En
  • دکتری (1369)

    مهندسی شیمی

    دانشگاه لیدز، لیدز، انگلستان

  • کارشناسی‌ارشد (1364)

    مهندسی شیمی

    دانشگاه اتاوا، اوتاوا، کانادا

  • کارشناسی (1358)

    مهندسی شیمی

    دانشگاه تهران، تهران، ایران

  • هیدراتهای گازی
  • فرآیندهای جداسازی( جذب- غشایی)
  • حلالیت گازها در مایعات (شیرین سازی گازها)
  • انرژی-اگزرژی

    دکتر حسن پهلوانزاده متولد 1334 استاد دانشکده مهندسی شیمی دانشگاه تربیت مدرس دوران ابتدایی و دبیرستان را در شهرستان قزوین به پایان رسانده و در سال 1358 کارشناسی در رشته مهندسی شیمی از دانشکده فنی دانشگاه تهران اخذ نموده است. ایشان در سال 1364 مدرک کارشناسی ارشد را از دانشگاه اتاوا (کانادا) و دکتری را در سال 1369 از دانشگاه لیدز (انگلیس) در همان رشته مهندسی شیمی دریافت کرده است. در سال 1371 در این دانشگاه مشغول به کار گردید و در حال حاضر به عنوان استاد دانشکده مهندسی شیمی مشغول به خدمت میباشد. زمینه های پژوهشی مورد علاقه ایشان عبارتند از : هیدراتهای گازی - حلالیت گازها در مایعات (شیرین سازی گازها) - جذب فلزات سنگین - انرژی و اگزرژی.

    ارتباط

    رزومه

    Thermodynamic Investigation of the Effect of Electric Field on Solid–Liquid Equilibrium

    Sima Hejazi, Hassan Pahlavanzadeh, Janet AW Elliott
    Journal PapersThe Journal of Physical Chemistry B , 2021 January 26, {Pages }

    Abstract

    In this study, the thermal, mechanical, and chemical equilibrium conditions are derived for binary solid–liquid equilibrium under the effect of an electric field. As an example, the effect of an electric field on the water/glycerol solid–liquid phase diagram is computed over the complete mole fraction range. We show that the application of an electric field can affect the composition dependent freezing and precipitating processes, changing freezing and precipitating temperatures and changing the eutectic point temperature and mole fraction.

    Response to “Comment on ‘CFD Modeling of CO2 Absorption in Membrane Contactors Using Aqueous Solutions of Monoethanolamine-Ionic Liquids’”

    Hassan Pahlavanzadeh, Mohammad Darabi, Vahid Rajabi Ghaleh, Omid Bakhtiari
    Journal PapersIndustrial & Engineering Chemistry Research , Volume 60 , Issue 3, 2021 January 19, {Pages 1503-1504 }

    Abstract

    As noted by Deng in the Comment, Comsol software does not simply apply the boundary condition 1. Of course, this can be done by writing a function and coupling, but considering that the L/D ratio of the tubes is very high, it can be assumed that the concentration has reached a constant level in the end of tubes, which means that boundary condition 2 is acceptable. In this study, 1 we also used the Comsol outflow boundary condition, and boundary condition 1 is incorrectly given in this manuscript. This boundary condition is also true, of course, and we have seen it in previous research, 2, 3 but this condition has been used more in research done with MATLAB software.

    Fabrication and optimization of kaolin/stearic acid composite as a form-stable phase change material for application in the thermal energy storage systems

    M Jafaripour, SM Sadrameli, H Pahlavanzadeh, SAH Seyed Mousavi
    Journal PapersJournal of Energy Storage , Volume 33 , 2021 January 1, {Pages 102155 }

    Abstract

    The intended object of this research was to evaluate the influence of different parameters employed on the form-stable phase change materials (FSPCMs) characteristics, with emphasis on the loading percentage of a phase change material (PCM) into the supporting material layers. A melt impregnation process was established to fabricate the FSPCM composites. Stearic acid (SA), one of the fatty acids included in the vegetable oils, possessed various properties suitable as a renewable PCM and was used to be impregnated into kaolin as the supporting material that comes from the clay-based mineral group. Mesh size of kaolin, PCM mass fraction, impregnation time, and temperature were among the studied parameters that took part in the loading percent

    Experimental study and kinetic modeling on THF hydrate formation under a static electric field

    S Hejazi, H Pahlavanzadeh, M Manteghian
    Journal Papers , , {Pages }

    Abstract

    Experimental measurements and thermodynamic modeling of hydrate dissociation conditions in CO2+ THF+ NaCl+ water systems

