Production & Supply Chain
An Overview of Low-carbon Hydrogen Production via Water Splitting Driven by Piezoelectric and Pyroelectric Catalysis
Jun 2024
Publication
The focus on sustainable energy sources is intensifying as they present a viable alternative to conventional fossil fuels. The emergence of clean and renewable hydrogen fuel marks a significant technological shift toward decarbonizing the environment. Harnessing mechanical and thermal energy through piezoelectric and pyroelectric catalysis has emerged as an effective strategy for producing hydrogen and contributing to reducing dependence on Read More
An Estimation of Green Hydrogen Generation from Wind Energy: A Case Study from KSA
Sep 2023
Publication
Actually green hydrogen is viewed as a fundamental component in accelerating energy transition and empowering a sustainable future. The current study focuses on the estimation of green hydrogen generation by using wind energy via electrolysis in four sites located in Saudi Arabia. Results showed that the yearly amount of hydrogen that could be generated by using wind turbine ranges between 2542877 kg in Rafha and 3676925 kg in Dhahran. The Read More
Italian Offshore Platform and Depleted Reservoir Conversion in the Energy Transition Perspective
Aug 2023
Publication
New hypotheses for reusing platforms reaching their end-of-life have been investigated in several works discussing the potential conversions of these infrastructures from recreational tourism to fish farming. In this perspective paper we discuss the conversion options that could be of interest in the context of the current energy transition with reference to the off-shore Italian scenario. The study was developed in support of the development of a natio Read More
Application of the Metalog Probability Distribution Family to Predict Energy Production by Photovoltaic Systems for the Purposes of Generating Green Hydrogen
Jul 2024
Publication
The article presents the application of the metalog family of probability distributions to predict the energy production of photovoltaic systems for the purpose of generating small amounts of green hydrogen in distributed systems. It can be used for transport purposes as well as to generate energy and heat for housing purposes. The monthly and daily amounts of energy produced by a photovoltaic system with a peak power of 6.15 kWp were analyzed usi Read More
Life-cycle Assessment of Hydrogen Produced through Chemical Looping Dry Reforming of Biogas
Jun 2024
Publication
Chemical looping dry reforming of methane (CLDRM) using perovskites as a catalyst is considered a promising option for producing hydrogen from biogas. In this work the life-cycle performance of a system compiling a CLDRM unit paired with a water gas shift unit a pressure swing adsorption unit and a combined cycle scheme to provide steam and electricity was assessed. The main data needed to reflect the behavior of the reforming reaction was obtaine Read More
Resilience Assessment of Offshore Wind-to-Hydrogen Systems
Jul 2024
Publication
Low-cost green hydrogen production will be key in reaching net zero carbon emissions by 2050. Green hydrogen can be produced by electrolysis using renewable energy including wind energy. However the configuration of offshore wind-to-hydrogen systems is not yet standardised. For example electrolysis can take place onshore or offshore. This work presents a framework to assess and quantify which configuration is more resilient so that security o Read More
A Review of Hydrogen Production via Seawater Electrolysis: Current Status and Challenges
Oct 2024
Publication
Seawater electrolysis represents a promising green energy technology with significant potential for efficient energy conversion. This study provides an in-depth examination of the key scientific challenges inherent in the seawater-electrolysis process and their potential solutions. Initially it analyzes the potential issues of precipitation and aggregation at the cathode during hydrogen evolution proposing strategies such as self-cleaning cathodes and precipit Read More
Sustainable Energy Solutions: Utilising UGS for Hydrogen Production by Electrolysis
Jul 2024
Publication
Increasing the share of renewable energy sources (RESs) in the energy mix of countries is one of the main objectives of the energy transition in national economies which must be established on circular economy principles. In the natural gas storage in geological structures (UGSs) natural gas is stored in a gas reservoir at high reservoir pressure. During a withdrawal cycle the energy of the stored pressurised gas is irreversibly lost at the reduction station Read More
Critical and Strategic Materials for Electrolysers, Fuel Cells, Metal Hydrides and Hydrogen Seperation Technologies
May 2024
Publication
This paper provides an in-depth examination of critical and strategic raw materials (CRMs) and their crucial role in the development of electrolyzer and fuel cell technologies within the hydrogen economy. It methodically analyses a range of electrolyzer technologies including alkaline proton-exchange membrane solid-oxide anion-exchange membrane and proton-conducting ceramic systems. Each technology is examined for its specific CRM dependencies o Read More
Recent Advances in Membrane-based Electrochemical Hydrogen Separation: A Review
Feb 2021
Publication
In this paper an overview of commercial hydrogen separation technologies is given. These technologies are discussed and compared—with a detailed discussion on membrane-based technologies. An emerging and promising novel hydrogen separation technology namely electrochemical hydrogen separation (EHS) is reviewed in detail. EHS has many advantages over conventional separation systems (e.g. it is not energy intensive it is environ Read More
Prediction of Hydrogen Production in Proton Exchange Membrane Water Electrolysis via Neural Networks
