基于HYSYS的超声速天然气脱水脱烃工艺设计

为解决超声速天然气脱水脱烃工艺设计受限于其核心设备超声速分离器的动力学设计以及以往数值模拟的设计方法繁琐且对物性参数变化敏感度较低的问题，分析其工作原理，基于HYSYS软件提出一套超声速天然气脱水脱烃工艺设计方法，并将其结果与数值模拟结果进行对比。结果表明，该工艺设计方法简便且满足工程设计要求。指出设计马赫数、气液分流比和压损比为超声速分离器的3个关键设计参数，分析其对天然气脱水脱烃效果的影响得出：设计马赫数越大，天然气露点降越大；气液分流比越大，天然气露点降越大；压损比越大，天然气露点降越大。

Design of Supersonic Natural Gas Dehydration and Dehydrocarbon Process Based on HYSYS

In order to solve the problem that the process design of supersonic natural gas dehydration and dehydrocarbon is limited by the dynamic design of the supersonic separator, which is the core equipment of the process, and the previous design method of numerical simulation is tedious and less sensitive to the change of physical parameters, the working principle of the process is analyzed. Based on HYSYS software, a set of design method of supersonic natural gas dehydration and dehydrocarbon process is put forward. The design result is compared with that of the numerical simulation. The result shows that the design method is simple and meets the engineering design requirements. It is pointed out that the design Mach number, gas-liquid split ratio and pressure loss ratio are the three key design parameters of the supersonic separator, and their influence on the dehydration and dehydrocarbon effect of natural gas is analyzed. It is concluded that: the greater the design Mach number, the greater the dew point drop of natural gas; the greater the gas-liquid split ratio, the greater the dew point drop of natural gas; the greater the pressure loss ratio, the greater the dew point drop of natural gas.