玉米秸秆热解挥发分元素含量分析

Elemental content of volatiles from corn stalk pyrolysis

利用EA3000高精度元素分析仪检测了玉米秸秆和其热解液化残炭产物的元素含量,根据质量守恒原理和灰分示踪原理,计算确定了玉米秸秆热解液化挥发分中各元素含量。结论表明,玉米秸秆在反应温度为477℃的流化床和水平携带床中,其热解挥发分可表示为CH2.13O0.86,这和文献记载的气化所得气体产物(CH0.88O1.40,不包含氮)相比,氢相对含量高,氧相对含量低。

Carbon, hydrogen and oxygen content of corn stalk and its fast pyrolysis char was detected using EA3000 high-accuracy elemental analyzer. Based on the result, elemental content of the total volatiles was calculated according to mass conservation and ash tracer method. Results showed that the volatiles of corn pyrolyzed pyrolysised at temperature of 477 ℃ can be expressed as CH2.1300,86. Compared with gas product of corn stalk gasification, the hydrogen content is more and oxygen content is less.