Modelling Production of Renewable Energy from Water Splitting High Thermal Electrolysis Processes
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Submitted Feb 28, 2021
Published Apr 12, 2021
Published Apr 12, 2021
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Recently, fuel gas from water has become the center of attention because it is a renewable source of energy and eco-friendly. In this study, the hydrogen gas simulated was obtained from the high-temperature water splitting electrolysis model, because it is more efficient than the low-temperature water splitting electrolysis process. It also releases oxygen as a byproduct. The high-temperature electrolysis model is made up of three loops: primary high-temperature helium loop, secondary helium loop, and high-temperature electrolysis loop. Hydrogen gave a temperature of 27.20C, a pressure of 49.5 bars, and a molar flow of 84.02MMSCFD. The hydrogen gas from a high-temperature electrolysis model is simulated with a CO2 gas stream to produce methane and water, also releasing unreacted carbon dioxide and hydrogen. Key parameters such as molar entropy, molar enthalpy, heat flow, and cost flow were evaluated by Aspen HYSYS V8.8. The simulation model used for this work is the Sabatier Process Model. In this model, Continuous stirred tank, Converter, Equilibrium, Gibbs, Plug flow reactors were used to generate methane. The Converter reactor gave the highest yield of methane gas with a mole fraction of 0.2390. Key benchmarks, including temperature, heat flow, cost flow, cost factor were varied to see how they can affect methane gas and other products.
Keywords: Electrolysis, environment, fuel gas, hydrogen, renewable energy, simulation model, temperature
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How to Cite
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Ebuehi, O.N., Abhulimen, K. and Adebesin, D.O. 2021. Modelling Production of Renewable Energy from Water Splitting High Thermal Electrolysis Processes. European Journal of Engineering and Technology Research. 6, 3 (Apr. 2021), 79–86. DOI:https://doi.org/10.24018/ejeng.2021.6.3.2391.
