مشخصات پژوهش

عنوان	پیش بینی تعادل فازی و خواص P-V-T سیستم های هیدروکربنی با استفاده از معادله حالت PC-SAFT-D ساده شده
نوع پژوهش	پایان‌نامه
کلیدواژه‌ها	Modeling, Vapor-liquid equilibria, Simplified PC-SAFT-D eos, Binary interaction parameters
چکیده	Simplified hard chain dimer theory along with perturbed-chain statistical association fluid theory (PC-SAFT) that has been used by Nasrifar for binary systems of normal alkanes with high accuracy were expanded into binary systems like carbon dioxide-hydrocarbons and nitrogen-hydrocarbons. m, ? and ??k parameters were calculated for carbon dioxide, nitrogen, isobutane and isopentane. For describing phase equilibria in binary systems like carbon dioxide-hydrocarbons and nitrogen-hydrocarbons, we need binary interaction parameters (kij) in order to rectify dispersion interactions that this parameter were calculated by dividing equation of state on experimental data of vapor-liquid equilibria for these systems. Obtained results from developed model for binary systems like carbon dioxide-hydrocarbon were compared with SAFT equation of state and for binary systems like nitrogen-hydrocarbon with PC-SAFT equation of state. Results showed that model has better performance than these two equations of state. Finally, this model were used for predicting dew point temperature in a mixture of multi-component natural gas and also the resulted error of prediction of this model for these systems were fewer than PR and PPR78 equations of state.
پژوهشگران	علیرضا زارع زاده (دانشجو)، امیرعباس ایزدپناه (استاد راهنما)، شهریار عصفوری (استاد مشاور)