Biocatalyst-based CO2 stripping techniques and related systems
AssigneeSaipem S.P.A.
InventorsSylvie Fradette, Richard Surprenant, Eric Madore, Hana Bouteldja, Sylvain Lefebvre, Ferrere J. Clerveaux
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Abstract
A method for stripping CO2 from a biocatalyst-containing CO2-rich absorption solution to produce a biocatalyst-containing CO2-lean absorption solution and a CO2-rich gas is provided. The method includes generating a stripping gas from a portion of the biocatalyst-containing CO2-lean absorption solution in a stripping gas generation unit, and contacting the biocatalyst-containing CO2-rich absorption solution with the stripping gas in a gas-liquid contactor to produce the CO2-lean absorption solution and the CO2-rich gas.
Claims15
A method for stripping CO2 from a biocatalyst-containing CO2-rich absorption solution to produce a biocatalyst-containing CO2-lean absorption solution and a CO2-rich gas, the method comprising:
- generating a stripping gas from a portion of the biocatalyst-containing CO2-lean absorption solution in a stripping gas generation unit, and
- contacting the biocatalyst-containing CO2-rich absorption solution with the stripping gas in a gas-liquid contactor to produce the CO2-lean absorption solution and the CO2-rich gas;
- wherein the biocatalyst is a carbonic anhydrase in a soluble form, freely dissolved in the absorption solution such that the carbonic anhydrase in a soluble form flows in solution within the stripping gas generation unit and is maintained in soluble form throughout the flow of the absorption solution in the stripping gas generation unit, and wherein the stripping gas generation unit is a falling film evaporator.
A method for stripping CO2 from a biocatalyst-containing CO2-rich absorption solution to produce a biocatalyst-containing CO2-lean absorption solution and a CO2-rich gas, the method comprising:
- generating a stripping gas from the biocatalyst-containing CO2-rich absorption solution, and
- contacting the biocatalyst-containing CO2-rich absorption solution with the stripping gas in a gas-liquid contactor to produce the CO2-lean absorption solution and the CO2-rich gas;
- wherein the biocatalyst is a carbonic anhydrase in a soluble form, freely dissolved in the absorption solution such that the carbonic anhydrase in a soluble form flows in solution within the stripping gas generation unit and is maintained in soluble form throughout the flow of the absorption solution in the stripping gas generation unit, and wherein the stripping gas generation unit is a falling film evaporator.
Dependencies are inferred from the claim text.