Characterization of wax using potential energy and nanocalculation
محل انتشار: مجله بین المللی ابعاد نانو، دوره: 3، شماره: 3
سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 126
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شناسه ملی سند علمی:
JR_IJND-3-3_011
تاریخ نمایه سازی: 24 تیر 1401
چکیده مقاله:
Most reservoir fluids contain heavy paraffinic compounds that may precipitate as a solid or solid like material called wax if the fluid is cooled down. Wax precipitation is a phenomenon of considerable importance in oil industry. An increase in aggregation results in enhanced oil viscosity. This however causes significant negative effects on production, transportation and processing of crude oil. So, structural characterization of wax is considered to be important topic. In this work, normal paraffin molecules C۲۰, C۲۱, C۲۳, C۲۴, C۲۵, C۲۷, and C۲۹ have been considered as representatives of wax molecule. Intermolecular forces have been calculated using quantum mechanics and statistical analysis. Second virial coefficients have been obtained for these molecules by applying intermolecular potential energy. Finally SRK and PR equation of states parameters have been achieved to have molecular consideration of wax structure.
کلیدواژه ها:
نویسندگان
L. Abedi
Nano Chemical Engineering Department, Shiraz University, Shiraz, Iran.
S. Sabbaghi
Nano Chemical Engineering Department, Shiraz University, Shiraz, Iran.
M. Aezami
Chemistry Department, Yasouj University, Yasouj, Iran.
S. Sh. Ayatollahi
Chemical Engineering Department, Shiraz University, Shiraz, Iran.