Degradable hydrate generating accelerant and preparation method thereof

The invention relates to the technical field of gas hydrate industrial production and intensified generation, particularly to a degradable hydrate generating accelerant and a preparation method thereof. The degradable hydrate generating accelerant is characterized in that the CO2 hydrate generating accelerant is obtained by compounding three materials of rhamnolipid, xylogen and sodium bicarbonate into a water solution according to proportion, wherein the concentrations of the rhamnolipid, xylogen and sodium bicarbonate are respectively 0.01-0.13%, 0.01-0.13% and 0.0125-0.03%. The degradable hydrate generating accelerant can be applied to hydrate generating acceleration, and can also be used for collecting greenhouse gas. Rhamnolipid and sodium lignin sulfonate are both environment-friendly agents, the surface tension on the gas-liquid interface can be obviously reduced, the resistance generated when the gas enters the liquid phase through the interface is reduced, foam generation is promoted, the gas-liquid contact area is enlarged, the hydrate generation induction time is greatly shortened, and the hydrate generation speed is increased. Compared with conventional accelerants, the degradable hydrate generating accelerant is less in dosage, pollution-free, economical and environment-friendly.