A novel gas purification system for biologically produced gases (original) (raw)
2010, Journal of Cleaner Production
A novel gas purification system employing membrane contactors with dense membranes in the absorption as well as the desorption unit has been tested concerning the separation efficiency of CO 2 . The separation efficiency of potassium carbonate (K 2 CO 3 ) promoted by piperazine (PZ) as absorption medium has been tested in the absorption unit. Since the absorbent will be regenerated in the desorption unit, the influence of temperature, sweep flow rate and absorbent type (0.5 M K 2 CO 3 and 0.5 M K 2 CO 3 /0.5 M PZ) on the separation efficiency of CO 2 in the desorption unit has been investigated. Desorption by vacuum has been considered as well.
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