2012•Renewable Energy ResourcesRequires access
Experimental study on the performance of aqueous sodium glycinate for biogas purification
Wenhai Liu
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Abstract
The optimum conditions of CO2 absorption by novel aqueous organic amine-sodium glycinate for biogas purification has been studied as well as the regeneration.The investigation of CO2 absorption by aqueous sodium glycinate with different concentrations(0.5～3 mol/L) on absorption rate and absorption load with absorption time was made,and the influence of gas rate,,gas load,temperature on absorption rate were discussed.The results showed that the aqueous sodium glycinate with higher concentration has a higher absorption capacity,whereas lower absorption load,the influence of gas rate on the absorption rate of aqueous sodium glycinate is significant and the influence of absorption temperature on the absorption rate of aqueous sodium glycinate is slight.In addition,the aqueous aqueous sodium glycinate could be regenerated at the temperature of 108 ℃ and the optimal regeneration time was 3 h.The regenerated performance maintained good and stable.