Table of content

Iraqi Journal of Chemical and Petroleum Engineering

المجلة العراقية للهندسة الكيمياوية وهندسة النفط

ISSN: 19974884
Publisher: Baghdad University
Faculty: Engineering
Language: Arabic and English

This journal is Open Access

About

The Iraqi Journal of Chemical and Petroleum Engineering is a quarterly peer-reviewed scientific journal that was established in 2000 by the College of Engineering of the University of Baghdad. The Iraqi Journal of Chemical and Petroleum Engineering receives citations in the category of Chemical and Petroleum Engineering and relevant subjects.

Aims
The Iraqi journal of chemical and petroleum engineering is Open Access journal dedicated to publishing peer-reviewed research articles with respect to the subjects in fields of chemical and petroleum Engineering. In particular, petrochemical, biochemical, water treatment, electrochemical, petroleum and natural gas production and technology, and environment are the major interest of the journal. The journal aims to provide a free platform for the researches all over the world to share diverse types of knowledge and discuss the recent developments in the subjects related to the journal interest.

Objective
Objective of the journal is to promote the researches in the engineering subjects covered by journal to dissemination their intellectual products to the global community free of restriction. That achieves by making all of published articles available free of cost for all researcher through adopting Open Access publication model.

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Contact info

Aljadreah, Baghdad
Iraq
P.O Box: 47024
Phone: +964-1-7781506
Email: ijcpe@coeng.uobaghdad.edu.iq
ijcpe@yahoo.com

Table of content: 2012 volume:13 issue:4

Article
Prediction of The Chemical Composition and Physical properties of Aged Asphalt Cement

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Abstract

In the present work a modification was made on three equations to represent the experiment data which results for Iraqi petroleum and natural asphalt. The equations have been developed for estimating the chemical composition and physical properties of asphalt cement at different temperature and aging time. The standard deviations of all equations were calculated. The modified correlation related to the aging time and temperature with penetration index and durability index of aged petroleum and natural asphalts were developed. The first equation represents the relationship between the durability index with aging time and temperature. The second equation represents the relationship between the penetration index with aging time and temperature. The third equation represents the relationship between the durability index with penetration index. The values of penetration index and durability index for all aged samples were compared with predicted values. These correlations give a percent of error in the range of 1.2 to 7.4%.


Article
Production of Biodiesel Fuel from Oleic Acid and Comparison of its Properties with Petroleum Diesel

Authors: Sarah R. Al-Karkhi --- Nada B. Nakkash
Pages: 13-25
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Abstract

Biodiesel define as the mono-alkyl esters of vegetable oil and animal fats is an alternative diesel fuel that is steadily gaining attention because the combustion of fossil fuels such as coal, oil and natural gas has been identify as a major cause of the increase in the concentration of carbon dioxide in the earth’s atmosphere and causing global warming. The present work concerns with estimating the physical properties experimentally such as kinematic viscosity, density, flash point and carbon residue of biodiesel that produced by the esterification reaction of methanol and oleic acid with homogeneous catalysts H2SO4 in a lab-scale packed reactive distillation column using the best operating conditions of methanol to oleic acid 8:1, catalyst amount 1.8 g sulfuric acid/g oleic acid, time 57 min and reaction temperature 130°C that obtained from studying different variables such as molar ratio of methanol to oleic acid 4:1, 6:1 and 8:1, amount of catalyst 0.6, 1.2 and 1.8 g sulfuric acid/g oleic acid, reaction time 36, 57 and 75 minutes, and reaction temperature 100oC, 120oC and 130oC. The physical properties of biodiesel from the present work compared with those of ASTM (American Standard for Testing Material) standard for biodiesel, previous work and petrol diesel, from the results the biodiesel obtained can be used as alternative to diesel.


Article
Estimation of the Rock Mechanical Properties Using Conventional Log Data in North Rumaila Field

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Abstract

Hydrocarbon production might cause changes in dynamic reservoir properties. Thus the consideration of the mechanical stability of a formation under different conditions of drilling or production is a very important issue, and basic mechanical properties of the formation should be determined. There is considerable evidence, gathered from laboratory measurements in the field of Rock Mechanics, showing a good correlation between intrinsic rock strength and the dynamic elastic constant determined from sonic-velocity and density measurements. The values of the mechanical properties determined from log data, such as the dynamic elastic constants derived from the measurement of the elastic wave velocities in the material, should be more accurate than that determined by direct strength tests with core samples. This can be attributed to the scale effect and sampling disturbances. The aim of this study was to present methods of determining measures of some mechanical properties, from available well log data (conventional sonic, density, and gamma ray) for a well in North Rumaila field. The mechanical properties include formation strength and Poisson’s ratio. For the formation strength, combined elastic modulus (Ec) and shear modulus (G) were determined. The Poisson’s ratio was determined by using three different techniques to permit the accuracy of their values. The elastic modulus, shear modulus, and Poisson’s ratio were then correlated with depth and effective stress. The results show that combined correlations are important source of the prediction of overpressure zones which represent a major problem encountered in drilling and production process.


Article
Hydrodynamic Pressure Gradient Correlation of Some Iraqi Oil Wells

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Abstract

Empirical equation has been presented to predict the optimum hydrodynamic pressure gradient with optimum mud flow rate (one equation) of five Iraqi oil wells to obtain the optimum carrying capacity of the drilling fluid ( optimum transport cuttings from the hole to the surface through the annulus). This equation is a function of mud flow rate, mud density and penetration rate without using any charts or graphs. The correlation coefficient accuracy is more than 0.9999.


Article
Removal of Nickel Ions Using A Biosorbent Bed (Laminaria saccharina) Algae

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Abstract

The present study aims to remove nickel ions from solution of the simulated wastewater using (Laminaria saccharina) algae as a biosorbent material. Effects of experimental parameters such as temperature at (20 - 40) C⁰, pH at (3 - 7) at time (10 - 120) min on the removal efficiency were studied. Box-Wilson method was adopted to obtain a relationship between the above three experimental parameters and removal percentage of the nickel ions. The experimental data were fitted to second order polynomial model, and the optimum conditions for the removal process of nickel ions were obtained. The highest removal percentage of nickel ions obtained was 98.8 %, at best operating conditions (Temperature 35 C⁰, pH 5 and Time 10 min).

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