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| Delignification Kinetics of Active Oxygen Solid Base Cooking of Bagasse |
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| DOI： |
| Key Words:bagasse； active oxygen solid base cooking； delignification； kinetics |
| Fund Project:国家自然科学基金(50776035,U0733001)；教育部博士点基金(20070561038)；863计划(2007AA05Z408)；国家科技支撑计划(2007BAD34B01)；973计划(2010CB732201)。 |
| Author Name | Affiliation | | 谢土均1 | 1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 | | 林 鹿2 | 2.厦门大学能源研究院，福建厦门，361005 | | 庞春生1 | 1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 | | 杨秋林1 | 1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 | | 施建斌1 | 1.华南理工大学制浆造纸工程国家重点实验室，广东广州，510640 |
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| Abstract: |
| The delignification process in active oxygen solid base cooking of bagasse and its kinetics were researched.The parameters in the established model were calculated. The research result showed that the cooking temperature from 50℃ to 140℃ in the temperature rising period was the initial lignin removal stage, while the bulk lignin removal stage was from 140℃ to 170℃ in the temperature rising period.The lignin removal was quite fast in the first 80 min when the temperature maintained at the maximum temperature, however delignification was not obvious after 80 min.The reaction order fitted was 1.30 for kappa number, 0.044 for H2O2 concentration, and 0.30 for oxygen pressure, respectively.The activation energy E was 98.57 kJ/mol and factor A was 1.12×109. |
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