Anaerobic Fermentation for Hydrogen Production from 11 Organic Acids
The experiments described in this paper investigate anaerobic fermentation for hydrogen production from eleven organic acids using anaerobic activated sludge as inoculums.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 an accumulation of butyric,propionatic and acetic acid that cannot be metabolized by hydrogen-producing bacteria.The study also investigates whether or not organic acids can produce hydrogen gas through anaerobic fermentation.The findings indicate the results depend on the free energy change ( △G(°)) of a hydrogen-producing reaction.If the △G(°) is more than O,organic acids cannot produce hydrogen.
Hydrogen Production Hydrogen Potential Organic Acid Anaerobic Fermentation
Li jianchang Sun kewei Zhang wudi
National Engineering Center of Solid Waste Resources Recovery, Kunming University of Science and Tec National Engineering Center of Solid Waste Resources Recovery, Kun Provincial Key Lab of Rural Energy Engineering,Yunnan Normal University, Kunming 650092, P. R. China
国内会议
武汉
英文
11-17
2009-11-01（万方平台首次上网日期，不代表论文的发表时间）