CO 2 to compression
Treated ue gas
Sludge e uent
Condenser
Thermal reclaimer
Re ux accumulator
Wash water cooler
Wash water section
Filter
CO stripper
Lean amine cooler
Main absorption section
Re ux pumps
Wash water pumps
Lean amine feed pumps
CO MVR compressor
Lean amine tank
Main absorption section
Reboilers
Steam from OSBL
Intercooler
Flue gas from pre- scrubber
Lean rich exchanger
Steam condensate level pot
Intercooled section
Intercooler pumps
CO absorber
Steam condensate ash pot
Lean amine pumps
Condensate to OSBL
Rich amine pumps
Figure 1 Cansolv CO 2 - simplified PFD
to continuously enhance CC solutions to make projects affordable. Technip Energies and Shell have a team for project delivery and integration of a joint axis of R&D efforts, enabling us to deliver both capital and operating cost reductions in our combined offerings for CC plants. The Cansolv CO₂ capture technology, integrated into the Shell technology portfolio through the acquisition by Shell of Cansolv Technologies Inc. in 2008, is positioned among the leading technologies for CO₂ removal (Shell, 2022). Through projects like SaskPower’s Boundary Dam, the technology has been deployed at the large scale (1 MT/y and above) that
characterises many CCUS projects and also at the much smaller scale expected to characterise many CO₂ capture applications in the future. The Cansolv CO₂ capture system is an amine- based technology using Shell’s proprietary Cansolv DC-103 absorbent. The process line- up is shown in Figure 1 , and relies on standard equipment (vessels, pumps, exchangers) and mass transfer internals (structured packing). The CO₂ is captured from the cooled gas by contact with the aqueous (lean) amine absorbent in the absorber, where multiple structured packing beds are used to promote mass transfer while keeping pressure drop low. Capture efficiencies of up to 99% can be achieved (depending on the application),
Figure 2 SaskPower Boundary Dam Capture Project in Canada
Courtesy of Shell
www.decarbonisationtechnology.com
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