期刊
TRENDS IN BIOTECHNOLOGY
卷 39, 期 4, 页码 336-347出版社
CELL PRESS
DOI: 10.1016/j.tibtech.2020.08.006
关键词
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资金
- National Natural Science Foundation of China [51808260]
- International Postdoctoral Exchange Fellowship Program of China [20190053]
- China Postdoctoral Science Foundation [2018M632232]
- Carlsberg Foundation [CF18-0084]
Biogas upgrading to biomethane has great potential, but in situ bioconversion technologies still face challenges. While overcoming these challenges, the technology also provides new opportunities for the development of renewable energy.
Biogas produced by anaerobic digestion is an important renewable energy carrier. Nevertheless, the high CO2 content in biogas limits its utilization to mainly heat and electricity generation. Upgrading biogas into biomethane broadens its potential as a vehicle fuel or substitute for natural gas. CO2-to-CH4 bioconversion represents one cutting-edge solution for biogas upgrading. In situ bioconversion can capture endogenous CO2 directly from the biogas reactor, is easy to operate, and provides an infrastructure for renewable electricity storage. Despite these advantages, several challenges need to be addressed to move in situ upgrading technologies closer to applications at scale. This opinion article reviews the state of the art of this technology and identifies some obstacles and opportunities of biological in-situ upgrading technologies for future development.
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