现代化工
現代化工
현대화공
MODERN CHEMICAL INDUSTRY
2010年
4期
47-49
,共3页
竹浆纤维%水解%动力学参数
竹漿纖維%水解%動力學參數
죽장섬유%수해%동역학삼수
bamboo fiber%hydrolysis%kinetic parameters
探讨甲酸反应体系中,盐酸浓度、固液比、反应温度、反应时间对竹浆纤维水解的影响,以及在该体系中葡萄糖的降解情况,得到了竹浆纤维素在含4%盐酸的甲酸体系中不同温度下(55~75℃)的水解速率和葡萄糖的降解速率.竹浆纤维水解的Arrhenius方程指前因子为1.48×10~(14) h~(-1),葡萄糖降解的Arrhenius方程指前因子为2.32×10~(20) h~(-1).竹浆纤维水解的表观活化能为87.65 kJ/mol,葡萄糖降解的表观活化能为141.44 kJ/mol.
探討甲痠反應體繫中,鹽痠濃度、固液比、反應溫度、反應時間對竹漿纖維水解的影響,以及在該體繫中葡萄糖的降解情況,得到瞭竹漿纖維素在含4%鹽痠的甲痠體繫中不同溫度下(55~75℃)的水解速率和葡萄糖的降解速率.竹漿纖維水解的Arrhenius方程指前因子為1.48×10~(14) h~(-1),葡萄糖降解的Arrhenius方程指前因子為2.32×10~(20) h~(-1).竹漿纖維水解的錶觀活化能為87.65 kJ/mol,葡萄糖降解的錶觀活化能為141.44 kJ/mol.
탐토갑산반응체계중,염산농도、고액비、반응온도、반응시간대죽장섬유수해적영향,이급재해체계중포도당적강해정황,득도료죽장섬유소재함4%염산적갑산체계중불동온도하(55~75℃)적수해속솔화포도당적강해속솔.죽장섬유수해적Arrhenius방정지전인자위1.48×10~(14) h~(-1),포도당강해적Arrhenius방정지전인자위2.32×10~(20) h~(-1).죽장섬유수해적표관활화능위87.65 kJ/mol,포도당강해적표관활화능위141.44 kJ/mol.
Bamboo fiber is hydrolyzed with formic acid and hydrochloric acid under mild conditions.The effects of concentration of hydrochloric acid,the ratio of solid and liquor,temperature and reaction time,the concentration and degradation of glucose on hydrolysis of bamboo fiber are studied.The velocities of bamboo fiber hydrolysis and glucose degradation at various temperatures are obtained.The Arrhenius index of bamboo fiber hydrolysis and glucose degradation is 1.48×10~(14) h~(-1) and 2.32×10~(20) h~(-1),respectively.The activation energy of bamboo fiber hydrolysis and glucose degradation is 87.65 kJ/mol and 141.44 kJ/mol,respectively.