In regions highly dependent on fossil fuels imports, biomethane represents a promising biofuel for the transition to a bio-based circular economy. While biomethane is typically produced via anaerobic digestion and upgrading, biomethanation of the synthesis gas (syngas) derived from the gasification of recalcitrant solid waste has emerged as a promising alternative. This work presents a comprehensive and in-depth analysis of the state-of-the-art and most recent advances in the field, compiling the potential of this technology along with the bottlenecks requiring further research. The key design and operational parameters governing syngas production and biomethanation (e.g. organic feedstock, gasifier design, microbiology, bioreactor configuration, etc.) are critically analysed.

在高度依赖化石燃料进口的地区，生物甲烷代表了一种有前途的生物燃料，可用于向基于生物的循环经济过渡。虽然生物甲烷通常通过厌氧消化和提质生产，但从顽固的固体废物气化中提取的合成气（合成气）的生物甲烷化已成为一种有前途的替代方案。这项工作对该领域的最新技术和最新进展进行了全面而深入的分析，汇总了该技术的潜力以及需要进一步研究的瓶颈。对控制合成气生产和生物甲烷化的关键设计和操作参数（例如有机原料、气化器设计、微生物学、生物反应器配置等）进行了严格分析。