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Showing 1 to 16 of 16 for “"Thermochemical cycle"”.
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Modified Nafion membranes for hydrogen production in Cu-Cl thermochemical cycle
The decomposition of water by a thermochemical cycle is a promising green method of producing hydrogen on a large scale. A thermochemical cycle is a combination of thermal and chemical reactions that ultimately leads to splitting water into hydrogen and oxygen. The Cu-Cl cycle, which is one of the …
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Copper Chloride Electrolyzer For the Production of Hydrogen Via the Copper-Chlorine Thermochemical Cycle
… produced using some other hydrogen rich source. Thermochemical water decomposition is a promising alternative to steam-methane reforming and electrolytic water splitting for a sustainable method of large-scale hydrogen production. The Copper-Chlorine thermochemical cycle is one of prime …
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System integration and optimization of copper-chlorine thermochemical cycle with various options for hydrogen production
The Copper-Chlorine (Cu-Cl) thermochemical water splitting cycle is one of the most attractive alternative thermochemical cycles for clean hydrogen production due to its lower temperature requirement and better overall efficiency. CuCl electrolysis is considered a key process in the Cu-Cl cycle of …
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Energy, exergy and cost analyses of nuclear-based hydrogen production via thermochemical water decomposition using a copper-chlorine (Cu-CI) cycle
In this thesis the Copper-Chlorine (Cu-CI) thermochemical cycle and its components as well as operational and environmental conditions are defined, and a comprehensive thermodynamic analysis of a Cu-CI thermochemical cycle, including the relevant chemical reactions, is performed. Also the …
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Development of a PSA-based safety assessment and management framework for nuclear-based hydrogen generation system.
The nuclear-based Cooper-Chloride (Cu-Cl) thermochemical cycle a promising method for future large-scale hydrogen generation. The nuclear-based hydrogen generation leads to new challenge for system safety due to the complexity of the co-generation system. In this research, a PSA-based framework for …
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Study on linking a SuperCritical water-cooled nuclear reactor to a hydrogen production facility
… Nuclear Power Plant (NPP) suitable to support thermochemical-based hydrogen production via co-generation. The Copper-Chlorine (Cu‒Cl) cycle is a prospective thermochemical cycle with a maximum temperature requirement of ~530°C and could be linked to an SCW NPP through a piping network. An …
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The production and characterization of ceramic carbon electrode materials for CuCl-HCl electrolysis.
… solution to this problem is the Cu-Cl hybrid thermochemical cycle. The cycle captures waste heat to drive two thermochemical steps creating CuCl as well as O2 gas and HCl from CuCl2 and water. The CuCl is oxidized in HCl to produce H2 gas and regenerate CuCl2, this process occurs at potentials …
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Design of a fault tolerant control scheme based on sliding mode for Canadian supercritical water reactor
… co-hydrogen production through copper chlorine thermochemical cycle. To maintain the balance between the hydrogen production and electricity production effectively and to utilize the waste heat more efficiently, a well-designed control system for the Canadian SCWR is needed. The SCWR is a …
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Heat and fluid flow analysis in a molten CuCl heat exchanger
The Cu-Cl thermochemical cycle is a promising method to generate hydrogen as a clean fuel for human use in the future. The cycle can be coupled to nuclear reactors to supply its heat requirements. The cycle generates hydrogen by splitting water molecules through a series of chemical reactions. …
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Study of the effect of molten CuCl immersion test on alloys with high Ni-content with and without surface coatings
… energy carrier has increased greatly. The Cu-Cl cycle is a promising thermochemical cycle that is currently being developed to be the large-scale method of hydrogen production. The lifetime of materials for the pipes transporting molten CuCl is an important parameter for an economic design of a …
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Kinetics and transport phenomena in the chemical decomposition of copper oxychloride in the thermochemical Cu-CI Cycle
The thermochemical copper-chlorine (Cu-Cl) cycle for hydrogen production includes three chemical reactions of hydrolysis, decomposition and electrolysis. The decomposition of copper oxychloride establishes the high-temperature limit of the cycle. Between 430 and 530 oC, copper oxychloride (Cu2OCl2) …
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Evaluation of the effects of molten CuCl on corrosion resistant coatings
… by thermo-chemical decomposition of water. Cu-Cl cycle is selected and preferred on other cycles based on its low operating temperature and cost. Plans for the design and construction of a hydrogen production pilot plant using the CuCl thermochemical cycle are being proposed. Currently researchers …
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Development and analysis of a high temperature electrolyser for the Cu-Cl cycle for hydrogen production
A number of thermochemical cycles have been investigated to produce hydrogen from water. However, most of these cycles operate at over 800°C. The relatively lower temperature (550°C) requirement and use of inexpensive chemicals make the copper-chlorine (Cu-Cl) thermochemical cycle a promising …
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Thermochemical Interconnectivities of Active Sites on Metal Oxides and their Catalytic Consequences in C−O Formation and C−H Scission Chemistry
… into value-added chemicals, yet their intrinsic thermochemical and electronic interconnectivities, along with the resulting kinetic correlations of reactions that they catalyze, have not been quantitatively examined and established. In this thesis, alkanol dehydration (DEH) and oxidative …
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Evaluation of process parameters and membranes for SO2 electrolysis
… hydrogen production are available, sulphur-based thermochemical processes (such as the Hybrid Sulfur Process (HyS)) are favoured as alternative options for large scale application. The SO2 electrolyser is applied in producing H2 gas and H2SO4 by electro-chemically converting SO2 gas and water. …