CO2 Solutions Announces Allowance of U.S. Patent

The company has received a notice of allowance for the patent, "Process for Capturing CO₂ from a Gas using Carbonic Anhydrase and Potassium Carbonate."

The patent adds more depth to CO₂ Solutions' already extensive U.S. patent portfolio, providing broad coverage for a carbonic anhydrase accelerated processes for carbon capture using a potassium carbonate solution. Potassium carbonate is a highly stable and benign CO₂ capture solvent. Unlike amine-based capture processes, it has no toxic degradation products or waste issues. Additionally, the company says its proprietary technology significantly reduces operating costs relative to amine-based systems by using low-grade nil-value heat for solvent regeneration, rather than high-cost steam. CO₂ Solutions believes the patent will have significant value especially relative to the use of carbonic anhydrase to improve CO₂ absorption and desorption in a CO₂ capture process based on the use of potassium carbonate solutions.

Evan Price, President and Chief Executive Officer of CO₂ Solutions, stated, "This patent is yet another element in our robust intellectual property portfolio which we believe effectively covers all viable routes to commercialization of carbonic anhydrase enzyme-based systems for carbon capture." (Carbon Capture Journal)