Anaerobic Fermentation for Hydrogen Production from 11 Organic Acids10

摘要：

The experiments described in this paper investigate anaerobic fermentation for hydrogen production from eleven organic acids using anaerobic activated sludge as inoculum. It was shown that hydrogen gas was produced when using citric, malic, lactic, formic, pyruvic, oxalic, and fumaric acid, and the hydrogen potential at 25℃ for those acids is 171.3, 117.4, 93.5, 79.6, 75.6, 24.6 and 23.7ml/g, respectively. However, no hydrogen was generated when using succinic, butyric, propionatic and acetic acid. According to the hydrogen potential, energy conversion can be calculated and is lower due to accumulation of butyric, propionatic and acetic acid that cant be metabolized by hydrogen-producing bacteria. It also indicates that whether organic acids investigated can produce hydrogen gas or not through anaerobic fermentation mostly depends on its free energy change (△G°)ofa hydrogen-producing reaction, and ifthe△G° is much more than 0, they cant produce hydrogen.

关键词： Hydrogen Production Hydrogen Potential Organic Acid Anaerobic Fermentation

作者: Li Jianchang Liu Li Zhang Wudi

作者单位: Provincial Key Lab of Rural Energy Engineering,Yunnan Normal University,Kunming 650092,PR. China Chemical Engineering School of Yunnan Province,Kunming 650050,PR. China

会议类型: 国际会议

会议名称: 2008年生物质能源技术国际会议

会议地点: 广州

会议语种:英文

页码: 848-854

在线出版日期: 2008-12-03（万方平台首次上网日期，不代表论文的发表时间）