Efficient absorption of SO₂ with low-partial pressures by environmentally benign functional deep eutectic solvents

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• 作者：Kai Zhang^a ; Shuhang Ren^a ; Yucui Hou^b ; Weize Wu^a ; ^{wzwu@mail.buct.edu.cn} ; ^{weizewu@yahoo.com}
• 关键词：Absorption ; SO2 ; Deep eutectic solvent ; Functionalization ; Mechanism
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：324
• 期：part_PB
• 页码：457-463
• 全文大小：893 K
• 卷排序：324

文摘

Deep eutectic solvents (DESs) were designed with a function to absorb low-conc. SO2. Betaine(Bet) and l-carnitine(L-car) with a functional group were used as H-bond acceptor. Bet + ethylene glycol (EG) DES and L-car + EG DES are environmentally benign. L-car + EG DES can absorb 0.644 mol SO2 per mole L-car (0.37% SO2). L-car + EG DES is a promising absorbent for SO2 capture.