汽油馏分烃化合物组分的蒸气压计算

发布时间：2018-04-02 16:19

  本文选题：汽油馏分　切入点：烃类化合物　出处：《石油炼制与化工》2017年01期

【摘要】：应用立方型状态方程计算气液相平衡,求取汽油馏分中烃化合物组分在任意指定温度下的饱和蒸气压,为汽油馏分的气液相平衡计算提供支持。方程求解通过编程实现,输入参数包括化合物的临界温度、临界压力和偏心因子,输出为对应温度下化合物的蒸气压。利用该方法可以计算汽油馏分中所包含的400多种烃化合物的蒸气压,比较了在37.8℃下的蒸气压计算值和实测值,结果吻合较好,轻烃化合物蒸气压的平均相对误差低于1%,汽油全馏分范围内烃化合物蒸气压的平均相对误差低于4%。
[Abstract]:The equation of state is used to calculate the vapor-liquid equilibrium, and the saturated vapor pressure of the hydrocarbon compounds in gasoline fractions at any given temperature is obtained, which provides support for the gas-liquid equilibrium calculation of gasoline fractions.The input parameters include the critical temperature, critical pressure and eccentricity factor of the compound, and the output is the vapor pressure of the compound at the corresponding temperature.This method can be used to calculate the vapor pressures of more than 400 hydrocarbon compounds contained in gasoline fractions. The calculated and measured vapor pressures at 37.8 鈩，

本文编号：1701178