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›› 2003, Vol. 3 ›› Issue (2): 0-0.

• 2 •    

喷动-载流床中粒径对内蒙霍林河褐煤快速热解产物的影响

崔丽杰，姚建中，林伟刚   

  1. 1. 中国科学院过程工程所多相反应开放实验室, 北京 100080; 2. 鞍山科技大学化学工程学院, 辽宁 鞍山 114002
  • 出版日期:2003-04-20 发布日期:2003-04-20

Effect of Particle Size on Products from Flash Pyrolysis of Huolinhe Lignite in a Spouted-entrained Bed

CUI Li-jie1,2, YAO Jian-zhong1, LIN Wei-gang1   

  1. 1. Inst. Chem. Metall., Chinese Academy of Sciences, Beijing 100080, China; 2. University of Science & Technology Beijing, Beijing 100083, China
  • Online:2003-04-20 Published:2003-04-20

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摘要： 在喷动–载流床内对霍林河褐煤进行了快速热解，考察了0.125~0.28 mm范围内煤粉颗粒粒径对煤热解总失重、热解产物产率以及气体和液体产物具体组成的影响. 气体和液体产物的组成分别利用气相色谱和色质联用仪分析. 实验表明, 随颗粒粒径增大，煤中挥发份脱出率略有降低，半焦产率略有升高，气体总产率增大，CH4，无机气体，C2H6，C3H8等呈现上升趋势. 而随颗粒粒径增大，液体产率降低，其中沥青质的降低较为显著. 正己烷可溶物产率随颗粒粒径增加有少许降低. 热解水产率随着颗粒粒径的增大而增加. 颗粒粒径对正己烷可溶物中的各类组份的含量也有一定的影响.

关键词: 喷动–载流床, 褐煤, 快速热解, 粒径

Abstract: k–e turbulence model and Ergun equation is applied to simulate the gas-flow behaviour in a Z-path-moving bed. Especially, the effect of the angle of the inclined perforated plates was investigated. The simulation result was agreed well with the experimental data, which demonstrated the reliability of the model. The simulation disclosed that, in a Z-path moving bed, with the enlargement of angle of the inclined perforated plates, the pressure drop reduced and the fact that gas flow towards the high end of the above perforated plate was enhanced.

Key words: spouted-entrained bed, lignite, flash pyrolysis, particle size

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