Computational simulation of CO2removal from gas mixtures by chemical absorbents in porous membranes

RSC Advances ◽  
2015 ◽  
Vol 5 (46) ◽  
pp. 36787-36797 ◽  
Author(s):  
Reza Fazaeli ◽  
Seyed Mohammad Reza Razavi ◽  
Mehdi Sattari Najafabadi ◽  
Rezvan Torkaman ◽  
Alireza Hemmati
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Hollow Fiber Membrane ◽  
Computational Simulation ◽  
Porous Membranes ◽  
Gas Mixture ◽  
Fiber Membrane ◽  
Chemical Absorption ◽  
Membrane Contactors ◽  
Dynamics Method

In this study chemical absorption of CO2from a N2/CO2gas mixture in tetramethylammonium glycinate ([N1111][Gly]) solution using hollow-fiber membrane contactors by employing the CFD (computational fluid dynamics) method was investigated.

Removal of carbon dioxide from pressurized CO2–CH4 gas mixture using hollow fiber membrane contactors

2010 ◽  
Vol 351 (1-2) ◽  
pp. 21-27 ◽  
Author(s):  
Sayed A.M. Marzouk ◽  
Mohamed H. Al-Marzouqi ◽  
Muftah H. El-Naas ◽  
Nadia Abdullatif ◽  
Zahoor M. Ismail
Keyword(s):  
Carbon Dioxide ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Gas Mixture ◽  
Fiber Membrane ◽  
Membrane Contactors

scholarly journals Ozone mass transfer behaviors on physical and chemical absorption for hollow fiber membrane contactors

2017 ◽  
Vol 76 (6) ◽  
pp. 1360-1369 ◽  
Author(s):  
Yong Zhang ◽  
Kuiling Li ◽  
Jun Wang ◽  
Deyin Hou ◽  
Huijuan Liu
Keyword(s):  
Mass Transfer ◽  
Hollow Fiber ◽  
Transfer Rate ◽  
Reaction Rate ◽  
Hollow Fiber Membrane ◽  
Mass Transfer Rate ◽  
Fiber Membrane ◽  
Chemical Absorption ◽  
Physical Absorption ◽  
Membrane Contactors

To understand the mass transfer behaviors in hollow fiber membrane contactors, ozone fluxes affected by various conditions and membranes were investigated. For physical absorption, mass transfer rate increased with liquid velocity and the ozone concentration in the gas. Gas flow rate was little affected when the velocity was larger than the critical value, which was 6.1 × 10−3m/s in this study. For chemical absorption, the flux was determined by the reaction rate between ozone and the absorbent. Therefore, concentration, species, and pH affected the mass transfer process markedly. For different absorbents, the order of mass transfer rate was the same as the reaction rate constant, which was phenol, sodium nitrite, hydrogen peroxide, and oxalate. Five hydrophobic membranes with various properties were employed and the mass transfer behavior can be described by the Graetz–Lévèque equation for the physical absorption process. The results showed the process was controlled by liquid film and the gas phase conditions, and membrane properties did not affect the ozone flux. For the chemical absorption, gas film, membrane and liquid film affected the mass transfer together, and none of them were negligible.

Simultaneous removal of CO2 and H2S from pressurized CO2–H2S–CH4 gas mixture using hollow fiber membrane contactors

2012 ◽  
Vol 86 ◽  
pp. 88-97 ◽  
Author(s):  
Sayed A.M. Marzouk ◽  
Mohamed H. Al-Marzouqi ◽  
Masaaki Teramoto ◽  
Nadia Abdullatif ◽  
Zahoor M. Ismail
Keyword(s):  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Gas Mixture ◽  
Simultaneous Removal ◽  
Fiber Membrane ◽  
Membrane Contactors

Removal of percentile level of H2S from pressurized H2S–CH4 gas mixture using hollow fiber membrane contactors and absorption solvents

2010 ◽  
Vol 360 (1-2) ◽  
pp. 436-441 ◽  
Author(s):  
Sayed A.M. Marzouk ◽  
Mohamed H. Al-Marzouqi ◽  
Nadia Abdullatif ◽  
Zahoor M. Ismail
Keyword(s):  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Gas Mixture ◽  
Fiber Membrane ◽  
Membrane Contactors
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