Carbon Capture & CO₂ Compression Equipment worked example
Absorber Pressure Drop at 92% capture train operating share: a worked example
What does the result look like when capture train operating share reaches 92%? The full calculation is worked below with real intermediate numbers. Use it when absorber pressure drop in carbon capture and co₂ compression equipment is being put through a carbon capture and co₂ compression equipment weighted-cost review.
The inputs for this scenario
- Gas-flow exposure at pressure drop: 100 kPa-hr (unchanged)
- Energy cost per pressure-drop exposure: 45 $ / kPa-hr (unchanged)
- Capture train operating share: 92 % (raised for this scenario; the documented default is 80)
- Fixed cleaning or inspection cost: 250 $ (unchanged)
Working through the calculation
- Applying the documented formula (Variable pressure-drop energy cost = gas-flow exposure at pressure drop × energy cost per pressure-drop exposure × capture train operating share) to the inputs above produces each figure below.
- At this operating point the engine returns 4,390 $ for total absorber pressure-drop cost, the number this scenario is built around.
- At this operating point the engine returns 43.9 $ / piece for cost per pressure-drop exposure unit.
- At this operating point the engine returns 4,140 $ for variable pressure-drop energy cost.
- At this operating point the engine returns 250 $ for fixed cleaning or inspection cost.
How this compares with the baseline
- Against the tool's baseline example, where capture train operating share sits at 80% and the headline result is 3,850 $, this scenario comes in 14.03% above the baseline at 4,390 $.
- A figure at this level is achievable when capture train operating share is genuinely sustained, not just peaked for a shift. It treats energy cost per pressure-drop exposure as a fixed unit rate; real compressor energy varies with gas density, temperature, and efficiency, so calibrate the rate to your own metered data.
Results at a glance
- Total absorber pressure-drop cost: 4,390 $ (headline result)
- Cost per pressure-drop exposure unit: 43.9 $ / piece
- Variable pressure-drop energy cost: 4,140 $
- Fixed cleaning or inspection cost: 250 $
Run it with your numbers
- Every input above is editable in the live Absorber Pressure Drop calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.