Abstract Palm oil production is a significant agricultural industry in the South East Asia region and the empty fruit bunch by-product OPEFB is a lignocellulosic biomass left after palm oil recovery, which has shown to be recalcitrant to bioconversion. Pretreatment experiments were carried out in this study to mitigate the recalcitrance of this material using oxygen assisted hydrothermal pretreatment (with 3–9% oxygen loading in the form of H2O2) followed by batch anaerobic digestion at both mesophilic and thermophilic conditions. The optimal pretreatment for OPEFB was found to be with 6% oxygen at mesophilic condition resulting in 43% increase in methane yield over the control while at thermophilic conditions, the ultimate methane yield was ultimately lower, but received within a shorter time period. The gate-to-gate process was analyzed for global warming potential impacts and it was concluded that for the production of methane at the optimal condition resulted in the lowest greenhouse gas emissions (30% less than the control).

中文翻译：

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通过湿式氧化预处理提高油棕空果串的甲烷产量：中温和高温厌氧消化条件以及相关的全球变暖潜势效应

摘要 棕榈油生产是东南亚地区的重要农业产业，空果串副产品 OPEFB 是棕榈油回收后留下的木质纤维素生物质，已证明难以进行生物转化。在本研究中进行了预处理实验，以使用氧辅助水热预处理（以 H2O2 形式加载 3-9% 的氧），然后在中温和高温条件下进行分批厌氧消化，以减轻这种材料的顽固性。发现 OPEFB 的最佳预处理是在中温条件下用 6% 的氧气使甲烷产量比对照增加 43%，而在高温条件下，最终的甲烷产量最终较低，但在更短的时间内收到。