Volume 21 (2024)
Volume 20 (2023)
Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 13 (2016)
Volume 12 (2015)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 8 (2011)
Volume 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
Transport Phenomena,
Drying Apple Slices in a Rotating-Tray Convective Dryer: A Study on Dehydration Characteristics and Qualitative Attributes

Hamid Ghasemkhani; Farhad Khoshnam; Mohamad Reza Kamandar

Volume 18, Issue 3 , September 2021, , Pages 16-32

https://doi.org/10.22034/ijche.2022.312376.1412

Abstract
  To improve quality attributes of the final dried product and execute a better management of the required energy, optimal process and technology it is essential to dry agri-food materials. This work is aimed at studying the dehydration characteristics and qualitative traits (color, shrinkage, rehydration ...  Read More

Modeling and Simulation
A Model For The Residence Time Distribution and Holdup Measurement in a Two Impinging Streams Cyclone Reactor/Contactor in Solid-Liquid Systems
Volume 3, Issue 3 , July 2006, , Pages 17-28

Abstract
  In this paper a two impinging streams cyclone contacting system suitable for handling of solid-liquid systems has been studied. Certain pertinent parameters such as: solid holdup, mean residence time and Residence Time Distribution (RTD) of solid particles have been investigated. A stochastic model based ...  Read More

Thermodynamics,
On the Selection of Proper Thermodynamic Conditions for the Gas Antisolvent Process (GAS) at Nearcritical and Supercritical Conditions
Volume 3, Issue 4 , October 2006, , Pages 17-22

Abstract
  In this work the volume expansion for the binary systems of ethanol and toluene, as industrial organic solvents, in the presence of nearcritical and supercritical carbon dioxide, CO2, at a temperature range of 293 to 333 K has been meticulously measured. The effect of the temperature and pressure of ...  Read More

Separation Technology,
Waste water ammonia stripping intensification using microfluidic system

Mo. H. Almasvandi; M. Rahimi

Volume 14, Issue 4 , December 2017, , Pages 17-31

Abstract
  This paper reports the results of experimentally removing ammonia from synthetically prepared ammonia solution using a micro scale mixing loop air stripper. Effects of various operational parameters (such as: pH, air flow rate, wastewater flow rate and initial ammonia concentration) were evaluated. By ...  Read More

Modeling and Simulation
A Numerical Simulation Model of Solid Acid Fuel Cell Performance by CsH2PO4 Electrolyte

I. Omidi; M. Kalbasi

Volume 14, Issue 2 , 2017, , Pages 17-32

Abstract
  The performance of the solid acid fuel cell by CsH2PO4 electrolyte was analyzed using the present model of the electrochemical reaction and transport phenomena, which are fully coupled with the governing equations. Development of such a model requires creating the three-dimensional geometry and its mesh ...  Read More

Separation Technology,
Removal of Pb (II) From Wastewater Using Henna; Optimization of Operational Conditions

M. Shafiee; A. Akbari; B. Ghiassimehr

Volume 15, Issue 4 , November 2018, , Pages 17-26

Abstract
  At this work, removal of Pb (II) using Lawsonia inermis (Henna) was studied. In recent years, use of low price adsorbent is taken into consideration. Adsorption experiments were performed in batch system at ambient temperature (25℃). The influence of some parameters such as time, initial metal concentration, ...  Read More

Biomedical and Biotechnology,
Assessment of effective factors on bacterial oxidation of ferrous iron by focusing on sweetening natural gas

A. Zabihollahpoor; P. Hejazi

Volume 15, Issue 1 , February 2018, , Pages 18-34

Abstract
  In this study, the effects of some factors on bacterial growth and ferrous oxidation rates were investigated by Acidithiobacillus ferrooxidan in 250 ml shake flasks. One factor at a time (OFAT) design approach was used for preliminary evaluation of various factors affecting the process, such as pH, initial ...  Read More

Separation Technology,
Optimization of Candida rugosa lipase immobilization parameters on magnetic silica aerogel using adsorption method

Jafarsadegh Moghaddas; Leila Amirkhani; Hoda Jafarizadeh- Malmiri

Volume 13, Issue 3 , July 2016, , Pages 19-31

Abstract
  Magnetic silica aerogel in hydrophobic and hydrophilic forms were used as support to immobilize Candida rugosa lipase by adsorption method. Response surface methodology (RSM) was employed to study the effects of the three most important immobilization parameters, namely enzyme/support ratio (0.3-0.5, ...  Read More

Separation Technology,
Improvement of gas separation properties of polyurethane membrane using plasma grafting

P. Azadi; Sh. Hassanajili

Volume 14, Issue 3 , August 2017, , Pages 19-30

Abstract
  In recent years, plasma treatments have given good results since they offer high technological efficiency with low waste generation. One of the most important characteristics of plasma methods is their action only on a thin surface layer, whereas the bulk of sample remains unchanged and the modified ...  Read More

Reaction Engineering, Kinetics and Catalysts,
The Effect of the Method of Adding Impregnation Solutions on the Properties and Performance of the Pd-Ag/Al2O3 Catalyst in the Tail-End Acetylene Selective Hydrogenation.

