| 麦草新氨法蒸煮脱木素动力学研究 |
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| 引用本文： | 苏玉,黄国林,冯洪健.麦草新氨法蒸煮脱木素动力学研究[J].江西化工,2014(4):109-112. |
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| 作者姓名： | 苏玉 黄国林 冯洪健 |
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| 作者单位： | 东华理工大学化学生物与材料科学学院,江西南昌,330013 |
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| 摘 要： | 在合适的蒸煮工艺条件下,研究了麦草NH4OH-KOH-AQ法制浆过程脱木素动力学。实验结果表明,在大量脱木素阶段,脱木素反应对残余木素呈表观一级、对OH-呈0.38级,反应的活化能为44.12 k J/mol。脱木素速度方程为:-dL/dt=85.14exp(-5309/T)LCOH-0.38。
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| 关 键 词： | NH4OH-KOH-AQ法制浆 反应动力学 |
Reaction kinetics in NH4 OH-KOH-AQ pulping of wheat straw |
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| SU Yu,HUANG Guo-lin,FENG Hong-jian.Reaction kinetics in NH4 OH-KOH-AQ pulping of wheat straw[J].Jiangxi Chemical Industry,2014(4):109-112. |
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| Authors: | SU Yu HUANG Guo-lin FENG Hong-jian |
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| Affiliation: | SU Yu;HUANG Guo-lin;FENG Hong-jian;School of biology,chemistry and material science,East China university of technology; |
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| Abstract: | The reaction kinetics of in NH_4 OH - KOH - AQ pulping of wheat straw were studied in pulping experiments car- ried out under constant and well - defined conditions. The results showed that the delignification during the initial delignifi- cation phase was found to be pseudo first order with respect to residual lignin and 0.38 with respect to residual alkali. The activation energy of the delignification reaction was 44.12 K J/tool and rate equation of delignification was-dL/dt=85. 14exp （-5309/T）LC_OH-^0.38 for first delignification phase. |
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| Keywords: | wheat straw NH40H ～ KOH reaction course reaction kinetics |
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