Carbon Capture & CO₂ Compression Equipment worked example
Sorbent Consumption with sorbent makeup rate of 30 kg / hr: a worked example
Push sorbent makeup rate up to 30 kg / hr and the picture changes. This example computes every intermediate figure at that operating point. Use it when sorbent consumption in carbon capture and co₂ compression equipment is being quoted and consumables are a real chunk of the cost stack.
The inputs for this scenario
- Sorbent makeup rate: 30 kg / hr (raised for this scenario; the documented default is 12)
- Capture system runtime: 8 hr (unchanged)
- Sorbent cost: 3.5 $ / kg (unchanged)
Working through the calculation
- Applying the documented formula (Sorbent consumed = sorbent makeup rate × capture system runtime) to the inputs above produces each figure below.
- At this operating point the engine returns 840 $ for sorbent replacement cost, the number this scenario is built around.
- At this operating point the engine returns 240 units for sorbent consumed.
- At this operating point the engine returns 8 hr for capture system runtime.
- At this operating point the engine returns 3.5 $ / unit for sorbent cost.
How this compares with the baseline
- Against the tool's baseline example, where sorbent makeup rate sits at 12 kg / hr and the headline result is 336 $, this scenario comes in 150% above the baseline at 840 $.
- It multiplies sorbent makeup rate by runtime to get total sorbent consumed, then multiplies by unit price to get the replacement cost. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.
Results at a glance
- Sorbent replacement cost: 840 $ (headline result)
- Sorbent consumed: 240 units
- Capture system runtime: 8 hr
- Sorbent cost: 3.5 $ / unit
Run it with your numbers
- Every input above is editable in the live Sorbent Consumption calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.