Biomass fermentation for gas production and the development of biogas in China
Yuan, Tianyang (2022)
Yuan, Tianyang
2022
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202205118461
https://urn.fi/URN:NBN:fi:amk-202205118461
Tiivistelmä
At present, the international community is facing a series of energy problems such as the increasing shortage of fossil fuel resources and the deteriorating ecological environment. The development and application of renewable energy sources has become an important part of the world's development.
Methane and hydrogen are two new renewable and clean energy sources that can be a good substitute for fossil fuels, and their development status and prospects have received wide attention. With the development of biorefinery technology, the production of methane and hydrogen from biomass fermentation is becoming increasingly mature. The selection of microbial flora, the choice of reactor type and the efficiency of biomass utilisation are issues that still remain. Therefore, exploring various better biorefinery technologies should be a key research direction.
Methane production from biomass fermentation obtains a much higher energy conversion rate than hydrogen production from biomass fermentation, but the rate of hydrogen production is much faster than that of methane production. Biomass fermentation for methane production is much older and the technology is more mature. More than two hundred species of bacteria have been identified that can be used to produce methane, far more than those found in the production of hydrogen. The main method of fermenting methane and hydrogen is currently anaerobic fermentation, with anaerobic sludge bed reactors and CSTR reactors being the most widely used. The selection of suitable bacterial species and the synergistic fermentation of multiple bacterial groups are the main research directions in anaerobic fermentation for gas production at present.
Methane and hydrogen are two new renewable and clean energy sources that can be a good substitute for fossil fuels, and their development status and prospects have received wide attention. With the development of biorefinery technology, the production of methane and hydrogen from biomass fermentation is becoming increasingly mature. The selection of microbial flora, the choice of reactor type and the efficiency of biomass utilisation are issues that still remain. Therefore, exploring various better biorefinery technologies should be a key research direction.
Methane production from biomass fermentation obtains a much higher energy conversion rate than hydrogen production from biomass fermentation, but the rate of hydrogen production is much faster than that of methane production. Biomass fermentation for methane production is much older and the technology is more mature. More than two hundred species of bacteria have been identified that can be used to produce methane, far more than those found in the production of hydrogen. The main method of fermenting methane and hydrogen is currently anaerobic fermentation, with anaerobic sludge bed reactors and CSTR reactors being the most widely used. The selection of suitable bacterial species and the synergistic fermentation of multiple bacterial groups are the main research directions in anaerobic fermentation for gas production at present.