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High-efficiency separation and extraction of naphthenic acid from high acid oils using imidazolium carbonate ionic liquids 被引量:1

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摘要 N-alkyl imidazolium carbonate ionic liquids were employed to separate and recover naphthenic acid from model oils.The effects of the cationic and anionic structures of ionic liquids and operating conditions on the deacidification performance were investigated.The deacidification performance of traditional organic solvents was also investigated for comparison.The results indicated that the naphthenic acid could be completely removed from the model oil with a small mass ratio of ionic liquid to oil.The extracted naphthenic acid was regenerated with a recovery of up to 92%.In addition,imidazolium carbonate ionic liquids could be successfully regenerated and recycled.The mechanism of interaction between imidazole ionic liquids and the naphthenic acid molecules were explained by Gauss calculation.
出处 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2022年第1期252-259,共8页 中国化学工程学报(英文版)
基金 support of the National Natural Science Foundation of China(22078359,21276275).
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