Simulation of Natrual Gas Pipeline Drying Using Dehumidified Air
Before product natural gas enters NG transmission line, its dew point under the highest possible transmission pressure has to be lower than the lowest atmosphere temperature during transmission. However, there is residual water at internal wall and low-lying part before start-up, which would damp NG and thus causes it fail to meet the demand of low dew point. Therefore, the water needs to be removed from the line before start-up by certain process. Drying by dry air is a complicated heat and mass transfer process. Based on the Mass Conservation, Phase Equilibrium and the Law of Fick, the models of water drying process and closing-down process are established. The equations in water drying process are solved numerically, while closing-down process analytically. Relevant PC program has been developed as well. Then these models are used in West to East Pipeline drying, which justifies their correctness. In the end, some suggestions to design and operation are presented.
天然气s输送 输气管道 Natrual模拟 除湿空气 干燥过程
Xiaolan Zhu Changjun Li Kexi Liao
Post Graduate School of SWPU Petroleum Engineering Falculty of SWPU
国内会议
2007年油气藏地质及开发工程国家重点实验室第四次国际学术会议
成都
英文
811-814
2007-10-20（万方平台首次上网日期，不代表论文的发表时间）