meysam hajilari | Petroleum University of Technology,Iran (original) (raw)

Teaching Documents by meysam hajilari

Research paper thumbnail of Citing Data using ACS Style ACS Style Guidelines for Citing Data

The examples below are suggested formats for citing data such as physical property data or spectr... more The examples below are suggested formats for citing data such as physical property data or spectra obtained from various types of resources. The ACS Style Guide provides a few examples for citing data but does not include examples of the wide variety of online sources that are available. The purpose of the citation is to provide sufficient detail so that someone else can locate the data. Page numbers may not exist when citing online sources of data and therefore it may be necessary to indicate information like the CAS Registry Number or the entry name so that someone else can locate the exact information that was cited. For more information consult the ACS Style Guide: Effective Communication of Scientific Communication, 3 rd edition (Sciences and Technology Library Reference QD 8.5 A25 2006).

Papers by meysam hajilari

Research paper thumbnail of Mass transfer determination of ethanol adsorption on activated carbon: kinetic adsorption modeling

Heat and Mass Transfer, 2019

In present work, the batch kinetic adsorption of ethanol on a commercial activated carbon was exp... more In present work, the batch kinetic adsorption of ethanol on a commercial activated carbon was experimentally investigated and mathematically modeled in order to estimate effective diffusion and average film mass transfer coefficients. The effects of adsorbent loading, ethanol initial concentration and adsorbent particle size were studied. Two kinetic models were fitted to the experimental data. The results showed that the adsorption of ethanol on activated carbon is controlled by pore diffusion resistances. In addition, results showed that with increasing the initial concentration of ethanol in the bulk phase, the effective diffusion mass transfer slightly increased. Increasing the particle size and adsorbent loading slightly decreased the effective diffusion mass transfer. The average film mass transfer coefficient was increased by increasing initial ethanol concentration and decreased by increasing particle size and adsorbent loading. The estimated effective diffusion mass transfer coefficient was in the range of 2.47-3.17 × 10 −10 m 2 /s and average film mass transfer coefficient was in the range of 2.11-2.44 × 10 −6 1/s for different experimental conditions.

Research paper thumbnail of Equilibrium and dynamic adsorption of bioethanol on activated carbon in liquid phase

Chemical Engineering & Technology, 2018

Research paper thumbnail of Equilibrium adsorption of bioethanol from aqueous solution by synthesized silicalite adsorbents: experimental and modeling

Adsorption

AbstractIn this study, three silicalite adsorbents (silicalite a, silicalite b and silicalite c) ... more AbstractIn this study, three silicalite adsorbents (silicalite a, silicalite b and silicalite c) for ethanol adsorption from aqueous phase were synthesized using tetraethylorthosilicate, Ludax solution and a new organic silica source, Tabasheer, respectively. Tetrapropylammonium hydroxide was used as primary structure directing agent and starch as secondary structure directing agent. XRD, BET, FT-IR and FE-SEM were used to characterize synthesized adsorbents. Single component adsorption for ethanol and water was investigated by non-adsorbing solvent concept. Binary adsorption isotherms of both components were also experimentally measured. A model based on real adsorbed solution theory was developed to predict experimental adsorption data. The XRD characterization confirmed that all silicalite adsorbents have the same MFI-type structure. FE-SEM results revealed that the different silica sources have impact on surface area and morphology. The BET surface area for adsorbents is in order of silicalite c > silicalite a > silicalite b. However, uptake rate toward ethanol is in order of silicalite a > silicalite c > silicalite b. The model based on real adsorbed solution theory predicted experimental adsorption isotherm data very well. In addition, results revealed that the binary adsorption uptake is lower than single component adsorption.

Research paper thumbnail of Citing Data using ACS Style ACS Style Guidelines for Citing Data

The examples below are suggested formats for citing data such as physical property data or spectr... more The examples below are suggested formats for citing data such as physical property data or spectra obtained from various types of resources. The ACS Style Guide provides a few examples for citing data but does not include examples of the wide variety of online sources that are available. The purpose of the citation is to provide sufficient detail so that someone else can locate the data. Page numbers may not exist when citing online sources of data and therefore it may be necessary to indicate information like the CAS Registry Number or the entry name so that someone else can locate the exact information that was cited. For more information consult the ACS Style Guide: Effective Communication of Scientific Communication, 3 rd edition (Sciences and Technology Library Reference QD 8.5 A25 2006).

Research paper thumbnail of Mass transfer determination of ethanol adsorption on activated carbon: kinetic adsorption modeling

Heat and Mass Transfer, 2019

In present work, the batch kinetic adsorption of ethanol on a commercial activated carbon was exp... more In present work, the batch kinetic adsorption of ethanol on a commercial activated carbon was experimentally investigated and mathematically modeled in order to estimate effective diffusion and average film mass transfer coefficients. The effects of adsorbent loading, ethanol initial concentration and adsorbent particle size were studied. Two kinetic models were fitted to the experimental data. The results showed that the adsorption of ethanol on activated carbon is controlled by pore diffusion resistances. In addition, results showed that with increasing the initial concentration of ethanol in the bulk phase, the effective diffusion mass transfer slightly increased. Increasing the particle size and adsorbent loading slightly decreased the effective diffusion mass transfer. The average film mass transfer coefficient was increased by increasing initial ethanol concentration and decreased by increasing particle size and adsorbent loading. The estimated effective diffusion mass transfer coefficient was in the range of 2.47-3.17 × 10 −10 m 2 /s and average film mass transfer coefficient was in the range of 2.11-2.44 × 10 −6 1/s for different experimental conditions.

Research paper thumbnail of Equilibrium and dynamic adsorption of bioethanol on activated carbon in liquid phase

Chemical Engineering & Technology, 2018

Research paper thumbnail of Equilibrium adsorption of bioethanol from aqueous solution by synthesized silicalite adsorbents: experimental and modeling

Adsorption

AbstractIn this study, three silicalite adsorbents (silicalite a, silicalite b and silicalite c) ... more AbstractIn this study, three silicalite adsorbents (silicalite a, silicalite b and silicalite c) for ethanol adsorption from aqueous phase were synthesized using tetraethylorthosilicate, Ludax solution and a new organic silica source, Tabasheer, respectively. Tetrapropylammonium hydroxide was used as primary structure directing agent and starch as secondary structure directing agent. XRD, BET, FT-IR and FE-SEM were used to characterize synthesized adsorbents. Single component adsorption for ethanol and water was investigated by non-adsorbing solvent concept. Binary adsorption isotherms of both components were also experimentally measured. A model based on real adsorbed solution theory was developed to predict experimental adsorption data. The XRD characterization confirmed that all silicalite adsorbents have the same MFI-type structure. FE-SEM results revealed that the different silica sources have impact on surface area and morphology. The BET surface area for adsorbents is in order of silicalite c > silicalite a > silicalite b. However, uptake rate toward ethanol is in order of silicalite a > silicalite c > silicalite b. The model based on real adsorbed solution theory predicted experimental adsorption isotherm data very well. In addition, results revealed that the binary adsorption uptake is lower than single component adsorption.