摘要
水的存在对天然气的集输和加工产生不利影响。为了保证天然气集输和加工的正常进行,准确预测天然气最大容许水含量,即与水合物平衡的气相水含量尤为重要。综述了近35年来天然气水合物汽-固平衡气相水含量的实验测定和理论计算的研究进展,比较分析了预测模型的适用范围和准确性。结果表明,水合物平衡气相水含量预测模型逐渐从单组分体系扩展到多组分体系,从中低压体系扩展到高压体系。vdW-P模型结合CPA状态方程适用范围最广。
The presence of water has a negative impact on natural gas transportation and treatment. It is particularly important to predict the maximum allowable water content in natural gas accurately,that is,the water content in gas phase that is equilibriumwith natural gas hydrate in order toensure normal gas transportation and treatment. Summarized is the research progress in experimental determination and theoretical calculation of the gas phase water content which is equilibrium with the gas hydrate in last 35 years and comparative analysis is conducted on prediction technique for the maximumallowable water content in natural gas.
出处
《天然气与石油》
2013年第1期36-40,5,共5页
Natural Gas and Oil
基金
中国石油天然气集团公司工程建设分公司工程资助项目(2012GJTC-04-02)
关键词
天然气
水合物
汽-固平衡
最大水含量
Natural gas
Hydrate
Vapor-Hydrate equilibrium
Maximumwater content
