Acta Scientiarum Naturalium Universitatis Pekinensis

Previous Articles    

Orthogonal Design of Xilinhaote Lignite Oxidation with Hydrogen Peroxide in Aqueous Alkali with Microwave-Assisted

LANG Yuqi1,2, FENG Bo2, QIN Chunmei2, WANG Jian1,2, QI Lu1   

  1. 1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871; 2. CITIC Guo An Mengguli Power Source Technology Company, Beijing 102200;
  • Received:2011-05-12 Online:2012-01-20 Published:2012-01-20

微波辅助碱氧化锡林浩特褐煤正交实验研究

郎宇琪1,2,冯波2,秦春梅2,王健1,2,其鲁1   

  1. 1. 北京大学化学与分子工程学院, 北京 100871; 2. 中信国安盟固利电源技术有限公司, 北京 102200;

Abstract: Microwave-assisted Xilinhaote lignite oxidation with hydrogen peroxide in aqueous alkali were studied by using orthogonal test. Taking the yield of succinic acid as index, the reaction time, reaction temperature, the concentration of H2O2 and the alkali/coal mass ratio were investigated. The highest yield of succinic acid under the optimum reaction conditions was 20.4% (daf). The optimum conditions include reaction temperature 180°C, reaction time 1 hour, alkali/coal mass ratio 1.5:1 and the concentration of H2O2 0.026 mol/L.

Key words: lignite, microwave-assisted, alkali-oxidation, orthogonal test

摘要: 微波辅助条件下, 采用正交试验方法对内蒙锡林浩特褐煤进行了碱氧化研究。 以有机酸中丁二酸产率为指标, 考察了反应温度、时间、氧化剂用量及碱浓度对丁二酸产率的影响, 得到锡林浩特褐煤碱氧化反应的最佳条件为反应温度180°C, 碱煤质量比1.5:1, 恒温时间1 h, H2O2浓度0.026 mol/L。最佳条件下丁二酸产率可达20.4%(对daf煤)。

关键词: 褐煤, 微波辅助, 碱氧化, 正交试验

CLC Number: