摘要
合成气来自于煤、石油、生物质和有机废物的气化,其主要成份为CO、H2和CO2。研究发现某些厌氧菌能利用合成气生成乙醇、乙酸、丁醇和丁酸等燃料和化学品。由于生物转化所具有的优势,合成气厌氧发酵被认为是一项极具潜力和竞争力的技术,在生物质及有机废物的利用方面将发挥重要作用。对厌氧发酵合成气生产有机酸和醇的研究进展,包括利用合成气产有机酸和醇的微生物,合成气发酵的代谢途径和关键酶(一氧化碳脱氢酶/乙酰辅酶A合成酶)及用于合成气发酵的反应器等进行了综述,并对该项技术的发展提出了一些建议。
Gasification of coal,oil,biomass or organic wastes generates synthesis gas,which consists primarily of CO,H2 and CO2.Synthesis gas may be used as substrates by some anaerobic bacteria to produce liquid fuels and chemicals such as ethanol,acetic acid,butanol and butyric acid.Anaerobic fermentation of synthesis gas is considered a promising and competing technology due to its advantages over catalytic techniques,and it＇s expected that synthesis gas fermentation will play a role in the conversion of biomass and organic wastes.Research progress in production of organic acids and alcohols via synthesis gas fermentation was reviewed,focusing on microorganisms,the metabolic pathway,key enzymes （especially carbon monoxide dehydrogenase /acetyl-CoA synthase） and bioreactors.Suggestions were also given to indicate areas where advances can be made.
出处
《中国生物工程杂志》
CAS
CSCD
北大核心
2010年第3期112-118,共7页
China Biotechnology
基金
中国科学院知识创新工程重要方向项目(KGCX2-YW-335)资助项目
关键词
厌氧发酵
合成气
乙醇
乙酸
Anaerobic fermentation Synthesis gas Ethanol Acetic acid
