摘要
采用现代化学分析领域中重要的分析方法 -裂解气相色谱法 ,对生物质的快速裂解进行了探索性研究。以杨木木屑为研究对象 ,在裂解温度 40 0～ 80 0℃ ,升温速率 1 0 0℃ s、2 50℃ s、50 0℃ s,挥发性产物停留时间 0 6～4 0s的裂解条件下 ,考察了杨木木屑快速裂解气、液、固三种产物及气相组分的分布规律。实验结果表明 ,气、液、固三种产物所占比例及其组分含量取决于裂解条件 -裂解温度、挥发份停留时间和升温速率 ,杨木在升温速率50 0℃ s、挥发性产物停留时间 0 6s、裂解温度 50 0℃下快速裂解 ,可获得最大的产液率 80 % (含水 )。物料平衡的结果证明了裂解色谱研究方法的有效性和可行性。
The behavior of biomass flash pyrolysis was studied by pyrolysis gas chromatography.This paper mainly investigated the pyrolysis product distribution of poplar-sawdust at atmospheric pressure, a range of temperatures between 400℃ and 800℃, the heating rates of 500℃/s, 250℃/s and 100℃/s, and the several volatile residence times (0.6s～4s).The experimental results revealed that the pyrolysis product distribution notably depended on the pyrolysis conditions: pyrolysis temperature, volatile residence time and the heating rate.Under the operating conditions of pyrolysis temperature: 500℃, volatile residence time: 0.6s and the heating rate: 500℃/s, the maximum liquid yield 80% was obtain.The results of material balance showed that the study means and analytical method were feasible.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2000年第5期415-419,共5页
Journal of Fuel Chemistry and Technology
关键词
快速裂解
裂解气相色谱
生物质燃料
biomass flash pyrolysis, pyrolysis gas chromatography, product distribution
