Utilizing Theoretical and Experimental Gaseous CO₂ Filling Behavior in Gas Hydrate Formation Parameters

Mohammed G.H. Haidar, Department of Mechanical Engineering, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia AND Center of Excellence in Desalination Technology, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia
Iqbal Ahmed Moujdin, Department of Mechanical Engineering, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia AND Center of Excellence in Desalination Technology, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia Follow

Abstract

Gas hydrates are increasingly becoming a viable method due to their potential efficiency and minimal energy demands. The capacity to manipulate and regulate the development of these hydrates is essential for enhancing their application in practical contexts. The study employed a VINCI autoclave apparatus to experimentally investigate the CO₂ filling rate necessary to attain hydration pressure with minimal temperature increase. MATLAB is used to derive theoretical gas filling equations that control the filling behavior and compare them with the results of our tests. A clear proportional link exists between filling flow rates and temperature increment within the reactor. The simulation effectively identifies values for temperature and pressure in the reactor that are extremely similar to the final measurements, particularly at low flow rates during filling. The optimal CO₂ flow rates are subsequently employed to pressurize the reactor for measuring CO₂ uptake during the induction period of gas hydrate. The induction time for CO₂ hydrate was minimal across all experimental sets with new operation order, where reactor is pressurized then cooled to form hydrate with nucleation commencing in as little as 9 seconds in certain experiments, even prior to the completion of the filling process. The duration of the experiment varies between sets, but all persisted until no liquid water remained in the reactor. The absorption of CO₂ has reached 0.127 moles, resulting in a ratio of 1:43.7 moles of CO₂ to moles of pure water.

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Recommended Citation

Haidar, Mohammed G.H. and Moujdin, Iqbal Ahmed (2025) "Utilizing Theoretical and Experimental Gaseous CO₂ Filling Behavior in Gas Hydrate Formation Parameters," Journal of King Abdulaziz University: Engineering Sciences: Vol. 1: Iss. 1, Article 1.
DOI: https://doi.org/10.64064/1658-4260.1000