Characteristics Researches of Natural Gas Hydrate Growth on the Pendant Water Droplet

Based on a set of high-pressure visual experiment device used for gas hydrate formation of suspended static water droplet, the influence factors such as system pressure, temperature, source of water on growth characteristics of gas hydrate are analyzed and discussed.The results showed that a higher gas pressure should lead to a higher driving force and a shorter nucleation time; a lower temperature should lead to a subcooling degree and a shorter nucleation time, which is of great benefit to the hydrate formation.Compared with pure water and distilled water, the melted distilled water are the best water source because it has a shorter nucleation time.Based on water spray formation of gas hydrate, the experiments can help to realize the hydrate formation mechanism from macroscopical field to the microscopical field.