Chemical Engineering
1. Nitrogen Adsorption on Molecular Sieve Zeolites: An Experimental and Modeling Study

Erfan Tooraji; Ahad Ghaemi

Volume 9, Issue 1 , Winter 2020, , Pages 47-67

http://dx.doi.org/10.22050/ijogst.2019.186102.1506

Abstract
  Separation of nitrogen from a gaseous mixture is required for many industrial processes. In this study, the adsorption of nitrogen on zeolite 4A was investigated in terms of different adsorption isotherm models and kinetics. An increase in the initial pressure from 1 to 9 bar increases the amount of ...  Read More

Petroleum Engineering – Production
2. A Numerical Simulation Study on the Kinetics of Asphaltene Particle Flocculation in a Two-dimensional Shear Flow

Hadi Bagherzadeh; Zahra Mansourpour; Bahram Dabir

Volume 8, Issue 2 , Spring 2019, , Pages 53-72

http://dx.doi.org/10.22050/ijogst.2018.142463.1468

Abstract
  In the current study, the kinetics of asphaltene particle flocculation is investigated under a shear flow through numerical simulation. The discrete element method (DEM) is coupled with computational fluid dynamics (CFD) to model the agglomeration and fragmentation processes. In addition, a coalescence ...  Read More

3. 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