摘要
本文借助GDSRK状态方程详细分析了压缩系数Z随对比压力Pr、对比温度Tr的变化情况,总结出不同条件下解Z的不同取值方法,并通过计算机绘制了压缩系数Z值的分布图。该图对轻烃回收尤其是深冷装置的工艺计算有一一定的参考价值。同时笔者认为液相压缩系数Z可以大于临界压缩系数Zc。
With the aid of GDSRK state equation,this paper exhaustively analyses the change situation of compression coefficient with the variation of reduced pressure p_t and reduced temperature T_t,summa- rizes the method of differently taking values to solve for Z under different conditions,and draws up a distribution chart of the values of compression coefficient Z by using computer. The chart has a certain reference value for lighter hydrocarbons recovery,especially for the technological calculation of cryo- genic equipment. The author considers the liquid phase compression coefficient Z may be higher than the critical one.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1991年第6期75-81,共7页
Natural Gas Industry
关键词
轻烃回收
压缩系数
计算方法
compression coefficient
calculation method
GDSRK state equation
lighter hydrocarbon recovery
