Abstract This study aimed at determination of the char, tar and gas production yield during pyrolysis of the spent mushroom substrate left after cultivation, as well as its individual components, namely the casing layer and the mushroom substrate. The pyrolysis process was carried out in a thermobalance combined with a mass spectrometer. Based on the analysis of mass losses, it was found that the largest amount of flammable gases and tar were released during pyrolysis of the spent mushroom substrate. The yield of char, tar and gas during pyrolysis at 600 °C were respectively equal to 57.1, 14.4 and 14.5 wt.%. The loss of mass at temperature above 600 °C was associated with thermal decomposition of calcium carbonate, calcium sulfate, and oxidation of the char. The deconvolution of DTG curves and volatile products such as H2, CH4, CO, CO2, H2O and tar allowed to determine the decomposition of the compounds contained in the spent mushroom substrate during the pyrolysis process. The kinetic parameters were calculated from the isoconversional model for thermal degradation of biomass. The results could aid in managing organic wastes including the energy production.

中文翻译：

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用过的蘑菇基质及其组分的热重分析与质谱联用

摘要 本研究旨在测定培养后留下的废弃蘑菇基质及其各个组分（即外壳层和蘑菇基质）在热解过程中的炭、焦油和气体产率。热解过程在与质谱仪结合的热天平中进行。根据对质量损失的分析，发现在用过的蘑菇基质热解过程中释放的可燃气体和焦油量最大。在 600 °C 下热解过程中炭、焦油和气体的产率分别等于 57.1、14.4 和 14.5 wt.%。温度高于 600 °C 时的质量损失与碳酸钙、硫酸钙的热分解和炭的氧化有关。DTG 曲线和挥发性产物如 H2、CH4、CO、CO2、在热解过程中，H2O 和焦油可以用来确定用过的蘑菇基质中所含化合物的分解情况。从生物质热降解的等转化模型计算动力学参数。结果可能有助于管理有机废物，包括能源生产。