Battery · Surface Facilities
Flare Stack
A stack with a pilot that burns the gas the site cannot capture, such as relief valve discharges.
What it does
A knockout drum at the base removes liquid droplets carried with the relief gas, and a pilot or igniter lights the gas as it leaves the tip. In Alberta, flaring, incinerating and venting are regulated.
Basics
| Parts | Knockout drum, stack, tip, pilot or igniter |
| Design guide | API RP 521 |
| Alternative | Incinerator |
| Alberta | AER Directive 060 |
Common failures
- Liquid carried past the knockout drum to the flare
Troubleshooting
- Symptom
- Liquid showing at the flare
- Likely cause
- Knockout drum not removing liquid
- What to check
- Check the drum level and the carryover from upstream separators