冷凝法油气回收流程模拟中的相平衡计算  

Phase equilibrium calculation of condensate oil and gas recovery process simulation

作　　者：郭兰兰[1,2] 孔祥强[2] 王默晗[2] 

机构地区：[1]山东大学能源与动力工程学院,山东济南250061 [2]山东科技大学机电学院,山东青岛266590

出　　处：《油气储运》2013年第1期91-94,共4页Oil & Gas Storage and Transportation

基　　金：山东科技大学春蕾计划资助项目"冷凝式油气回收系统的数值模拟研究";2010azz017

摘　　要：在冷凝法油气回收过程中,油气组分和含量不断变化,热物性如焓、熵、粘度、比热容等也相应发生改变。为了正确计算动态参数,给出了油气的相平衡计算模型。该模型由物料平衡条件方程组、热力学平衡条件方程组和状态方程结构体系3部分构成,并通过VC++语言编程求解。利用实际气体PR状态方程计算某油气成分在三级冷凝温度4℃、-50℃、110℃下的相平衡特性,与Aspen软件计算结果相比误差不大,可以作为后续流程模拟计算的基础。In the condensate oil and gas recovery process, components and contents of oil and gas change constantly and thermo-physical properties such as enthalpy, entropy, viscosity and specific heat also change accordingly. To correctly calculate these dynamic parameters, a phase equilibrium calculation model for oil and gas is given. This model consists of material equilibrium condition equation set, thermodynamic equilibrium condition equation set and state equation structure system and is resolved using VC＋＋ language programming. PR state equation of actual gas is used to calculate phase equilibrium feature of a oil and gas component at three condensing temperatures such as 4 ℃, -50 ℃ and -110 ℃. The feature is closed to calculation results of Aspen software, so it can be taken as the basis of follow-up process simulation calculation. （1 Table, 3 Figures, 5 References）

关 键 词：油气 冷凝回收 相平衡计算 PR方程 

分 类 号：TE991[石油与天然气工程—石油机械设备]