Predict heat of vaporization of crudes and pure components - Revised II

Modeling of non-isothermal vapor-liquid equilibrium processes requires the availability of heat of vaporization data. An equation for calculation of h eat of vaporization at normal boiling point has been developed which is par ticularly suited for pure hydrocarbons and petroleum fractions. The equatio n is simple to use and provides an improvement over the existing equations for pure hydrocarbons in wide boiling range. The equation is equally valid for crude oils, thus enabling the estimation of heats of vaporization neede d for modeling of distillation units in oil refineries. (C) 2001 Elsevier S cience B.V. All rights reserved.