期刊
CHEMSUSCHEM
卷 14, 期 1, 页码 344-355出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202002079
关键词
biosynthesis; CO(2)reduction; electrochemistry; formate; multiphysics modeling
资金
- Center for the Utilization of Biological Engineering in Space (CUBES)
- NASA Space Technology Research Institute [NNX17AJ31G]
- NSF Graduate Research Fellowship [DGE 1752814]
Mediated microbial electrosynthesis (MES) is a promising strategy for capturing and converting CO(2) into carbon-based products, but it is limited by a competitive trade-off between O(2) gas/liquid mass transfer and CO(2) transport to the cathode.
Mediated microbial electrosynthesis (MES) represents a promising strategy for the capture and conversion of CO(2)into carbon-based products. We describe the development and application of a comprehensive multiphysics model to analyze a formate-mediated MES reactor. The model shows that this system can achieve a biomass productivity of similar to 1.7 g L-1 h(-1)but is limited by a competitive trade-off between O(2)gas/liquid mass transfer and CO(2)transport to the cathode. Synthetic metabolic strategies are evaluated for formatotrophic growth, which can enable an energy efficiency of similar to 21 %, a 30 % improvement over the Calvin cycle. However, carbon utilization efficiency is only similar to 10 % in the best cases due to a futile CO(2)cycle, so gas recycling will be necessary for greater efficiency. Finally, separating electrochemical and microbial processes into separate reactors enables a higher biomass productivity of similar to 2.4 g L-1 h(-1). The mediated MES model and analysis presented here can guide process design for conversion of CO(2)into renewable chemical feedstocks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据