Prediction of Reid Vapor Pressure of Petroleum Fuels

Abstract

A new correlation is developed for predicting the Reid vapor pressure (RVP) of gasoline and naphtha based on a true vapor pressure (TVP) correlation. The input parameters for this correlation are the mid-boiling point, specific gravity, critical temperature, and critical pressure, where the critical properties may be estimated from the boiling point and specific gravity using available methods. The proposed correlation is evaluated with data collected on 50 gasoline samples from crude oils from around the world with API gravity ranges from 41 to 87, average boiling point ranges from 316 to 494 K and RVP of 0.007 to 1.15 bars (0.1-17 psia). The average error from the proposed correlation is about 0.06 bar (0.88 psia). Two other simple methods for prediction of RVP available in the literature have been evaluated with the same data bank and compared with the proposed method.

Modeling of true vapor pressure of petroleum products using ANFIS algorithm

“…There are several investigations by the researchers to estimate amount of RVP (Jenkins and White, 1969;Bird and Kimball, 1975;Baird, 1981;Bullin, 1992;Vazquez-Esparragoza et al, 1992;Riazi et al, 2005;Bahadori, 2014).…”

“…In addition, the other transportation fuels such as the kerosene and diesel are considered similar to gasoline in terms of volatility (Hatzioannidis et al, 1998;Riazi et al, 2005;Bahadori, 2014). In these situations, the Reid vapor pressure (RVP) is commonly applied as a volatility representation of liquid hydrocarbons.…”

Predicting the Enthalpy of Vaporization and Calculating the Entropy of Vaporization of 87 Octane Gasoline Using Vapor Pressure

“…It differs from the true vapor pressure (TVP) which is described as the pressure exerted by a vapor in equilibrium with its liquid phase at a specific temperature. Measuring the TVP is probably more conducive for determining the concentration of combustion contaminants emitted into the atmosphere since a maximum threshold has been imposed for the VP of gasoline in order to restrict air pollution [1]- [3].…”

“…These equations also serve to compute stand-alone thermodynamic information of gasoline blends. An excellent outline of numerous analytical expression used in this capacity was summarized by Riazi et al [3].…”