Present and Projected Developments in Hydrogen Production: A Technological Review⁎

Nnabuife, Somtochukwu Godfrey; Ugbeh-Johnson, Judith; Okeke, Nonso Evaristus; Ogbonnaya, Chukwuma

doi:10.1016/j.ccst.2022.100042

Cited by 138 publications

(46 citation statements)

References 69 publications

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“…Comprehensive technological overviews of methods for hydrogen production, along with a discussion about major challenges, R&D priorities and potential prospects of H 2 can be found in recent reviews [148,149]. In general, there are three main routes for industrial-scale H 2 production and these are aptly referred to as grey, blue or green hydrogen production schemes, denoting the overall environmental footprint of the respective generation scheme [150,151].…”

Section: Sustainable H 2 Production Via Renewable Energymentioning

confidence: 99%

“…However, given the uncertainties and the inherently slow process of natural recycling of sequestrated carbon underground, it can be reasoned that direct utilization of CO 2 instead of its storage is the most efficient way of closing the human-induced carbon cycle in time frames that are meaningful for (and can be monitored by) humans. On the other hand, it is also expected that even larger supplies of surplus electricity will be generated in the future, due to the increased share of variable renewable sources in the energy mix in most parts of the world, leading to increased need for RES energy curtailment [148,167]. Nevertheless, given the bottlenecks in large-scale electricity storage and the absence of other available transformation technologies at a sufficiently high TRL, this unavoidably intermittent excess electric energy is essentially projected to drive the development of readily available and mass-produced H 2 via water electrolysis [19,148].…”

Section: Integration Of Captured Co 2 With Res-derived Hmentioning

confidence: 99%

“…On the other hand, it is also expected that even larger supplies of surplus electricity will be generated in the future, due to the increased share of variable renewable sources in the energy mix in most parts of the world, leading to increased need for RES energy curtailment [148,167]. Nevertheless, given the bottlenecks in large-scale electricity storage and the absence of other available transformation technologies at a sufficiently high TRL, this unavoidably intermittent excess electric energy is essentially projected to drive the development of readily available and mass-produced H 2 via water electrolysis [19,148].…”

Section: Integration Of Captured Co 2 With Res-derived Hmentioning

confidence: 99%

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Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

et al. 2022

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The increasing trend in global energy demand has led to an extensive use of fossil fuels and subsequently in a marked increase in atmospheric CO2 content, which is the main culprit for the greenhouse effect. In order to successfully reverse this trend, many schemes for CO2 mitigation have been proposed, taking into consideration that large-scale decarbonization is still infeasible. At the same time, the projected increase in the share of variable renewables in the future energy mix will necessitate large-scale curtailment of excess energy. Collectively, the above crucial problems can be addressed by the general scheme of CO2 hydrogenation. This refers to the conversion of both captured CO2 and green H2 produced by RES-powered water electrolysis for the production of added-value chemicals and fuels, which are a great alternative to CO2 sequestration and the use of green H2 as a standalone fuel. Indeed, direct utilization of both CO2 and H2 via CO2 hydrogenation offers, on the one hand, the advantage of CO2 valorization instead of its permanent storage, and the direct transformation of otherwise curtailed excess electricity to stable and reliable carriers such as methane and methanol on the other, thereby bypassing the inherent complexities associated with the transformation towards a H2-based economy. In light of the above, herein an overview of the two main CO2 abatement schemes, Carbon Capture and Storage (CCS) and Carbon Capture and Utilization (CCU), is firstly presented, focusing on the route of CO2 hydrogenation by green electrolytic hydrogen. Next, the integration of large-scale RES-based H2 production with CO2 capture units on-site industrial point sources for the production of added-value chemicals and energy carriers is contextualized and highlighted. In this regard, a specific reference is made to the so-called Power-to-X schemes, exemplified by the production of synthetic natural gas via the Power-to-Gas route. Lastly, several outlooks towards the future of CO2 hydrogenation are presented.

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Section: Sustainable H 2 Production Via Renewable Energymentioning

confidence: 99%

Section: Integration Of Captured Co 2 With Res-derived Hmentioning

confidence: 99%

Section: Integration Of Captured Co 2 With Res-derived Hmentioning

confidence: 99%

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Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

et al. 2022

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“…Methane conversion to hydrogen can be carried out by different technologies like steam reforming, 17 thermal partial oxidation, 18 plasma reforming, 19 and catalytic decomposition 20,21 . Methane catalytic decomposition (MCD) in particular, is a promising technique since it can potentially produce hydrogen without CO or CO 2 emissions and consume less energy as compared to steam and plasma reforming techniques 8,16 .…”

Section: Introductionmentioning

confidence: 99%

Facile modification of cobalt ferrite by SiO ₂ and H‐ZSM‐5 support for hydrogen and filamentous carbon production from methane decomposition

