سال انتشار: ۱۳۸۶

محل انتشار: پنجمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۷

نویسنده(ها):

Abbas Khaksar Manshad – Department of Chemical Engineering, University of Tehran, Tehran, Iran
Siavash Ashoori – Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran
Mohsen Edalat – Department of Chemical Engineering, University of Tehran, Tehran, Iran

چکیده:

This paper introduces an extension of cubic equation of state (Peng-Robinson EOS) to describe asphaltene-toluene mixture vapor-liquid equilibria (VLE) and characterize the pure asphaltene and the critical properties of asphaltene are adjusted (table (4)). To extend the model to mixtures, a mixing rule P-R EOS is used. Our experimental data (table (1)) in this study were used to examine the proposed EOS measured from the
Iranian crude oil reservoir. We determined the critical properties of asphaltene for this EOS with using the two phase vapor-liquid equilibrium calculation. In second step, we will prepare the multisolid three phase Flash calculation (VLSE) with P-R EOS, for to determine the amount ofasphaltene precipitation in crude oil mixtures system (table (2)) and interaction parameter between asphaltene and crude oil component. The test results showed that the proposed procedure is adequate for predicting the asphaltene precipitation data measured.