    Hassan Pahlavanzadeh, Sepideh Nouri, Amir H Mohammadi, Mehrdad Manteghian
    Journal PapersThe Journal of Chemical Thermodynamics , Volume 141 , 2020 February 1, {Pages 105956 }

    Abstract

    Experimental and thermodynamic modeling results for hydrate dissociation conditions in carbon dioxide + THF + NaCl + water systems were reported. Four different aqueous solutions of THF and NaCl (0.05 mass fraction of NaCl, 0.05 mass fraction of THF: namely solution 1; 0.10 mass fraction of NaCl, 0.05 mass fraction of THF: namely solution 2; 0.05 mass fraction of NaCl, 0.20 mass fraction of THF: namely solution 3; 0.10 mass fraction of NaCl, 0.20 mass fraction of THF: solution 4) were studied in this work. An isochoric pressure – search method was used to perform the measurements. The equilibrium dissociation conditions are reported in the ranges of (0.92–3.89) MPa and (280.9–292.9 K). NaCl acts as an inhibitor in all of

    Thermodynamic modeling and experimental measurement of semi-clathrate hydrate phase equilibria for CH4 in the presence of cyclohexane (CH) and tetra-n-butyl ammonium bromide

    Hussein Hassan, Hassan Pahlavanzadeh
    Journal PapersJournal of Natural Gas Science and Engineering , Volume 75 , 2020 March 1, {Pages 103128 }

    Abstract

    In the current study, the effect of tetra-n-butyl ammonium bromide (TBAB) and cyclohexane mixture on CH4 semi-clathrate hydrate formation was studied. Semi-clathrate dissociation conditions for CH4?+?TBAB?+?cyclohexane?+?water were investigated at different concentrations of TBAB (0.05, 0.10, and 0.15) mass fraction in the presence of cyclohexane at the pressure and temperature ranges of 1–8?MPa and 275.1–295?K, respectively. In addition, a thermodynamic model was suggested to predict the phase equilibria of our system, which is divided into four phases, where the van der Waals–Platteeuw Solid Solution Theory has been used to predict the hydrate phase. For gas phase, The SRK equation of state was applied. For oil phase, the cyclohexan

    Experimental study and kinetic modeling of R410a hydrate formation in presence of SDS, tween 20, and graphene oxide nanosheets with application in cold storage

    Amir Mohammad Javidani, Saeid Abedi-Farizhendi, Abolfazl Mohammadi, Amir H Mohammadi, Hussein Hassan, Hassan Pahlavanzadeh
    Journal PapersJournal of Molecular Liquids , 2020 February 10, {Pages 112665 }

    Abstract

    Gas hydrates, or clathrate hydrates, can be used as a suitable cold/cool storage media, due to their large phase change enthalpy. In recent decades, cold production through gas hydrates as a novel and cost-effective method has motivated researchers. Refrigerants have the potential to be used in hydrate-based cold storage systems, because they can form hydrates at moderate pressures and temperatures. Hence, in this work, the kinetics of R410a (50 wt% difluoromethane + 50 wt% 1,1,1,2,2-pentafluoroethane) hydrate formation in the presence of different concentrations of SDS, tween 20, and graphene oxide (GO) was investigated. The experiments were carried out in a 300 cm3 reactor/cell at the initial pressure and temperature of 1 MPa

    Hydrate Phase Equilibria of Methane plus Mixed (TBAB plus THF) in the Presence and Absence of NaCl and/or MgCl2 Aqueous Solutions

    Hassan Pahlavanzadeh, Mohammad Pourranjbar, Ali Askari Zadeh Mahani, Arnir H Mohammadi
    Journal PapersJOURNAL OF CHEMICAL AND ENGINEERING DATA , Volume 65 , Issue 1, 2020 January 1, {Pages 217-221 }

    Abstract

    Available water for the formation of natural gas hydrate at the industrial scale is normally saline water in which the dissolved salts inhibit the hydrate formation. To overcome this challenge, thermodynamic promoters can be used. In the present work, hydrate phase equilibria of methane + mixed promoters of tetrahydrofuran (THF) and tetra-n-butyl ammonium bromide (TBAB) were investigated in the absence and presence of NaCl, MgCl2, and NaCl + MgCl2 aqueous solutions. The phase equilibrium data, which were generated using an isochoric pressure-search method with a step heating technique, are reported in the pressure and temperature ranges of 1.09-5.16 MPa and 286.0-299.0 K, respectively. Equilibrium data show that an aqueous mixture of THF +

    Mathematical modeling of CO2 membrane absorption system using ionic liquid solutions

    Mohammad Darabi, Hassan Pahlavanzadeh
    Journal PapersChemical Engineering and Processing-Process Intensification , Volume 147 , 2020 January 1, {Pages 107743 }

