Post-Combustion Carbon Capture


Reigning technologies for post-combustion carbon capture and sequestration (CCS) are all based on absorption into solvents of one kind or another.

Proposed solvents include:

  • High-strength, corrosion-inhibited MEA (the industry benchmark)
  • AMP (2-amino-2-methyl-1-propanol) alone or piperazine-promoted (MHI solvent KS-1™)
  • MDEA promoted with piperazine
  • Amino acid salts such as sodium glycinate and potassium dimethyl glycinate (BASF)
  • Hot potassium carbonate, promoted with piperazine or other amines
  • High concentration (40 wt%) piperazine
  • Chilled ammonia (Alstom Power)
ProTreat software provides simulation capabilities in all of these carbon capture technologies (except chilled ammonia which is proprietary to Alstom Power).

ProTreat is the only gas treating simulator able to make the correct calculations for packing. Its mass- and heat-transfer rate-based model uses tower internals details not just for hydraulic rating, but for doing detailed absorption and stripping rate calculations. Its ability to predict the separation using random and structured packing makes ProTreat extremely reliable in carbon capture applications. No residence times, no ideal stages, no translation to real packing — only information you can read from a PFD and internals vendor's drawings. ProTreat provides extreme accuracy and confident prediction.

Pressure drop dictates that large-crimp structured packing will be used in CO2 capture. A 500 MW power station (1/8th the size of the world's largest coal-fired plant) would use 5,000 cubic meters of packing in a 25-m diameter column. And this is not a particularly large plant. Obviously, getting the mass transfer right can make a big difference even in just packing volume and cost. But it's even more important to get the solvent regeneration system right because that's where the bulk of the energy is consumed.

ProTreat simulation is used by many of the leading research groups in CCS and by many of the organizations currently building pilot- and full-scale carbon capture plants. It is the industry standard in this area.  ProTreat is the industry's most advanced simulation tool for carbon capture studies. It turns your drawing-board design into a virtual plant.