Abstract: In this paper, the correlation between depression of gas hydrate formation temperature AT and freezing point depression of aqueous inhibitor solution △T has been established according to the principle of thermodynamics: where n is water molecular number in the gas hydrate, T0, T0 are gas hydrate formation temperature and freezing point of water in the absence of inhibitors, respectively, λ, λ are gas hydrate formation heat and ice fusion heat respectively. △T can be calculated from △T with this coreelation. The results obtained are close to experimental values. Pieroens mehtod can only be used for non-electrolyte inhibitors, whereas this method is independent of the types of inhibitors. Since △T is obtained more easily than △T, this method is useful practically.

摘要： 本文根据热力学推导,建立了气体水合物生成温度的下降△T与阻止剂水溶液冰点的下降△T′之间的关系式ΔT=nλ′/λ(T_0/T_0′)~2ΔT′式中n为气体水合物中水分子数目,T_O、T_O′分别为无阻止剂时气体水合物的生成温度和水的冰点,λ、λ′分别为气体水合物的生成热和冰的熔化热.按上式可由ΔT′计算ΔT.计算结果与实验值接近.Pieroen法适用于非电解阻止剂,本法则不受阻止剂种类的限制.考虑到ΔT′比ΔT易获得,故本法有其实际意义.