fulltext.study @t Gmail

Butanol recovery from aqueous solution into ionic liquids by liquid–liquid extraction

Paper ID Volume ID Publish Year Pages File Format Full-Text
34952 45061 2010 5 PDF Available
Title
Butanol recovery from aqueous solution into ionic liquids by liquid–liquid extraction
Abstract

Biobutanol has currently attracted considerable attention as an alternative biofuel to the petroleum-derived fuel due to several advantages including high energy content, low water absorption and easy application to the existing gasoline infrastructure. However, its production has still faced many obstacles to overcome including lack of energy-efficient butanol separation process from fermentation broth. To solve this issue, the extraction behavior of butanol from aqueous media into a variety of imidazolium-based ionic liquids (ILs) was investigated by liquid–liquid extraction. To understand the effect of ILs properties, the solvent characteristics of ILs such as mutual solubility of feed solvent (water) and extraction solvent (IL), distribution coefficient of butanol between water and IL, selectivity, and extraction efficiency were correlated with hydrophobicity and polarity of ILs. The butanol distribution between ILs and water strongly depends on the hydrophobicity of anions of ILs followed by the hydrophobicity of cations of ILs. On the other hand, butanol extraction efficiency and selectivity depend on the polarity of ILs. Considering extraction efficiency and selectivity, [Tf2N]-based ILs among the tested ILs showed to be the best extract solvent for the recovery of butanol from aqueous media. Among the studied ILs, [Omim][Tf2N] showed the highest butanol distribution coefficient (1.939), selectivity (132) and extraction efficiency (74%) at 323.15 K, respectively.

Keywords
[Bmim]+, 1-butyl-3-methylimidazolium; [Hmim]+, 1-hexyl-3-methylimidazolium; [Omim]+, 1-methyl-3-octylimidazolium; [Pmim]+, 1-phenylpropyl-3-methylimidazolium; [BF4]−, tetrafluoroborate; [TfO]−, trifluoromethanesulfonate; [PF6]−, hexafluorophosphate; [Tf2N
First Page Preview
Butanol recovery from aqueous solution into ionic liquids by liquid–liquid extraction
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 45, Issue 12, December 2010, Pages 1899–1903
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us