Carbon Capture & CO₂ Compression Equipment worked example

Regeneration Heat Load with regeneration heat duty of 6 kW: a worked example

Suppose regeneration heat duty falls to 6 kW. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate regeneration heat energy cost for solvent, sorbent, or thermal swing capture equipment during a defined operating period.

The inputs for this scenario

  • Regeneration heat duty: 6 kW (the input this scenario stresses; the baseline uses 12)
  • Regeneration operating hours: 8 hr (held at the documented default)
  • Energy price: 0.12 $ / kWh (held at the documented default)
  • CO₂ regenerated: 1,000 t CO₂ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Regeneration heat energy cost = regeneration heat duty × regeneration operating hours × energy price.
  • Regeneration heat energy cost works out to 5.76 $ at these inputs, and this is the headline figure for the scenario.
  • Regeneration heat energy used works out to 48 kWh at these inputs.
  • Regeneration heat cost per tonne CO₂ works out to 0.01 $ / piece at these inputs.
  • Hourly regeneration heat cost works out to 0.72 $ / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where regeneration heat duty sits at 12 kW and the headline result is 11.52 $, this scenario comes in 50% below the baseline at 5.76 $.
  • It multiplies regeneration heat duty by operating hours and energy price for total heat cost, then divides by CO₂ regenerated for cost per tonne. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Regeneration heat energy cost: 5.76 $ (headline result)
  • Regeneration heat energy used: 48 kWh
  • Regeneration heat cost per tonne CO₂: 0.01 $ / piece
  • Hourly regeneration heat cost: 0.72 $ / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Regeneration Heat Load calculator, set regeneration heat duty to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.