Constituent solubility and dissolution in a CuCl-HCl-H2O ternary system

Jianu, Ofelia A.; Wang, Zhaolin; Naterer, G.F.; Rosen, Marc A.

doi:10.1016/j.ces.2018.03.004

Cited by 8 publications

(8 citation statements)

References 19 publications

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“…The CuCl furnace was allowed to reach a steady state temperature of 500 ºC. Once the temperature was achieved, 24.5 g of CuCl powder was poured into the open end of the mini CuCl furnace and then closed with insulation to prevent the melting CuCl from oxidizing in air (Jianu et al, 2018). Meanwhile the cameras were set to start recording as the molten CuCl drips out of the furnace.…”

Section: Approach and Methodologymentioning

confidence: 99%

Investigation of Heat Extraction Methods from Cuprous Chloride for Improving the Efficiency of the Thermochemical Copper-Chlorine Cycle

Manan

Jianu

Rosen

2019

European Journal of Sustainable Development Research

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In order to improve the efficiency of the thermochemical copper-chlorine cycle (Cu-Cl) for hydrogen production, a quench cell configuration for the quenching of cuprous chloride (CuCl) is being investigated. Initial testing has been performed in water to determine whether the molten cuprous chloride can be cooled enough to be quenched in hydrochloric acid (HCl (aq)). Quenching in HCl (aq) would reduce the number of components in the overall cycle, simplifying it and potentially making it more cost effective. A thermal camera was used to experimentally obtain the heat loss as the CuCl falls through the heat exchanger and into the quench cell. In addition, a FlowSense 2M shadow imaging camera was used to observe the behavior of the CuCl droplets interacting with the quench solution. It was observed that the CuCl droplet disintegrating into dust like particles as it enters the water pool and vapour was generated hence the temperature at the surface of the droplet as it entered the liquid water exceeded 100 °C.

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Section: Approach and Methodologymentioning

confidence: 99%

Investigation of Heat Extraction Methods from Cuprous Chloride for Improving the Efficiency of the Thermochemical Copper-Chlorine Cycle

Manan

Jianu

Rosen

2019

European Journal of Sustainable Development Research

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“…An experimental apparatus to investigate dissolution rates of solid CuCl in aqueous HCl in the Cu-Cl cycle was designed and built at UOIT. From the experimental results, it was found that for a higher concentration of aqueous HCl and temperature of operation [15], there was a faster rate of dissolution of solid CuCl. One possibility for integration is to first quench the CuCl overflow from of oxygen reactor to obtain a CuCl-water slurry.…”

Section: Canadamentioning

confidence: 99%

Progress of the IAHE Nuclear Hydrogen Division on international hydrogen production programs

Odukoya

Naterer

Roeb

et al. 2016

International Journal of Hydrogen Energy

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This paper presents recent activities of the IAHE Nuclear Hydrogen Division and associated research advances in Canada, China, France, Germany, Poland, and Romania on programs and major initiatives on large-scale hydrogen production and utilization. Germany and France have made significant advances in high temperature steam electrolysis (HTSE). Germany has successfully demonstrated a 3-kW electrolyzer powered by solar energy. France demonstrated a 25-cell stack HTSE, which can produce 1.7 Nm 3 /hr of hydrogen. China has made significant progress in developing the Sulfur-Iodine cycle at a hydrogen production rate of 60 dm 3 /hr. A 10-cell HTSE was developed and tested at Tsinghua University, China. Romania is collaborating with Canada on nuclear hydrogen production with the thermochemical Cu-Cl cycle. The individual unit operations of the Cu-Cl cycle have been verified experimentally. Research on integration of a laboratory scale system to produce 3 kg of hydrogen per day is underway at the University of Ontario Institute of Technology in Oshawa, Ontario. Poland has developed advanced simulation capabilities for Solid Oxide Fuel/Electrolysis Cells for hydrogen peak energy storage as well as laboratory scale experiments focused on solid oxide and molten carbonate fuel cells. This paper presents a review of activities of members of the IAHE Nuclear Hydrogen Division in these six countries.

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“…However, most of these cycles are not feasible on a substantial scale as the temperature requirements are relatively higher compared to the copper-chlorine cycle. The copper-chlorine cycle requires temperatures up to 530 °C (Jianu et al, 2018). The copper-chlorine cycle also has the ability to use low-grade waste heat to improve energy efficiency and has low voltage requirements for the electrochemical step (Jianu et al, 2016).…”

Section: Theoretical Background and Literature Reviewmentioning

confidence: 99%

“…The reactions form a closed loop that has the net effect of splitting water into hydrogen and oxygen, while recycling all other chemicals (Diffenderfer, 2005). The ternary steps of this system involve mass transfer in the form of dissolution (Jianu et al, 2013;Jianu et al, 2018;Jianu et al, 2016). The dissolution of cuprous chloride in hydrochloric acid is a ternary step that occurs between the thermolysis and electrolysis steps in the overall cycle.…”

Section: Theoretical Background and Literature Reviewmentioning

confidence: 99%

Investigation of Dissolution of Cuprous Chloride in Aqueous Hydrochloric Acid Solution with Application to Hydrogen Production Technologies

Shah

Jianu

Rosen

2019

European Journal of Sustainable Development Research

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Fossil-fuel-based methods of production, transformation and use of energy are causing environmental concerns such as ozone depletion, acid rain and climate change while depleting the earth of its resources. Sustainable alternatives for energy transformation are being sought and a hydrogen economy is a potential avenue. The thermochemical copper-chlorine (Cu-Cl) cycle for water splitting into its constituents is a promising option to produce high quantities of hydrogen. One of the steps involved in the process of hydrogen production from water using the thermochemical Cu-Cl cycle is the dissolution of cuprous chloride particles in hydrochloric acid. The purpose of this study is to propose an experimental design to examine the dissolution of cuprous chloride in an aqueous hydrochloric acid solution in order to observe the reaction time and kinetics. This data will be used to develop an empirical model that correlates quantity of cuprous chloride, concentration of hydrochloric acid, electrical conductivity, and dissolution time using analysis of variance (ANOVA). Extrapolating the data gathered from the empirical model to an industrial scale will enable dissolution time prediction based on concentration and temperature for complex multiphase reactions.

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Constituent solubility and dissolution in a CuCl-HCl-H2O ternary system

Cited by 8 publications

References 19 publications

Investigation of Heat Extraction Methods from Cuprous Chloride for Improving the Efficiency of the Thermochemical Copper-Chlorine Cycle

Investigation of Heat Extraction Methods from Cuprous Chloride for Improving the Efficiency of the Thermochemical Copper-Chlorine Cycle

Progress of the IAHE Nuclear Hydrogen Division on international hydrogen production programs

Investigation of Dissolution of Cuprous Chloride in Aqueous Hydrochloric Acid Solution with Application to Hydrogen Production Technologies

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