高温燃烧红外热导法测定固体生物质燃料元素的试验研究  

EXPERIMENT RESEARCH OF HIGH TEMPERATUE COMBUSION AND INFRARED THERMAL CONDUCTION METHOD FOR DETERMINATION OF FUEL ELEMENTS IN SOLID BIOFUEL

作　　者：孙冠中[1] 李薇[1] 付正辉[1] 黄奎[1] 

机构地区：[1]华北电力大学区域能源系统优化教育部重点实验室,北京102206

出　　处：《太阳能学报》2016年第8期2123-2128,共6页Acta Energiae Solaris Sinica

基　　金：环境保护部公益项目(201309063)

摘　　要：基于生物质资源高效清洁能源化利用的目的，对生物质燃料中C、H、N含量的测定技术进行深入研究。在煤的高温燃烧红外热导法基础上对6种固体生物质燃料进行正交条件试验，通过对实验测定结果的统计分析，总结出最佳试验条件：调整主燃烧管温度为930℃、次燃烧管温度为880℃以及调整第二阶段通氧时间为100s，流量为90mL／min。将改进的方法与测定条件优化的三节炉和半微量开氏法的测定结果进行对比，测定生物质中C、H、N元素只有不到2％的相对误差，测定周期为5—7min，证明了改进的高温燃烧红外热导法测定精确度高、操作简便、高效稳定。Based on exploiting renewable biomass as a high efficient and clean energy, the determination method of C, H and N in solid biofuel was researched. The orthogonal experiments for the determination of hydrogen were carried for 6 kinds of biofuels referred to the infrared thermal conduction method of coal. The best experiment conditions are concluded as follows based on statistics analysis of experiment results, the main combustion tube temperature of 930℃, the secondary combustion tube temperature of 880℃, oxygen supplying time of 100 s at the second stage and the flow of oxygen of 90 mL/min. The relative error of the determination of content is less than 2% compared with the optimized Liebig method and semi-micro Kjeldahl method, besides the operating period is 5-7min. It is proved that the improved high temperature combustion and infrared thermal conductivity method possesses high precision and simple operation, and that it is also efficient and stable.

关 键 词：固体生物质燃料 碳 氢 氮 高温燃烧 红外热导 

分 类 号：TB302.2[一般工业技术—材料科学与工程]