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

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトル2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy
ページ384-387
ページ数4
DOI
出版ステータスPublished - 2010 12 1
イベント2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy - Sanya, China
継続期間: 2009 12 72009 12 10

出版物シリーズ

名前AIP Conference Proceedings
1251
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy
CountryChina
CitySanya
Period09/12/709/12/10

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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