Ionic liquids as media for biomass processing: opportunities and restrictions

被引：27

作者：

Schrems, Michael ^{[1
]}

Brandt, Agnieszka ^{[2
]}

Welton, Tom ^{[2
]}

Liebner, Falk ^{[1
]}

Rosenau, Thomas ^{[1
]}

Potthast, Antje ^{[1
]}

机构：

[1] Univ Nat Resources & Life Sci, Christian Doppler Lab Adv Cellulose Chem & Analyt, Dept Chem, A-1190 Vienna, Austria

[2] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

来源：

HOLZFORSCHUNG | 2011年 / 65卷 / 04期

关键词：

cellulose; cellulose degradation; Curie-point pyrolysis gas chromatography/mass spectrometry (Cu-Py-GC/MS); fractionation; ionic liquids (ILs); lignin; molecular weight distribution (MWD); renewable materials; size-exclusion chromatography (SEC); LIGNOCELLULOSIC MATERIALS; CELLULOSE; DISSOLUTION; WOOD; BEHAVIOR; SOLVENT;

D O I：

10.1515/HF.2011.099

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The present study provides insight into the dissolution behavior of renewable materials in ionic liquids. Beech, spruce and rye straw were dissolved in 1-ethyl-3-methylimidazolium acetate as the ionic liquid of choice, which is currently one of the most frequently used cation-anion combinations among ionic liquids for biomaterial processing. The dissolution was followed by selective precipitation of cellulose, hemicelluloses, and lignin. The obtained lignin was analyzed with Curie-point pyrolysis gas chromatography/mass spectrometry (Cu-Py-GC/MS) and the separated cellulose/hemicellulose fractions with gel permeation chromatography (GPC). Time dependence of the dissolution process was studied on rye straw, eucalyptus kraft pulp and beech sulfite pulp. The results show a changing dissolution profile over time, which is due to progressing degradation of the cellulose in the ionic liquid.

引用

页码：527 / 533

页数：7

共 28 条

[1]

BALENSIEFER T, 2008, Patent No. 2008090156

[2]

Balensiefer T., 2008, Method for producing glucose by enzymatic hydrolysis of cellulose that can be pretreated with an ionic liquid containing a polyatomic anion, Patent No. [WO2008/090155, 2008090155]

[3] Acylation and carbanilation of cellulose in ionic liquids [J].

Barthel, S ;

Heinze, T .

GREEN CHEMISTRY, 2006, 8 (03) :301-306

[4]

Busch Rainer, 2006, Biotechnology Journal, V1, P770, DOI 10.1002/biot.200600057

[5] Room temperature ionic liquids (RTILs): A new and versatile platform for cellulose processing and derivatization [J].

Cao, Yan ;

Wu, Jin ;

Zhang, Jun ;

Li, Huiquan ;

Zhang, Yi ;

He, Jiasong .

CHEMICAL ENGINEERING JOURNAL, 2009, 147 (01) :13-21

[6] Side reaction of cellulose with common 1-alkyl-3-methylimidazolium-based ionic liquids [J].

Ebner, Gerald ;

Schiehser, Sonja ;

Potthast, Antje ;

Rosenau, Thomas .

TETRAHEDRON LETTERS, 2008, 49 (51) :7322-7324

[7] Applications of ionic liquids in carbohydrate chemistry: A window of opportunities [J].

El Seoud, Omar A. ;

Koschella, Andreas ;

Fidale, Ludmila C. ;

Dorn, Susann ;

Heinze, Thomas .

BIOMACROMOLECULES, 2007, 8 (09) :2629-2647

[8]

Fort DA, 2007, GREEN CHEM, V9, P63, DOI 10.1039/B607614A

[9] Dissolution Behavior of Different Celluloses [J].

Henniges, Ute ;

Kostic, Mirjana ;

Borgards, Andrea ;

Rosenau, Thomas ;

Potthastt, Antje .

BIOMACROMOLECULES, 2011, 12 (04) :871-879

[10] Decomposition of a phenolic lignin model compound over organic N-bases in an ionic liquid [J].

Jia, Songyan ;

Cox, Blair J. ;

Guo, Xinwen ;

Zhang, Z. Conrad ;

Ekerdt, John G. .

HOLZFORSCHUNG, 2010, 64 (05) :577-580

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