摘要
生物质合成气发酵是一种独特的、经济可行的乙醇生产新方法,它包括气化和发酵两个方面,对环境改善和能源供给有积极的意义。在合成气发酵产乙醇的微生物中,Clostridium ljungdahlii和Clostridium car-boxidivorans P7最有应用价值。它们利用合成气的途径是wood-ljungdahl途径。文章概述了合成气发酵产乙醇的菌种和培养条件,建立了生长动力学模型,提出了合成气发酵产乙醇工业化过程中存在的问题和应用前景。
Global warming and shortage of fossil fuel are threatening the sustainable development of the world. Renewable energy resources can serve as a substitute or complement for fossil fuel. Fermentation of biomass-generated syngas to ethanol is a new unique,economical as well as efficient method, which can be divided into two stages as gasification and fermentation. Wood-ljung- dahl pathway is the primary anaerobic metabolic pathway allowing microorganisms to utilize CO, CO2 as sole carbon and energy sources, while Clostridium ljungdahlii and Clostridium carboxidivorans P7 are most potential industrial candidate strains which use this pathway for the fermentation of conversion syngas into ethanol .In this paper,the cultivation conditions, the mechanism of syngas ethanol fermentation and kinetic model are reviewed. The problem and prospect of the potential application in industry are also mentioned.
出处
《可再生能源》
CAS
2007年第3期27-30,共4页
Renewable Energy Resources
基金
国家"863"计划资助项目(2002AA514010)
