Vahid Taghikhani
Department of Chemical & Petroleum Engineering, Sharif University of Technology, Tehran, I.R. IRAN
[ 1 ] - Correlation of Viscosity of Aqueous Solutions of Alkanolamine Mixtures Based on the Eyring's Theory and Wong-Sandler Mixing Rule
A viscosity model, based on Eyring’s absolute rate theory combined with a cubic PR equation of state and Wong-Sandler mixing rule, has been proposed in order to correlate viscosities of aqueous solutions of alkanolamine mixtures at atmospheric pressure and different temperatures. In the proposed method, the energy and size parameters in studied Equation of State (EoS) have been obtained usi...
[ 2 ] - Correlation and Prediction of Solubility of CO2 in Amine Aqueous Solutions
The solubility of CO2 in the primary, secondary, tertiary and sterically hindered amine aqueous solutions at various conditions was studied. In the present work, the Modified Kent-Eisenberg (M-KE), the Extended Debye-Hückel (E-DH) and the Pitzer models were employed to study the solubility of CO2 in amine aqueous solutions. Two explicit equations are presented to evalu...
[ 3 ] - Experimental Study and Simulation of Different EOR Techniques in a Non-Fractured Carbonate Core from an Iranian Offshore Oil Reservoir
In this research the experimental and theoretical studies on different Enhanced Oil Recovery (EOR) techniques, i.e. Water Flooding (WF), Gas Injection (GI) and Water Alternating Gas process (WAG) were performed on specimens taken from an Iranian carbonate offshore reservoir at the reservoir condition. The experimental results for each specified techniques were compared with the correspondin...
[ 4 ] - Prediction of Hydrate Formation for the Systems Containing Single and Mixed Electrolyte Solutions
In this work the effect of electrolytes on hydrate formation was investigated. To do so, a new model was used in predicting the hydrate formation conditions in presence of both single and mixed electrolyte solutions. The new model is based on the van der Waals - Platteeuw hydrate equation of state. In order to evaluate the values for the activity of water in electrolyte solutions t...
[ 5 ] - Application of the Genetic Algorithm to Calculate the Interaction Parameters for Multiphase and Multicomponent Systems
A method based on the Genetic Algorithm (GA) was developed to study the phase behavior of multicomponent and multiphase systems. Upon application of the GA to the thermodynamic models which are commonly used to study the VLE, VLLE and LLE phase equilibria, the physically meaningful values for the Binary Interaction Parameters (BIP) of the models were obtained. Using the method proposed in t...
[ 6 ] - رفتار رئولوژیکی امولسیون‌های نفت خام یکی از میادین نفتی ایران
در این پژوهش، امولسیون‌های مختلفی با استفاده از نمونه نفت خام نوروز به‌عنوان فاز نفتی، آب یون زدوده شده به‌عنوان فاز آبی و سورفکتانت از نوع اسپان 40 به‌عنوان عامل امولسیون کننده تهیه شد و سپس پارامترهای مهم و تأثیرگذار بر خواص رئولوژیکی این امولسیون‌ها و نیز نمونه نفت خام بررسی شد. همچنین جهت بررسی کیفیت امولسیون‌ها، پایداری آن‌ها در یک دوره زمانی سه ماهه مورد مطالعه قرار گرفت. تابعیت گرانروی ن...
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