M. Takht Ravanchi; S. Sahebdelfar; M. Rahimi Fard; H. Moosavi

Volume 18, Issue 2 , May 2021, , Pages 19-30

https://doi.org/10.22034/ijche.2021.269052.1382

Abstract
  The impregnation of the alumina support with the PdCl2 solution was investigated in batch and semi-batch operation modes using a recycle packed-bed reactor. The UV-visible analysis was used to evaluate the kinetics of the adsorption of Pd on the alumina support. The adsorption data related to transient ...  Read More

Polymer Engineering and Technology,
Optimization of Synthesis of Expandable Polystyrene by Multi-Stage Initiator Dosing

F. derakhshanfard; A. vaziri; N. Fazeli; A. Heydarinasab

Volume 13, Issue 1 , January 2016, , Pages 20-31

Abstract
  Suspension polymerization process is commonly used to produce expandable polystyrene. In the conventional method for producing this polymer, two different initiators are added to the process at two different temperature levels. In the industrial scale, this process is time consuming and difficult to ...  Read More

Separation Technology,
Fabrication and Characterization of Polysulfone-Graphene Oxide Mixed Matrix Membranes for the Natural Gas Treatment

R. Bakhshi; M. Moraveji; A. Parvareh

Volume 19, Issue 2 , June 2022, , Pages 21-37

https://doi.org/10.22034/ijche.2022.344393.1442

Abstract
  The polysulfone mixed matrix membranes (MMM) with different concentrations of graphene oxide (0, 0.25, 0.5 wt % of the polymer) are fabricated by a phase separation method. The cross-sectional structures and their upper surface were assessed by the (SEM) surface roughness of the membranes assessed by ...  Read More

Reaction Engineering, Kinetics and Catalysts,
Ultrasound-Assisted Biodiesel Production in microreactors

M. Basiri; M. Rahimi; H. Babaei Mohammadi

Volume 13, Issue 2 , April 2016, , Pages 22-32

Abstract
  The ultrasound-assisted (UA) soybean oil methanolysis using KOH as a catalyst was studied at different reaction conditions in a microreactor. Box–Behnken experimental design, with three variables, was performed and the effects of three reaction variables i.e. reaction temperature, catalyst concentration ...  Read More

Modeling and Simulation
CFD modeling for selective formation of propylene from methanol over synthesized Mn-substituted MFI metallosilicate catalyst

N. Hadi; A. Niaei; r. alizadeh

Volume 15, Issue 2 , May 2018, , Pages 22-37

Abstract
  The high silica Mn-substituted MFI metallosilicate catalyst with Si/Al molar ratio of 220 and Si/Mn molar ratio of 50 was successfully synthesized by hydrothermal method. The catalyst sample was appropriately characterized by XRD, FE-SEM, EDX and BET techniques. The Mn-substituted MFI metallosilicate ...  Read More

Petroleum and Reservoir Engineering
Solid Phase Equation of State Application for Wax Formation Prediction in Petroleum Mixtures
Volume 5, Issue 2 , April 2008, , Pages 23-33

Abstract
  Precipitation ofsolid paraffins is one ofthe most common problems in the oil industry, imposing high operating costs. There have been a great many efforts for the prediction of solid paraffins precipitation up to now. Most of them were based on activity coefficient models accounting to solid phase non-ideality ...  Read More

Reactor modeling and kinetic parameters estimation for diethylbenzene (DEB) dehydrogenation reactions

M.E zeynali; H. Abedini; H. R. Sadri

Volume 16, Issue 3 , September 2019, , Pages 23-36

Abstract
  Divinylbenzene (DVB) is produced by catalytic dehydrogenation of DEB at high temperature and atmospheric pressure. Ethylvinylbenzene (EVB) is produced as a useful chemical during dehydrogenation of DEB. Also some other liquid and gaseous by products is produced during dehydrogenation. A set-up has been ...  Read More

Petroleum and Reservoir Engineering
Optimization of Water Based Drilling Fluid Produced Using Modified Nigerian Bentonite and Natural Biopolymers: Reduced experiment and Response Surface Methodology

A. Arinkoola; T. Salawudeen; K. Salam; M. Jimoh; Z. Atitebi; G. Abidemi

Volume 16, Issue 1 , March 2019, , Pages 39-53

Abstract
  Research has shown that many Bentonite in Nigeria are unsuitable for oil well drilling in their natural states. Their modification and blends with some additives could increase the yield and boost their suitability. Many indigenous polymers have become very popular due to environmental friendliness and ...  Read More

Transport Phenomena,
Theoretical and Experimental Study of Falling- Cylinder Rheometer
Volume 1, Issue 2 , July 2004, , Pages 19-27

Abstract
  The present study attempted deriving and solving the falling- cylinder governing equations for power law model non-Newtonian fluids. Based on this theoretical study, a novel falling- cylinder rheometer (FCR) was designed and constructed to measure the Theological properties of non-Newtonian fluids. Different ...  Read More