Sep 2024
Publication
Advancements in water electrolysis technologies are crucial for green hydrogen production. Proton exchange membrane water electrolysis (PEMWE) is characterized by its efficiency and environmental benefits. The pre diction and optimization of hydrogen production rates (HPRs) in PEMWE systems is difficult and still challenging because of the complexity of the system as well as the operational parameters. The integration of artificial in telligence (AI) a Read More
Review and Prospects of Key Technologies for Integrated Systems in Hydrogen Production from Offshore Superconducting Wind Power
Dec 2024
Publication
Hydrogen production from renewable energy sources is a crucial pathway to achieving the carbon peak target and realizing the vision of carbon neutrality. The hydrogen production from offshore superconducting wind power (HPOSWP) integrated systems as an innovative technology in the renewable energy hydrogen production field holds significant market potential and promising development prospects. This integrated technology based on research Read More
Thermodynamic and Techno-Economic Performance Comparison of Methanol Aqueous Phase Reforming and Steam Reforming for Hydrogen Production
Dec 2024
Publication
Methanol which can be derived from sustainable energy sources such as biomass solar power and wind power is widely considered an ideal hydrogen carrier for distributed and mobile hydrogen production. In this study a comprehensive comparison of the thermodynamic and techno-economic performance of the aqueous phase reforming (APR) and steam reforming (SR) of methanol was conducted using Aspen Plus and CAPCOST software to evaluate the c Read More
Advanced Rectifier Technologies for Electrolysis-Based Hydrogen Production: A Comparative Study and Real-World Applications
Dec 2024
Publication
In response to the growing significance of hydrogen as a clean energy carrier this study investigates the advanced rectifier technologies employed in electrolytic hydrogen production. First the topologies of three rectifiers typically employed in industry—24-pulse thyristor rectifiers insulated gate bipolar transistor (IGBT) rectifiers and 24-pulse diode rectifiers with multi-phase choppers—are described in detail. Subsequently at a constant 5 MW pow Read More
Review of Reforming Processes for the Production of Green Hydrogen from Landfill Gas
Dec 2024
Publication
The growing challenges of climate change the depletion of fossil fuel reserves and the urgent need for carbon-neutral energy solutions have intensified the focus on renewable energy. In this perspective the generation of green hydrogen from renewable sources like biogas/landfill gas (LFG) offers an intriguing option providing the dual benefits of a sustainable hydrogen supply and enhanced waste management through energy innovation and valorization Read More
Recent Research Progresses and Challenges for Practical Application of Large-Scale Solar Hydrogen Production
Dec 2024
Publication
Solar hydrogen production is a promising pathway for sustainable CO2 -free hydrogen production. It is mainly classified into three systems: photovoltaic electrolysis (PV-EC) photoelectrochemical (PEC) system and particulate photocatalytic (PC) system. However it still has trouble in commercialization due to the limitation of performance and economic feasibility in the large-scale system. In this review the challenges of each large-scale system are resp Read More
A Gis-based on Application of Monte Carlo and Multi-criteria Decision-making Approach for Site Suitability Analysis of Solar-hydrogen Production: Case of Cameroon
Dec 2024
Publication
This article analyzes and compares three methodologies for identifying suitable regions for solar hydrogen production using photovoltaic panels: AHP (Analytic Hierarchy Process) FAHP (Fuzzy Analytic Hierarchy Process) and MC-FAHP (Monte Carlo FAHP) integrated with GIS (Geographic Information Systems). The study employs ten criteria across technical (Global Horizontal Irra diance temperature slope elevation orientation) economic (distance from tr Read More
Sustainable Green Hydrogen Production: Trading Off Costs and Environmental Impacts
Dec 2024
Publication
This work develops a novel optimisation approach to determine the optimal installed capacities of wind solar and hydrogen storage systems for the continuous production of green hydrogen targeting the lowest "True Cost of Hydrogen" (TCOH). TCOH is a metric that combines both costs and life cycle environmental impacts facilitating decision-making and supporting project design. Two hypothetical scenarios were evaluated using evolutionary o Read More
Enabling Large-scale Enhanced Hydrogen Production in Deep Underground Coal Gasification in the Context of a Hydrogen Economy
Dec 2024
Publication
Underground coal gasification (UCG) is an emerging clean energy technology with significant potential for enhanced hydrogen production especially when coupled with water injection. Previous lab-scale studies have explored this potential but the mechanisms driving water-assisted hydrogen enhancement in large-scale deep UCG settings remain unclear. This study addresses this gap using numerical simulations of a large-scale deep coal model designe Read More
Power Ultrasound as Performance Enhancer for Alkaline Water Electrolysis: A Review
Dec 2024
Publication
The industry is advancing decarbonization in hydrogen production through water splitting technologies like water electrolysis which involves the hydrogen evolution reaction (HER) at the cathode and oxygen evolution reaction (OER) at the anode. Alkaline water electrolyser (AWE) is particularly suited for industrial applications due to its use of cost-effective and abundant nickel-based electrodes. However AWE faces significant challenges including e Read More
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