Fuel reforming processes for hydrogen production

Mokheimer, Esmail Mohamed Ali; Shakeel, Mohammad Raghib; Harale, Aadesh; Paglieri, Stephen; Mansour, Rached Ben

doi:10.1016/j.fuel.2023.130427

Cited by 7 publications

(1 citation statement)

References 352 publications

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“…However, H 2 is almost nonexistent in Earth's atmosphere [2,3]. Currently, the primary method of producing H 2 is steam reformation, which uses methane gas as its main reagent; this method relies on fossil fuels and thus does not solve the fundamental problem of fossil fuel use [4,5]. In a bioprocess using photosynthetic bacteria, H 2 can be produced by an enzymatic reaction that uses light as an energy source and an organic compound as an electron donor [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Biohydrogen Production under Aerial Conditions by a Nitrogen-Fixing Bacterium Isolated from a Steel Signboard

Aburai,

Tanaka,

Kohira

et al. 2024

Fermentation

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Hydrogen gas is attractive as a clean fuel source if it can be produced efficiently without relying on fossil fuels. Biohydrogen production using photosynthetic bacteria may enable environmentally friendly hydrogen production but is currently limited by factors such as low oxygen tolerance. In this study, we isolate a new strain of bacteria that can produce hydrogen under aerial-phase conditions compared with those under liquid-phase conditions in a nitrogen gas or an argon gas atmosphere. Bacterial strains were cultured from scrapings taken from a steel signboard. Investigation of the hydrogen production of the strains under aerial- and liquid-phase conditions and subsequent DNA sequencing led to identification of the bacterium Cereibacter sp. KGU-NF001. Aerial-phase conditions were achieved by filter membranes with the bacterial strains and placing the membranes on medium-soaked cotton wool. The gas atmosphere affected the behavior of the isolated bacterial strains under both aerial- and liquid-phase conditions. Cereibacter sp. KGU-NF001 showed promising oxygen tolerance and was able to maintain hydrogen production of 1.33 mL/mg/d even when the atmosphere contained 12% oxygen. Our findings illustrate that biohydrogen production may be achieved by photosynthetic bacteria under oxygen-containing aerial-phase conditions, indicating a possible pathway to help lower our reliance on fossil fuels.

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