Bioenergy production is the most sought-after topics at the crunch of energy demand, climate change and waste generation. In view of this, lignocellulosic biomass (LCB) rich in complex organic content has the potential to produce bioenergy in several forms following the pretreatment. Hydrothermal pretreatment that employs high temperatures and pressures is gaining momentum for organics recovery from LCB which can attain value-addition. Diverse bioprocesses such as dark fermentation, anaerobic digestion etc. can be utilized following the pretreatment of LCB which can result in biohydrogen and biomethane production. Besides, integration approaches for LCB utilization that enhance process efficiency and additional products such as biohythane production as well as application of solid residue obtained after LCB pretreatment were discussed. Importance of hydrothermal pretreatment as one of the suitable strategies for LCB utilization is emphasized suggesting its future potential in large scale energy recovery.

在能源需求紧缩、气候变化和废物产生的紧要关头，生物能源生产是最受追捧的话题。鉴于此，富含复杂有机物的木质纤维素生物质（LCB）在预处理后有可能产生多种形式的生物能源。采用高温和高压的水热预处理正在获得从 LCB 中回收有机物的势头，这可以获得附加值。在对 LCB 进行预处理后，可以使用多种生物工艺，例如暗发酵、厌氧消化等，从而产生生物氢和生物甲烷。此外，还讨论了提高工艺效率的 LCB 利用集成方法和生物乙烷生产等附加产品以及 LCB 预处理后获得的固体残渣的应用。