期刊
SEPARATION SCIENCE AND TECHNOLOGY
卷 53, 期 14, 页码 2150-2158出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2018.1446026
关键词
Deep eutectic solvent; SO2; absorption; phenol
资金
- Natural Science Foundation of Zhejiang Province [LY17B060010]
Six renewable DESs prepared from choline chloride (CC) and phenols (guaiacol, GC; cardanol, CL) with molar ratios of phenols to CC of 3:1, 4:1 and 5:1 were investigated to absorb SO2 at 293.15-323.15K and 0-1.0 bar. Results showed that DESs demonstrated satisfactory SO2 absorption performance, and GC-CC (3:1) exhibited the maximum absorption capacity of 0.528g SO2 per g DES. The SO2 enriched DESs could be easily regenerated and recycled five times. Moreover, the DESs exhibited high selectivity of SO2/CO2. Present DESs seem to be promising absorbents for SO2 due to good performance.
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