hydrogen production Articles
-
Copper-doped ZnO/ZnS core/shell nanotube as a novel photocatalyst system for photocatalytic hydrogen production under visible light
A novel Cu2+ ZnO/ZnS core/shell tubular photocatalyst system was successfully constructed. TEM images showed that the ZnO nanotubes were covered with ZnS nanoparticles. It was found that 1% Cu2+-doped ZnO/ZnS showed significantly higher hydrogen production rate than that without Cu doping. Photo-generated electrons in Cu-doped ZnS nanoparticles migrated from ZnS to ZnO nanotubes, led to enhanced ...
-
Hydrogen production on Utsira
The hydrogen plant on Utsira has started producing electricity. This means that the 10 households in the island community west of Karmøy are one step closer to becoming a selfsufficient hydrogen society. From the summer, 10 of the households on the island of Utsira will get all their electricity in the form of renewable energy. This is the world's first full-scale autonomous renewable ...
-
A summary of the Third Information Exchange Meeting on the nuclear production of hydrogen
The Nuclear Energy Agency of the Organisation for Economic Co-operation and Development has organised three international exchange meetings on hydrogen production through nuclear power. The most recent meeting was held in October 2005 in Oarai, Japan, and was sponsored by the International Atomic Energy Agency. The two-and-a-half-day conference covered a full range of topics related to the ...
-
Hydrogen production by high temperature electrolysis coupled with an EPR, SFR or HTR: techno-economic study and coupling possibilities
Hydrogen production by high temperature electrolysis coupled with three nuclear reactors (the European pressurised reactor, the sodium-cooled fast reactor and the very high temperature reactor) was studied in terms of perspectives and hydrogen production costs. Firstly, we present the features of producing water steam by using the three nuclear reactors. Secondly, we present the hydrogen ...
-
Coupling the nickel–iodine–sulphur cycle with a nuclear reactor
Nuclear hydrogen production is a technically feasible and economically viable option for addressing future energy needs. Several projects have been started on the co–generation of hydrogen and electricity from nuclear energy. In this report, the nickel sulphur iodine (NIS) cycle, a thermochemical water splitting cycle originally developed in ENEA for solar hydrogen production, was studied to be ...
-
Modification of dolomite for hydrogen production via catalytic gasification of residue derived from biomass hydrolysis
Calcined dolomite is a good catalyst in terms of its activity for gasification of residue derived from biomass hydrolysis for hydrogen production, whereas its fragility can cause trouble during operation. A novel modification method aimed at improving the strength of the calcined dolomite has been presented using magnesium nitrate as the modifier, which was introduced into the dolomite via a ...
-
Biological hydrogen production: effects of inoculation and production media
In this work inoculation media are selected as potato, glycerine and milk to investigate the best storage condition that is important to maintain microorganism activity and stable hydrogen production performance. Cheese whey, potato and enriched potato (with additional glucose and CaCO3) are used as the production media and their hydrogen production results are compared in order to determine the ...
-
Concurrent photocatalytic hydrogen production and organic degradation by a composite catalyst film in a two-chamber photo-reactor
A novel visible light-driven photocatalyst film, MoS2/Ag/TiO2, was synthesized on a glass-fiber membrane. The composite catalyst film had a multi-layer structure with Ag as nanoconjunctions between the MoS2 and TiO2 layers. The catalyst film performed well for both photocatalytic hydrogen production and organic degradation in a two-chamber photo-reactor under either solar or visible light. ...
-
Evaluation of low-cost cathode catalysts for high yield biohydrogen production in microbial electrolysis cell
As an ideal fuel due to the advantages of no pollution, high combustion heat and abundant sources, hydrogen gas can be produced from organic matter through the electrohydrogenesis process in microbial electrolysis cells. But in many MECs, platinum is often used as catalyst, which limits the practical applications of MECs. To reduce the cost of the MECs, Ni-based alloy cathodes were developed by ...
-
Effect of pH control strategies and substrate concentration on the hydrogen yield from fermentative hydrogen production in large laboratory-scale
A series of batch experiments investigating two different pH control strategies, initial pH adjustment and continuous pH control, have been carried out in large laboratory-scale reactors with working volumes of 30 L. In both cases, pH was varied between 5 and 7.5. Sucrose concentrations were also varied starting from 0 up to 30 g/L. Higher hydrogen production yields can be achieved by batch ...
