Table of content

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: 2010 volume:11 issue:3

Article
CORROSION of BOILER TUBES in SOUTH BAGHDAD ELECTRIC STATION

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Abstract

The corrosion of low carbon steel boiler tubes in demi water had been investigated. The purpose of this investigation was to determine the change produced in corrosion behavior of the carbon steel as a result of the specific presence of chloride and copper ions in the water under different temperatures. For low carbon steel experiments, the temperature was taken in three levels (125, 175, and 215°C) under about 27 bar pressure and 1500 rpm in autoclave. Using weight loss technique, the corrosion rate ranges from (85 to 789 gmd) for low carbon steel boiler tubes.

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Article
TREATING THE USED AUTOMOBILES OILS USING SOLVENTS

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Abstract

Used automobile oils were subjected to filtration to remove solid material and dehydration to remove water, gasoline and light components by using vacuum distillation under moderate pressure, and then the dehydrated waste oil is subjected to extraction by using liquid solvents. Two solvents, namely n-butanol and n-hexane were used to extract base oil from automobile used oil, so that the expensive base oil can be reused again. The recovered base oil by using n-butanol solvent gives (88.67%) reduction in carbon residue, (75.93%) reduction in ash content, (93.73%) oil recovery, (95%) solvent recovery and (100.62) viscosity index, at (5:1) solvent to used oil ratio and (40 oC) extraction temperature, while using n-hexane solvent gives (60.25%) reduction in carbon residue, (76.54%) reduction in ash content, (89.06%) oil recovery, (94.78%) solvent recovery and (100.3) viscosity index, at (6:1) solvent to used oil ratio and (50 oC) extraction temperature.

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Article
USING ALUMINUM REFUSE AS A COAGULANT IN THE COAGULATION AND FLIOCCULATION PROCESSES

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Abstract

The present work aims to study the efficiency of using aluminum refuse, which is available locally (after dissolving it in sodium hydroxide), with different coagulants like alum [Al2 (SO4)3.18H2O], Ferric chloride FeCl3 and polyaluminum chloride (PACl) to improve the quality of water. The results showed that using this coagulant in the flocculation process gave high results in the removal of turbidity as well as improving the quality of water by precipitating a great deal of ions causing hardness. From the experimental results of the Jar test, the optimum alum dosages are (25, 50 and 70 ppm), ferric chloride dosages are (15, 40 and 60 ppm) and polyaluminum chloride dosages were (10, 35 and 55 ppm) for initial water turbidity (100, 500 and 1000 NTU) respectively. While, adding sodium aluminate with the coagulants (Alum, FeCl3 and PACl), the optimum dose of 50 ppm was enough for the reduction of turbidity and hardness of water. يهدف البحث الى دراسة كفاءة استخدام نفايات الالمنيوم, المتوفرة محلياً (بعد اذابتها في محلول هيدروكسيد الصوديوم), مع مخثرات مختلفة مثل الشب [Al2(SO4)3.18H2O], كلوريد الحديديك FeCl3 و بولي المنيوم كلوريد (PACl) لتحسين نوعية الماء. النتائج اوضحت بأن استعمال هذا المخثر في عملية التلبيد اعطى نتائج عالية الى ازالة العكورة بالاضافة الى تحسين نوعية الماء بترسيب الكثير من الايونات التي تسبب عسرة الماء. لقد وجد من النتائج العملية لفحص الجرة, ان الجرعة الامثل للشب هي (25, 50 و 70 جزء بالمليون), الجرعة الامثل لكلوريد الحديد هي (15, 40 و 60 جزء بالمليون) والجرعة الامثل لبولي المنيوم كلوريد هي (10, 35 و 55 جزء بالمليون) لعكورة الماء (100, 500 و1000 وحدة كدرة) على التوالي. بينما, عند اضافة الومينات الصوديوم مع المخثرات (الشب, كلوريد الحديد و بولي المنيوم كلوريد) كانت افضل جرعة 50 جزء بالمليون لتقليل العكورة وعسرة للماء.

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Article
REMOVAL of HEAVY METALS IONS from AQUEOUS SOLUTIONS USING BIOSORPTION onto BAMBOO

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Abstract

Feasibility of biosorbent of England bamboo plant origin was tested for removal of priority metal ions such as Cu and Zn from aqueous solutions in single metal state. Batch single metal state experiments were performed to determine the effect of dosage (0.5, 1 and 1.5 g), pH (3, 4, 4.5, 5 and 6), mixing speed (90, 111, 131, 156 and 170 rpm), temperature (20, 25, 30 and 35 °C) and metal ion concentration (10, 50, 70, 90 and 100 mg/L) on the ability of dried biomass to remove metal from solutions which were investigated. Dried powder of bamboo removed (for single metal state) about 74 % Cu and 69% Zn and maximum uptake of Cu and Zn was 7.39 mg/g and 6.96 mg/g respectively, from 100 mg/L of synthetic metal solution in 120 min. of contact time at pH 4.5 and 25°C with continuous stirring at 170 rpm. Experimental results have been analyzed using Langmuir and Freundlich isotherms. Both equilibrium sorption isotherms were found to represent well the measured sorption data, but Freundlich isotherm was better than Langmuir isotherm. The effect of time was studied and the rate of removal of Cu (II) and Zn (II) ions from aqueous solution by bamboo plant was found. The rates of sorption of copper and zinc were rapid initially within 5-15 minutes and reached a maximum in about 60 minutes.

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Article
PREDICTION OF FINITE CONCENTRATIONBEHAVIOR FROM INFINITEDILUTION EGUILIBRIUM DATA

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Abstract

Experimental activity coefficients at infinite dilution are particularly useful for calculating the parameters needed in an expression for the excess Gibbs energy. If reliable values of γ∞1 and γ∞2 are available, either from direct experiment or from a correlation, it is possible to predict the composition of the azeotrope and vapor-liquid equilibrium over the entire range of composition. These can be used to evaluate two adjustable constants in any desired expression for G E. In this study MOSCED model and SPACE model are two different methods were used to calculate γ∞1 and γ∞2 المختبري عند التخفيف اللانهائي مهم وضروري جدا" لحساب المعامل الضرورية لمحتوى الطاقة الفائض الحر لگبس . اذا كان لدينا قيم موثوقة لكل من سواء كانت هذه القيم محسوبة من التجارب او من العلاقات تؤدي الى امكانية استنتاج عند نقطة الـazeotrope الضغط والنسب لكل من السائل و البخار كذلك تمكننا من حساب كميات التوازن لكل من السائل و البخار عند ظروف التشغيل. هذا يفتح المجال لحساب . قد طبقت في هذا البحث لحساب ثوابت كل من (Wilson, NRTL, UNIQUAC). أختير موديل كل من MOSCED و SPACE لحساب كل من

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Article
POWER GENERATION FROM “PRO” PROCESS USING FLAT SHEET TFC–ULP KOCH MEMBRANES

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Abstract

The production of power using the process of pressure–retarded osmosis (PRO) has been studied both experimentally and theoretically for simulated sea water vs. river water and deionized water under two cases: the first is for simulated real conditions of sea water and river water and second under low brine solution concentration to examine the full profile of the power- pressure. The influence of concentration polarization (CP) on water flux has been examined as well.

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