A NEW MECHANISM FOR HYDRATE FORMATION AND   DEVELOPMENT OF THERMODYNAMIC MODEL

陈光进; 马庆兰; 郭天民

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A NEW MECHANISM FOR HYDRATE FORMATION AND DEVELOPMENT OF THERMODYNAMIC MODEL

更新时间：2025-12-16

- A NEW MECHANISM FOR HYDRATE FORMATION AND DEVELOPMENT OF THERMODYNAMIC MODEL
- CIESC Journal Issue 5, (2000)
- 作者机构：
  
  石油大学流体高压相态及物性研究实验室!北京102200,石油大学流体高压相态及物性研究实验室!北京102200,石油大学流体高压相态及物性研究实验室,北京,102200
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q013.1
- Online First：25 October 2000，
  
  Published：25 October 2000
- 稿件说明：
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陈光进, 马庆兰, 郭天民. A NEW MECHANISM FOR HYDRATE FORMATION AND DEVELOPMENT OF THERMODYNAMIC MODEL[J]. CIESC Journal, 2000, (5).
DOI：

陈光进, 马庆兰, 郭天民. A NEW MECHANISM FOR HYDRATE FORMATION AND DEVELOPMENT OF THERMODYNAMIC MODEL[J]. CIESC Journal, 2000, (5). DOI：

摘要

提出了一个双过程水合物成核动力学机理模型 :(1 )拟化学过程生成基础水合物 ;(2 )小分子气体在基础水合物中的拟Langmuir吸附形成化学组成不恒定的水合物 .以此机理模型为基础建立了水合物热力学模型 .大量检验结果表明

新模型在预测气体水合物 (特别是由很复杂的天然气、凝析气和原油生成的水合物 )生成条件方面优于传统的vanderWaals -Platteeuw(vdW -P)模型及其改进型

且计算方法更简单 .

Abstract

A double-process hydrate initiation mechanism is proposed for gas hydrate formation: ①?a quasi-chemical reaction process to form basic hydrate and ② an adsorption process of smaller gas molecules in linked cavities existing in basic hydrate

causing the entire hydrate nonstoichiometric. Based on this new mechanism

a thermodynamic model has been developed. Extensive test results indicate that the new model is superior to the traditional van der Waals-Platteeuw typed models and adequate for predicting the hydrate formation conditions even for complex fluid mixtures

such as natural gas

gas condensate and crude oil.

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