DELIGNIFICATION OF WHEAT STRAW BY NaOH-O<sub>2</sub>-ANTHRAQUINONE COOKING

ZHANG Jianan; LIU Dehua; ZHANG Xiaoyong; HAN Runlin; LI Zuohu

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DELIGNIFICATION OF WHEAT STRAW BY NaOH-O₂-ANTHRAQUINONE COOKING

更新时间：2025-12-10

- DELIGNIFICATION OF WHEAT STRAW BY NaOH-O₂-ANTHRAQUINONE COOKING
- CIESC Journal Issue 10, (2001)
- 作者机构：
  
  1. 清华大学化学工程系
  2. 中国科学院过程工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 October 2001，
  
  Published：25 October 2001
- 稿件说明：
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ZHANG Jianan, LIU Dehua, ZHANG Xiaoyong, et al. DELIGNIFICATION OF WHEAT STRAW BY NaOH-O₂-ANTHRAQUINONE COOKING[J]. CIESC Journal, 2001, (10).
DOI：

ZHANG Jianan, LIU Dehua, ZHANG Xiaoyong, et al. DELIGNIFICATION OF WHEAT STRAW BY NaOH-O₂-ANTHRAQUINONE COOKING[J]. CIESC Journal, 2001, (10). DOI：

摘要

Abstract

The delignification of wheat straw by alkali-oxygen-anthraquinone cooking was studied.The results showed that when temperature was 140℃

anthraquinone was 0.6%

the concentration of NaOH was 6%

the pressure of oxygen was 0.8 MPa

the ratio of solid(wheat straw) to liquid was 0.13

the rate of delignification and lignin in cellulose were 88% and 2.2%

respectively.The structures of lignin analyzed by means of IR and GC-MS spectrum indicated that there were syringyl and guaiacyl in lignin and the macro-molecules of lignin were changed into micro-molecules of lignin after cooking.

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DELIGNIFICATION OF WHEAT STRAW BY NaOH-O2-ANTHRAQUINONE COOKING

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DELIGNIFICATION OF WHEAT STRAW BY NaOH-O₂-ANTHRAQUINONE COOKING