Experimental investigation of integrated systems for biohydrogen and biomethane production: Effects of thermal parameters

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-03-06 DOI:10.1016/j.tsep.2025.103475

Ahmet Faruk Kilicaslan, Ibrahim Dincer

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引用次数: 0

Abstract

This study introduces two novel systems for simultaneous biohydrogen and biomethane production. System 1 is made up of a single chamber membraneless microbial electrolysis cell. System 2 combines a membraneless microbial electrolysis cell with an anaerobic digestion system to simultaneously produce biomethane and biohydrogen. Unlike conventional systems, these configurations eliminate membrane related challenges such as fouling, high costs, and internal resistance losses, thereby improving efficiency and scalability. Both systems operate at 1.0 V using some low-cost aluminum electrodes and utilize cow manure and poplar leaves, rarely explored biomass sources. System 1 investigates pH and temperature effects on biohydrogen production, while System 2 examines batch and continuous flow modes. The highest biohydrogen production occurred at pH 6 and 40°C, reaching 722 mg/L in 9 min, with a maximum hydrogen efficiency of 82.4%. Batch operation yielded 830.9 mL biohydrogen and 720 mL biomethane, increasing to 843.3 mL and 760 mL, respectively, in continuous mode, with 53% and 5% production enhancements. This study provides a pioneering framework for integrating membraneless microbial electrolysis cells and anaerobic digestion systems, demonstrating a cost-effective, scalable, and sustainable approach to biofuel production.

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.