Experimental Study on Formation and Decomposition of C₂H₂ Hydrate

Gas hydrates are crystalline, clathrate compounds, which have an extraordinary ability of gas storage. Hydrate formation, and its characteristics, properties, energy utilization, gas storage, model equipment and testing method have drawn much attention. At present, the most research focuses on the studies of methane hydrate, carbon dioxide hydrate and others, but a detailed research on C₂H₂ hydrate has not been reported yet. In the present work, behaviors of C₂H₂ hydrate formation and decomposition were investigated with a lab-designed high-pressure cell. C₂H₂ gas source was provided by a chemical reaction. Phase equilibrium of C₂H₂ hydrate is discussed in this paper. The initial data of C₂H₂ hydrate formation and decomposition were obtained. Our results may be helpful to a further study on the C₂H₂ hydrate and the C₂H₂ gas storage and transportation.