RE: Ccs31 Aug 2025 13:52
Carbon dioxide liquefaction only occurs above atmospheric pressure. At normal pressure it either exists as a solid or gas(Sublimation). Block's test run has injected a water, carbon dioxide mixture at high pressure. The mixture will consist of carbonic acid and excess liquid carbon dioxide ,it will be acidic .As the pressure drops some of the liquified CO2 will form a gas ,thus forming an aerosol .Aerosols are able to cover a much larger area than a liquid. The acidic aerosol should react with the zeolite matrix (alkaline?). The reactivity will depend upon the porosity /surface area and availability of Ca++ ions .Once calcium carbonate has formed it is a stable solid which is virtually insoluble.