Extraction of lignin from lignocellulose at atmospheric pressure using alkylbenzenesulfonate ionic liquid

Suzie S Y Tan; Douglas R MacFarlane; Jonathan Upfal; Leslie A Edye; William O S Doherty; Antonio F Patti; Jennifer M Pringle; Janet L Scott

doi:10.1039/B815310H

Extraction of lignin from lignocellulose at atmospheric pressure using alkylbenzenesulfonate ionic liquid

Suzie S Y Tan, Douglas R MacFarlane, Jonathan Upfal, Leslie A Edye, William O S Doherty, Antonio F Patti, Jennifer M Pringle, Janet L Scott

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

139 Citations (SciVal)

Abstract

Lignocellulosic materials are a potentially valuable source of both aromatic compounds via the lignin component and sugars from the cellulose and hemicellulose components. However, efficient means of separating and depolymerising the components are required. An ionic liquid mixture containing the 1-ethyl-3-methylimidazolium cation and a mixture of alkylbenzenesulfonates with xylenesulfonate as the main anion was used to extract lignin from sugarcane plant waste at atmospheric pressure and elevated temperatures (170–190 °C). The lignin was recovered from the ionic liquid by precipitation, allowing the ionic liquid to be recycled. An extraction yield exceeding 93% was attained. The lignin produced had a molecular weight of 2220 g/mol after acetylation. The regenerated ionic liquid showed good retention of structure and properties. The other product of the extraction was a cellulose pulp, which can be used in further processing.

Original language	English
Pages (from-to)	339-345
Number of pages	7
Journal	Green Chemistry
Volume	11
Issue number	3
Early online date	6 Feb 2009
DOIs	https://doi.org/10.1039/B815310H
Publication status	Published - Mar 2009

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10.1039/B815310H

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title = "Extraction of lignin from lignocellulose at atmospheric pressure using alkylbenzenesulfonate ionic liquid",

abstract = "Lignocellulosic materials are a potentially valuable source of both aromatic compounds via the lignin component and sugars from the cellulose and hemicellulose components. However, efficient means of separating and depolymerising the components are required. An ionic liquid mixture containing the 1-ethyl-3-methylimidazolium cation and a mixture of alkylbenzenesulfonates with xylenesulfonate as the main anion was used to extract lignin from sugarcane plant waste at atmospheric pressure and elevated temperatures (170–190 °C). The lignin was recovered from the ionic liquid by precipitation, allowing the ionic liquid to be recycled. An extraction yield exceeding 93% was attained. The lignin produced had a molecular weight of 2220 g/mol after acetylation. The regenerated ionic liquid showed good retention of structure and properties. The other product of the extraction was a cellulose pulp, which can be used in further processing.",

author = "Tan, {Suzie S Y} and MacFarlane, {Douglas R} and Jonathan Upfal and Edye, {Leslie A} and Doherty, {William O S} and Patti, {Antonio F} and Pringle, {Jennifer M} and Scott, {Janet L}",

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T1 - Extraction of lignin from lignocellulose at atmospheric pressure using alkylbenzenesulfonate ionic liquid

AU - Tan, Suzie S Y

AU - MacFarlane, Douglas R

AU - Upfal, Jonathan

AU - Edye, Leslie A

AU - Doherty, William O S

AU - Patti, Antonio F

AU - Pringle, Jennifer M

AU - Scott, Janet L

PY - 2009/3

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N2 - Lignocellulosic materials are a potentially valuable source of both aromatic compounds via the lignin component and sugars from the cellulose and hemicellulose components. However, efficient means of separating and depolymerising the components are required. An ionic liquid mixture containing the 1-ethyl-3-methylimidazolium cation and a mixture of alkylbenzenesulfonates with xylenesulfonate as the main anion was used to extract lignin from sugarcane plant waste at atmospheric pressure and elevated temperatures (170–190 °C). The lignin was recovered from the ionic liquid by precipitation, allowing the ionic liquid to be recycled. An extraction yield exceeding 93% was attained. The lignin produced had a molecular weight of 2220 g/mol after acetylation. The regenerated ionic liquid showed good retention of structure and properties. The other product of the extraction was a cellulose pulp, which can be used in further processing.

AB - Lignocellulosic materials are a potentially valuable source of both aromatic compounds via the lignin component and sugars from the cellulose and hemicellulose components. However, efficient means of separating and depolymerising the components are required. An ionic liquid mixture containing the 1-ethyl-3-methylimidazolium cation and a mixture of alkylbenzenesulfonates with xylenesulfonate as the main anion was used to extract lignin from sugarcane plant waste at atmospheric pressure and elevated temperatures (170–190 °C). The lignin was recovered from the ionic liquid by precipitation, allowing the ionic liquid to be recycled. An extraction yield exceeding 93% was attained. The lignin produced had a molecular weight of 2220 g/mol after acetylation. The regenerated ionic liquid showed good retention of structure and properties. The other product of the extraction was a cellulose pulp, which can be used in further processing.

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UR - http://dx.doi.org/10.1039/B815310H

U2 - 10.1039/B815310H

DO - 10.1039/B815310H

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EP - 345

JO - Green Chemistry

JF - Green Chemistry

SN - 1463-9262

IS - 3

ER -

Extraction of lignin from lignocellulose at atmospheric pressure using alkylbenzenesulfonate ionic liquid

Abstract

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