Desulfurization of Diesel Fuel by Extraction with[BF4]--based Ionic Liquids

›› 2008, Vol. 16 ›› Issue (6): 881-884.

• SEPARATION SCIENCE & ENGINEERING • Previous Articles Next Articles

Desulfurization of Diesel Fuel by Extraction with[BF₄]^--based Ionic Liquids

CHU Xuemei, HU Yufeng, LI Jiguang, LIANG Qianqing, LIU Yansheng, ZHANG Xianming, PENG Xiaoming, YUE Wenjia

State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China

Received:2008-01-30 Revised:2008-06-13 Online:2008-12-28 Published:2008-12-28
Supported by:
Supported by the National Natural Science Foundation of China (40673043, 20576073), CNPC Innovation Fund (04E7031), and the Program for New Century Excellent Talents in University of Ministry of Education of China (NCET-06-0088)

Desulfurization of Diesel Fuel by Extraction with[BF₄]^--based Ionic Liquids

褚雪梅, 胡玉峰, 李吉广, 梁倩卿, 刘艳升, 张先明, 彭效明, 岳文佳

State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China

通讯作者: HU Yufeng,E-mail:huyf3581@sina.com
基金资助:
Supported by the National Natural Science Foundation of China (40673043, 20576073), CNPC Innovation Fund (04E7031), and the Program for New Century Excellent Talents in University of Ministry of Education of China (NCET-06-0088)

Abstract

Abstract: The extractive removal of sulfur compounds(S-compounds)from Dongying and Liaohe diesel fuels with[BF₄] -based ionic liquids were systematically investigated.The results show that the absorption capacity of an ionic liquid for the S-compounds in diesel fuels relies on its structure and its size.In the case of the two examined diesel fuels,both elongating the cation tail length and increasing the mass ratio of ionic liquid/diesel fuel promote the desulfurization ability of the examined ionic liquids.The results also show that imidazolium-based ionic liquids display higher extraction efficiencies than pyridinium-based ionic liquids,presumably owing to the fact that the rings of the S-compounds are similar to the imidazolium head ring.With the 1:1 mass ratio of ionic liquid/diesel fuel,the rates of the first desulfurization of Dongying and Liaohe diesel fuels using[C₈mim][BF₄]amount to 29.96% and 39.76%,suggesting that[C₈mim][BF₄]is a promising extractant for desulfurization of these diesel fuels.

Key words: desulfurization, diesel fuel, ionic liquid

摘要： The extractive removal of sulfur compounds(S-compounds)from Dongying and Liaohe diesel fuels with[BF₄] -based ionic liquids were systematically investigated.The results show that the absorption capacity of an ionic liquid for the S-compounds in diesel fuels relies on its structure and its size.In the case of the two examined diesel fuels,both elongating the cation tail length and increasing the mass ratio of ionic liquid/diesel fuel promote the desulfurization ability of the examined ionic liquids.The results also show that imidazolium-based ionic liquids display higher extraction efficiencies than pyridinium-based ionic liquids,presumably owing to the fact that the rings of the S-compounds are similar to the imidazolium head ring.With the 1:1 mass ratio of ionic liquid/diesel fuel,the rates of the first desulfurization of Dongying and Liaohe diesel fuels using[C₈mim][BF₄]amount to 29.96% and 39.76%,suggesting that[C₈mim][BF₄]is a promising extractant for desulfurization of these diesel fuels.

关键词: desulfurization, diesel fuel, ionic liquid

CHU Xuemei, HU Yufeng, LI Jiguang, LIANG Qianqing, LIU Yansheng, ZHANG Xianming, PENG Xiaoming, YUE Wenjia. Desulfurization of Diesel Fuel by Extraction with[BF₄]^--based Ionic Liquids[J]. , 2008, 16(6): 881-884.

褚雪梅, 胡玉峰, 李吉广, 梁倩卿, 刘艳升, 张先明, 彭效明, 岳文佳. Desulfurization of Diesel Fuel by Extraction with[BF₄]^--based Ionic Liquids[J]. , 2008, 16(6): 881-884.

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Desulfurization of Diesel Fuel by Extraction with[BF₄]^--based Ionic Liquids

Desulfurization of Diesel Fuel by Extraction with[BF₄]^--based Ionic Liquids

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