Volume 27, Issue 3

 

ارسال های اخیر

  • Control of a Fluidized Bed Polyethylene Reactor 

    Vahidi, Omid؛ Shahrokhi, Mohammad؛ Mirzaei, Ahmad (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    In present paper, dynamic behavior and control of a fluidized bed reactor for polyethylene production has been considered. A double active sites model for Ziegler-Natta catalysts is used for simulation of polymerization ...

  • Studies on Chemical Composition and Nutritive Evaluation of Wild Edible Mushrooms 

    Saiqa, Sadiq؛ Haq, Nawaz Bhatti؛ Muhammad, Asif Hanif؛ Muhammad, Asif Ali؛ Rehman, Ata-ur- (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    Agaricus bisporus and Agaricus bitorquis are among most favorite mushrooms of the world. Mineral contents, proximate composition and fatty acid profile of these mushrooms were determined for evaluation of their dietary ...

  • Experimental Investigation on Hydrodynamic and Thermal Performance of a Gas-Liquid Thermosyphon Heat Exchanger in a Pilot Plant 

    Zare Aliabadi, Hassan؛ Atashi, Hossein؛ Noie, Seyed Hossein؛ Khoshnoodi, Mohammad (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    Waste heat recovery is very important, because not only it reduces the expenditure of heat generation, but also it is of high priority in environmental consideration, such as reduction in greenhouse gases. One of the ...

  • Study and Kinetic Modeling of Direct Sulfation of Iranian Limestones by Sulfur Dioxide at High CO2 Partial Pressure 

    Askari, Sima؛ Halladj, Rouein؛ Nikazar, Manouchehr (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    The direct sulfation of three high purity Iranian limestones and one precipitated calcium carbonate from different sources, containing more than 97 % CaCO3, were studied in a specially designed fixed bed ...

  • Applying a Modified Two-Fluid Model to Numerical Simulation of Two-Phase Flow in the Membrane Chlor-Alkali Cells 

    Abbasi, Farshad؛ Rahimzadeh, Hasan (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    In this study, gas evolution in a vertical electrochemical cell is investigated numerically with a modified two-fluid model. The mathematical model involves solution of separate transport equation for the gas and liquid ...

  • Absorption of Lead Ions by Various Types of Steel Slag 

    Nilforoushan, Mohammad Reza؛ Otroj, Sasan (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    Steel slags are the by products of steel industries, which forms during reduction process of iron melting. The chemical composition of it changes depending to the melting procedure. Its mineralogical composition also ...

  • An Insight into Colloidal Gas Aphron Drainage Using Electrical Conductivity Measurement 

    Moshkelani, Maryam؛ Chalkesh Amiri, Mohammad (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    In the present  paper Electrical Conductivity (EC) of Colloidal Gas Aphron (CGA) suspensions was measured for anionic and cationic surfactants (Sodium Dodecyl Sulfate (SDS) and Tetradecyl Trimethyl Ammonium Bromide ...

  • Design of Instrumentation Sensor Networks for Non-Linear Dynamic Processes Using Extended Kalman Filter 

    Salahshoor, Karim؛ Bayat, Mohammad Reza؛ Mosallaei, Mohsen (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    This paper presents a methodology for design of instrumentation sensor networks in non-linear chemical plants. The method utilizes a robust extended Kalman filter approach to provide an efficient dynamic data reconciliation. ...

  • Surface Coating of Red Blood Cells with Monomethoxy poly(ethylene glycol) Activated with Two Different Reagents 

    Sarvi, Fatemeh؛ Hashemi Najafabadi, Sameereh؛ Vasheghani Farahani, Ebrahim؛ Shojaosadati, Seyed Abbas (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    Methoxy poly(ethylene glycol) (mPEG) with molecular mass of 5 kDa activated with succinimidyl carbonate and cyanuric chloride, separately was covalently attached to human red blood cells (RBCs). Inhibition of agglutination ...

  • Adaptive Input-Output Linearization Control of pH Processes 

    Nejati, Ali؛ Shahrokhi, Mohammad؛ Mehrabani, Arjomand (Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2008-09-01)
    pH control is a challenging problem due to its highly nonlinear nature. In this paper the performances of two different adaptive global linearizing controllers (GLC) are compared. Least squares technique has been used ...