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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Effect of biopretreatment on thermogravimetric and chemical characteristics of corn stover by different white-rot fungi
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Effect of biopretreatment on thermogravimetric and chemical characteristics of corn stover by different white-rot fungi

机译：生物预处理对不同白腐真菌对玉米秸秆热重和化学特性的影响

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摘要

The thermogravimetric and chemical characterization of corn stover biopretreated by three different species of white-rot fungi have been studied in this research. Results indicated that biopretreatment can optimize the thermal decomposition, decrease the reaction temperature and reduce the gas contamination (SOx), making the biomass pyrolysis more efficient and environmentally friendly. Biopretreatment can decrease the activation energy and reacting temperature of the hemicellulose and cellulose pyrolysis (up to 36 degrees C), shorten the temperature range of the active pyrolysis (up to 14 degrees C), and increase the thermal decomposition rate, greatly promoting the reaction and making the biomass pyrolysis easier to start and carry on. On the other hand, by biopretreatment, the sulphur content can decrease up to 46.15%, which can considerably reduce the inventory of SO emission. Moreover, the mechanism of the biopretreatment was also explored that the deconstruction and depolymerization of the recalcitrant linkages of lignin and cellulose by biopretreatment can make the structure of biomass incompact and easier to be pyrolyzed.
机译：本研究研究了三种不同种类的白腐真菌生物预处理的玉米秸秆的热重和化学性质。结果表明，生物预处理可以优化热分解，降低反应温度并减少气体污染（SOx），从而使生物质热解更加有效和环境友好。生物预处理可以降低半纤维素和纤维素热解的活化能和反应温度（最高36摄氏度），缩短活性热解的温度范围（最高14摄氏度），并提高热分解速率，从而大大促进反应使生物质热解更容易开始和进行。另一方面，通过生物预处理，硫含量最多可降低46.15％，这可大大减少SO排放量。此外，还探讨了生物预处理的机理，即通过生物预处理使木质素和纤维素的顽固键解构和解聚，可以使生物质的结构致密化，更易于热解。

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