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)
Reaction Engineering, Kinetics and Catalysts,
Methane oxy-steam reforming over a highly efficient Ni/Al2O3 nanocatalyst prepared by microwave-assisted impregnation method

S. M. S. Hosseini; H. Hashemipour rafsanjani; A.R. Talebizadeh

Volume 14, Issue 4 , December 2017, , Pages 3-16

Abstract
  An alumina-supported nickel catalyst was prepared by impregnation of Ni2+ solution onto mesoporous alumina under microwave irradiation (denoted as M-Ni/Al2O3). For comparison, a catalyst with the same nickel content was prepared by conventional impregnation method (denoted as UM-Ni/Al2O3). Both M-Ni/Al2O3 ...  Read More

Separation Technology,
Extraction of pectin from sour orange and its application as the adsorbent for removal of nickel from aqueous solution: Kinetic and equilibrium study

N. Kakoui; M. Nikzad; A. A. Ghoreyshi; M. mohammadi

Volume 15, Issue 2 , May 2018, , Pages 3-21

Abstract
  The present study investigates the potential applicability of the extracted pectin from sour orange pomace as adsorbent for Ni (II) removal from aqueous solution. Pectin extraction from the pomace was carried out using HCl and the highest pectin extraction yield of 26.75% was obtained. The Fourier transform ...  Read More

Modeling and Simulation
Prediction of polyvinyl alcohol (PVOH) properties synthesized at various conditions by artificial neural networks technique

M.R zeynali; M. Nazari; S. Karimi; S. M. Seyedmohaghegh; S. Soltani

Volume 14, Issue 2 , 2017, , Pages 3-16

Abstract
  In this research samples of PVOH were synthesized at various reaction conditions (temperature, time, and amount of catalyst). First at 25˚C and 45˚C and constant catalyst weight samples of PVOH were prepared with different degree of hydrolysis at various times. For investigation of the effects of temperature, ...  Read More

Reaction Engineering, Kinetics and Catalysts,
Enhancing Photocatalytic Activity of Nitrogen Doped TiO2 for Degradation of 4-Chlorophenol under Solar Light Irradiation

A. Payan; M. Fattahi; B. Roozbehani; S. Jorfi

Volume 15, Issue 3 , September 2018, , Pages 3-14

Abstract
  The nitrogen doped TiO2 as heterogeneous photocatalyst via sol-gel method were successfully synthesized. The physicochemical, morphological and textural characteristics of the obtained TiO2 samples were characterized by advanced analysis techniques. The photocatalytic activity of the samples were evaluated ...  Read More

Experimental and Computational Study on Hydrodynamic of a Downscaled Mini Vessel USP Dissolution Test Apparatus II

A. Mohammadi; J. Moghaddas

Volume 16, Issue 3 , September 2019, , Pages 3-22

Abstract
  Although not listed on the United States Pharmacopeia (USP), like standard USP 2, small volume USP 2 dissolution apparatus has gained a great deal of attention, especially for cases where small amount of drug product is available for testing in research and design step or evaluations are to be made on ...  Read More

Effects of particle size distribution on flotation kinetics of bituminous coal

A. Bahrami; Y. Ghorbani; E. Gulcan; F. Kazemi; H. Kakaei; S. Farajzadeh

Volume 17, Issue 2 , June 2020, , Pages 3-13

https://doi.org/10.22034/ijche.2020.184831.1303

Abstract
  Particle size distribution is an important parameter in flotation process, which affects the floatability and therefore the flotation kinetics. This study aims to investigate the effects of particle size distribution on flotation kinetics of bituminous coal. For this purpose, a series of batch flotation ...  Read More

Modeling and Simulation
Mathematical Modeling and Parameters Optimization of the Degradation of Acrylonitrile in Biofilters

Hajar seyfi; Sirous shafiei; Reza Dehghanzadeh; Parya Amirabedi

Volume 18, Issue 3 , September 2021, , Pages 3-15

https://doi.org/10.22034/ijche.2022.306304.1409

Abstract
  The removal of Acrylonitrile (AN) from waste gas streams using biological methods, due to their better performance, has recently gained more attraction. The purpose of this research is modeling the AN removal by a bio-filter. The validation of the model is done by using the experimental data of a bench-scale ...  Read More

Separation Technology,
Flocculation Behavior of Ultrafine Quartz and Magnetite as the Main Mineral Components of Iron Ore Tailings

S. Ghasemi; A. Behnamfard; R. Arjmand

Volume 18, Issue 2 , May 2021, , Pages 3-18

https://doi.org/10.22034/ijche.2021.260225.1362

Abstract
  The thickening of the iron ore tailings allows process water to be partially recovered and recirculated, also it reduces the fresh water consumption, which results in lower operating costs and less environmental impacts. The settling characteristics of the mineral components of an iron ore tailing in ...  Read More

Thermodynamics,
Determining the Optimal Thermodynamic Conditions of Ternary Systems Containing (CO2, Solvent, 5-Fluorouracil) in the GAS Process

