Mechanical pretreatment of lignocelluloses for enhanced biogas production: Methane yield prediction from biomass structural components
Mechanical pretreatment of lignocelluloses for enhanced biogas production: Methane yield prediction from biomass structural components
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DOI：
10.1016/j.biortech.2019.02.006
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发表时间：
2019-05-01
影响因子：
11.4
通讯作者：
Dahunsi, S. O.
中科院分区：
文献类型：
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作者：
Dahunsi, S. O.
在这项研究中，机械预处理施加到六个不同的木质纤维素在两个不同的处理阶段，并预测其甲烷产量从生物质化学组成。使用标准方法对预处理和未处理的生物质进行物理化学、近似和微生物分析。机械预处理导致所有使用的生物质中的结构材料的分解，其特征在于厌氧消化过程中的滞后时间的减少和随后的甲烷产率的增加高达22%。不同的生物质负荷率对甲烷产率的总体增加没有影响。为了将生物质的化学组成与其甲烷潜力相关联，使用了单一和多元线性回归模型，并且获得了相当高的相关性（R-2 = 0.63）。研究还表明，预处理在经济上是可行的。因此，鼓励其进一步应用于其他生物质。
In this study, mechanical pretreatment was applied to six different lignocelluloses in two different treatment phases and the prediction of their methane yield was done from biomass chemical composition. Physicochemical, proximate and microbial analyses were carried out on both pretreated and untreated biomass using standard methods. Mechanical pretreatments caused the breakdown of structural materials in all the used biomass which was characterized by reduction of the lagging time during anaerobic digestion and the subsequent increase in methane yield up to 22%. The different loading rate of biomass had no effect on the overall methane yield increase. Both single and multiple linear regressions models were used in order to correlate the chemical composition of the biomass with their methane potentials and a fairly high correlation (R-2 = 0.63) was obtained. The study also showed that the pretreatments are economically feasible. Therefore, its further application to other biomass is encouraged.