Biological hydrogen methanation - A review

被引:138
作者
Lecker, Bernhard [1 ]
Illi, Lukas [1 ]
Lemmer, Andreas [1 ]
Oechsner, Hans [1 ]
机构
[1] Univ Hohenheim, State Inst Agr Engn & Bioenergy, Garbenstr 9, D-70599 Stuttgart, Germany
关键词
Biogas; Molecular hydrogen; Carbon dioxide; Power-to-Gas; Energy storage; POWER-TO-GAS; FIXED-BED REACTOR; METHANOBACTERIUM-THERMOAUTOTROPHICUM; CARBON-DIOXIDE; CH4; PRODUCTION; MASS-TRANSFER; METHANOCOCCUS-THERMOLITHOTROPHICUS; CONTINUOUS-CULTURE; ANAEROBIC REACTOR; BIOGAS PRODUCTION;
D O I
10.1016/j.biortech.2017.08.176
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Surplus energy out of fluctuating energy sources like wind and solar energy is strongly increasing. Biological hydrogen (H-2) methanation (BHM) is a highly promising approach to move the type of energy from electricity to natural gas via electrolysis and the subsequent step of the Sabatier-reaction. This review provides an overview of the numerous studies concerning the topic of BHM. The technical and biological parameters regarding the research results of these studies are compared and analyzed hereafter. A holistic view on how to overcome physical limitations of the fermentation process, such as gas-liquid mass transfer or a rise of the pH value, and on the enhancement of environmental circumstances for the bacterial biomass are delivered within. With regards to ex-situ methanation, the evaluated studies show a distinct connection between methane production and the methane percentage in the off-gas.
引用
收藏
页码:1220 / 1228
页数:9
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