摘要
水在油中的溶解度很低,常见的负压闪蒸原油稳定过程及井场的油、水与伴生气分离过程,实际上均为三相闪蒸过程。本文采用比较简单、实用、准确的汽液平衡模型,针对N-R法迭代过程中初值敏感的问题,经研究、计算,找到了油-水物系VLLE计算的初值规律,程序能根据规律自动确定初值,使相应的迭代过程准确、迅速收敛。
Typical three-phase flash processes are oil stabilization process under vaccum flash and the separation of oil, water and accompanying-gas in well field, since the solubility of water in oil is very low. A simple, useful and accurate VLE model is used to find the rules g' overning the initial values of VLLE in oil-water system by calculating and investigating the sensitivity of initial values in N-R iteration method. The initial values can be obtained automatically from the programme compiled with the rules proposed ,so the iteration is carried out accurately and fastly.
出处
《化学工程》
CAS
CSCD
北大核心
1990年第6期12-18,共7页
Chemical Engineering(China)
