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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: 2011 volume:12 issue:2

Article
CORRELATION FOR SOLUTION GAS -OIL RATIO OF IRAQI OILS AT PRESSURES BELOW THE BUBBLE POINT PRESSURE

Authors: Omar F. Hassan
Pages: 1-8
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Abstract

The solution gas-oil ratio is an important measurement in reservoir engineering calculations. The correlations are used when experimental PVT data from particular field are missing. Additional advantages of the correlations are saving of cost and time. This paper proposes a correlation to calculate the solution gas -oil ratio at pressures below bubble point pressure. It was obtained by multiple linear regression analysis of PVT data collected from many Iraqi fields. In this study, the solution gas-oil ratio was taken as a function of bubble point pressure, stock tank oil gravity, reservoir pressure, reservoir temperature and relative gas density. The construction of the new correlation is depending on thirty seven PVT reports that were collected from Iraqi fields. Statistical and graphical tools have been used to check the performance of the correlation. Correlation performance was also compared with previous published correlations. The values of solution gas - oil ratio that were calculated from the new correlation have high accuracy when they were compared with the original laboratory data. Also, the results of the new correlation show high precision when compared with Standing , Vasquez and Beggs, Glaso, Al-Marhoun, Petrosky and Farshad, Kartoatmodjo and Schmidt, Velarde, Blasingame and McCain and Mazandarani and Asghari correlations.

Keywords


Article
CRACKING ACTIVITY OF PREPARED Y-ZEOLITE CATALYST USING CUMENE ON FLUIDIZED BED REACTOR

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Abstract

The catalytic activity of faujasite type NaY catalysts prepared from local clay (kaolin) with different Si/Al ratio was studied using cumene cracking as a model for catalytic cracking process in the temperature range of 450-525° C, weight hourly space velocity (WHSV) of 5-20 h1, particle size ≤75μm and atmospheric pressure. The catalytic activity was investigated using experimental laboratory plant scale of fluidized bed reactor. It was found that the cumene conversion increases with increasing temperature and decreasing WHSV. At 525° C and WHSV 5 h-1, the conversion was 42.36 and 35.43 mol% for catalyst with 3.54 Si/Al ratio and Catalyst with 5.75 Si/Al ratio, respectively, while at 450° C and at the same WHSV, the conversion was decreased to 29.15 and 21.86 mol% respectively, and the catalyst of 5.75 Si/Al ratio gave the higher cumene activity than the catalyst with 3.54 Si/Al ratio.تم دراسة الفعالية الحفازية للعامل المساعد المحضر من الكاؤلين المحلي وبنسب مختلفة من السليكا الى الالومينا باستخدام الكيومين كموديل للتكسير الحفازي المائع باستحدام درجات حرارية بين 450-525 درجة سليزية وسرعة فراغية بين 5-20 سا- 1 وحجم جزيئات اصغر او يساوي 75مايكرومتر في وحدة تجريبية وباستخدام مفاعل ذو الطبقة المميعة. وجد ان نسبة التحول للكيومين وكذلك نسبة تكوين البنزين تزداد بارتفاع درجات الحرارة ونقصان السرعة الفراغية حيث كانت نسبة التحول عند درجة حرارة525o C وسرعة فراغية 5 سا-1 35.43% و 42.3% للعامل المساعد ذونسبة السليكا الى الالومينا 423.5 و 5.758 على التوالي عند درجة الحرارة 450o C وبنفس السرعة الفراغية لوحظ نسبة التحول قد انخفض الى 29.15 و 21.86% للعاملين على التوالي.


Article
A PARTICULAR SOLUTION OF THE TWO AND THREE DIMENSIONAL TRANSIENT DIFFUSION EQUATIONS

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Abstract

A particular solution of the two and three dimensional unsteady state thermal or mass diffusion equation is obtained by introducing a combination of variables of the form, η = (x+y) / √ct , and η = (x+y+z) / √ct, for two and three dimensional equations respectively. And the corresponding solutions are, θ t,x,y = θ0 erfc x+y√8ct and θ t,x,y,z =θ0 erfc ( x+y+z√12ct)

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