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Iranian Journal of Chemistry and Chemical Engineering، جلد ۲۵، شماره ۳، صفحات ۴۱-۴۷
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عنوان انگلیسی Investigation of Reversibility of Asphaltene Precipitation and Deposition for an Iranian Crude Oil
چکیده انگلیسی مقاله In this work, the precipitation and re-dissolution of asphaltenes were studied for an Iranian relatively heavy crude oil. A series of experiments were designed and carried out to quantitatively examine the reversibility of asphaltenes precipitation upon the change in the solvent concentration along with the temperature. n-Heptane was used as the precipitant, and a temperature range of 30 to 70°C was applied to perform the temperature reversibility tests. Experiments were conducted in both porous and non-porous media. As a porous medium, a slim tube apparatus was used which is a one- dimensional model reservoir. Generally, the experiments showed that the precipitation is completely reversible for oil under study upon both composition and temperature changes.
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نویسندگان مقاله سیاوش عاشوری |
faculty of petroleum engineering, petroleum university of technology, ahwaz, i.r. iran

محمد جامی الاحمدی |
faculty of petroleum engineering, petroleum university of technology, ahwaz, i.r. iran

h müller steinhagen | müller steinhagen
institute of thermodynamics and thermal engineering, university of stuttgart, stuttgart, germany

کاوه احمدی |
school of engineering, university of kansas, lawrence, usa

نشانی اینترنتی http://www.ijcce.ac.ir/article_8048_42eeff49d35e2030d4e2bde25db6955f.pdf
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