GX & Decarbonization Research

Kaoutar Eddarraji, Achraf El Kasmi

This review examines ammonia production processes in the context of hydrogen pathway evolution, analyzing gray, blue, and green hydrogen technologies for environmental performance, technological maturity, and economic constraints. It conclu…

M. Kozak, E. Köroğlu, Z. Zaimoğlu +1

This study proposes an anaerobic membrane biofilm reactor to overcome low hydrogen solubility in ex-situ methanation, enhancing methane production efficiency and offering a pathway for carbon capture and utilization.

Irtaza Bashir Raja, Yasir Ahmad, Tariq Feroze +1

This study develops a closed-loop solar-green hydrogen system that recycles industrial wastewater, achieving 90% water recovery. It reduces LCOE from 0.10 to 0.0866 USD/kWh and avoids approximately 157,000 tCO2-eq emissions. The framework i…

Haitham Al Qahtani

This study proposes an AI framework integrating HGBO, VIKOR, and ConvLSTM to optimize catalyst-condition combinations in methane steam reforming for hydrogen production. Evaluated on 620 experimental cases, it achieves hydrogen yield up to …

Huijie Wang, Chen Wang

This review comprehensively summarizes recent progress in nanofluidic membranes for hydrogen purification. It covers fabrication strategies (in-situ growth, vacuum filtration, spin-coating) and design principles (size exclusion, surface cha…

Shuangshuang Lin, Xin Chang, Shimin Liu

This critical review synthesizes knowledge on integrating hydrogen production and subsurface storage for a sustainable hydrogen economy. It covers geological storage options (salt caverns, depleted reservoirs, aquifers) and key challenges s…

Anshul Kushwaha, Jadhav Girish V, Neha Kulshreshtha

This study analyzes global hydrogen power projects using the IEA Hydrogen Projects Database with MATLAB. It finds a sharp increase in projects since 2015, dominance of electrolysis (green hydrogen), and leadership by developed countries lik…

Megalingam Arumugampillai, Hariram Nediyirippil Prakasan, Shanmuga Priya Selvanathan +1

This review assesses electrofuels (e-fuels) for decarbonizing aviation, maritime, rail, and heavy road transport. Production costs are currently high (€3-6/L e-diesel), but scale-up and learning curves could achieve €1.5-3.0/L by 2030 with …

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This paper discusses the technological and policy challenges and prospects for realizing a hydrogen society. It focuses on Japan's hydrogen strategy and related initiatives, also considering international trends.

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This paper explores the potential of SOEC methanation technology to achieve green transformation (GX) of city gas. It synthesizes methane from CO2 and hydrogen from renewable energy, contributing to carbon-neutral city gas supply.

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This paper discusses challenges and strategies for building a hydrogen society. Although specific content is unknown, it is presumed to contribute to decarbonization through hydrogen energy.

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This paper discusses the role of finance in building a hydrogen energy society. It presents specific financing mechanisms and risk assessment methods, and proposes policy frameworks to accelerate capital flows for decarbonization.

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This paper discusses accelerating the introduction of e-methane (synthetic methane) for carbon-neutral city gas supply. e-Methane, produced from renewable hydrogen and CO2, can utilize existing gas infrastructure.

Ravi Kumar, Anil Kumar

This paper provides a thermodynamic review of steam reforming processes for methane and biogas. It analyzes the effects of CH4 concentration, CO2 concentration, and S/C ratio, showing that increasing S/C ratio enhances CH4 conversion by 70–…

Ekaterina A. Arlashchenkova

This paper identifies financial and economic mechanisms to stimulate hydrogen energy in the global energy transition. Using content and comparative analysis, it finds that project financing and public-private partnerships are effective in c…

Sanghyuk Koh, Seokju Kim, Boreum Lee

This study quantifies scope 1-3 emissions for major water electrolysis technologies, revealing that upstream materials and electricity carbon intensity are the dominant factors. Achieving a net-zero grid can reduce lifecycle emissions by 79…

Majdi Argoubi, Khaled Mili

This paper proposes a multi-period MILP model for optimizing hydrogen supply chains, applied to Saudi Arabia (2025-2045). It simultaneously optimizes four production zones, three carriers (compressed H2, liquefied H2, ammonia), and ten dest…

Q Alkhawlani, Sameer Algburi, Salah Sabeeh +2

This review evaluates solar- and wind-powered green hydrogen pathways, covering system design, electrolyser operation, storage, economics, environmental footprints, and policy. It presents a roadmap targeting <$2/kg by 2040 through cost red…

Ifeanyi Oramulu, Vincent P. Paglioni

This review examines the current state of the hydrogen economy, including production methods (green, blue, gray), applications, and challenges. Green hydrogen offers the cleanest pathway but faces high costs and infrastructure barriers. The…

M. Altaf, J.C. Maurya, AK Haldar

This chapter reviews recent progress in hybrid materials for hydrogen storage, targeting international benchmarks (USDOE 6.5 wt%, FCH JU 6 wt%). It emphasizes synergy between hydrogen and circular economies, highlighting electrolysis as a k…