 150-ft × 24-in line, full coverage.
Insulation phase done early — process protected from weather.
Pyrogel® HPS’s combination of fast installation and durability protected the coker overhead from the inclement Great Plains weather while preserving the operator’s required heat-loss profile in the rapid-cool zone.
Overhead line failing under weather exposure?
Pyrogel® HPS handles the temperature, vibration, and weather profile of coker overhead lines.