CapsolGT®Â
Simple cycle gas turbine carbon capture solution  Â
Generates additional electricity while capturing 95%+Â COâ‚‚Â from the exhaust gas
CapsolGT® captures carbon dioxide directly from the flue gases leaving a gas turbine's exhaust. The solution is applicable to simple cycle gas turbines (brownfield and greenfield) as well as low-carbon power plants (greenfield), such as those needed for the rising demand for data centres.
CapsolGT® simplifies the CO₂ capture process by utilising the waste heat from the gas turbine outlet, transferring it into electricity while capturing carbon. It also avoids the need for additional steam, and the costly investment in a separate steam boiler and steam turbine, as would be required for combined cycle gas turbine (CCGT) power plants with other capture solutions. CapsolGT® for gas turbines enables efficient CO₂ capture with minimal operational impact, helping operators meet decarbonisation targets.
Benefits of CapsolGT®Â
Captures 95%+Â COâ‚‚Â utilizing the safe solvent HPC (hot potassium carbonate)
Utilizes gas turbine waste heat to generate additional electricity while capturing COâ‚‚
Works with aero-derivative and industrial gas turbines (2–120 MW capacity)
Developed in collaboration with leading gas turbine manufacturers
Affordable, additional low-carbon electricity for data centers
Cost-effective decarbonization of simple cycle assets
Technology tailored for simple cycle gas turbines
CapsolGT® is tailored for simple cycle gas turbines (often referred to as open cycle gas turbines – OCGT).
The CapsolGT® system comprises a gas-to-gas heat exchanger, flue gas handling unit, CO₂ absorption and desorption columns, integrated heat recovery, and a CO₂ compression system. It is designed for full-scale processing of the gas turbine exhaust, capturing 95% of CO₂ and generating additional power for export.
Advantages of CapsolGT®
Unlike amine-based systems, when integrated with an existing high-temperature flue gas source, CapsolGT® eliminates the need for costly steam cycle implementation. Rather than imposing a parasitic load, the capture island can generate surplus power, even when CO₂ compression duty is accounted for, reducing plant complexity, permitting requirements, and operational costs. The system utilizes a widely available, low-cost, nontoxic, and non-volatile solvent with no harmful emissions, ensuring a superior environmental profile compared to conventional carbon capture technologies.
Additionally, overall plant cooling demand is significantly lower than that of other state-of-the-art systems, and the process can be designed to operate without the need for freshwater supply in a steady state.
Brownfield and greenfield potential
Brownfield: By leveraging available infrastructure, CapsolGT® integrates with existing OCGT plants with minimal modifications, reducing downtime and capital investment while maintaining plant flexibility. CapsolGT® utilizes waste heat from the gas turbines to generate additional electricity while capturing 95% of the CO₂.
Greenfield: For new power plant projects, CapsolGT® reduces system complexity by eliminating the need for additional steam systems and allowing a more efficient plant layout. This means fewer auxiliary systems, lower capital costs, and simplified operations from day one. As for brownfield projects, CapsolGT® utilizes waste heat from the gas turbines to generate additional electricity while capturing 95% of the CO₂. The technology can be applied to modular low-carbon power islands.
How CapsolGT® works
Highly efficient simple cycle gas turbines provide low CO₂ concentrated, hot flue gas streams with temperatures typically around 480-600 °C.
Before entering the core of the capture cycle, the flue gas heat is recovered, utilizing a pressurised clean gas absorber stream to generate an overall surplus of electricity. Compared with a typical combined cycle gas turbine plant (CCGT), CapsolGT® provides a low-cost, less complex, and high capture rate alternative. The overall cooling demand is also lower, and the capture plant can provide valuable heat at 30-105 °C if required.
The steam required for the capture process is exclusively generated within the CapsolGT® using internally sourced electricity. CapsolGT® therefore avoids the costly investment into a separate steam boiler, as would be required for combined cycle gas turbine power plants (CCGT) and other capture solutions. With less equipment, lower external cooling requirements, and water neutrality, CapsolGT® achieves higher overall plant efficiencies and can operate without an ongoing supply of external steam and water. Instead, significant amounts of water and waste heat can be accumulated and utilized within the system, for example for external steam production or water supply.
Low environmental impact
Minimal water consumption
Low degradation profile
- No thermal degradation or oxygen reaction.
No negative emissions
- Free of harmful nitrosamines and ammonia compounds.
Delivered together with leading turbine manufacturers
With the goal of adding significant value for power producers, helping them reduce cost and improve efficiency of future gas power plants.
