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Iraqi Journal of Chemical and Petroleum Engineering

المجلة العراقية للهندسة الكيمياوية وهندسة النفط

ISSN: 19974884/26180707
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: 2011 volume:12 issue:3

Article
Vapor-Liquid-Liquid Equilibrium (VLLE) Data for the Systems Ethyl acetate + Water, Toluene + Water and Toluene + Ethyl acetate + Water at 101.3 kPa. Using Modified Equilibrium Still

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Abstract

Isobaric Vapor-Liquid-Liquid equilibrium data for the binary systems ethyl acetate + water, toluene + water and the ternary system toluene + ethyl acetate + water were determined by a modified equilibrium still, the still consisted of a boiling and a condensation sections supplied with mixers that helped to correct the composition of the recycled condensed liquid and the boiling temperature readings in the condensation and boiling sections respectively. The VLLE data where predicted and correlated using the Peng-Robinson Equation of State in the vapor phase and one of the activity coefficient models Wilson, NRTL, UNIQUAC and the UNIFAC in the liquid phase and also were correlated using the Peng-Robinson Equation of State in both the vapor and liquid phases.

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Article
Experimental Studyon Carbon Steel Corrosionandits Inhibition Using Sodium BenzoateUnder Different Operating Conditions

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Abstract

Corrosion experiments were carried out to investigate the effect of several operating parameters on the corrosion rate and corrosion potential of carbon steel in turbulent flow conditions in the absence and presence of sodium benzoate inhibitor using electrochemical polarization technique. These parameters were rotational velocity (0 - 1.57 m/s), temperature (30oC – 50oC), and time. The effect of these parameters on the corrosion rate and inhibition efficiency were investigated and discussed. It was found that the corrosion rate represented by limiting current increases considerably with increasing velocity and temperature and that it decreased with time due to the formation of corrosion product layer. The corrosion potential shifted to more positive with increasing temperature and velocity while it shifted to more negative with time. Sodium benzoate gave good inhibition efficiency for the whole investigated range of temperature and velocity. Its efficiency was high on clean surfaces and decreased with time in stationary and flow conditions. No noticeable effect of temperature on the inhibition efficiency was noticed. تم اجراء عدة تجارب على عملية التآكل والتي من خلالها تم استنتاج تأثير بعض العوامل العملية المؤثرة على معدل التآكل وفولتية التآكل للكاربون الفولاذي في المجرى المضطرب بغياب او بوجود بنزوات الصوديوم كمانع تآكل وباستخدام تقنيات الكهروكيمياوية القطبية. وهذه العوامل هي السرعة الدورانية, درجة الحرارة, والزمن. وتم مناقشة تأثير هذه العوامل على معدل التآكل وكفاءة المانع . لقد وجد بأن معدل التآكل المتمثل بتيار التآكل المحدد يتناقص مع الزمن نتيجة لتكوين طبقة من نواتج التآكل ويزداد مع السرعة ودرجة الحرارة. إن فولتية التآكل تتجه نحو زيادة أكثر مع زيادة درجة الحرارة والسرعة بينما تتناقص بزيادة الزمن. بنزوات الصوديوم تعطي كفاءة جيدة وكفاءتها تكون عالية للسطوح النظيفة وتتناقص مع الزمن في الظروف الساكنة وظروف الجريان مع ملاحظة عدم وجود تأثير لدرجة الحرارة على كفاءة المانع في هذه الظروف.


Article
Aluminum Leachability Evaluation from Oven Dried Alum Sludge

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Abstract

Phosphorus and dye (direct black) removal for small – scale wastewater applications were investigated using oven dried alum sludge (ODS).The use of alum sludge not only provides a low cost technique but also reduces the hazard and the cost related to the disposal of large amount of alum sludge. Phosphorus and dye removal exceeds 90% for all operating conditions applied in the research. The residuals generated during the treatment of wastewater were further tested to study the possibility of aluminum leaching from oven dried alum sludge during the adsorption of phosphorus and dye. These tests observed a reduction in aluminum leaching indicating a lower risk imposed on land and surface water based on disposal options rather than on alum sludge disposal. The leaching of aluminum was observed to be mostly below 1 mg/l for a pH solution of 6 and 7 for both processes of phosphorus and dye removal. However, the pH of 5 seemed to have a concentration of more than 1mg/l of aluminum.

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