The Relationship between Freezing Point Depression of Aqueous Inhibitor Solution and Depression of Gas-Hydrate Formation Temperature

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The Relationship between Freezing Point Depression of Aqueous Inhibitor Solution and Depression of Gas-Hydrate Formation Temperature

更新时间：2025-12-16

- The Relationship between Freezing Point Depression of Aqueous Inhibitor Solution and Depression of Gas-Hydrate Formation Temperature
- CIESC Journal Issue 4, (1982)
- 作者机构：
  
  西南石油学院开发系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 1982，
  
  Published：25 December 1982
- 稿件说明：
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贺承祖. The Relationship between Freezing Point Depression of Aqueous Inhibitor Solution and Depression of Gas-Hydrate Formation Temperature[J]. CIESC Journal, 1982, (4).
DOI：

贺承祖. The Relationship between Freezing Point Depression of Aqueous Inhibitor Solution and Depression of Gas-Hydrate Formation Temperature[J]. CIESC Journal, 1982, (4). DOI：

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.

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 are gas hydrate formation temperature and freezing point of water in the absence of inhibitors

respectively

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.

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