This work presents a comprehensive study on the effects of pyrolysis parameters (pyrolysis temperature, residence time, and heating rate) on the distribution of pyrolysis products of Miscanthus. Py-GC/MS (Pyrolysis-gas chromatography/mass) was conducted to identify building blocks of value-added chemical from Miscanthus. The results showed that the main pyrolysis products of Miscanthus were ketone, aldehyde, phenol, heterocycles, and aromatic compounds. The representative compounds of ketone and aldehyde compounds produced at different pyrolysis temperatures changed obviously, while the representative compounds of phenolic, heterocyclic, and aromatic compounds had no obvious change. Large-scale pyrolysis of Miscanthus had begun at 400°C, and the relative content of pyrolysis products from Miscanthus reached the maximum of 98.34% at 700°C. The relative peak area ratio of phenol and aromatic compounds reached the maximum and minimum at the residence time of 5 and 10 s, while the relative peak area ratio of ketone compounds showed the opposite trend. The relative peak area ratio of aldehyde compounds was higher under shorter or longer residence time. For heterocyclic compounds, the relative peak area ratio reached the maximum of 27.0% at residence time of 10 s. The faster or slower heating rate was beneficial to the production of aldehyde and phenol compounds. The relative peak area ratio of ketone compounds reached the maximum at 10,000°C/s, 70°C/s, and 10°C/s, and the relative peak area ratio tendency of heterocyclic compounds was similar to ketone. For aromatic compounds, the overall fluctuations were large, and the relative peak area ratio was the highest at the heating rate of 100°C/s.

这项工作对热解参数（热解温度，停留时间和加热速率）对芒草热解产物分布的影响进行了全面的研究。进行了Py-GC / MS（热解-气相色谱/质谱），以鉴定来自芒草的增值化学品的基本组成部分。结果表明，芒草的主要热解产物为酮，醛，苯酚，杂环和芳香族化合物。在不同的热解温度下生成的酮和醛化合物的代表化合物变化明显，而酚，杂环和芳族化合物的代表化合物没有明显变化。芒草的大规模热解始于400°C，来自芒草的热解产物的相对含量在700°C时达到最高98.34％。苯酚和芳香族化合物的相对峰面积比在停留时间5和10 s达到最大值和最小值，而酮化合物的相对峰面积比呈现相反的趋势。在较短或更长的停留时间下，醛化合物的相对峰面积比较高。对于杂环化合物，相对峰面积比在10 s的停留时间达到最大值27.0％。更快或更慢的加热速率有利于醛和酚化合物的生产。酮化合物的相对峰面积比在10,000℃/ s，70℃/ s和10℃/ s时达到最大值，杂环化合物的相对峰面积比趋势与酮相似。对于芳族化合物，总体波动较大，