The Pyrolysis Behavior of Alkali Lignin Oxygenized by Hydrogen Peroxide in Ionic Liquid 1-Butyl-3-Methylimidazolium Chloride ([BMIm]Cl)

Zhong Lian Yang; Ming Qiang Chen; Zhong Yi Luan; Wen Tao Zhang

doi:10.4028/www.scientific.net/AMM.598.86

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 598The Pyrolysis Behavior of Alkali Lignin Oxygenized...

The Pyrolysis Behavior of Alkali Lignin Oxygenized by Hydrogen Peroxide in Ionic Liquid 1-Butyl-3-Methylimidazolium Chloride ([BMIm]Cl)

Abstract:

In order to make better use of lignin, a mixed solution with isopyknic hydrogen peroxide 30% aqueous solution and an ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIm]Cl) was used to oxygenize alkali lignin from black liquor. The pyrolysis behavior of the treated alkali lignin (Regenerated ALG) was investigated via TGA. The kinetic controlling temperature range of the Regenerated ALG pyrolysis is between 533K and 649K approved by TG/DTG/DTA data, and the dominated pyrolysis is occurred below 574.7K, which was calculated from a kinetics model using Coats-Redfern method with a first order pyrolysis reaction. The activation energy of the Regenerated ALG also reached up to 105.675kJ/mol, which is 2.2 times greater than the non-treated one.

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Applied Mechanics and Materials (Volume 598)

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86-89

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https://doi.org/10.4028/www.scientific.net/AMM.598.86

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Online since:

July 2014

Authors:

Zhong Lian Yang*, Ming Qiang Chen, Zhong Yi Luan, Wen Tao Zhang

Keywords:

Alkali Lignin, Ionic Liquid (IL), Oxygenization, Pyrolysis

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