Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst

Shuanglan Hu; Ying Li; Wenyong Lou

doi:10.1016/j.cjche.2017.03.029

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Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst
- Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst
- 中国化学工程学报（英文版） 2017年25卷第10期页码：1519-1523
- Affiliations：
  
  1. School of Biosciences and Bioengineering, South China University of Technology,Guangzhou,China,510640
  2. School of Food Sciences and Engineering, South China University of Technology,Guangzhou,China,510640
  3. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology,Guangzhou,China,510640
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.03.029
  中图分类号：
- 纸质出版：2017
- Accepted：
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Shuanglan Hu, Ying Li, Wenyong Lou. Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst[J]. 中国化学工程学报（英文版）, 2017,25(10):1519-1523.

Shuanglan Hu, Ying Li, Wenyong Lou. Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst[J]. , 2017, 25(10): 1519-1523.
Shuanglan Hu, Ying Li, Wenyong Lou. Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst[J]. 中国化学工程学报（英文版）, 2017,25(10):1519-1523. DOI： 10.1016/j.cjche.2017.03.029.

Shuanglan Hu, Ying Li, Wenyong Lou. Novel efficient procedure for biodiesel synthesis from waste oils with high acid value using 1-sulfobutyl-3-methylimidazolium hydrosulfate ionic liquid as the catalyst[J]. , 2017, 25(10): 1519-1523. DOI： 10.1016/j.cjche.2017.03.029.

摘要

Abstract

Preparation of biodiesel from waste oils containing 72% of free fatty acids catalyzed by a novel Brønsted acidic ionic liquid 1-sulfobutyl-3-methylimidazolium hydrosulfate ([BHSO

MIM

]

[HSO

]

) was systematically investigated. The optimum molar ratio of methanol to waste oils

catalyst amount

reaction temperature and reaction time were 8/1

10% (based on the mass of waste oils)

140℃ and 6 h

respectively

under which the obtained yield of biodiesel reached 94.9%. Also

[BHSO

MIM

]

[HSO

]

as a catalyst still retained around 97% of its original catalytic activity after successive re-use of 5 batches (6 h per batch)

showing the excellent operational stability. Moreover

the acidic IL[BHSO

MIM

]

[HSO

]

was able to efficiently catalyze conversions of waste oils with different amounts of FFAs (free fatty acids) into biodiesel

and showed tremendous application potential. Therefore

an efficient and environmentally friendly catalyst is provided for the synthesis of biodiesel from waste oils with high acid value.

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