Six industries. One capture point each.
Point source capture works best where CO2 is already concentrated. Here's how Withinair adapts the platform to the flue chemistry of each industry.
Cement
Kiln off-gas carries process-inherent CO2 released from limestone calcination, on top of fuel combustion — making cement one of the highest-concentration point sources available.
Flue CO2 concentration: 18–28%
Steel & metals
Blast furnace and electric arc furnace off-gas is captured downstream of existing gas cleaning, integrating with the plant's current dust and heat recovery systems.
Flue CO2 concentration: 20–27%
Power generation
Post-combustion capture retrofits onto gas and biomass plants, sized to a variable load profile rather than a constant baseload assumption.
Flue CO2 concentration: 4–14%
Chemicals
Many chemical processes already produce a near-pure CO2 byproduct stream — a natural fit for compression and reuse with minimal additional separation.
Flue CO2 concentration: up to 95%
Waste-to-energy
Compact, skid-mounted sorbent units suit the smaller, more variable footprint typical of waste-to-energy and district heat plants.
Flue CO2 concentration: 8–14%
Marine & shipping
Shipboard capture units target auxiliary engine exhaust in port and at low speed, with captured CO2 offloaded at berth for onward processing.
Flue CO2 concentration: 5–12%
Cement kiln retrofit, Unit 3
A mid-size cement line brought a solvent-based capture skid online in under 14 months without interrupting production, hitting 92% capture during commissioning.