二氧化碳气田气常温闪蒸的实验测定和模拟计算  

Experimental Determination and Simulation of Flash Evaporation for Carbon Dioxide-Reservoir Gas at Normal Temperatures

作　　者：董军航[1] 徐南平[1] 王延儒[1] 时钧[1] 

机构地区：[1]南京化工学院

出　　处：《高校化学工程学报》1993年第4期304-308,共5页Journal of Chemical Engineering of Chinese Universities

基　　金：江苏省科委科学基金;国家自然科学基金青年基金

摘　　要：在含N_2、CH_4、CO_2体系常温汽液平衡(VLE)文献数据的基础上,用扩展的PR方程(MPR)建立了该体系VLE计算模型,计算精度达到压力平均相对偏差0.76％、汽相组成平均绝对偏差0.0018(摩尔分率);用静态法高压VLE测定装置对CO_2气田气在292至299 K温度下作了闪蒸实验测定。并用MPR方程进行模拟计算,计算结果与实验值符合良好。According to the vapor liquid equilibrium (VLE) data at normal temperatures for systems containing N_2、CH_4 and CO_2, a modified Peng-Robinson equation of state was proposed to correlate and predict the VLE for these systems, the average percentage deviation of pressure is 0.76%, and the average absolute deviation of vapor compositions is 0.0018 (mole fraction). Experimental determination of flash evaporation for the CO_2-reservoir gas was made in the temperature range from 292 to 299 K by a static apparatus, and the flash evaporation was also simulated by the MPR model. The results of the simulation compared well with the experimental data.

关 键 词：二氧化碳 气田气 闪蒸 VLE模型 

分 类 号：TE642[石油与天然气工程—油气加工工程]