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Enhancement of dark fermentative H2 production by gas separation membranes: A review.
Bioresource Technology ( IF 11.4 ) Pub Date : 2020-01-21 , DOI: 10.1016/j.biortech.2020.122828 Nándor Nemestóthy 1 , Katalin Bélafi-Bakó 1 , Péter Bakonyi 1
Bioresource Technology ( IF 11.4 ) Pub Date : 2020-01-21 , DOI: 10.1016/j.biortech.2020.122828 Nándor Nemestóthy 1 , Katalin Bélafi-Bakó 1 , Péter Bakonyi 1
Affiliation
Biohydrogen production via dark fermentation is currently the most developed method considering its practical readiness for scale-up. However, technological issues to be resolved are still identifiable and should be of concern, particularly in terms of internal mass transfer. If sufficient liquid-to-gas H2 mass transfer rates are not ensured, serious problems associated with the recovery of biohydrogen and consequent inhibition of the process can occur. Therefore, the continuous and effective removal of H2 gas is required, which can be performed using gas separation membranes. In this review, we aim to analyze the literature experiences and knowledge regarding mass transfer enhancement approaches and show how membranes may contribute to this task by simultaneously processing the internal (headspace) gas, consisting mainly of H2 and CO2. Promising strategies related to biogas recirculation and integrated schemes using membranes will be presented and discussed to detect potential future research directions for improving biohydrogen technology.
中文翻译:
气体分离膜增强深色发酵氢气的产生:综述。
考虑到其实际可行的扩大规模,通过暗发酵生产生物氢是目前最先进的方法。但是,要解决的技术问题仍然可以确定,应该引起关注,特别是在内部传质方面。如果不能确保足够的液-气H2传质速率,则可能会出现与生物氢回收相关的严重问题,并因此导致该过程受到抑制。因此,需要连续和有效地除去氢气,这可以使用气体分离膜来进行。在这篇综述中,我们旨在分析有关传质增强方法的文献经验和知识,并展示膜如何通过同时处理主要由H2和CO2组成的内部(顶部空间)气体来促进这一任务。
更新日期:2020-01-21
中文翻译:
气体分离膜增强深色发酵氢气的产生:综述。
考虑到其实际可行的扩大规模,通过暗发酵生产生物氢是目前最先进的方法。但是,要解决的技术问题仍然可以确定,应该引起关注,特别是在内部传质方面。如果不能确保足够的液-气H2传质速率,则可能会出现与生物氢回收相关的严重问题,并因此导致该过程受到抑制。因此,需要连续和有效地除去氢气,这可以使用气体分离膜来进行。在这篇综述中,我们旨在分析有关传质增强方法的文献经验和知识,并展示膜如何通过同时处理主要由H2和CO2组成的内部(顶部空间)气体来促进这一任务。