Co2 Solutions Inc.

Co2 Solution Inc.

C02 Solutions Inc.

Olivera Ceperkovic

Sylvie Fradette

Julie Gingras

Glenn R Kelly

Jonathan Carley

Norman Voyer

Normand Voyer

Geert F Versteeg

A formulation and process for capturing COuse an absorption mixture containing water, biocatalysts and a carbonate compound. The process includes contacting a CO-containing gas with the absorption mixture to enable dissolution and transformation of COinto bicarbonate and hydrogen ions, thereby producing a CO-depleted gas and an ion-rich solution, followed by subjecting the ion-rich solution to desorption. The biocatalyst improves absorption of the mixture comprising carbonate compounds and the carbonate compound promotes release of the bicarbonate ions from the ion-rich solution during desorption, producing a COgas stream and an ion-depleted solution.

[object Object]

A process for desorbing COgas from an ion-rich aqueous mixture comprising bicarbonate and hydrogen ions, includes providing micro-particles in the ion-rich aqueous mixture; and feeding the ion-rich aqueous mixture into a desorption reactor; the micro-particles comprising a support material and biocatalysts supported and stabilized by the support material and being sized and provided in a concentration in the desorption reactor such that the micro-particles are carried with the ion-rich aqueous mixture to promote transformation of the bicarbonate and hydrogen ions into COgas and water, thereby producing a COgas stream and an ion-depleted solution.

A formulation and process for capturing COuse an absorption mixture containing water, biocatalysts and an absorption compound selected from dimethylmonoethanolamine (DMMEA), diethylmonoethanolamine (DEMEA), and dimethylglycine. The process may include contacting a CO-containing gas with the absorption mixture to enable dissolution and transformation of COinto bicarbonate and hydrogen ions, thereby producing a CO-depleted gas and an ion-rich solution, followed by subjecting the ion-rich solution to desorption.

A process for capturing COincludes contacting a CO-containing gas with an absorption mixture optionally within a packed reactor is provided. The absorption mixture includes a liquid solution and micro-particles. The micro-particles include a support material and biocatalyst supported by the support material and are sized and provided in a concentration such that the absorption mixture flows through the packed reactor and that the micro-particles are carried with the liquid solution to promote dissolution and transformation of COinto bicarbonate and hydrogen ions. The absorption mixture and micro-particles may be provided in an absorption reactor so as to be pumpable. Furthermore, a process for desorbing COgas from an ion-rich aqueous mixture includes providing biocatalytic micro-particles and feeding the mixture to a desorption reactor, to promote transformation of the bicarbonate and hydrogen ions into COgas and water.

Disclosed is a formulation for the absorption of CO, which comprises water, at least one COabsorption compound and a carbonic anhydrase as an activator to enhance the absorption capacity of the COabsorption compound. The invention also concerns the use of carbonic anhydrase, in a COabsorption solution to increase the COabsorption rate of such solution.

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Olivera Ceperkovic