Alharthi

Abdel‐Fattah

Alotaibi

et al. 2022

Intl J of Energy Research

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In this work, new catalyst composed of cobalt ferrite CoFe 2 O 4 supported on amorphous silica (SiO 2 ) and zeolite (H-ZSM-5) were prepared using impregnation method with loading ratio 1:1. The catalytic activity of the new 50 wt% CoFe 2 O 4 /SiO 2 and 50 wt% CoFe 2 O 4 /H-ZSM-5 catalysts were evaluated for direct methane decomposition to hydrogen production at fixed operating temperature of 800 C. The physiochemical properties of the fresh and spent catalysts were characterized by several techniques such as scanning electron microscope (SEM), X-ray diffractometer (XRD), Brunauer-Emmett-Teller, X-ray photoelectron spectroscopy (XPS), thermogravimetric (TGA), and Raman spectroscopy. The CoFe 2 O 4 /H-ZSM-5 catalyst exhibited higher activity and stability than CoFe 2 O 4 /SiO 2 catalyst. Maximum methane conversion reached 37.35% and hydrogen formation rate of 76.48 Â 10 À5 mol H 2 g À1 min À1 at time on stream (TOS) of 300 min for CoFe 2 O 4 /H-ZSM-5, while its 5.80% with 15.82 Â 10 À5 mol H 2 g À1 min À1 at TOS of 30 min. The XRD, Raman, and XPS results confirm the presence of CoFe 2 O 4 particles on the CoFe 2 O 4 /H-ZSM-5 catalyst surface, while the CoFe 2 O 4 particles partially shield with SiO 2 in CoFe 2 O 4 /SiO 2 catalyst. SEM images of spent catalysts elucidated the formation of filamentous carbon which indirectly confirm the higher distribution of CoFe 2 O 4 in CoFe 2 O 4 /H-ZSM-5 than that of CoFe 2 O 4 /SiO 2 . The deposited carbon on spent CoFe 2 O 4 /H-ZSM-5 catalyst was evaluated using TGA, which was found to be ca. 50 wt%. Highlights • CoFe 2 O 4 /SiO 2 and CoFe 2 O 4 /H-ZSM-5 catalysts synthesized and characterized by various techniques. • H-ZSM-5 and SiO 2 support material were found strongly affects the physiochemical properties and the methane decomposition activity of CoFe 2 O 4 catalyst. • CoFe 2 O 4 /H-ZSM-5 catalyst performance reached 37.4% and the hydrogen formation rate was 76.5 Â 10 À5 mol H 2 g À1 min À1 .

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“…Another 40 projects accounting for more than 35 GW of electrolyser capacity are at the early stages of development. The main green hydrogen source technologies are alkaline water electrolysis, proton-exchange membrane electrolysis, and solid oxide electrolysis, with the latter being in the research and first-trial phase [8]. If all planned projects are completed, global green hydrogen supply could reach more than 8 Mt by 2030, but this is still well below the 80 Mt required in the way to net zero CO 2 emissions by 2050 set out in the IEA Roadmap for the Global Energy Sector, or 70Mt short of the most conservative EU energy decarbonisation target for the same date [9].…”

Section: Introductionmentioning

confidence: 99%

The Green Hydrogen and the EU Gaseous Fuel Diversification Risks

Jansons

Zemite

Zeltins

et al. 2022

Latvian Journal of Physics and Technical Sciences

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Hydrogen is the most abundant chemical element on the Earth, and it has really a wide variety of applications, starting from use in refining, petrochemical industry, steel manufacturing, and ending with use in energy production and renewable gas (hereinafter – RG) blending for gradual replacement of natural gas in all sectors of the national economy. Being practically emission-free, if produced in sustainable way or from renewable energy sources (hereinafter – RES), hydrogen is regarded as one of the most promising energy sources for decarbonisation of practically the entire segment of industrial and energy production. Growing pressure of the European climate neutrality targets has triggered special interest in production, use, storage and transportation of hydrogen – especially the green one, which can be used in at least four fundamental ways: as a basic material, a fuel, an energy carrier and an energy storage medium. In the context of sector coupling, however, hydrogen facilitates decarbonisation of those industrial processes and economic sectors in which carbon dioxide (hereinafter – CO2) emissions can either not be reduced by electrification or this reduction would be minimal and linked to very high implementation costs. At the same time, development of an extensive hydrogen economy is the key to the achievement of the European climate protection targets, with the European Commission’s (hereinafter – EC) Hydrogen Strategy, a framework created in 2020 to develop and promote sustainable hydrogen economy in the European Union (hereinafter – EU), in its centre. Green hydrogen also will take its legitimate place in the gaseous fuel diversification risk management strategy, as this gaseous fuel is not only one of the most perspective future energy sources, but also one of the most volatile and demanding sources. In the process of gaseous fuel diversification in the EU and worldwide, new logistical chains and supply – demand networks of green hydrogen will emerge. Therefore, adequate addressing of potential challenges of this new regional and global production, delivery and consumption framework will be of utmost importance for secure, safe and predictable functioning of future energy systems.

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Present and Projected Developments in Hydrogen Production: A Technological Review⁎

Cited by 138 publications

References 69 publications

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

Facile modification of cobalt ferrite by SiO ₂ and H‐ZSM‐5 support for hydrogen and filamentous carbon production from methane decomposition

The Green Hydrogen and the EU Gaseous Fuel Diversification Risks

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Present and Projected Developments in Hydrogen Production: A Technological Review⁎

Cited by 138 publications

References 69 publications

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

Recent Advances on CO2 Mitigation Technologies: On the Role of Hydrogenation Route via Green H2

Facile modification of cobalt ferrite by SiO 2 and H‐ZSM‐5 support for hydrogen and filamentous carbon production from methane decomposition

The Green Hydrogen and the EU Gaseous Fuel Diversification Risks

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Product

Resources

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Facile modification of cobalt ferrite by SiO ₂ and H‐ZSM‐5 support for hydrogen and filamentous carbon production from methane decomposition