Carbon Capture Utilization & Storage

Cryogenic Carbon Capture™ (CCC) is a post-combustion technology that reduces carbon emissions from fossil-fueled power plants and integrates seamlessly with Chart's principal equipment.

Cryogenic Carbon Capture™ (CCC) has the potential to reduce carbon emissions from fossil fueled power plants by 95 to 99% with half the cost and energy of other carbon capture processes. In addition, CCC also removes harmful pollutants, such as SOx, NOx and mercury.

Sustainable Energy Solutions (SES), the company that developed CCC, was acquired by Chart in 2021.

Cryogenic Carbon Capture technology

Conceptually Simple and Proven Process

Cryogenic Carbon Capture technology

  • Average capture >95% with thousands of hours of cumulative test data from exhaust sources including natural gas, coal, cement and biomass
  • Lowest cost and easiest retrofit carbon capture technology
  • Integrated grid scale energy storage
  • Produces high purity liquid CO2

"Of all these [carbon capture] processes, I regard the CCC process to have the greatest potential." Howard Herzog, MIT Energy Initiative

CCC is a perfect fit with Chart's IPSMR® process technology, brazed aluminum heat exchangers, liquid CO2 storage tanks and transportables providing liquid CO2 for end-use applications.

How CCC Works

Cryogenic Carbon Capture technology

Cryogenic Carbon Capture can be implemented as a retrofit or greenfield installation in one of 3 ways:

  • Compressed Flue Gas™ (CCC-CFG) - the flue gas is moderately compressed, cooled, then expanded to remove 99% of carbon dioxide with only minimal refrigeration required
  • External Cooling Loop (CCC-ECL) - the flue gas is regeneratively cooled so that 99% of the incoming carbon dioxide freezes to solid dry ice. Melted dry ice is delivered at pipeline conditions without requiring compression
  • Energy Storing (CCC-ES) - is a special implementation that enables efficient grid scale energy storage and carbon capture with little to no effect on peak plant capacity. Parasitic load can be rescheduled to times when demand is low or when intermittent (renewable) sources are available

CCC uses phase change to separate carbon dioxide and other pollutants from exhaust and process gases.

CO2 is refrigerated to around -140°C and desublimates (changes from a gas to a solid). Solid CO2 is then separated from the remaining gas, pressurized, melted and delivered at pipeline pressure.

Captured CO2 can be used in a range of processes, from enhanced oil recovery to beverage carbonation.

The sublimation process also captures other harmful pollutants, such as NOx, SOx and mercury, hence in a greenfield system, CCC negates the need for a separate pollutant removal system.

Improved Efficiency

CCC captures carbon for a fraction of the cost and energy of current methods:

  • Achieves the same reduction in carbon emissions of a sate of the art amine absorption process for around half the cost per tonne of avoided CO2
  • Requires only half the energy as a state of the art amine process. The energy requirement of a carbon capture system is typically expressed as a percentage of the power generated by the plant and referred to as parasitic load. The parasitic load of CCC is 14% versus 28% for an amine absorption process
  • CCC's 'Energy Storing' implementation also enables highly efficient grid scale energy storage with better use of renewable energy sources that virtually eliminates the parasitic load during peak demand

Cryogenic Carbon Capture technology

Steam Cycle Integration - warm exhaust gas entering the CCC process can first be used to heat the feed water to the boiler. This boosts the steam cycle efficiency and power output of the plant and delivers more power for the same initial investment.

SES and partners teamed up to deliver the cement industry's first integrated carbon capture pilot plant.

Learn more about Chart's carbon capture technology solutions

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