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Ex-situ biological CO2 methanation using trickle bed reactor: review and recent advances
Reviews in Environmental Science and Bio/Technology ( IF 14.4 ) Pub Date : 2021-08-03 , DOI: 10.1007/s11157-021-09589-7
Michal Sposob 1 , Keno Fischer 1 , Radziah Wahid 2
Affiliation  

Power-to-methane technology is a promising solution to facilitate the use of excess variable renewable energy for biomethane production. In this approach, hydrogen produced via electrolysis is used to upgrade raw biogas, which can be subsequently used as fuel or stored in the gas grid. Ex-situ biomethanation is an emerging technology that could potentially replace conventional energy-intensive biogas upgrading methods and allow CO2 utilization for biomethane production. This work provides a comprehensive overview on the current status of ex-situ biomethanation with particular attention to trickle bed reactor. The review includes description of ex-situ biomethanation and summarizes previous works on this topic. The key elements related to operational conditions, efficiency, and microbiology of ex-situ biomethanation using trickle bed reactor are described here. Additionally, the review highlights the technical and economic issues that have to be addressed for future development and large-scale implementation of ex-situ biomethanation.



中文翻译:

使用滴流床反应器的异地生物 CO2 甲烷化:综述和最新进展

电能转化为甲烷技术是一种很有前景的解决方案,可促进将过剩的可变可再生能源用于生物甲烷生产。在这种方法中,通过电解产生的氢气用于升级未加工的沼气,随后可将其用作燃料或储存在燃气管网中。异地生物甲烷化是一种新兴技术,有可能取代传统的能源密集型沼气升级方法,并允许利用CO 2生产生物甲烷。这项工作全面概述了异地生物甲烷化的现状,特别关注滴流床反应器。审查包括对迁地的描述biomethanation 并总结了以前关于该主题的工作。此处描述了与使用滴流床反应器进行异地生物甲烷化的操作条件、效率和微生物学相关的关键要素。此外,审查强调了非原位生物甲烷化的未来发展和大规模实施必须解决的技术和经济问题。

更新日期:2021-08-03
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