Production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin

Xu Zeng; Fangming Jin; Jianglin Cao; Guodong Yin; Yalei Zhang; Jianfu Zhao

doi:10.1063/1.3456359

Production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin

Xu Zeng, Fangming Jin, Jianglin Cao, Guodong Yin, Yalei Zhang, Jianfu Zhao

ENV - Environmental Studies for Advanced Society

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Citations (Scopus)

Abstract

The production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin, a kind of biomasses, was investigated using a batch reactor with H₂O₂ oxidant. Experiments were performed over a wide range of conditions with temperature varying from 260 to 320 °C, oxygen supply varying from 60% to 120%, and reaction time varying from 30 to 150 s. The highest yield of formic acid was 4.9% at 280 °C for 120 s with the additive ratio of H₂O₂ 100%. The highest value of acetic acid was 12.3% at 300 °C for 120 s with the additive ratio of H₂O ₂ 100%. Based on the intermediate products identified by GC/MS and HPLC, reaction pathways of alkali lignin are discussed. It was found that maleic acid and fumaric acid were two primary unsaturated intermediate products. The production of formic acid and acetic acid were come from the oxidative decomposition of intermediate products in the oxidation process. Increasing the formation of saturated dicarboxylic acids and glutaconic acid would enhance the acetic acid yield.

Original language	English
Title of host publication	2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy
Pages	384-387
Number of pages	4
DOIs	https://doi.org/10.1063/1.3456359
Publication status	Published - 2010 Dec 1
Event	2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy - Sanya, China Duration: 2009 Dec 7 → 2009 Dec 10

Publication series

Name	AIP Conference Proceedings
Volume	1251
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy
Country	China
City	Sanya
Period	09/12/7 → 09/12/10

Keywords

Acetic acid
Alkali lignin
Hydrothermal oxidation

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.3456359

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Cite this

Zeng, X., Jin, F., Cao, J., Yin, G., Zhang, Y., & Zhao, J. (2010). Production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin. In 2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy (pp. 384-387). (AIP Conference Proceedings; Vol. 1251). https://doi.org/10.1063/1.3456359

Production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin. / Zeng, Xu; Jin, Fangming; Cao, Jianglin; Yin, Guodong; Zhang, Yalei; Zhao, Jianfu.

2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy. 2010. p. 384-387 (AIP Conference Proceedings; Vol. 1251).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zeng, X, Jin, F, Cao, J, Yin, G, Zhang, Y & Zhao, J 2010, Production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin. in 2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy. AIP Conference Proceedings, vol. 1251, pp. 384-387, 2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy, Sanya, China, 09/12/7. https://doi.org/10.1063/1.3456359

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abstract = "The production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin, a kind of biomasses, was investigated using a batch reactor with H2O2 oxidant. Experiments were performed over a wide range of conditions with temperature varying from 260 to 320 °C, oxygen supply varying from 60% to 120%, and reaction time varying from 30 to 150 s. The highest yield of formic acid was 4.9% at 280 °C for 120 s with the additive ratio of H2O2 100%. The highest value of acetic acid was 12.3% at 300 °C for 120 s with the additive ratio of H2O 2 100%. Based on the intermediate products identified by GC/MS and HPLC, reaction pathways of alkali lignin are discussed. It was found that maleic acid and fumaric acid were two primary unsaturated intermediate products. The production of formic acid and acetic acid were come from the oxidative decomposition of intermediate products in the oxidation process. Increasing the formation of saturated dicarboxylic acids and glutaconic acid would enhance the acetic acid yield.",

keywords = "Acetic acid, Alkali lignin, Hydrothermal oxidation",

author = "Xu Zeng and Fangming Jin and Jianglin Cao and Guodong Yin and Yalei Zhang and Jianfu Zhao",

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AU - Zhang, Yalei

AU - Zhao, Jianfu

PY - 2010/12/1

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N2 - The production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin, a kind of biomasses, was investigated using a batch reactor with H2O2 oxidant. Experiments were performed over a wide range of conditions with temperature varying from 260 to 320 °C, oxygen supply varying from 60% to 120%, and reaction time varying from 30 to 150 s. The highest yield of formic acid was 4.9% at 280 °C for 120 s with the additive ratio of H2O2 100%. The highest value of acetic acid was 12.3% at 300 °C for 120 s with the additive ratio of H2O 2 100%. Based on the intermediate products identified by GC/MS and HPLC, reaction pathways of alkali lignin are discussed. It was found that maleic acid and fumaric acid were two primary unsaturated intermediate products. The production of formic acid and acetic acid were come from the oxidative decomposition of intermediate products in the oxidation process. Increasing the formation of saturated dicarboxylic acids and glutaconic acid would enhance the acetic acid yield.

AB - The production of formic acid and acetic acid by hydrothermal oxidation of alkali lignin, a kind of biomasses, was investigated using a batch reactor with H2O2 oxidant. Experiments were performed over a wide range of conditions with temperature varying from 260 to 320 °C, oxygen supply varying from 60% to 120%, and reaction time varying from 30 to 150 s. The highest yield of formic acid was 4.9% at 280 °C for 120 s with the additive ratio of H2O2 100%. The highest value of acetic acid was 12.3% at 300 °C for 120 s with the additive ratio of H2O 2 100%. Based on the intermediate products identified by GC/MS and HPLC, reaction pathways of alkali lignin are discussed. It was found that maleic acid and fumaric acid were two primary unsaturated intermediate products. The production of formic acid and acetic acid were come from the oxidative decomposition of intermediate products in the oxidation process. Increasing the formation of saturated dicarboxylic acids and glutaconic acid would enhance the acetic acid yield.

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