    Abstract

    This research presents a 2D mathematical modeling based on finite difference method (FDM) for absorption of CO2 into aqueous solution of ionic liquids ([bmim][BF4] and [bmim][PF6]) by means of hydrophobic polypropylene hollow fiber membrane contactor (HFMC). Governing equations with their corresponding boundary conditions were solved and the results were validated against reported experimental data and excellent agreement was found. This study has provided an opportunity to investigate the effects of various ionic liquids with different concentrations as well as liquid and gas flow rate on CO2 absorption system in membrane contactors. The results demonstrated that molar flux of carbon dioxide for 25 wt% and 50 wt% solution of [bmim][PF6] is

    Experimental measurement and thermodynamic modeling of hydrate dissociation conditions for (CO2+ TBAC+ cyclopentane plus water) system

    Hassan Pahlavanzadeh, Samira Mohammadi, Amir H Mohammadi
    Journal PapersJOURNAL OF CHEMICAL THERMODYNAMICS , Volume 144 , 2020 May 1, {Pages }

    Abstract

    In this communication, experimental data of hydrate dissociation conditions for (CO2 + tetra nbutylammonium chloride (TBAC) + cyclopentane (CP) + water) system is reported in the temperature range of (286-293) K, the pressure range of (0.97-3.51) MPa, and at various concentrations of TBAC (0.05, 0.10, 0.18 and 0.25 mass fractions). The experiments were carried out using an isochoric pressure-search method to obtain the experimental data and the method validity was checked by regenerating (CO2 + TBAC) hydrate data reported in literature. A thermodynamic model was developed to estimate the experimental hydrate dissociation conditions, which employs e-NRTL activity coefficient model and PR equation of state to model the liquid and the vapor/g

    Hydrate formation under static and pulsed electric fields

    Hassan Pahlavanzadeh, Sima Hejazi, Mehrdad Manteghian
    Journal PapersJournal of Natural Gas Science and Engineering , 2020 March 3, {Pages 103232 }

    Abstract

    For the first time, numerous experiments were carried out to evaluate the effect of electric field (EF) on the mechanism of naturally occurring THF hydrate formation. The Statistical Package for the Social Sciences (SPSS) software was utilized to analyze the experimental data. First, the effect of static electric field (SEF) strength on nucleation temperature (T-nuc) and growth time (t-growth) studied. Based on the statistical results, increasing the intensity of SEF induces nucleation at a relatively high temperature. Furthermore, the completion of solidification takes a longer time than the same process in the absence of SEF. The notable point is that by switching a SEF to a pulsed electric field (PEF) of equal voltage, the EF effectivene

    Hydrate Dissociation Conditions of CH4 in the Presence of TBANO3 and Cyclopentane Promoter Mixture: Thermodynamic Modeling and Experimental Measurement

    Hassan Pahlavanzadeh, Hussein Hassan, Mohammad Pourranjbar
    Journal PapersJournal of Chemical & Engineering Data , Volume 65 , Issue 4, 2020 March 10, {Pages 1927-1935 }

    Abstract

    In this communication, the promoting effects of two additive mixtures (cyclopentane + TBANO3) on CH4 hydrate phase equilibrium were experimentally investigated using the isochoric method. The mass fractions of TBANO3 employed in this paper were 5, 10, 15, and 20. The results showed that cyclopentane is a good promoter in comparison with pure water + CH4 systems, and TBANO3 has a promoting effect but not like cyclopentane in compassion with pure water + CH4 systems. Additionally, the mixture of cyclopentane + TBANO3 has an important promoting effect in comparison with pure water and TBANO3 + water + CH4 systems, but it has a less promoting effect in comparison with cyclopentane + water + CH4 systems. Furthermore, a new thermodynamic model wa

    Comparison of nickel oxide catalyst on different supports for separation sulfur dioxide pollution through reduction to sulfur

    Seyyed Ebrahim Mousavi, HASSAN PAHLAVANZADEH, Masoud Khani, Ebrahim Habib Ale, Abbas Mozaffari
    Journal Papers , Volume 11 , Issue 200863, 2020 January 1, {Pages 86-97 }

    Abstract

    Separation of sulfur dioxide by a new environmentally friendly method through its reduction to sulfur was investigated. Nickel catalyst was synthesized on two bases of alumina and activated carbon, using a wet impregnation method. Both catalyst series in two combinations of different percentages of nickel metal were synthesized, characterized and their performance in the reactor test in terms of conversion rate and selectivity for the desired product were compared. The effect of reaction temperature was investigated in the range of 550-800 C. At low temperatures, activated carbon-nickel catalysts have better performance than the alumina-nickel catalyst. Effect of molar feed ratio of SO2/CH4= 3-1 was studied and stoichiometric feed ratio sho

