Table of Content :




Abstract In this study, process asymmetric hollow fiber poly sulfone(PSf) membranes using ethanol (0and 2 wt%) as non-solvent additive in the polymer dope via phase inversion method were fabricated. Aqueous solution of 1-methyl-2-pyrrolidine (NMP, >99.5%) was applied as a bore fluid and water was used as the external coagulant. The […]

Experimental Study on Chemical Carbon Dioxide Absorption Using Porous Polysulfone ...



Abstract:   In this paper, we perform dynamic imbibition simulations on a large scale heterogeneous fractured block. The purpose is to seek optimum conditions under which maximum oil can be recovered in large-scale extremely-heterogeneous reservoirs. In this paper, we only consider horizontal wells. However, we simulate both continuous and slug injection […]

Investigation of Heterogeneous Fractured Blocks



Abstract Asmari formation is one of most important reservoirs in southwest of Iran. Production from this reservoir is mostly due to presence of fracture systems especially in Marun oilfield, hence characterization of fracture zones in reservoir facilitate the specification of perforation zones, analyzing the performance of local faults and fracture […]

Characterization of Fractures of Asmari Formation by Using Image Logs, ...



Abstract:   Drilling process is the most important part of exploitation of hydrocarbon reservoirs and accomplishment of drilling a well is determined by proper choice of the drilling fluid. The drilling fluid is related either directly or indirectly to almost every drilling problem. Improvement of drilling fluid properties therefore would have […]

Effect of a Naturally Derived Deflocculant (Black Myrobalan) on Rheological ...



Abstract: Identification and description of faults in an oilfield will help to prevent problems such as casing collapse, wellbore instability, and hydrocarbon leakage. One way to study the performance of faults is using formation micro imager logs. This type of log does this by fully imaging the wellbore wall. In […]

Study of Faults in Asmari Formation by FMI Image Log, ...



Abstract: Separation and reattachment of air flow through a sudden expansion in an annular passage with uniform heat after step are considered in this paper. The annular passage with step is applied in the design of many heat related applications where heat transfer is concerned. In this work, numerical simulation […]

Numerical Investigation of Turbulence Models for Separation Fluid Flow in ...



Abstract By utilizing spectrophotometry, the present study analyzes the effects of bismuth ion on the reaction of pyrogallol red, hydrogen peroxide and sulfuric acid. In this method, based on the previous experimental samples, the pre-defined concentrations of materials are used. These materials included bismuth 100 ppm, sulfuric acid 1 M, […]

The Analysis of Bismuth Effects on Reaction of Pyrogallol Red, ...



Abstract: Air separation unit (ASU) has become a process integral to many other processes mainly because of the significance of its constituents in many industrial applications. Eminent among them are nitrogen, oxygen and argon. New combination air separation processes for oxygen production are developed that use an uncommon adsorption unit, […]

Combination Mutual Pressure Swing Adsorption and Cryogenic Process to Optimize ...



Abstract: In this paper, the experimental investigation of cascade solar still and the cascade solar still connected to photovoltaic thermal collector is carried out. First, cascade solar still is constructed. Its tile angle is adjusted in 30 degree tangential situation on the ground. All experiments are done in the climate […]

Experimental Investigation of a Cascade Solar Still Connected to a ...



Abstract: The Stirling engine is an external combustion engine that works with any heat source. Surrounded by heating with gas pressure to the piston displacement and cooling gas, the piston reaches the initial point. This paper explores the Laminar flow modeling for analysis and the results of its Laminar flow […]

Laminar Flow Modelling and Analysis of Helium Fluid into the ...



Abstract: In this study, the asphaltene deposition was modeled during natural depletion process. The Langmuir and Toth adsorption models were used to investigate the monolayer and multilayer asphaltene adsorption phenomena onto core surfaces, respectively. A computer program was written to solve the equations with numerical method and the genetic algorithm […]

Modeling Study of Asphaltene Adsorption and Deposition During Natural Depletion ...





Abstract: In this study, several novel derivatives of bis-4-((5-(substituted phenyl)-4H-1,2,4-triazole-3-yl)amino)phenol were prepared using N-((4-hydroxy phenol)carbamothioyl)benzamide and hydrazine hydrate in CH2Cl2 as solvent and under reflux condition. Structure of all compounds were characterized by FT-IR, 1HNMR, 13CNMR. Keywords: Triazole, Thiourea, Hydrazine Hydrate, Dichloromethane

Synthesis of Novel Bis-triazoles by Thiourea Derivatives



Abstract: In this study, bentonite was modified with acidic ionic liquid and ionic liquid-bentonite hybrid characterized with XRD, BET and TGA analyses. The esterification of acetic acid with ethanol was studied over this hybrid and the effect of reaction temperature, type and amount of catalyst, molar ratio and reaction time […]

Synthesis and Chararcterization of Ionic Liquid-Bentonite Hybrid As Catalyst for ...



Abstract: A quick and solvent-free approach involving the exposure of neat reactants to microwave irradiation in conjunction with the use of clinoptilolite 3PW12O40 and Fe2O3 nanoparticle catalysts is described. In this work, condensation of hydroxylamine hydrochloride, sodium acetate, acetoacetic or benzoyl acetic ethyl ester and appropriate aldehydes by employing catalysts […]

Synthesis of 5(4H)-Isoxazolone Under Microwave Irradiation Conditions and Nano Fe2O3 ...



Abstract: Liquid-liquid equilibrium (LLE) data for (water + formic acid + 1-octanol) system were determined at atmospheric pressure over the temperature of 308.15K. A type-1 LLE phase diagram was obtained for this ternary system. The LLE data were correlated using the NRTL and the UNIQUAC models, and the binary interaction […]

Liquid-Liquid Equilibrium Data for Mixtures of (Water + Formic Acid ...



Abstract:   In this paper, firstly the effect of nano materials on surfactant adsorption and then, the effect of surfactant injection associate with nano particles on the enhanced oil recovery is studied. For this, several series of laboratory tests under the temperature and pressure of 50°F and 2500 Psia is performed. […]

Experimental Study of Oil Recovery with SDS



Abstract: Plastics have become a vital ingredient in the world. Due to their non-biodegradability and low life time, their huge wastes made environmental problems in the world. Chemical recycling of them plastics could be a promising method to overcome this problem. Waste plastics can be converted to feed-stocks or valuable […]

Kinetics of Catalytic Conversion of Polypropylene, High and Low Density ...



Abstract Due to the ever-increasing cost of energy and more stringent pollution standards for atmospheric emissions, it is desirable to improve absorption processes for the removal of carbon dioxide from flue gas. The research needs have been reviewed for CO2 capture from flue gas by aqueous absorption/stripping. A close-looped absorption/stripping […]

CO2 Capturing from Industrial Flue Gases



Abstract:  Glycerol is a by-product of biodiesel industry which can still be further processed into more value-added products. An example of glycerol utilization is esterification of glycerol and oleic acid with the addition of methyl ester sulfonic acid (MESA) catalyst to produce glycerol ester. The purpose of this study was […]

Preliminary Study on the Effects of Palm Methyl Ester Sulfonic ...