摘要
把石油窄馏分作为虚拟的正构烷烃处理,应用状态方程法推算其液体焓值.通过对大庆、胜利、辽河3种原油共44个馏分的考察,计算值与实验值的总体平均偏差分别为4.8%、5.5%和3.7%,结果优于API和Watson-Nelson估算法.这表明该算法对国产石油馏分基本可行,可用于工程计算.
Regarding narrow fractions of petroleum as pseudo-normal paraffins, their liquid enthalpies were calculated by the state equation method. Investigations on 44 fractions in total of Daqing, Shengli and IJaohe crudes showed that the overall aver-age deviations between calculations and experiments were 4.8%, 5.5% and 3.7% respectively. These results were superior to that of API and Watson-Nelson estimation methods. The pseudo-normal paraffins method is basically feasible for domestic pe-troleum fractions and can be applied in engineering calculations.
出处
《炼油设计》
1995年第3期36-38,42,共4页
Petroleum Refinery Engineering