    Hydrate Stability Conditions of CO2 + TBPB + Cyclopentane + Water System: Experimental Measurements and Thermodynamic Modeling

    Samira Mohammadi, Hassan Pahlavanzadeh, Amir H Mohammadi, Hussein Hassan, Sepideh Nouri
    Journal PapersJournal of Chemical & Engineering Data , Volume 65 , Issue 8, 2020 July 17, {Pages 4092-4099 }

    Abstract

    The current study provides experimental data and thermodynamic modeling of hydrate stability conditions of CO2 + tetra n-butylphosphonium bromide (TBPB) + cyclopentane (CP) + water system. The experimental results are presented from (288 to 292) K and (1.45 to 3.30) MPa at 0.10, 0.15, 0.17, and 0.20 mass fractions of TBPB in aqueous solutions. To measure the experimental data, an isochoric step-heating pressure-search method was applied. The validity of the method used in the current study was evaluated by regenerating previously reported experimental data on hydrate dissociation conditions of the carbon dioxide + TBPB + water system. The experimental results reveal that mixed promoters of TBPB + CP have the promotion effect compared to car

    Hydrate Phase Equilibria of Methane + TBAC + Water System in the Presence and Absence of NaCl and/or MgCl2

    Mohammad Pourranjbar, Hassan Pahlavanzadeh, Ali Askari Zadeh Mahani, Amir H Mohammadi
    Journal PapersJournal of Chemical & Engineering Data , Volume 65 , Issue 9, 2020 August 14, {Pages 4684-4691 }

    Abstract

    Gas hydrate technology has a great potential for natural gas storage and transportation on the industrial scale. The required water for hydrate formation could be supplied from the sea and river water, in which the dissolved salts inhibit the formation of hydrate. Some additives like tetra-n-butyl ammonium chloride (TBAC), which can form semiclathrate structures, can promote the thermodynamic stability conditions of hydrate formation. Although sufficient phase equilibrium data of TBAC semiclathrate hydrates of methane seem to be available, there are some discrepancies in the phase equilibrium data, particularly for the 0.05, 0.3, and 0.34 mass fractions of TBAC. Furthermore, the phase equilibrium data of TBAC in the presence of NaCl, MgCl2,

    Investigation of the Effect of NaCl on the Kinetics of R410a Hydrate Formation in the Presence and Absence of Cyclopentane with Potential Application in Hydrate-based Desalination

    Hassan Pahlavanzadeh, Amir Mohammad Javidani, Hamid Ganji, Abolfazl Mohammadi
    Journal PapersIndustrial & Engineering Chemistry Research , Volume 59 , Issue 31, 2020 July 14, {Pages 14115-14125 }

    Abstract

    Serious issues regarding the scarcity of freshwater encouraged researchers to work on various methods for seawater desalination. Hydrate-based desalination (HBD) is a novel method that has received investigators’ attention due to its outstanding properties. According to the literature, refrigerant hydrates have great potential to be employed in the HBD process because of their highly moderate phase equilibrium. The main purpose of the current study is to investigate the influence of different concentrations of NaCl (0, 1, 3.5, 5, and 8 wt %) on the major kinetic parameters of R410a refrigerant hydrate formation in the presence and absence of cyclopentane with the concentration of 0.5 mol % as a coformer. The experiments were performed in

    The novel usage of dead biomass of green algae of Schizomeris leibleinii for biosorption of copper (II) from aqueous solutions: Equilibrium, kinetics and thermodynamics

    Mohammad Tavana, Hassan Pahlavanzadeh, Mohammad Javad Zarei
    Journal PapersJournal of Environmental Chemical Engineering , Volume 8 , Issue 5, 2020 October 1, {Pages 104272 }

    Abstract

    Copper ion Cu(II) as a toxic and carcinogenic component can be deposited in liver resulting in subsequent abdominal pain, respiratory problems, liver and kidney failure. According to US Environmental Protection Agency, the maximum Cu(II) should be below 1.3 mg/L in industrial effluents. Cu(II) must be removed from wastewaters before disposal. Dead green algae Schizomeris leibleinii, an abundant solid waste, was applied as a novel sorbent for Cu(II) removal from aqueous solutions. Experimental factors including initial pH, contact time, adsorbent dosage, initial copper concentration and temperature were studied. FTIR and FE-SEM/EDS analyses were performed before and after adsorption. The maximum adsorption capacity was 55.06 mg/g obtained at

