Microalgae-derived hydrogen production towards low carbon emissions via large-scale outdoor systems

Sung, Young Joon; Yu, Byung Sun; Yang, Ha Eun; Kim, Dong Hoon; Lee, Ju‐Yeon; Sim, Sang Jun

doi:10.1016/j.biortech.2022.128134

Cited by 14 publications

(4 citation statements)

References 103 publications

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“…24 Finally, bio-hydrogen can be produced from microalgae since they can produce hydrogen by fixing photosynthetic CO 2 in the presence of sunlight and subsequently fermenting and degrading stored organic molecules. 25 In addition to biofuel production, the algal biomass also contains molecules that can be converted to a variety of value-added products such as food, cosmetics, pharmaceutical additives, fertilizers and other chemicals. 24…”

Section: Current State Of Microalgal Biofuel Researchmentioning

confidence: 99%

Machine learning for algal biofuels: a critical review and perspective for the future

2023

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Section: Current State Of Microalgal Biofuel Researchmentioning

confidence: 99%

Machine learning for algal biofuels: a critical review and perspective for the future

2023

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“…To combat the oxygen inhibition of hydrogenase and sustain biohydrogen production in microalgae during biophotolysis, a two-stage process (indirect biophotolysis) has been developed, separating hydrogen production activities from oxygen evolution [140]. In the first stage, cells undergo photosynthesis under aerobic conditions to fix carbon dioxide into biomass and release oxygen (6H 2 O + 6CO 2 + light energy → C 6 H 12 O 6 + 6O 2 ).…”

Section: Biophotolysismentioning

confidence: 99%

“…Fermentation can be categorized into photo and dark fermentation (Table 7). The photo fermentation (PF) process employs photosynthetic bacteria, mainly purple non-sulfur (PNS) bacteria, to convert organic compounds (acetate, butyrate, lactate) into biohydrogen and carbon dioxide using a light energy [140]. The ratio of biohydrogen to carbon dioxide produced during the PF process can vary depending on the type of substrate used [169].…”

Section: Fermentationmentioning

confidence: 99%

From Microalgae to Bioenergy: Recent Advances in Biochemical Conversion Processes

et al. 2023

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Concerns about rising energy demand, fossil fuel depletion, and global warming have increased interest in developing and utilizing alternate renewable energy sources. Among the available renewable resources, microalgae biomass, a third-generation feedstock, is promising for energy production due to its rich biochemical composition, metabolic elasticity, and ability to produce numerous bioenergy products, including biomethane, biohydrogen, and bioethanol. However, the true potential of microalgae biomass in the future bioenergy economy is yet to be realized. This review provides a comprehensive overview of various biochemical conversion processes (anaerobic digestion, direct biophotolysis, indirect biophotolysis, photo fermentation, dark fermentation, microalgae-catalyzed photo fermentation, microalgae-catalyzed dark fermentation, and traditional alcoholic fermentation by ethanologenic microorganisms) that could be adapted to transform microalgae biomass into different bioenergy products. Recent advances in biochemical conversion processes are compiled and critically analyzed, and their limitations in terms of process viability, efficacy, scalability, and economic and environmental sustainability are highlighted. Based on the current research stage and technological development, biomethane production from anaerobic digestion and bioethanol production from traditional fermentation are identified as promising methods for the future commercialization of microalgae-based bioenergy. However, significant challenges to these technologies’ commercialization remain, including the high microalgae production costs and low energy recovery efficiency. Future research should focus on reducing microalgae production costs, developing an integrated biorefinery approach, and effectively utilizing artificial intelligence tools for process optimization and scale-up to solve the current challenges and accelerate the development of microalgae-based bioenergy.

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“…Por el contrario, las desventajas de los sistemas abiertos son las altas necesidades de superficie al operar normalmente con altos TRC, las pérdidas de agua por evaporación (que provoca un aumento de la salinidad), la alta dependencia de los factores climáticos (luz solar y temperatura), la baja eficiencia fotosintética y el alto riesgo de contaminación a los que están expuestos (hongos, bacterias, protozoos, etc.) (Ali et al, 2022;Sung et al, 2022).…”

Section: Sistemas Abiertos (Algal Ponds)unclassified

Modelación matemática del proceso de crecimiento de microalgas en el tratamiento de aguas residuales Aplicación a un fotobiorreactor de membranas (MPBR).

Viruela Navarro

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Microalgae-derived hydrogen production towards low carbon emissions via large-scale outdoor systems

Cited by 14 publications

References 103 publications

Machine learning for algal biofuels: a critical review and perspective for the future

Machine learning for algal biofuels: a critical review and perspective for the future

From Microalgae to Bioenergy: Recent Advances in Biochemical Conversion Processes

Modelación matemática del proceso de crecimiento de microalgas en el tratamiento de aguas residuales Aplicación a un fotobiorreactor de membranas (MPBR).

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