Abstract

Nanosized calcium carbonate was prepared as a model product in a continuous gas–liquid membrane contactor for the first time. The effects of Ca(OH) 2 concentration, CO 2 partial pressure and liquid flow velocity on the absorption rate were estimated according to the gas–liquid reaction theory. The results showed that, with the increase in Ca(OH) 2 concentration, CO 2 partial pressure and liquid flow velocity, the absorption rate increased. The theoretical predictions were in agreement with the experimental data.

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