M. Rahmanzadeh Derisi; N. Esfandiari

Volume 19, Issue 1 , March 2022, , Pages 3-14

https://doi.org/10.22034/ijche.2022.338671.1431

Abstract
  One of the methods to reduce the particle size is the GAS method. In this method, the solute and antisolvent should be dissolved well in a solvent. But the solute is not dissolved in a solvent. The aim of studying this model is to determine the phase equilibrium and thermodynamic conditions of (CO2, ...  Read More

Modeling and Simulation
Screening of important factors affecting the process of ammonia synthesis by Plackett-Burman method and process optimization with RSMScreening the Important Factors Affecting the Process of Ammonia Synthesized by the Plackett-Burman Method and the Process Optimization with RSM

A. H. Oudi; A. Irankhah

Volume 19, Issue 2 , June 2022, , Pages 3-20

https://doi.org/10.22034/ijche.2022.342066.1433

Abstract
  The optimization of the ammonia synthesis plant to increase the production of ammonia is studied in this line of research. In this paper, the steady-state ammonia synthesis is simulated using the Aspen HysysV.11 software. By comparing the simulation results with the industrial information, a mean relative ...  Read More

Reaction Engineering, Kinetics and Catalysts,
Characterization and optimization of SAPO-34 catalysts synthesized by mixed templates in MTO reaction

Sh. Masoumi; J. Towfighi

Volume 12, Issue 4 , October 2015, , Pages 4-14

Abstract
  "> The effects of templating on the catalytic performance of SAPO-34 catalyst have been investigated in conversion of methanol to olefins. SAPO-34 catalysts were synthesized using a different combination of morphine, tetraethyl ammonium hydroxide (TEAOH) and triethylamine (TEA) as structure-directing ...  Read More

Transport Phenomena,
Synthesis of zeolite NaA nano-crystalls; effect of synthesis parameters on crystallinity and crystal size

S. M. Mirfendereski

Volume 16, Issue 1 , March 2019, , Pages 22-38

Abstract
  Abstract In this work hydrothermal synthesis of zeolite NaA crystals with a composition of Al2O3:aSiO2:bNa2O:cH2O was investigated. Effects of SiO2/Al2O3, Na2O/Al2O3 and H2O/Al2O3 ratios and crystallization temperature and time were studied on crystallinity and crystal size of zeolite NaA crystals. It ...  Read More

Separation Technology,
The Effects of Operational Parameters on the Efficiency of a Mixer-Settler Extractor
Volume 2, Issue 1 , January 2005, , Pages 10-23

Abstract
  The effects and influences of various operational parameters on the efficiency of mixer-settlers are thoroughly studied in this paper. One of the most important factors in designing a mixer-settler is to obtain an optimum operational extraction and overall efficiency. These two factors are dependent ...  Read More

Reaction Engineering, Kinetics and Catalysts,
Characterization of Copper-Manganese Oxide Catalysts and Their Precursors: Effect of Precipitate Aging upon the Structure and Morphology of Precursors and Catalysts
Volume 1, Issue 2 , July 2004, , Pages 11-18

Abstract
  Copper-manganese oxide catalysts are prepared with an atomic ratio of Cu/Mn=2/1 using a coprecipitation procedure under air atmosphere. The time of aging, i.e., the time that precipitate remains in contact with the precipitating medium, has been varied from 0 (for unaged precursor) to 300 minutes and ...  Read More

Modeling and Simulation
A Study on Liquid-liquid Mixing in a Stirred Tank with a 6-Blade Rushton Turbine
Volume 5, Issue 4 , October 2008, , Pages 12-22

Abstract
  The turbulent flow field generated in a baffled stirred tank was computed by large eddy simulation (LED) and the flow field was developed using the Sliding Mesh (SM) approach. In this CFD study, mixing times and power number have been determined for a vessel agitated by a 6-blade Rushton turbine. The ...  Read More

Separation Technology,
Dehydration of Natural Gas Using Synthesized Chabazite Zeolite Membranes

S. Shirazian; S. N. Ashrafizadeh

Volume 12, Issue 1 , January 2015, , Pages 13-21

Abstract
  ine"> Chabazite zeolite membranes were synthesized for their potential application in dehydration of natural gas. The membranes were prepared using secondary growth method on porous ·-alumina substrates. Hydrothermal treatment was applied for the synthesis of chabazite seeds. The membranes ...  Read More

Transport Phenomena,
Experimental and CFD Study of the Tube Configuration Effect on the Shell-Side Thermal Performance in a Shell and Helically Coiled Tube Heat Exchanger

R. Beigzadeh; A. Parvareh; M. Rahimi

Volume 12, Issue 2 , April 2015, , Pages 13-25

Abstract
  "> Despite numerous studies of shell and helically coiled tube heat exchangers, a few investigations on the heat transfer and flow characteristic consider the geometrical effects like coil pitch. Moreover, this scarcity is highlighted for the shell side of this type of heat exchangers. This study ...  Read More

Transport Phenomena,
An NLP Approach for Evolution of Heat Exchanger Networks Designed by Pinch Technology
Volume 5, Issue 1 , January 2008, , Pages 13-21

Abstract
  Common methods to design heat exchanger networks (HENs) by pinch technology usually need an evolutionary step to reduce the number of heat transfer units. This step is called loop breaking and is based on the removal of exchangers that impose minimum increase on utility consumption. Loops identification ...  Read More