Base-Catalyzed Depolymerization of Lignin: Separation of Monomers

Alexandre Vigneault; David Johnson; Esteban Chornet

doi:10.1002/cjce.5450850612

Base-Catalyzed Depolymerization of Lignin: Separation of Monomers

Alexandre Vigneault, David Johnson, Esteban Chornet

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

Abstract

In our quest for fractionating lignocellulosic biomass and valorizing specific constitutive fractions, we have developed a strategy for the separation of 12 added value monomers generated during the hydrolytic based-catalyzed depolymerization of a Steam Exploded Aspen Lignin. The separation strategy combines liquid-liquid-extraction (LLE), followed by vacuum distillation, liquid chromatography (LC) and crystallization. LLE, vacuum distillation and flash LC were tested experimentally. Batch vacuum distillation produced up to 4 fractions. Process simulation confirmed that a series of 4 vacuum distillation columns could produce 5 distinct monomer streams, 3 of which require further chromatography and crystallization for purification.

Original language	American English
Pages (from-to)	906-916
Number of pages	11
Journal	Canadian Journal of Chemical Engineering
Volume	85
Issue number	6
DOIs	https://doi.org/10.1002/cjce.5450850612
State	Published - 2007

NREL Publication Number

NREL/JA-270-40750

Keywords

biochemicals
lignin upgrading
lignocellulosic biomass conversion via fractionation
monomer

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10.1002/cjce.5450850612

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abstract = "In our quest for fractionating lignocellulosic biomass and valorizing specific constitutive fractions, we have developed a strategy for the separation of 12 added value monomers generated during the hydrolytic based-catalyzed depolymerization of a Steam Exploded Aspen Lignin. The separation strategy combines liquid-liquid-extraction (LLE), followed by vacuum distillation, liquid chromatography (LC) and crystallization. LLE, vacuum distillation and flash LC were tested experimentally. Batch vacuum distillation produced up to 4 fractions. Process simulation confirmed that a series of 4 vacuum distillation columns could produce 5 distinct monomer streams, 3 of which require further chromatography and crystallization for purification.",

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AU - Chornet, Esteban

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AB - In our quest for fractionating lignocellulosic biomass and valorizing specific constitutive fractions, we have developed a strategy for the separation of 12 added value monomers generated during the hydrolytic based-catalyzed depolymerization of a Steam Exploded Aspen Lignin. The separation strategy combines liquid-liquid-extraction (LLE), followed by vacuum distillation, liquid chromatography (LC) and crystallization. LLE, vacuum distillation and flash LC were tested experimentally. Batch vacuum distillation produced up to 4 fractions. Process simulation confirmed that a series of 4 vacuum distillation columns could produce 5 distinct monomer streams, 3 of which require further chromatography and crystallization for purification.

KW - biochemicals

KW - lignin upgrading

KW - lignocellulosic biomass conversion via fractionation

KW - monomer

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JO - Canadian Journal of Chemical Engineering

JF - Canadian Journal of Chemical Engineering

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ER -

Base-Catalyzed Depolymerization of Lignin: Separation of Monomers

Abstract

NREL Publication Number

Keywords

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