Volume 20 (2023)
Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 12 (2015)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 8 (2011)
Volume 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
Full article Petroleum and Reservoir Engineering
An optimization study by response surface methodology (RSM) on viscosity reduction of residue fuel oil exposed ultrasonic waves and solvent injection

A. Mohammadi Doust; M. Rahimi; M. Feyzi

Volume 13, Issue 1 , January 2016, Pages 3-19

  In this study, response surface methodology (RSM) based on central composite design (CCD) was applied for investigation of the effects of ultrasonic waves, temperature and solvent concentration on viscosity reduction of residue fuel oil (RFO). Ultrasonic irradiation was employed at low frequency of 24 ...  Read More

Full article Polymer Engineering and Technology,
Optimization of Synthesis of Expandable Polystyrene by Multi-Stage Initiator Dosing

F. derakhshanfard; A. vaziri; N. Fazeli; A. Heydarinasab

Volume 13, Issue 1 , January 2016, Pages 20-31

  Suspension polymerization process is commonly used to produce expandable polystyrene. In the conventional method for producing this polymer, two different initiators are added to the process at two different temperature levels. In the industrial scale, this process is time consuming and difficult to ...  Read More

Full article Petroleum and Reservoir Engineering
Lipase Immobilized into Novel GPTMS: TMOS Derived Sol-Gels and Its Application for Biodiesel Production from Waste Oil

M. Nikpour; M. Pazouki

Volume 13, Issue 1 , January 2016, Pages 32-46

  In this essay, lipase from Burkholderia cepacia was immobilized into 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetramethoxysilane (TMOS) derived sol-gels. GPTMS:TMOS molar ratio of 1:3 was found to yield the best result. The morphological characteristics were investigated based on SEM and BET analysis. ...  Read More

Full article Environmental Engineering,
CO2 biofixation by Dunaliella Salina in batch and semi-continuous cultivations, using hydrophobic and hydrophilic poly ethylene (PE) hollow fiber membrane photobioreactors

V. Mortezaeikia; R. Yegani; M.A. Hejazi; S. Chegini

Volume 13, Issue 1 , January 2016, Pages 47-59

  In this work, performance of hollow fiber membrane photobioreactor (HFMPB) on the growth of Dunaliella Salina (G26) at various aeration rates (0.1 and 0.2 VVm) and medium re-circulation flow rates (500 and 1000 mL/h) were studied. Cultivation was carried out at both batch and semi-continuous modes in ...  Read More

Full article Process Control and Engineering, Process Safety, HSE
Bubble formation on a single orifice in a gas solid fluidized bed using digital image analysis

A. Dehghan Lotfabad; S. Movahedirad; M.T. Sadeghi

Volume 13, Issue 1 , January 2016, Pages 60-72

  Digital Image Analysis (DIA) has been employed to characterize the time evolution of a bubble injected from a single orifice into a pseudo 2-dimansional gas-solid fluidized bed. The injected bubble diameter increased with the square root of time before detachment. During bubble free flight in the bed, ...  Read More

Full article Modeling and Simulation
Prediction of the Effect of Polymer Membrane Composition in a Dry Air Humidification Process via Neural Network Modeling

M. Fakhroleslam; A. Samimi; S.A. Mousavi; R. Rezaei

Volume 13, Issue 1 , January 2016, Pages 73-83

  Utilization of membrane humidifiers is one of the methods commonly used to humidify reactant gases in polymer electrolyte membrane fuel cells (PEMFC). In this study, polymeric porous membranes with different compositions were prepared to be used in a membrane humidifier module and were employed in a ...  Read More

Research note Petroleum and Reservoir Engineering
An Empirical Correlation to Predict the Ignition Delay Time for Some Hydrocarbon Fuels

F. S. Shariatmadar; Sh. Ghanbari Pakdehi; M. A. Zarei

Volume 13, Issue 1 , January 2016, Pages 84-97

  Examination of the available ignition delay time data and correlations in the case of methane, butane, heptane, decane, kerosene, Jet-A and ethylene fuels, allowed the derivation and recommendation of standard equations for this property. In this study, a new accurate substance dependent equation for ...  Read More