Open AccessOptimization of Removal of Lignin from Corn Stover by Urea
Author(s) -
Shuang Wang,
Hongxia Li,
Wen Wang,
Junjie Zhang,
Hongyu Li
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/358/3/032061
Subject(s) - corn stover , urea , lignin , stover , hemicellulose , chemistry , cellulose , degradation (telecommunications) , pulp and paper industry , agronomy , fermentation , organic chemistry , crop , biology , telecommunications , computer science , engineering
Corn stover in rich source was taken as the research object. The pre-treatment process of corn stover by urea was proposed. The effects of urea amount, temperature, time and the ratio of solid-liquid on the degradation of lignin were investigated. The results showed that urea had a definite degradation effect on lignin and hemicellulose in corn stover. The optimum experimental conditions were as follows: 8g corn stover, 0.8g urea and 80ml water were added in triangle bottle. The degradation was carried out for 4 h shocked with 170 r/min speed in a thermostatic water bath oscillator at 60°C temperature. The degradation rate of lignin was about 40%. The regent of urea was environment friendly and the method was prospect for practical application.