Yellezuome Dominic, Zhu Xianpu, Liu Xin, Liu Xuwei, Liu Ronghou, Wang Zengzhen, Li Yingkai, Sun Chen, Hemida Abd-Alla Mohamed, Rasmey Abdel-Hamied M
Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China; Shanghai Yangtze River Delta Eco-environmental Change and Management Observation and Research Station, Ministry of Science and Technology, 800 Dongchuan Road, Shanghai 200240, PR China.
Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China; Shanghai Yangtze River Delta Eco-environmental Change and Management Observation and Research Station, Ministry of Science and Technology, 800 Dongchuan Road, Shanghai 200240, PR China.
Bioresour Technol. 2023 Feb;369:128475. doi: 10.1016/j.biortech.2022.128475. Epub 2022 Dec 9.
High impurity concentration of biogas limits its wide commercial utilization. Therefore, the integration of two-stage anaerobic digestion process with in situ biogas upgrading technologies is reviewed, with emphasis on their principles, main influencing factors, research success, and technical challenges. The crucial factors that influence these technologies are pH, alkalinity, and hydrogenotrophic methanogenesis. Hence, pH fluctuation and low gas-liquid mass transfer of H are some major technical challenges limiting the full-scale application of in situ upgrading techniques. Two-stage anaerobic digestion integration with various in situ upgrading techniques to form a hybrid system is proposed to overcome the constraints and systematically guide future research design and advance the development and commercialization of these techniques. This review intends to provide the current state of in situ biogas upgrading technologies and identify knowledge gaps that warrant further investigation to advance their development and practical implementation.
沼气的高杂质浓度限制了其广泛的商业应用。因此，本文综述了两段式厌氧消化工艺与原位沼气提纯技术的整合，重点介绍了它们的原理、主要影响因素、研究成果和技术挑战。影响这些技术的关键因素是pH值、碱度和氢营养型产甲烷作用。因此，pH值波动和氢气的气液传质效率低是限制原位提纯技术大规模应用的一些主要技术挑战。提出将两段式厌氧消化与各种原位提纯技术相结合，形成一个混合系统，以克服这些限制，并系统地指导未来的研究设计，推动这些技术的发展和商业化。本综述旨在介绍原位沼气提纯技术的现状，并找出有待进一步研究以推动其发展和实际应用的知识空白。
