Field Testing of Cryogenic Carbon Capture

Sustainable energy solutions has been developing Cryogenic Carbon Captureâ„¢ (CCC) since 2008. In that time CCC has developed two processes, the external cooling loop and compressed flue gas cryogenic carbon capture processes (CCC ECLâ„¢ and CCC CFGâ„¢ respectively).

The CCC ECLâ„¢ process has been scaled up to a 1 ton per day system. In this process the flue gas is cooled by an external refrigerant loop. SES has tested CCC ECLâ„¢ on real flue gas slip streams from subbituminous coal, bituminous coal, biomass, natural gas, shredded tires, and municipal waste fuels at field sites that include utility power stations, heating plants, cement kilns, and pilot-scale research reactors. The CO2 concentrations from these tests ranged from 5 to 22% on a dry basis. CO2 capture ranged from 95-99+% during these tests. Several other condensable species were also captured including NO2, SO2 and PMxx at 95+%. NO was also captured at a modest rate.

The CCC CFG™ process has been scaled up to a ½ ton per day system. This system has been tested on real flue gas streams including subbituminous coal, bituminous coal and natural gas at field sites that include utility power stations, heating plants, and pilot-scale research reactors. CO2 concentrations for these tests ranged from 5 to 15% on a dry basis. CO2 capture ranged from 95-99+% during these tests. Several other condensable species were also captured including NO2, SO2 and PMxx at 95+%. NO was also captured at 90+%. Mercury capture was also verified and the resulting effluent from CCC CFG™ was below a 1ppt concentration.

This presentation will focus on discussion of the capabilities of CCC, the results of field testing and future steps surrounding the development of this technology.