During the separation and processing phase, the CO2 enriched solvent is pumped to a stripper to regenerate CO2 gas, and lean solvent. CO2 gas is then treated, and prepared for sequestration or industrial commercial usage.
Howden is a world leader in Mechanical Vapour Compressor (MVR) technologies, which is a key element in the stripping of CO2 from the solvent that captured the Carbon Dioxide in previous stages. Roots Blowers and Howden Turbo Compressors/blowers form the basis of the MVR system which enables CO2 to be extracted for re-use.
Scrubbing, Drying and Adsorption
Once the CO2 has been extracted, it is compressed using a Howden screw or centrifugal compressor in order to remove any remaining water or chemicals from the gas stream using Pressure Swing Adsorption (PSA).
Prior to sequestration or usage, the CO2 is condensed. The condenser will require a Howden screw compressor for the refrigeration cycle.