MaREI Centre, Environmental Research Institute (ERI), University College Cork (UCC), Cork, Ireland.
School of Engineering, UCC, Cork, Ireland.
Bioengineered. 2019 Dec;10(1):604-634. doi: 10.1080/21655979.2019.1684607.
The rise in intermittent renewable electricity production presents a global requirement for energy storage. Biological hydrogen methanation (BHM) facilitates wind and solar energy through the storage of otherwise curtailed or constrained electricity in the form of the gaseous energy vector biomethane. Biological methanation in the circular economy involves the reaction of hydrogen - produced during electrolysis - with carbon dioxide in biogas to produce methane (4H + CO = CH + 2H), typically increasing the methane output of the biogas system by 70%. In this paper, several BHM systems were researched and a compilation of such systems was synthesized, facilitating comparison of key parameters such as methane evolution rate (MER) and retention time. Increased retention times were suggested to be related to less efficient systems with long travel paths for gases through reactors. A significant lack of information on gas-liquid transfer co-efficient was identified.
间歇性可再生电力生产的增加对全球储能提出了要求。生物制氢甲烷化（BHM）通过将 otherwise curtailed 或 constrained 电力以气态能源载体生物甲烷的形式储存，为风能和太阳能提供了便利。循环经济中的生物甲烷化涉及在电解过程中产生的氢气与沼气中的二氧化碳反应生成甲烷（4H + CO = CH + 2H），通常可将沼气系统的甲烷产量提高 70%。在本文中，研究了几种 BHM 系统，并对这些系统进行了综合，方便比较甲烷生成速率（MER）和保留时间等关键参数。较长的保留时间表明气体在反应器中通过长路径的系统效率较低。还发现关于气液传质系数的信息严重缺乏。
