Table of content

Iraqi Journal of Chemical and Petroleum Engineering

المجلة العراقية للهندسة الكيمياوية وهندسة النفط

ISSN: 19974884/E26180707
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.

Loading...
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:4

Article
DETERMINATION OF THE OPTIMUM OPERATING CONDITIONS IN THE GRANULATION OF GAMMA ALUMINA CATALYST SUPPORT

Loading...
Loading...
Abstract

Granulation Technique for Gamma Alumina Catalyst Support was employed in inclined disk granulator (IDG), rotary drum granulator (RD) and extrusion – spheronization equipments .Product with wide size range can be produced with only few parameters like rpm of equipment, ratio of binder and angle of inclination. The investigation was conducted for determination the optimum operating conditions in the three above different granulation equipments. Results reveal that the optimum operating conditions to get maximum granulation occurred at ( speed: 31rpm , Inclination:420 , binder ratio:225,300% ) for the IDG,( speed: 68rpm , Inclination: 12.50 , binder ratio: 300% ) for the RD and ( speed:1200rpm , time of rotation: 1-2min )for the Caleva spheronizer used in the extrusion spheronization method. These results are compatible with similar works on granulation of different materials.


Article
THE USE of DIRECT SOLAR ENERGY in ABSORPTION REFREGERATION EMPLOYING NH3 – H2O SYSTEM

Loading...
Loading...
Abstract

This work was conducted to study the coefficient of performance for solar absorption refrigeration by using direct solar energy using aqueous ammonia 0.45 mass fraction (ammonia – water).The experiments were carried out in solar absorption system .The system consisted of solar collector generator (0.25 m × 0.25 m × 0.04m) and condenser cooled by a water bath followed by liquid receiver and evaporator. The results showed that the maximum generator temperature was (92° - 97°) during June 2009, and the minimum evaporator temperature was (5°C - 10°C) for aqua ammonia system.. It was, also, found that the coefficient of performance, cooling ratio and amount of cooling obtainable increased with increasing maximum generator temperature and pressure. While the minimum evaporator temperature and concentration decreased with increasing maximum generator temperature and pressure. The coefficient of performance was (0.1096 - 0.2396).


Article
POLYVINYL ALCOHOL/POLYVINYL CHLORIDE (PVA/PVC) HOLLOW FIBER COMPOSITE NANOFILTRATION MEMBRANES FOR WATER TREATMENT

Loading...
Loading...
Abstract

Two different polyvinyl alcohol/polyvinyl chloride (PVA/PVC) hollow fiber composite nanofiltration membranes were prepared after PVC hollow fiber membranes were coated using dip-coating method with PVA aqueous solution, which was composed of PVA, fatty alcohol polyoxyethylene ether (AEO9), and water [PVA/AEO9/water (4:0.5:95.5) wt%]. Effect of two different PVC hollow fiber immersion times in coating solution were studied. Cross-section, internal and external surfaces of the PVC hollow fibers and PVA/PVC composite nanofiltration membranes structures were characterized by scanning electron microscopy (SEM), pure water permeation flux and solutes rejection. It was found that, the coating layer thickness on the outer surface of the 19 wt% PVC hollow fiber was thin and about (6µm), while the coating solution penetrates through the outer edge of the PVC hollow fiber and it looks like sponge-like structure with increase of the dip-coating time from 20 to 30 sec. Besides, the pure water permeation flux decreases and solutes rejection increases with an increase of the coating time from 20 to 30 sec for the two PVA/PVC composite nanofiltration membranes.Molecular weight cut-off (MWCO) of the PVA/PVC composite nanofiltration membranes were in the range of NF (i.e. 200-3000 Mw).تم تحضير نوعين من اغشية الالياف المجوفة والنانوية المكونة من PVA/PVC بواسطة طريقة الاكساء بالتغطيس في محلول PVA المائي المكون من بولي فنيل الكحول PVA, الماء و(AEO9) Fatty Alcohol Polyoxyethylene Ether وبنسب وزنية مئوية(0.5, 95.5, 4) على التوالي. تم دراسة تاثير وقتين مختلفين لزمن اكساء اغشية الالياف المجوفة على التركيب الداخلي والخارجي لاغشية الياف PVA/PVC المركبة والنانوية باستخدام جهاز المجهر الالكتروني الماسح (SEM) وايضا على اداء الاغشية في فصل المذابات وانتاج الماء النقي. وجد ان سمك طبقة الاكساء للالياف المحضرة من19% PVC كان رقيقا وبسمك µm6بينما يدخل محلول الاكساء خلال السطح الخارجي ويسد التراكيب الاصبعية الشكل عندما يزداد زمن الاكساء من 20-30 ثانية. بالاضافة الى ذلك, تقل نفاذية الماء النقي ويزداد فصل المذابات بزيادة زمن الاكساء من 20-30 ثانية لكلا نوعي الالياف المجوفة النانوية. ان الوزن الجزيئي للمذابات المفصولة(MWCO) لاغشية اليافPVA/PVC المجوفة النانوية كان ضمن مدى اغشية الفصل النانوية (200- 3000Da ).


