Hydrate formation in a horizontal channel during the injection of water droplets and gaz hydrate
The paper presents the technological scheme and the theoretical model for the process of hydrate formation in the level channel during the injection of water droplets and the gas. According to experimental data, the formation of methane hydrate and carbon dioxide in the ice polydisperse powders of spherical particles at low temperatures occurs in two stages: nucleation and growth of hydrate spots on the surface of ice particles, and then the subsequent growth of the hydration shell, limiting the diffusion of the gas through the hydrate layer to the ice core. Hydrate and ice formation may occur in the pore space in the humid methane-saturated rocks on which proposed and physically justified model of formation and existence of gas hydrates in the rocks of the permafrost zone. We construct the corresponding flow diagram and described model of the reactor for the process of hydrate formation during the injection of water droplets. The optimum operating conditions and the minimum size of the reactor from the viewpoint of energy consumption, depending on the initial parameters of the reactor. The study was supported by grants of Russian Science Foundation (project №15-11-20022).