ScholarLens Back to search
2001•Journal of Chemical Industry and EngineeringRequires access

DELIGNIFICATION OF WHEAT STRAW BY NaOH-O_2-ANTHRAQUINONE COOKING

Jian Zhang

Open publisher page 0 citations

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.

About this research paper

What this paper is about

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.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available 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.

Key concepts: Lignin, Anthraquinone, Chemistry, Cellulose, Straw, Oxygen, Molecule, Organic chemistry

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
DELIGNIFICATION OF WHEAT STRAW BY NaOH-O_2-ANTHRAQUINONE COOKING — Research Paper | ScholarLens