The University of Tennessee, Knoxville, TN 37996, United States; Bredesen Center for Interdisciplinary Research and Education, The University of Tennessee, Knoxville 37996, United States.
The University of Tennessee, Knoxville, TN 37996, United States.
Bioresour Technol. 2015 Nov;195:231-41. doi: 10.1016/j.biortech.2015.06.085. Epub 2015 Jun 30.
A new approach to hydrogen production using an integrated pyrolysis-microbial electrolysis process is described. The aqueous stream generated during pyrolysis of switchgrass was used as a substrate for hydrogen production in a microbial electrolysis cell, achieving a maximum hydrogen production rate of 4.3 L H2/L anode-day at a loading of 10 g COD/L-anode-day. Hydrogen yields ranged from 50±3.2% to 76±0.5% while anode Coulombic efficiency ranged from 54±6.5% to 96±0.21%, respectively. Significant conversion of furfural, organic acids and phenolic molecules was observed under both batch and continuous conditions. The electrical and overall energy efficiency ranged from 149-175% and 48-63%, respectively. The results demonstrate the potential of the pyrolysis-microbial electrolysis process as a sustainable and efficient route for production of renewable hydrogen with significant implications for hydrocarbon production from biomass.
采用集成的热解-微生物电解工艺生产氢气的新方法。在柳枝稷热解过程中产生的水相被用作微生物电解池产氢的基质，在 10 g COD/L-阳极天的负荷下，最大产氢速率达到 4.3 L H2/L 阳极天。氢气产率分别为 50±3.2%到 76±0.5%，而阳极库仑效率分别为 54±6.5%到 96±0.21%。在批处理和连续条件下，均观察到糠醛、有机酸和酚类分子的显著转化。电和总能量效率分别为 149-175%和 48-63%。结果表明，热解-微生物电解工艺具有生产可再生氢气的可持续和高效途径的潜力，对从生物质生产烃类具有重要意义。
