APPLICATION
Compressors for Flare Gas Recovery
Turning a torch into a feed stream — low suction pressure, dirty gas, intermittent duty
Typical flare-recovery duty: gas collected from the flare header at near-atmospheric pressure and boosted to fuel-gas-system pressure, with flow that swings between zero and design.
A typical duty profile
| Gas | Natural Gas (CH4 mix) |
|---|---|
| Capacity | 1500 Nm³/h |
| Suction pressure | 1.1 bar(a) |
| Discharge pressure | 10 bar(a) |
| Suction temperature | 50 °C |
| Oil-free required | No |
| ATEX / hazardous area | Yes |
| Contamination | droplets |
| Duty | intermittent |
What the tool says on this profile
The tool's answer on this profile: Dry (Oil-Free) Screw Compressor, with 2 alternate families in play. Duty as derived by the engine: 1500 Nm³/h, 1.1 bar(a) → 10.0 bar(a), overall pressure ratio 9.1.
Computed at build time by the same engine the tool runs — this page and the selector cannot disagree. Your duty differs from the profile? Run your own numbers below.
What to watch
- Suction pressure barely above atmosphere is the defining constraint — the machine must pull from the flare header without starving it.
- Composition is whatever the plant is upset about today; design for the range, including heavy ends.
- Intermittent operation with long standstills — start reliability matters more than peak efficiency.
Related on this site
Your duty point? Open the selector with this application's profile pre-filled — every value stays editable.
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