Research Paper
2. Removal of Sulfur and Nitrogen Compounds from Diesel Fuel Using MSU-S

Sina Rashidi; Mohammad Reza Khosravi Nikou; Bagher Anvaripour; Touba Hamoule

Volume 4, Issue 1 , Winter 2015, Pages 1-16

http://dx.doi.org/10.22050/ijogst.2015.8603

Abstract
  The performance of MSU-S and its forms modified with phosphotungstic acid (HPW) and nickel (Ni) for the desulfurization and denitrogenation of model diesel fuel were studied. According to the results of the characteristic tests (N2 adsorption-desorption, XRD, SEM, and NH3-TPD), heteropoly acid incorporation ...  Read More

Research Paper
3. Organic Geochemistry and Paleoenvironments of Deposition of the Middle Jurassic Sediments from the Tabas Basin, Central Iran

Bahram Alizadeh; Majid Alipour; Bahram Habibnia; Ahmad Reza Gandomi-Sani; Behzad Khani; Saber Shirvani; AmirAbbas Jahangard

Volume 4, Issue 1 , Winter 2015, Pages 17-34

http://dx.doi.org/10.22050/ijogst.2015.8613

Abstract
  In an attempt to reconstruct the paleoenvironments of deposition for the Middle Jurassic Baghamshah formation, samples collected from six outcrop sections along the Shotori swell were subjected to detailed geochemical analyses. Bulk geochemical and biological marker data indicate a logical trend of the ...  Read More

Research Paper
4. A CFD Simulation of Hydrogen Production in Microreactors

Javad Sabziani; Atallah Sari

Volume 4, Issue 1 , Winter 2015, Pages 35-48

http://dx.doi.org/10.22050/ijogst.2015.8614

Abstract
  In this study, the modeling of hydrogen production process in microreactors by methanol-steam reforming reaction is investigated. The catalytic reaction of methanol-steam reforming producing hydrogen is simulated considering a 3D geometry for the microreactor. To calculate diffusion among species, mixture ...  Read More

Research Paper
5. Preventing Instability Phenomenon in Gas-lift Optimization

Mohammad Reza Mahdiani; Ehsan Khamehchi

Volume 4, Issue 1 , Winter 2015, Pages 49-65

http://dx.doi.org/10.22050/ijogst.2015.8615

Abstract
  One of the problems that sometimes occur in gas allocation optimization is instability phenomenon. This phenomenon reduces the oil production and damages downhole and surface facilities. Different works have studied the stability and suggested some solutions to override it, but most of them (such as ...  Read More

Research Paper
6. Measurement of Mass Transfer Coefficients of Natural Gas Mixture during Gas Hydrate Formation

Vahid Mohebbi; Reza Mosayebi Behbahani

Volume 4, Issue 1 , Winter 2015, Pages 66-80

http://dx.doi.org/10.22050/ijogst.2015.8616

Abstract
  In this study, mass transfer coefficients (MTC’s) of natural gas components during hydrate formation are reported. This work is based on the assumption that the transport of gas molecules from gas phase to aqueous phase is dominant among other resistances. Several experiments were conducted on ...  Read More

Research Paper
7. An Electrochemical Investigation of Nano Cerium Oxide/Graphene as an Electrode Material for Supercapacitors

Mohammadreza Shishesaz; Mehdi Robat Sarpoushi; Mohammad Ali Golozar

Volume 4, Issue 1 , Winter 2015, Pages 81-91

http://dx.doi.org/10.22050/ijogst.2015.8617

Abstract
  In this paper, the effect of cationic and anionic ion sizes on the charge storage capability of graphene nanosheets is investigated. The electrochemical properties of the produced electrode are studied using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques in 3M NaCl, ...  Read More