    CFD Modeling of CO2 Absorption in Membrane Contactors Using Aqueous Solutions of Monoethanolamine–Ionic Liquids

    Hassan Pahlavanzadeh, Mohammad Darabi, Vahid Rajabi Ghaleh, Omid Bakhtiari
    Journal PapersIndustrial & Engineering Chemistry Research , Volume 59 , Issue 41, 2020 September 18, {Pages 18629-18639 }

    Abstract

    The effects of addition of an ionic liquid to pure water as a physical absorbent and monoethanolamine (MEA) solutions as a chemical absorbent on carbon dioxide (CO2) absorption through hollow fiber membrane contactors were investigated using a 2D axisymmetric model. A numerical simulation was developed based on finite element method using computational fluid dynamics techniques. Liquid phase flowed in the tube side and gas mixture containing CO2 passed in the shell side of the membrane contactor in co-current and countercurrent modes. The simulation results are consistent with experimental data, and the root-mean-square error was calculated as 9 and 13% for pure water and 25 wt % for ionic liquid solution. The results showed that addition o

    Experimental Study on the Effect of Salinity and Amount of Hydrate Conversion on Desalination Parameters Based on R410a Hydrate Formation

    Amir Mohammad Javidani, Hassan Pahlavanzadeh, Hamid Ganji
    Journal PapersJournal of Chemical & Engineering Data , Volume 65 , Issue 10, 2020 September 30, {Pages 5037-5045 }

    Abstract

    Due to the contamination of freshwater resources, numerous techniques have been designed to address the challenges in achieving desalinated or freshwater over the past 50 years. Hydrate-based desalination (HBD) is one of the low-cost and efficient technologies receiving considerable interest of investigators in recent decades. Since R410a has the ability to form hydrates at mild conditions, in this research, three-stage desalination of synthesized seawater using R410a hydrate formation was carried out. The experiments were perormed in a stirred reactor at initial conditions of 11, 10, and 9 bar and 275.15 K. Moreover, cyclopentane was selected as a coformer for desalination experiments in the case of 9 bar. The desalination results showed t

    Phase Stability Conditions of the Methane+ Tetrabutylphosphonium Bromide+ Water Semiclathrate Hydrate System in the Presence and Absence of NaCl and/or MgCl2: Experimental?…

    Mohammad Pourranjbar, Hassan Pahlavanzadeh, Soheil Zebardast, Amir H Mohammadi
    Journal PapersEnergy & Fuels , 2020 October 27, {Pages }

    Abstract

    Gas hydrate, or clathrate hydrate, technology is considered to be one of the promising solutions for natural gas storage and transportation. Tetrabutylphosphonium bromide (TBPB) is capable of sorting out stability issues of hydrate formation effectively. On the other hand, using water from natural resources such as sea, river, or well instead of pure water is essential for hydrate formation in the industrial scale. The current study was organized to investigate the hydrate phase behaviors of CH4 + TBPB formed in saline solutions, which are necessary for potential industrial applications. For this purpose, we first generated hydrate dissociation conditions data of the CH4 + TBPB aqueous solution system over TBPB mass fractions of 0.05 and 0.

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    دروس نیمسال جاری

    • دكتري
      بهينه سازي در مهندسي شيمي ( واحد)
      دانشکده مهندسی شیمی، گروه فرآيند
    • كارشناسي ارشد
      پديده هاي خشك كردن ( واحد)

    دروس نیمسال قبل

    • دكتري
      اكسرژي ( واحد)
      دانشکده مهندسی شیمی، گروه فرآيند
    • كارشناسي ارشد
      رياضيات مهندسي پيشرفته ( واحد)
    • 1400
      جوادي, محمد
      شبيه سازي، آناليز انرژي و اگزرژي واحد پايدارسازي ميعانات گازي
    • 1400
      شعبانيان, هاتف
    • 1400
      قاسم پور, محمدامين
    • 1400
      يوسفي, ماكان
    • 1398
      رهبري, شاهرخ
      ارائه مدل هيبريدي جهت پيش بيني شرايط تشكيل هيدرات گازي
    • 1398
      شكرسخن, سينا
    • 1398
      قوي, اميررضا
    • معاون آموزشی دانشکده مهندسی شیمی
    • مدیر گروه آموزشی مهندسی شیمی
    • مدیر دفتر همکاریهای آموزشی و آزمون
    • مدیر گروه جداسازی
    • مدیر گروه ترمو سینیتیک
    • عضویت در هیات ممیزه دانشگاه(2 سال)
    • عضویت در کار گروه های مختلف در دانشگاه
      داده ای یافت نشد

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