Article
FLUID CATALYTIC CRACKING OF PETROLEUM FRACTION (VACUUM GAS OIL) TO PRODUCE GASOLINE

Loading...
Loading...
Abstract

In this work, fluid catalytic cracking of vacuum gas oil to produce gasoline over prepared faujasite type Y zeolite was investigated using experimental laboratory plant scale of fluidized bed reactor. The catalytic activity of prepared faujasite type NaY, NaNH4Y and NaHY zeolites was investigated. The cracking process was carried out in the temperature range 440 to 500 oC, weight hourly space velocity (WHSV) range 10 to 25 h-1 ,and atmospheric pressure . The catalytic activities of the prepared faujasite type NaY , NaNH4Y and NaHY zeolites were determined in terms of vacuum gas oil (VGO) conversion, and gasoline yield . The conversion at 500oC and WHSV10 hr-1 by using faujasite type NaY, NaNH4Y and NaHY zeolite were 50.2%, 64.1% and 69.5wt% respectively. The gasoline yield using the same operating conditions were 24.8%, 30.5% and 36.8wt% respectively. Gas chromatographic analysis of produced gasoline shows that the paraffin, olefin, and aromatic content change considerably with the end point temperature of gasoline fraction. تم استخدام التكسير الحفازي المائع لزيت الغاز الذي حصل عليه من التقطير الفراغي لمتبقي التقطير الجوي في وحدة الزيوت في مصفى الدورة باستخدم العامل المساعد فايوجاسيت نوع Y زيولايت المحضر . درست الفعالية الحفازية للفيوجيسايت بصيغة الصوديوم NaY , و صيغة الامونيومNaNH4Y و صيغة الهيدروجين NaHY زيولايت باستخدام وحدة تجريبية بحدود درجات الحرارة بين 440 – 500 oC وسرعة فراغية بين 10 – 25 سا-1 . تم تعيين الفعالية الحفازية للفيوجيسايت بصيغة الصوديوم NaY , و صيغة الامونيومNaNH4Y و صيغة الهيدروجين NaHY زيولايت بصيغة تحويل المتفاعلات الى مختلف النواتج ونسبة الكازولين الناتج .لقد كانت نسبة تحويل المتفاعلات الى نواتج عند درجة حرارة 500 oC وسرعة فراغية 10 سا-1 50.2% و 64.1% و 69.5% على التوالي. وان انتاجية الكازولين لنفس الظروف التشغيلية كانت24.8% و 30.5% و 36.8% على التوالي . بينت تحليل الغازالكروماتوغرافي Gas Chromatography للكازولين المنتج بان نسبة البرافينات ,الاوليفينات والاروماتيات تتغير تبعا لتغير درجة حرارة نهاية التقطير لمقطع الكازولين .


Article
EXCESS VOLUMES OF HEAVY OIL-STOCKS MIXTURES + (KEROSENE OR XYLENE) AT 303 K

Authors: Haidar M. Al-Qamaje
Pages: 47-57
Loading...
Loading...
Abstract

Binary mixtures of three, heavy oil-stocks had been subjected to density measurements. The data had been acquired on the volumetric behavior of these systems. The heavy oil-stocks used were of good varity, namely 40 stock, 60 stock, and 150 stock. 40 stock is the lightest one with ˚API gravity 33.7 while 60 stock is middle type and 150 stock is heavy one, with ˚API gravity 27.7 and 23.8 respectively. Stocks with Kerosene or Xylene form non-ideal mixtures, for which excess volume can be positive or negative. Mixtures of heavy oil-stocks with paraffinic spike (kerosene) show negative excess volume. While, aromatic rings results a lower positive excess volume, as shown in xylene when blending with 40 stock and 60 stock but a negative excess volume when blending with 150 stock. The gravity of oil-stocks has an effect on excess volume when the oil-stocks spiked with Kerosene or Xylene. Those, 40 stock as typical light type resulted in minimum negative excess volume of -2.18, when it was spiked with the kerosene, while the spiked heavy oil-stock with kerosene gave a maximum excess volume of -11.2. The Redlich-Kister equation was used to fit the excess volume values, and the coefficients and estimate of the standard error values were presented.

Table of content: volume:11 issue:4