-
Hydrogen Market in APAC
Hydrogen as a clean and green energy resource has attracted extensive attention to hydrogen research and application worldwide. Recently, APAC’s countries, like Australia, Japan, Korea, China, have issued some new policies to support hydrogen development, and even some of those put the development of hydrogen energy at a strategic level. This report mainly introduces the development and ...
-
Coupling a hydrogen production process to a nuclear reactor
Work is currently underway to define a pre-conceptual design of a hydrogen production plant. The reference case is a VHTR dedicated to hydrogen production using the sulphur-iodine process. The chemical part of the plant is based on a very detailed flow-sheet where all components are listed. Considering the volume and flow-rates of the circulating products, a detailed image of the chemical plant ...
-
Potential applications of amorphous/metallic glassy alloys as hydrogen-permeable membranes for hydrogen production and bipolar plates for PEFC
The potential of amorphous/metallic glassy alloys as hydrogen-permeable membranes for hydrogen production and as bipolar plates for Polymer Electrolyte Fuel Cells (PEFCs) was investigated in this paper. Firstly, the hydrogen permeation of the melt-spun (Ni0.6Nb0.4)70Zr30-xTax (x = 5, 10, 15, 20 at%) alloys was measured. As a result, it was found that the hydrogen permeability of the alloys ...
-
Simultaneous copper ion removal and hydrogen production from water over a TiO2 nanotube photocatalyst
A one-dimensional (1-D) mesoporous TiO2 nanotube (TiNT) was successfully synthesized via a hydrothermal-calcination process, and employed in simultaneous photocatalytic Cu2+ removal and H2 production. Under irradiation, Cu2+ in the wide concentration range of 8–800 ppm, could be reduced rapidly, and the reduction was not severely impacted by co-existing inorganic ions in solution. Simultaneous ...
-
The sulphur–iodine and other thermochemical process studies at CEA
The thermochemical sulphur–iodine process is studied by CEA with the objective of massive hydrogen production using the heat coming from a high temperature reactor. A two-fold programme was set up in 2000. The main part is devoted to the study of the basic process, including optimisation of a detailed flow-sheet, thermodynamics measurements and industrial plant evaluation. In parallel, an ...
-
Assessment of optimum dilution ratio for biohydrogen production by anaerobic co-digestion of press mud with sewage and water
Anaerobic co-digestion of press mud with water or sewage at ratios of 1:7.5, 1:10 and 1:12.5 were performed in continuously fed UASB reactors for hydrogen production. At a constant hydraulic retention time of 30 h, the specific hydrogen production rate was 187 mL/g volatile solids (VS) reduced during maximum biohydrogen production of 7960 mL/day at a 1:10 ratio of press mud to sewage. Chemical ...
-
The possibilities for hydrogen production from H2S and storage in the Black Sea
The Black Sea, a highly isolated inland sea, is the largest anoxic zone in the world. Since the hydrogen sulphide (H2S) zone was discovered in the early 19th century in the Black Sea, it has been accepted that there is no life in the depths of the Black Sea and only bacteria live in the H2S layer. A high content of organic matter, with maximum processes of bacterial sulphate reduction, is the ...
-
Project - CCB Energy Park
ZEG Power and CCB has entered into strategic cooperation to establish significant capacity for clean hydrogen production from gas at CCB Energy Park at Kollsnes, enabled by ZEG Power’s innovative ZEG-H2 plants, based on an enhanced reforming technology with integrated CO2 ...
By ZEG Power AS
-
Dynamical safety assessment of hydrogen production nuclear power plants using system dynamics method
Nuclear power plants for hydrogen production are investigated in the aspect of nuclear safety. The non–linear dynamical safety assessment is introduced for the analysis of the high temperature gas cooled reactor (HTGR) which is used for hydrogen production as well as electricity generation. The dynamical algorithm is adjusted for the safety assessment with an easier and reliable output. A ...
-
Enhancement of hydrogen production from Kitchen Waste using heat treated anaerobic biogas plant slurry with pH control
Hydrogen is found to be a clean energy source; biohydrogen has been researched in recent years. Anaerobic Digestion of Kitchen Waste (KW) for hydrogen production was performed in lab scale reactors, using heat-treated anaerobically digested biogas plant slurry. The biogas plant slurry was given heat treatment at varying temperatures ranging from 70 to 100 ° C for 15 min. Enhancement of hydrogen ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you