Kinetics of growth of gas hydrates in dilute solutions of nonelectrolyte inhibitors

New experimental data on hydrate formation of freon-12 and propane in dilut e aqueous solutions of lower aliphatic alcohols art: presented. The additio n of alcohol was shown to affect the morphology of crystals of the gas hydr ates and the character of their agglomeration at the stage of mass crystall ization. This causes a two-phase open-porous liquid-hydrate structure to de velop on the side walls of a reactor above the gas-liquid interface. The st ructure formed initiates capillary how of the solution and movement of the front of mass crystallization of the hydrates along the reactor walls. A ki netic model was proposed for the growth of gas hydrates in dilute solutions of nonelectrolytes. The model permits us to qualitatively explain the form ation of the two-phase solution-hydrate structure observed in the experimen t, as well as the experimental data available on an increase in the hydrate formation intensity at low inhibitor concentrations in solution. The model analysis was carried out, and relations determining the dependence of kine tic parameters of hydrate formation on an inhibitor content in solution wer e obtained.