Renewable hydrogen production by dark-fermentation: Current status, challenges and perspectives

Dahiya, Shikha; Chatterjee, Sulogna; Sarkar, Omprakash; Mohan, S. Venkata

doi:10.1016/j.biortech.2020.124354

Cited by 196 publications

(50 citation statements)

References 109 publications

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“…Nevertheless, especially regarding environmental and economic sustainability, high hydrogen consumption may prove a major drawback for the large-scale implementation of jet biofuels [36]. Furthermore, despite several efforts to obtain it from renewable resources, hydrogen has been mainly produced from non-renewable resources, particularly from natural gas steam reforming or from coal gasification [99][100][101][102][103]. Consequently, it is crucial to minimize hydrogen consumption in the HEFA pathway [36].…”

Section: Hydrogen Consumptionmentioning

confidence: 99%

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

et al. 2022

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The transition from fossil to bio-based fuels is a requisite for reducing CO2 emissions in the aviation sector. Jet biofuels are alternative aviation fuels with similar chemical composition and performance of fossil jet fuels. In this context, the Hydroprocessing of Esters and Fatty Acids (HEFA) presents the most consolidated pathway for producing jet biofuels. The process for converting esters and/or fatty acids into hydrocarbons may involve hydrodeoxygenation, hydrocracking and hydroisomerization, depending on the chemical composition of the selected feedstock and the desired fuel properties. Furthermore, the HEFA process is usually performed under high H2 pressures and temperatures, with reactions mediated by a heterogeneous catalyst. In this framework, supported noble metals have been preferably employed in the HEFA process; however, some efforts were reported to utilize non-noble metals, achieving a similar performance of noble metals. Besides the metallic site, the acidic site of the catalyst is crucial for product selectivity. Bifunctional catalysts have been employed for the complete process of jet biofuel production with standardized properties, with a special remark for using zeolites as support. The proper design of heterogeneous catalysts may also reduce the consumption of hydrogen. Finally, the potential of enzymes as catalysts for intermediate products of the HEFA pathway is highlighted.

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Section: Hydrogen Consumptionmentioning

confidence: 99%

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

et al. 2022

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“…In dark-fermentation process, hydrogen is produced from organic materials, such as sugars, amino acids, waste materials, wastewaters and so on, without light, by using anaerobic organisms [106]. Dark-fermentation is considered a promising alternative to traditional hydrogen production methods, due to the low estimated production costs [107]. Hydrogen-producing bacteria can be classified as spore-forming obligate anaerobic bacteria, non-sporulating anaerobes and, facultative bacteria (Figure 6) [108].…”

Section: Dark-fermentationmentioning

confidence: 99%

Main Hydrogen Production Processes: An Overview

et al. 2021

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Due to its characteristics, hydrogen is considered the energy carrier of the future. Its use as a fuel generates reduced pollution, as if burned it almost exclusively produces water vapor. Hydrogen can be produced from numerous sources, both of fossil and renewable origin, and with as many production processes, which can use renewable or non-renewable energy sources. To achieve carbon neutrality, the sources must necessarily be renewable, and the production processes themselves must use renewable energy sources. In this review article the main characteristics of the most used hydrogen production methods are summarized, mainly focusing on renewable feedstocks, furthermore a series of relevant articles published in the last year, are reviewed. The production methods are grouped according to the type of energy they use; and at the end of each section the strengths and limitations of the processes are highlighted. The conclusions compare the main characteristics of the production processes studied and contextualize their possible use.

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“…6 Dark fermentation/acidogenic fermentation is a versatile process capable of efficiently converting various organic substrates (waste/wastewater) to bio-hydrogen (bio-H 2 ) under ambient temperature and pressure. 3,[6][7][8] The added advantage of acidogenic fermentation is co-production of short-chain carboxylic acids (SCCA), including acetic (C2), propionic (C3), butyric (C4), and valeric (C5) acids, which can serve as platform chemicals for industrial applications. 9,10 The demand for volatile fatty acids (VFAs), including the above SCCA, is expected to increase over the coming years due to their numerous applications as fuel precursors, as well as in pharmaceutical, and household chemical formulations.…”

Section: Introductionmentioning

confidence: 99%

Green hydrogen and platform chemicals production from acidogenic conversion of brewery spent grains co-fermented with cheese whey wastewater: adding value to acidogenic CO₂

Sarkar

Christakopoulos

Μάτσακας

2022

Sustainable Energy Fuels

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Renewable hydrogen production by dark-fermentation: Current status, challenges and perspectives

Cited by 196 publications

References 109 publications

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

Main Hydrogen Production Processes: An Overview

Green hydrogen and platform chemicals production from acidogenic conversion of brewery spent grains co-fermented with cheese whey wastewater: adding value to acidogenic CO₂

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Renewable hydrogen production by dark-fermentation: Current status, challenges and perspectives

Cited by 196 publications

References 109 publications

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

Production of Jet Biofuels by Catalytic Hydroprocessing of Esters and Fatty Acids: A Review

Main Hydrogen Production Processes: An Overview

Green hydrogen and platform chemicals production from acidogenic conversion of brewery spent grains co-fermented with cheese whey wastewater: adding value to acidogenic CO2

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Product

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Green hydrogen and platform chemicals production from acidogenic conversion of brewery spent grains co-fermented with cheese whey wastewater: adding value to acidogenic CO₂