Clathrate hydrates (also simply known as hydrates) are solid crystalline structures that trap
small gas molecules (ie, methane, ethane, carbon dioxide, and propane) inside hydrogen
bonded water cages. This unique structure typically forms at high pressure and low
temperature (typically higher than the ice point temperature). There are three common
structures of gas hydrates: structure I (sI), structure II (sII), and structure H (sH). The main
difference among these structures is the size of the water cages. Thus, the gas molecules …